./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d9fefadeb2433964027133b2762439d0736284a9020eef9186f2d2400ba62b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:05:36,360 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:05:36,450 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:05:36,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:05:36,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:05:36,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:05:36,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:05:36,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:05:36,477 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:05:36,477 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:05:36,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:05:36,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:05:36,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:05:36,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:05:36,478 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:05:36,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:05:36,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:05:36,478 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:05:36,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:05:36,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:05:36,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:05:36,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:05:36,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:05:36,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:05:36,479 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:05:36,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:05:36,479 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:05:36,479 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:05:36,479 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:05:36,479 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:05:36,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:05:36,480 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:05:36,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:05:36,480 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:05:36,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:05:36,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:05:36,480 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:05:36,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:05:36,480 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:05:36,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:05:36,481 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:05:36,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:05:36,481 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:05:36,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:05:36,481 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:05:36,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:05:36,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:05:36,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:05:36,481 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d9fefadeb2433964027133b2762439d0736284a9020eef9186f2d2400ba62b5 [2024-11-28 03:05:36,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:05:36,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:05:36,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:05:36,738 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:05:36,738 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:05:36,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i [2024-11-28 03:05:39,673 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/data/efca28a30/c242418cf0a64754a000e6652e36ddb7/FLAGcca1c5f32 [2024-11-28 03:05:39,979 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:05:39,983 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i [2024-11-28 03:05:40,003 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/data/efca28a30/c242418cf0a64754a000e6652e36ddb7/FLAGcca1c5f32 [2024-11-28 03:05:40,250 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/data/efca28a30/c242418cf0a64754a000e6652e36ddb7 [2024-11-28 03:05:40,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:05:40,256 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:05:40,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:05:40,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:05:40,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:05:40,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75174171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40, skipping insertion in model container [2024-11-28 03:05:40,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:05:40,468 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i[916,929] [2024-11-28 03:05:40,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:05:40,602 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:05:40,613 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i[916,929] [2024-11-28 03:05:40,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:05:40,680 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:05:40,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40 WrapperNode [2024-11-28 03:05:40,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:05:40,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:05:40,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:05:40,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:05:40,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,716 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,763 INFO L138 Inliner]: procedures = 29, calls = 181, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 574 [2024-11-28 03:05:40,763 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:05:40,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:05:40,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:05:40,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:05:40,775 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,782 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,802 INFO L175 MemorySlicer]: Split 147 memory accesses to 5 slices as follows [2, 41, 11, 16, 77]. 52 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 5, 2, 1, 6]. The 18 writes are split as follows [0, 8, 2, 1, 7]. [2024-11-28 03:05:40,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,802 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,825 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,835 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:05:40,853 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:05:40,853 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:05:40,853 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:05:40,854 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40" (1/1) ... [2024-11-28 03:05:40,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:05:40,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:05:40,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:05:40,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:05:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:05:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-28 03:05:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-28 03:05:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-28 03:05:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-28 03:05:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-28 03:05:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:05:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:05:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:05:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:05:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:05:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-28 03:05:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-28 03:05:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-28 03:05:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-28 03:05:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-28 03:05:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:05:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:05:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:05:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:05:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:05:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-28 03:05:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-28 03:05:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-28 03:05:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-28 03:05:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-28 03:05:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:05:40,925 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:05:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:05:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:05:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:05:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:05:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:05:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:05:40,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:05:41,121 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:05:41,123 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:05:41,960 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2024-11-28 03:05:41,960 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:05:41,980 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:05:41,980 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:05:41,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:41 BoogieIcfgContainer [2024-11-28 03:05:41,980 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:05:41,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:05:41,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:05:41,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:05:41,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:05:40" (1/3) ... [2024-11-28 03:05:41,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e820eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:05:41, skipping insertion in model container [2024-11-28 03:05:41,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:40" (2/3) ... [2024-11-28 03:05:41,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e820eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:05:41, skipping insertion in model container [2024-11-28 03:05:41,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:41" (3/3) ... [2024-11-28 03:05:41,996 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-56.i [2024-11-28 03:05:42,012 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:05:42,014 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-56.i that has 2 procedures, 126 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:05:42,098 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:05:42,111 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f6ca0a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:05:42,112 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:05:42,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 105 states have internal predecessors, (149), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 03:05:42,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:05:42,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:42,136 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:42,137 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:05:42,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:42,143 INFO L85 PathProgramCache]: Analyzing trace with hash -70143542, now seen corresponding path program 1 times [2024-11-28 03:05:42,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:42,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554804036] [2024-11-28 03:05:42,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:42,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:42,540 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-28 03:05:42,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:42,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554804036] [2024-11-28 03:05:42,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554804036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:05:42,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508690934] [2024-11-28 03:05:42,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:42,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:05:42,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:05:42,546 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:05:42,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:05:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:42,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:05:42,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:05:42,967 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-28 03:05:42,967 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:05:42,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508690934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:42,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:05:42,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:05:42,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682386138] [2024-11-28 03:05:42,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:42,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:05:42,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:42,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:05:42,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:05:43,000 INFO L87 Difference]: Start difference. First operand has 126 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 105 states have internal predecessors, (149), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:05:43,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:43,036 INFO L93 Difference]: Finished difference Result 245 states and 387 transitions. [2024-11-28 03:05:43,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:05:43,038 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 151 [2024-11-28 03:05:43,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:43,045 INFO L225 Difference]: With dead ends: 245 [2024-11-28 03:05:43,045 INFO L226 Difference]: Without dead ends: 122 [2024-11-28 03:05:43,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:05:43,051 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:43,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:05:43,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-28 03:05:43,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-28 03:05:43,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 101 states have (on average 1.4059405940594059) internal successors, (142), 101 states have internal predecessors, (142), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 03:05:43,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 180 transitions. [2024-11-28 03:05:43,098 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 180 transitions. Word has length 151 [2024-11-28 03:05:43,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:43,098 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 180 transitions. [2024-11-28 03:05:43,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:05:43,099 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 180 transitions. [2024-11-28 03:05:43,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:05:43,102 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:43,102 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:43,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:05:43,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:05:43,303 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:05:43,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:43,303 INFO L85 PathProgramCache]: Analyzing trace with hash 155255632, now seen corresponding path program 1 times [2024-11-28 03:05:43,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:43,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014459129] [2024-11-28 03:05:43,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:43,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:43,750 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:05:43,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:43,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014459129] [2024-11-28 03:05:43,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014459129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:43,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:05:43,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:05:43,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664057413] [2024-11-28 03:05:43,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:43,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:05:43,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:43,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:05:43,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:05:43,756 INFO L87 Difference]: Start difference. First operand 122 states and 180 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:05:43,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:43,807 INFO L93 Difference]: Finished difference Result 242 states and 359 transitions. [2024-11-28 03:05:43,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:05:43,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:05:43,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:43,811 INFO L225 Difference]: With dead ends: 242 [2024-11-28 03:05:43,811 INFO L226 Difference]: Without dead ends: 123 [2024-11-28 03:05:43,815 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:05:43,816 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:43,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 352 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:05:43,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-28 03:05:43,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-28 03:05:43,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 102 states have (on average 1.4019607843137254) internal successors, (143), 102 states have internal predecessors, (143), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 03:05:43,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 181 transitions. [2024-11-28 03:05:43,842 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 181 transitions. Word has length 151 [2024-11-28 03:05:43,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:43,846 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 181 transitions. [2024-11-28 03:05:43,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:05:43,847 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 181 transitions. [2024-11-28 03:05:43,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:05:43,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:43,852 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:43,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:05:43,852 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:05:43,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:43,853 INFO L85 PathProgramCache]: Analyzing trace with hash -662392818, now seen corresponding path program 1 times [2024-11-28 03:05:43,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:43,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884372873] [2024-11-28 03:05:43,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:43,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:46,626 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:05:46,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:46,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884372873] [2024-11-28 03:05:46,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884372873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:46,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:05:46,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:05:46,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307547678] [2024-11-28 03:05:46,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:46,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:05:46,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:46,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:05:46,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:05:46,630 INFO L87 Difference]: Start difference. First operand 123 states and 181 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:05:48,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:48,508 INFO L93 Difference]: Finished difference Result 725 states and 1076 transitions. [2024-11-28 03:05:48,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:05:48,509 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:05:48,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:48,515 INFO L225 Difference]: With dead ends: 725 [2024-11-28 03:05:48,515 INFO L226 Difference]: Without dead ends: 605 [2024-11-28 03:05:48,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:05:48,524 INFO L435 NwaCegarLoop]: 269 mSDtfsCounter, 979 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:48,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 2084 Invalid, 1104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [152 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:05:48,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-28 03:05:48,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 382. [2024-11-28 03:05:48,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 331 states have (on average 1.4501510574018126) internal successors, (480), 332 states have internal predecessors, (480), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-28 03:05:48,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 574 transitions. [2024-11-28 03:05:48,602 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 574 transitions. Word has length 151 [2024-11-28 03:05:48,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:48,605 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 574 transitions. [2024-11-28 03:05:48,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:05:48,606 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 574 transitions. [2024-11-28 03:05:48,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 03:05:48,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:48,609 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:48,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:05:48,609 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:05:48,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:48,610 INFO L85 PathProgramCache]: Analyzing trace with hash 439138535, now seen corresponding path program 1 times [2024-11-28 03:05:48,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:48,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812911389] [2024-11-28 03:05:48,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:48,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:48,753 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:05:48,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:48,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812911389] [2024-11-28 03:05:48,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812911389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:48,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:05:48,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:05:48,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187971144] [2024-11-28 03:05:48,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:48,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:05:48,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:48,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:05:48,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:05:48,755 INFO L87 Difference]: Start difference. First operand 382 states and 574 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:05:48,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:48,807 INFO L93 Difference]: Finished difference Result 758 states and 1141 transitions. [2024-11-28 03:05:48,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:05:48,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-28 03:05:48,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:48,813 INFO L225 Difference]: With dead ends: 758 [2024-11-28 03:05:48,813 INFO L226 Difference]: Without dead ends: 379 [2024-11-28 03:05:48,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:05:48,814 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:48,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:05:48,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-28 03:05:48,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2024-11-28 03:05:48,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 328 states have (on average 1.4451219512195121) internal successors, (474), 329 states have internal predecessors, (474), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-28 03:05:48,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 568 transitions. [2024-11-28 03:05:48,846 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 568 transitions. Word has length 152 [2024-11-28 03:05:48,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:48,846 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 568 transitions. [2024-11-28 03:05:48,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:05:48,847 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 568 transitions. [2024-11-28 03:05:48,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 03:05:48,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:48,849 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:48,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:05:48,849 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:05:48,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:48,850 INFO L85 PathProgramCache]: Analyzing trace with hash -234426631, now seen corresponding path program 1 times [2024-11-28 03:05:48,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:48,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296599600] [2024-11-28 03:05:48,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:48,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:48,993 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:05:48,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:48,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296599600] [2024-11-28 03:05:48,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296599600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:48,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:05:48,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:05:48,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868657103] [2024-11-28 03:05:48,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:48,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:05:48,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:48,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:05:48,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:05:48,995 INFO L87 Difference]: Start difference. First operand 379 states and 568 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:05:49,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:49,048 INFO L93 Difference]: Finished difference Result 760 states and 1143 transitions. [2024-11-28 03:05:49,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:05:49,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-28 03:05:49,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:49,051 INFO L225 Difference]: With dead ends: 760 [2024-11-28 03:05:49,051 INFO L226 Difference]: Without dead ends: 384 [2024-11-28 03:05:49,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:05:49,055 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:49,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 344 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:05:49,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-28 03:05:49,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-11-28 03:05:49,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 333 states have (on average 1.4384384384384385) internal successors, (479), 334 states have internal predecessors, (479), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-28 03:05:49,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 573 transitions. [2024-11-28 03:05:49,100 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 573 transitions. Word has length 152 [2024-11-28 03:05:49,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:49,101 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 573 transitions. [2024-11-28 03:05:49,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:05:49,101 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 573 transitions. [2024-11-28 03:05:49,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 03:05:49,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:49,105 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:49,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:05:49,105 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:05:49,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:49,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1910188739, now seen corresponding path program 1 times [2024-11-28 03:05:49,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:49,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104142999] [2024-11-28 03:05:49,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:49,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:49,224 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:05:49,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:49,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104142999] [2024-11-28 03:05:49,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104142999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:49,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:05:49,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:05:49,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148231055] [2024-11-28 03:05:49,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:49,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:05:49,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:49,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:05:49,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:05:49,226 INFO L87 Difference]: Start difference. First operand 384 states and 573 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:05:49,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:49,286 INFO L93 Difference]: Finished difference Result 760 states and 1135 transitions. [2024-11-28 03:05:49,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:05:49,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-28 03:05:49,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:49,291 INFO L225 Difference]: With dead ends: 760 [2024-11-28 03:05:49,294 INFO L226 Difference]: Without dead ends: 379 [2024-11-28 03:05:49,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:05:49,295 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:49,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:05:49,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-28 03:05:49,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2024-11-28 03:05:49,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 328 states have (on average 1.4298780487804879) internal successors, (469), 329 states have internal predecessors, (469), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-28 03:05:49,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 563 transitions. [2024-11-28 03:05:49,330 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 563 transitions. Word has length 152 [2024-11-28 03:05:49,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:49,331 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 563 transitions. [2024-11-28 03:05:49,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:05:49,331 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 563 transitions. [2024-11-28 03:05:49,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:05:49,334 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:49,334 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:49,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:05:49,335 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:05:49,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:49,335 INFO L85 PathProgramCache]: Analyzing trace with hash -2133860781, now seen corresponding path program 1 times [2024-11-28 03:05:49,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:49,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970193113] [2024-11-28 03:05:49,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:49,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:49,662 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-28 03:05:49,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:49,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970193113] [2024-11-28 03:05:49,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970193113] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:05:49,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623457516] [2024-11-28 03:05:49,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:49,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:05:49,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:05:49,666 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:05:49,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:05:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:49,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:05:49,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:05:50,010 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:05:50,011 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:05:50,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623457516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:50,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:05:50,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-28 03:05:50,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535087828] [2024-11-28 03:05:50,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:50,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:05:50,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:50,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:05:50,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:05:50,014 INFO L87 Difference]: Start difference. First operand 379 states and 563 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:05:50,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:50,070 INFO L93 Difference]: Finished difference Result 764 states and 1135 transitions. [2024-11-28 03:05:50,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:05:50,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-28 03:05:50,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:50,074 INFO L225 Difference]: With dead ends: 764 [2024-11-28 03:05:50,077 INFO L226 Difference]: Without dead ends: 388 [2024-11-28 03:05:50,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:05:50,079 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:50,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 691 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:05:50,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-28 03:05:50,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2024-11-28 03:05:50,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 337 states have (on average 1.4183976261127595) internal successors, (478), 338 states have internal predecessors, (478), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-28 03:05:50,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 572 transitions. [2024-11-28 03:05:50,126 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 572 transitions. Word has length 153 [2024-11-28 03:05:50,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:50,128 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 572 transitions. [2024-11-28 03:05:50,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:05:50,129 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 572 transitions. [2024-11-28 03:05:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:05:50,132 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:50,133 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:50,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:05:50,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:05:50,334 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:05:50,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:50,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1297495016, now seen corresponding path program 1 times [2024-11-28 03:05:50,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:50,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038118645] [2024-11-28 03:05:50,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:50,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:52,506 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:05:52,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:52,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038118645] [2024-11-28 03:05:52,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038118645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:52,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:05:52,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:05:52,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383856381] [2024-11-28 03:05:52,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:52,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:05:52,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:52,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:05:52,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:05:52,513 INFO L87 Difference]: Start difference. First operand 388 states and 572 transitions. Second operand has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 03:05:53,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:53,407 INFO L93 Difference]: Finished difference Result 986 states and 1455 transitions. [2024-11-28 03:05:53,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:05:53,409 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-28 03:05:53,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:53,414 INFO L225 Difference]: With dead ends: 986 [2024-11-28 03:05:53,414 INFO L226 Difference]: Without dead ends: 601 [2024-11-28 03:05:53,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:05:53,417 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 120 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:53,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1030 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:05:53,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-28 03:05:53,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 527. [2024-11-28 03:05:53,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 466 states have (on average 1.4356223175965666) internal successors, (669), 468 states have internal predecessors, (669), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 03:05:53,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 781 transitions. [2024-11-28 03:05:53,483 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 781 transitions. Word has length 153 [2024-11-28 03:05:53,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:53,486 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 781 transitions. [2024-11-28 03:05:53,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 03:05:53,486 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 781 transitions. [2024-11-28 03:05:53,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:05:53,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:53,492 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:53,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:05:53,493 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:05:53,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:53,493 INFO L85 PathProgramCache]: Analyzing trace with hash 17631338, now seen corresponding path program 1 times [2024-11-28 03:05:53,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:53,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583603615] [2024-11-28 03:05:53,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:53,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:55,115 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:05:55,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:55,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583603615] [2024-11-28 03:05:55,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583603615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:55,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:05:55,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:05:55,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293194800] [2024-11-28 03:05:55,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:55,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:05:55,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:55,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:05:55,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:05:55,118 INFO L87 Difference]: Start difference. First operand 527 states and 781 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:05:56,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:56,481 INFO L93 Difference]: Finished difference Result 1223 states and 1810 transitions. [2024-11-28 03:05:56,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:05:56,481 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2024-11-28 03:05:56,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:56,485 INFO L225 Difference]: With dead ends: 1223 [2024-11-28 03:05:56,485 INFO L226 Difference]: Without dead ends: 699 [2024-11-28 03:05:56,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:05:56,488 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 655 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:56,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 1213 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:05:56,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-28 03:05:56,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 553. [2024-11-28 03:05:56,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 492 states have (on average 1.4451219512195121) internal successors, (711), 494 states have internal predecessors, (711), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 03:05:56,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 823 transitions. [2024-11-28 03:05:56,540 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 823 transitions. Word has length 153 [2024-11-28 03:05:56,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:56,540 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 823 transitions. [2024-11-28 03:05:56,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:05:56,541 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 823 transitions. [2024-11-28 03:05:56,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:05:56,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:56,545 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:56,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:05:56,545 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:05:56,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:56,546 INFO L85 PathProgramCache]: Analyzing trace with hash -569174676, now seen corresponding path program 1 times [2024-11-28 03:05:56,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:56,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311572200] [2024-11-28 03:05:56,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:56,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:58,358 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:05:58,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:58,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311572200] [2024-11-28 03:05:58,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311572200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:58,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:05:58,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:05:58,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168130813] [2024-11-28 03:05:58,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:58,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:05:58,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:58,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:05:58,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:05:58,360 INFO L87 Difference]: Start difference. First operand 553 states and 823 transitions. Second operand has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 03:05:59,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:59,285 INFO L93 Difference]: Finished difference Result 1171 states and 1737 transitions. [2024-11-28 03:05:59,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:05:59,286 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-28 03:05:59,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:59,291 INFO L225 Difference]: With dead ends: 1171 [2024-11-28 03:05:59,291 INFO L226 Difference]: Without dead ends: 621 [2024-11-28 03:05:59,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:05:59,294 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 115 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:59,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1035 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:05:59,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-11-28 03:05:59,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 548. [2024-11-28 03:05:59,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 487 states have (on average 1.4435318275154003) internal successors, (703), 489 states have internal predecessors, (703), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 03:05:59,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 815 transitions. [2024-11-28 03:05:59,348 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 815 transitions. Word has length 153 [2024-11-28 03:05:59,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:59,349 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 815 transitions. [2024-11-28 03:05:59,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 03:05:59,349 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 815 transitions. [2024-11-28 03:05:59,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:05:59,351 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:59,351 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:59,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:05:59,353 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:05:59,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:59,354 INFO L85 PathProgramCache]: Analyzing trace with hash 561773252, now seen corresponding path program 1 times [2024-11-28 03:05:59,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:59,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789582164] [2024-11-28 03:05:59,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:59,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:59,539 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:05:59,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:59,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789582164] [2024-11-28 03:05:59,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789582164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:05:59,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:05:59,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:05:59,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897539463] [2024-11-28 03:05:59,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:05:59,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:05:59,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:59,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:05:59,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:05:59,540 INFO L87 Difference]: Start difference. First operand 548 states and 815 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:05:59,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:59,678 INFO L93 Difference]: Finished difference Result 1128 states and 1678 transitions. [2024-11-28 03:05:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:05:59,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-28 03:05:59,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:59,682 INFO L225 Difference]: With dead ends: 1128 [2024-11-28 03:05:59,683 INFO L226 Difference]: Without dead ends: 583 [2024-11-28 03:05:59,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:05:59,686 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 78 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:59,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 642 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:05:59,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-28 03:05:59,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 543. [2024-11-28 03:05:59,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 482 states have (on average 1.4315352697095436) internal successors, (690), 484 states have internal predecessors, (690), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 03:05:59,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 802 transitions. [2024-11-28 03:05:59,736 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 802 transitions. Word has length 153 [2024-11-28 03:05:59,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:59,736 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 802 transitions. [2024-11-28 03:05:59,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:05:59,736 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 802 transitions. [2024-11-28 03:05:59,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:05:59,739 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:59,739 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:59,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:05:59,739 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:05:59,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:59,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1542718732, now seen corresponding path program 1 times [2024-11-28 03:05:59,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:59,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171226206] [2024-11-28 03:05:59,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:59,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:01,200 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:01,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:01,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171226206] [2024-11-28 03:06:01,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171226206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:01,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:01,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:06:01,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401714133] [2024-11-28 03:06:01,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:01,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:06:01,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:01,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:06:01,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:06:01,202 INFO L87 Difference]: Start difference. First operand 543 states and 802 transitions. Second operand has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:02,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:02,025 INFO L93 Difference]: Finished difference Result 1279 states and 1887 transitions. [2024-11-28 03:06:02,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:06:02,026 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-11-28 03:06:02,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:02,031 INFO L225 Difference]: With dead ends: 1279 [2024-11-28 03:06:02,031 INFO L226 Difference]: Without dead ends: 739 [2024-11-28 03:06:02,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:06:02,034 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 110 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:02,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1509 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:06:02,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-28 03:06:02,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 611. [2024-11-28 03:06:02,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 550 states have (on average 1.4454545454545455) internal successors, (795), 552 states have internal predecessors, (795), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 03:06:02,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 907 transitions. [2024-11-28 03:06:02,101 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 907 transitions. Word has length 153 [2024-11-28 03:06:02,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:02,102 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 907 transitions. [2024-11-28 03:06:02,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:02,102 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 907 transitions. [2024-11-28 03:06:02,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:06:02,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:02,106 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:02,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:06:02,106 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:02,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:02,107 INFO L85 PathProgramCache]: Analyzing trace with hash -2129524746, now seen corresponding path program 1 times [2024-11-28 03:06:02,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:02,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597148215] [2024-11-28 03:06:02,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:02,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:03,271 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:03,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:03,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597148215] [2024-11-28 03:06:03,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597148215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:03,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:03,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:06:03,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347736447] [2024-11-28 03:06:03,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:03,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:06:03,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:03,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:06:03,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:03,273 INFO L87 Difference]: Start difference. First operand 611 states and 907 transitions. Second operand has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:03,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:03,878 INFO L93 Difference]: Finished difference Result 1309 states and 1930 transitions. [2024-11-28 03:06:03,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:06:03,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-11-28 03:06:03,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:03,884 INFO L225 Difference]: With dead ends: 1309 [2024-11-28 03:06:03,884 INFO L226 Difference]: Without dead ends: 701 [2024-11-28 03:06:03,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:06:03,887 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 122 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:03,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 866 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:06:03,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-11-28 03:06:03,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 680. [2024-11-28 03:06:03,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 599 states have (on average 1.4106844741235391) internal successors, (845), 602 states have internal predecessors, (845), 73 states have call successors, (73), 7 states have call predecessors, (73), 7 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 03:06:03,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 991 transitions. [2024-11-28 03:06:03,952 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 991 transitions. Word has length 153 [2024-11-28 03:06:03,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:03,952 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 991 transitions. [2024-11-28 03:06:03,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:03,953 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 991 transitions. [2024-11-28 03:06:03,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:06:03,956 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:03,956 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:03,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:06:03,956 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:03,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:03,957 INFO L85 PathProgramCache]: Analyzing trace with hash 788021926, now seen corresponding path program 1 times [2024-11-28 03:06:03,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:03,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998829063] [2024-11-28 03:06:03,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:03,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:05,582 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:05,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:05,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998829063] [2024-11-28 03:06:05,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998829063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:05,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:05,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:06:05,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120052870] [2024-11-28 03:06:05,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:05,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:06:05,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:05,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:06:05,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:06:05,585 INFO L87 Difference]: Start difference. First operand 680 states and 991 transitions. Second operand has 12 states, 10 states have (on average 6.1) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:07,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:07,471 INFO L93 Difference]: Finished difference Result 1626 states and 2352 transitions. [2024-11-28 03:06:07,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:06:07,472 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-11-28 03:06:07,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:07,477 INFO L225 Difference]: With dead ends: 1626 [2024-11-28 03:06:07,477 INFO L226 Difference]: Without dead ends: 949 [2024-11-28 03:06:07,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:06:07,479 INFO L435 NwaCegarLoop]: 309 mSDtfsCounter, 733 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:07,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 2213 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:06:07,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-28 03:06:07,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 676. [2024-11-28 03:06:07,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 595 states have (on average 1.4067226890756304) internal successors, (837), 598 states have internal predecessors, (837), 73 states have call successors, (73), 7 states have call predecessors, (73), 7 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 03:06:07,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 983 transitions. [2024-11-28 03:06:07,537 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 983 transitions. Word has length 153 [2024-11-28 03:06:07,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:07,537 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 983 transitions. [2024-11-28 03:06:07,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:07,537 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 983 transitions. [2024-11-28 03:06:07,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:06:07,540 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:07,540 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:07,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:06:07,540 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:07,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:07,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1078647766, now seen corresponding path program 1 times [2024-11-28 03:06:07,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:07,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753668540] [2024-11-28 03:06:07,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:07,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:09,862 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:09,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:09,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753668540] [2024-11-28 03:06:09,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753668540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:09,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:09,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:06:09,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26805256] [2024-11-28 03:06:09,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:09,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:06:09,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:09,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:06:09,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:06:09,864 INFO L87 Difference]: Start difference. First operand 676 states and 983 transitions. Second operand has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:14,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:14,668 INFO L93 Difference]: Finished difference Result 1600 states and 2315 transitions. [2024-11-28 03:06:14,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:06:14,668 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-11-28 03:06:14,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:14,676 INFO L225 Difference]: With dead ends: 1600 [2024-11-28 03:06:14,677 INFO L226 Difference]: Without dead ends: 927 [2024-11-28 03:06:14,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:06:14,680 INFO L435 NwaCegarLoop]: 298 mSDtfsCounter, 696 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 2477 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:14,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 2477 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 03:06:14,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2024-11-28 03:06:14,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 674. [2024-11-28 03:06:14,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 593 states have (on average 1.4047217537942664) internal successors, (833), 596 states have internal predecessors, (833), 73 states have call successors, (73), 7 states have call predecessors, (73), 7 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 03:06:14,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 979 transitions. [2024-11-28 03:06:14,749 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 979 transitions. Word has length 153 [2024-11-28 03:06:14,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:14,750 INFO L471 AbstractCegarLoop]: Abstraction has 674 states and 979 transitions. [2024-11-28 03:06:14,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:14,750 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 979 transitions. [2024-11-28 03:06:14,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:06:14,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:14,752 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:14,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:06:14,753 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:14,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:14,754 INFO L85 PathProgramCache]: Analyzing trace with hash -2052191822, now seen corresponding path program 1 times [2024-11-28 03:06:14,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:14,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010316255] [2024-11-28 03:06:14,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:14,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:15,311 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:15,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:15,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010316255] [2024-11-28 03:06:15,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010316255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:15,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:15,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:06:15,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170737972] [2024-11-28 03:06:15,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:15,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:15,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:15,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:15,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:15,313 INFO L87 Difference]: Start difference. First operand 674 states and 979 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:06:15,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:15,744 INFO L93 Difference]: Finished difference Result 1507 states and 2178 transitions. [2024-11-28 03:06:15,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:06:15,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2024-11-28 03:06:15,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:15,750 INFO L225 Difference]: With dead ends: 1507 [2024-11-28 03:06:15,751 INFO L226 Difference]: Without dead ends: 836 [2024-11-28 03:06:15,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:15,753 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 131 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:15,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1034 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:06:15,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-11-28 03:06:15,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 685. [2024-11-28 03:06:15,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 600 states have (on average 1.4) internal successors, (840), 603 states have internal predecessors, (840), 77 states have call successors, (77), 7 states have call predecessors, (77), 7 states have return successors, (77), 74 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-28 03:06:15,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 994 transitions. [2024-11-28 03:06:15,811 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 994 transitions. Word has length 153 [2024-11-28 03:06:15,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:15,812 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 994 transitions. [2024-11-28 03:06:15,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:06:15,812 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 994 transitions. [2024-11-28 03:06:15,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:06:15,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:15,815 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:15,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:06:15,815 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:15,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:15,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1990152208, now seen corresponding path program 1 times [2024-11-28 03:06:15,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:15,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27400871] [2024-11-28 03:06:15,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:15,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:17,187 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:17,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:17,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27400871] [2024-11-28 03:06:17,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27400871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:17,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:17,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:06:17,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263333457] [2024-11-28 03:06:17,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:17,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:06:17,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:17,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:06:17,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:06:17,189 INFO L87 Difference]: Start difference. First operand 685 states and 994 transitions. Second operand has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 03:06:17,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:17,948 INFO L93 Difference]: Finished difference Result 1517 states and 2199 transitions. [2024-11-28 03:06:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:06:17,948 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-28 03:06:17,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:17,955 INFO L225 Difference]: With dead ends: 1517 [2024-11-28 03:06:17,956 INFO L226 Difference]: Without dead ends: 835 [2024-11-28 03:06:17,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:06:17,958 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 109 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:17,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1729 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:06:17,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-28 03:06:18,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 768. [2024-11-28 03:06:18,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 673 states have (on average 1.3997028231797919) internal successors, (942), 677 states have internal predecessors, (942), 86 states have call successors, (86), 8 states have call predecessors, (86), 8 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 03:06:18,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1114 transitions. [2024-11-28 03:06:18,038 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1114 transitions. Word has length 153 [2024-11-28 03:06:18,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:18,039 INFO L471 AbstractCegarLoop]: Abstraction has 768 states and 1114 transitions. [2024-11-28 03:06:18,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 03:06:18,039 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1114 transitions. [2024-11-28 03:06:18,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:06:18,043 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:18,043 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:18,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:06:18,044 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:18,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:18,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1718009074, now seen corresponding path program 1 times [2024-11-28 03:06:18,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:18,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030362195] [2024-11-28 03:06:18,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:18,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:19,477 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:19,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:19,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030362195] [2024-11-28 03:06:19,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030362195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:19,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:19,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:06:19,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191645771] [2024-11-28 03:06:19,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:19,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:06:19,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:19,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:06:19,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:06:19,479 INFO L87 Difference]: Start difference. First operand 768 states and 1114 transitions. Second operand has 11 states, 7 states have (on average 8.714285714285714) internal successors, (61), 11 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-28 03:06:20,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:20,295 INFO L93 Difference]: Finished difference Result 1600 states and 2317 transitions. [2024-11-28 03:06:20,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:06:20,296 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 8.714285714285714) internal successors, (61), 11 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 153 [2024-11-28 03:06:20,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:20,301 INFO L225 Difference]: With dead ends: 1600 [2024-11-28 03:06:20,301 INFO L226 Difference]: Without dead ends: 835 [2024-11-28 03:06:20,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:06:20,303 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 107 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:20,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 2106 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:06:20,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-28 03:06:20,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 767. [2024-11-28 03:06:20,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 672 states have (on average 1.3958333333333333) internal successors, (938), 676 states have internal predecessors, (938), 86 states have call successors, (86), 8 states have call predecessors, (86), 8 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 03:06:20,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1110 transitions. [2024-11-28 03:06:20,361 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1110 transitions. Word has length 153 [2024-11-28 03:06:20,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:20,361 INFO L471 AbstractCegarLoop]: Abstraction has 767 states and 1110 transitions. [2024-11-28 03:06:20,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 8.714285714285714) internal successors, (61), 11 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-28 03:06:20,361 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1110 transitions. [2024-11-28 03:06:20,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:06:20,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:20,364 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:20,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:06:20,365 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:20,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:20,365 INFO L85 PathProgramCache]: Analyzing trace with hash 412170648, now seen corresponding path program 1 times [2024-11-28 03:06:20,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:20,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394262173] [2024-11-28 03:06:20,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:20,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:20,503 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:20,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:20,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394262173] [2024-11-28 03:06:20,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394262173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:20,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:20,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:06:20,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005510938] [2024-11-28 03:06:20,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:20,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:06:20,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:20,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:06:20,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:06:20,506 INFO L87 Difference]: Start difference. First operand 767 states and 1110 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:06:20,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:20,659 INFO L93 Difference]: Finished difference Result 1531 states and 2216 transitions. [2024-11-28 03:06:20,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:06:20,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-28 03:06:20,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:20,664 INFO L225 Difference]: With dead ends: 1531 [2024-11-28 03:06:20,664 INFO L226 Difference]: Without dead ends: 767 [2024-11-28 03:06:20,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:20,666 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 81 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:20,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 786 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:06:20,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-11-28 03:06:20,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 765. [2024-11-28 03:06:20,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 670 states have (on average 1.3940298507462687) internal successors, (934), 674 states have internal predecessors, (934), 86 states have call successors, (86), 8 states have call predecessors, (86), 8 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 03:06:20,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1106 transitions. [2024-11-28 03:06:20,718 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1106 transitions. Word has length 153 [2024-11-28 03:06:20,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:20,719 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 1106 transitions. [2024-11-28 03:06:20,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:06:20,719 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1106 transitions. [2024-11-28 03:06:20,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:06:20,722 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:20,722 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:20,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:06:20,722 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:20,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:20,723 INFO L85 PathProgramCache]: Analyzing trace with hash 254682777, now seen corresponding path program 1 times [2024-11-28 03:06:20,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:20,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078071723] [2024-11-28 03:06:20,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:20,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:20,795 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:20,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:20,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078071723] [2024-11-28 03:06:20,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078071723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:20,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:20,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:06:20,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206341876] [2024-11-28 03:06:20,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:20,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:20,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:20,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:20,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:20,799 INFO L87 Difference]: Start difference. First operand 765 states and 1106 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:06:20,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:20,865 INFO L93 Difference]: Finished difference Result 1517 states and 2193 transitions. [2024-11-28 03:06:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:06:20,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-11-28 03:06:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:20,871 INFO L225 Difference]: With dead ends: 1517 [2024-11-28 03:06:20,871 INFO L226 Difference]: Without dead ends: 755 [2024-11-28 03:06:20,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:06:20,876 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:20,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 344 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:06:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-28 03:06:20,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 755. [2024-11-28 03:06:20,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 660 states have (on average 1.387878787878788) internal successors, (916), 664 states have internal predecessors, (916), 86 states have call successors, (86), 8 states have call predecessors, (86), 8 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 03:06:20,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1088 transitions. [2024-11-28 03:06:20,940 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1088 transitions. Word has length 154 [2024-11-28 03:06:20,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:20,941 INFO L471 AbstractCegarLoop]: Abstraction has 755 states and 1088 transitions. [2024-11-28 03:06:20,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:06:20,941 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1088 transitions. [2024-11-28 03:06:20,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:20,943 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:20,943 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:20,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:06:20,943 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:20,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:20,944 INFO L85 PathProgramCache]: Analyzing trace with hash -301787730, now seen corresponding path program 1 times [2024-11-28 03:06:20,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:20,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588028915] [2024-11-28 03:06:20,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:20,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:23,411 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:23,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:23,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588028915] [2024-11-28 03:06:23,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588028915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:23,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:23,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 03:06:23,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048321017] [2024-11-28 03:06:23,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:23,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:06:23,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:23,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:06:23,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:06:23,414 INFO L87 Difference]: Start difference. First operand 755 states and 1088 transitions. Second operand has 18 states, 15 states have (on average 4.2) internal successors, (63), 18 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 03:06:26,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:26,539 INFO L93 Difference]: Finished difference Result 1886 states and 2691 transitions. [2024-11-28 03:06:26,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-28 03:06:26,540 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 4.2) internal successors, (63), 18 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-28 03:06:26,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:26,547 INFO L225 Difference]: With dead ends: 1886 [2024-11-28 03:06:26,547 INFO L226 Difference]: Without dead ends: 1134 [2024-11-28 03:06:26,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=326, Invalid=2026, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 03:06:26,551 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 1431 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:26,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1431 Valid, 2491 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 03:06:26,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2024-11-28 03:06:26,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 936. [2024-11-28 03:06:26,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 805 states have (on average 1.3577639751552795) internal successors, (1093), 811 states have internal predecessors, (1093), 116 states have call successors, (116), 14 states have call predecessors, (116), 14 states have return successors, (116), 110 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-28 03:06:26,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1325 transitions. [2024-11-28 03:06:26,657 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1325 transitions. Word has length 155 [2024-11-28 03:06:26,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:26,658 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1325 transitions. [2024-11-28 03:06:26,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 4.2) internal successors, (63), 18 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 03:06:26,659 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1325 transitions. [2024-11-28 03:06:26,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:26,661 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:26,662 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:26,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:06:26,662 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:26,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:26,662 INFO L85 PathProgramCache]: Analyzing trace with hash -239748116, now seen corresponding path program 1 times [2024-11-28 03:06:26,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:26,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604397259] [2024-11-28 03:06:26,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:26,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:28,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:28,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604397259] [2024-11-28 03:06:28,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604397259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:28,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:28,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 03:06:28,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290567480] [2024-11-28 03:06:28,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:28,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 03:06:28,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:28,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 03:06:28,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:06:28,534 INFO L87 Difference]: Start difference. First operand 936 states and 1325 transitions. Second operand has 19 states, 15 states have (on average 4.2) internal successors, (63), 19 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-28 03:06:31,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:31,296 INFO L93 Difference]: Finished difference Result 2117 states and 2980 transitions. [2024-11-28 03:06:31,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 03:06:31,297 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 4.2) internal successors, (63), 19 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 155 [2024-11-28 03:06:31,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:31,304 INFO L225 Difference]: With dead ends: 2117 [2024-11-28 03:06:31,304 INFO L226 Difference]: Without dead ends: 1184 [2024-11-28 03:06:31,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=259, Invalid=1301, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 03:06:31,310 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 1133 mSDsluCounter, 2723 mSDsCounter, 0 mSdLazyCounter, 2196 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 2973 SdHoareTripleChecker+Invalid, 2411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:31,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 2973 Invalid, 2411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2196 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:06:31,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2024-11-28 03:06:31,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 979. [2024-11-28 03:06:31,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 832 states have (on average 1.3485576923076923) internal successors, (1122), 839 states have internal predecessors, (1122), 129 states have call successors, (129), 17 states have call predecessors, (129), 17 states have return successors, (129), 122 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-28 03:06:31,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1380 transitions. [2024-11-28 03:06:31,451 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1380 transitions. Word has length 155 [2024-11-28 03:06:31,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:31,453 INFO L471 AbstractCegarLoop]: Abstraction has 979 states and 1380 transitions. [2024-11-28 03:06:31,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 4.2) internal successors, (63), 19 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-28 03:06:31,454 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1380 transitions. [2024-11-28 03:06:31,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:31,456 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:31,456 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:31,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:06:31,456 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:31,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:31,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1412848974, now seen corresponding path program 1 times [2024-11-28 03:06:31,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:31,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385167432] [2024-11-28 03:06:31,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:31,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:33,650 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:33,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:33,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385167432] [2024-11-28 03:06:33,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385167432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:33,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:33,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-28 03:06:33,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812147315] [2024-11-28 03:06:33,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:33,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 03:06:33,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:33,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 03:06:33,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:06:33,653 INFO L87 Difference]: Start difference. First operand 979 states and 1380 transitions. Second operand has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 03:06:37,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:37,051 INFO L93 Difference]: Finished difference Result 2283 states and 3208 transitions. [2024-11-28 03:06:37,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 03:06:37,053 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-28 03:06:37,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:37,059 INFO L225 Difference]: With dead ends: 2283 [2024-11-28 03:06:37,060 INFO L226 Difference]: Without dead ends: 1347 [2024-11-28 03:06:37,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=324, Invalid=1932, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 03:06:37,063 INFO L435 NwaCegarLoop]: 323 mSDtfsCounter, 676 mSDsluCounter, 4404 mSDsCounter, 0 mSdLazyCounter, 2960 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 4727 SdHoareTripleChecker+Invalid, 3121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 2960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:37,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 4727 Invalid, 3121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 2960 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 03:06:37,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2024-11-28 03:06:37,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1065. [2024-11-28 03:06:37,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 918 states have (on average 1.3540305010893245) internal successors, (1243), 925 states have internal predecessors, (1243), 129 states have call successors, (129), 17 states have call predecessors, (129), 17 states have return successors, (129), 122 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-28 03:06:37,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1501 transitions. [2024-11-28 03:06:37,205 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1501 transitions. Word has length 155 [2024-11-28 03:06:37,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:37,205 INFO L471 AbstractCegarLoop]: Abstraction has 1065 states and 1501 transitions. [2024-11-28 03:06:37,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 03:06:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1501 transitions. [2024-11-28 03:06:37,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:37,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:37,208 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:37,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:06:37,208 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:37,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:37,209 INFO L85 PathProgramCache]: Analyzing trace with hash 826042960, now seen corresponding path program 1 times [2024-11-28 03:06:37,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:37,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405753424] [2024-11-28 03:06:37,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:37,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:37,527 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:37,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:37,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405753424] [2024-11-28 03:06:37,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405753424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:37,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:37,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:06:37,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472246943] [2024-11-28 03:06:37,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:37,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:06:37,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:37,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:06:37,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:06:37,529 INFO L87 Difference]: Start difference. First operand 1065 states and 1501 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:06:38,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:38,095 INFO L93 Difference]: Finished difference Result 2343 states and 3298 transitions. [2024-11-28 03:06:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:06:38,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-28 03:06:38,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:38,102 INFO L225 Difference]: With dead ends: 2343 [2024-11-28 03:06:38,103 INFO L226 Difference]: Without dead ends: 1281 [2024-11-28 03:06:38,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:38,105 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 100 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:38,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 569 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:06:38,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2024-11-28 03:06:38,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1065. [2024-11-28 03:06:38,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 918 states have (on average 1.3496732026143792) internal successors, (1239), 925 states have internal predecessors, (1239), 129 states have call successors, (129), 17 states have call predecessors, (129), 17 states have return successors, (129), 122 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-28 03:06:38,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1497 transitions. [2024-11-28 03:06:38,251 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1497 transitions. Word has length 155 [2024-11-28 03:06:38,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:38,251 INFO L471 AbstractCegarLoop]: Abstraction has 1065 states and 1497 transitions. [2024-11-28 03:06:38,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:06:38,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1497 transitions. [2024-11-28 03:06:38,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:38,253 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:38,253 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:38,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:06:38,254 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:38,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:38,255 INFO L85 PathProgramCache]: Analyzing trace with hash 903375884, now seen corresponding path program 1 times [2024-11-28 03:06:38,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:38,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971288145] [2024-11-28 03:06:38,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:38,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:38,922 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:38,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:38,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971288145] [2024-11-28 03:06:38,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971288145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:38,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:38,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:06:38,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325887342] [2024-11-28 03:06:38,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:38,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:38,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:38,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:38,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:38,925 INFO L87 Difference]: Start difference. First operand 1065 states and 1497 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:06:39,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:39,386 INFO L93 Difference]: Finished difference Result 2109 states and 2962 transitions. [2024-11-28 03:06:39,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:06:39,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-11-28 03:06:39,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:39,400 INFO L225 Difference]: With dead ends: 2109 [2024-11-28 03:06:39,400 INFO L226 Difference]: Without dead ends: 1047 [2024-11-28 03:06:39,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:39,402 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 131 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:39,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 684 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:06:39,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2024-11-28 03:06:39,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1044. [2024-11-28 03:06:39,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 897 states have (on average 1.3444816053511706) internal successors, (1206), 904 states have internal predecessors, (1206), 129 states have call successors, (129), 17 states have call predecessors, (129), 17 states have return successors, (129), 122 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-28 03:06:39,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1464 transitions. [2024-11-28 03:06:39,549 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1464 transitions. Word has length 155 [2024-11-28 03:06:39,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:39,549 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1464 transitions. [2024-11-28 03:06:39,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:06:39,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1464 transitions. [2024-11-28 03:06:39,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:39,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:39,551 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:39,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:06:39,551 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:39,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:39,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1867503378, now seen corresponding path program 1 times [2024-11-28 03:06:39,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:39,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486726448] [2024-11-28 03:06:39,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:39,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:40,440 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:40,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:40,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486726448] [2024-11-28 03:06:40,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486726448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:40,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:40,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:06:40,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153291430] [2024-11-28 03:06:40,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:40,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:06:40,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:40,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:06:40,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:06:40,442 INFO L87 Difference]: Start difference. First operand 1044 states and 1464 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:06:40,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:40,846 INFO L93 Difference]: Finished difference Result 1868 states and 2637 transitions. [2024-11-28 03:06:40,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:06:40,847 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-11-28 03:06:40,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:40,856 INFO L225 Difference]: With dead ends: 1868 [2024-11-28 03:06:40,856 INFO L226 Difference]: Without dead ends: 1441 [2024-11-28 03:06:40,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:06:40,858 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 124 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:40,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1205 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:06:40,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2024-11-28 03:06:41,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1426. [2024-11-28 03:06:41,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1224 states have (on average 1.3513071895424837) internal successors, (1654), 1235 states have internal predecessors, (1654), 179 states have call successors, (179), 22 states have call predecessors, (179), 22 states have return successors, (179), 168 states have call predecessors, (179), 179 states have call successors, (179) [2024-11-28 03:06:41,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2012 transitions. [2024-11-28 03:06:41,019 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2012 transitions. Word has length 155 [2024-11-28 03:06:41,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:41,019 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2012 transitions. [2024-11-28 03:06:41,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:06:41,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2012 transitions. [2024-11-28 03:06:41,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:41,023 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:41,023 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:41,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:06:41,024 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:41,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:41,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1805463764, now seen corresponding path program 1 times [2024-11-28 03:06:41,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:41,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434181342] [2024-11-28 03:06:41,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:41,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:42,209 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:42,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:42,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434181342] [2024-11-28 03:06:42,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434181342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:42,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:42,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:06:42,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506930826] [2024-11-28 03:06:42,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:42,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:06:42,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:42,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:06:42,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:06:42,211 INFO L87 Difference]: Start difference. First operand 1426 states and 2012 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:06:44,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:44,138 INFO L93 Difference]: Finished difference Result 3088 states and 4343 transitions. [2024-11-28 03:06:44,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:06:44,138 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-28 03:06:44,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:44,146 INFO L225 Difference]: With dead ends: 3088 [2024-11-28 03:06:44,146 INFO L226 Difference]: Without dead ends: 1665 [2024-11-28 03:06:44,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:06:44,151 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 958 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:44,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 2492 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:06:44,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2024-11-28 03:06:44,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1493. [2024-11-28 03:06:44,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1278 states have (on average 1.3482003129890454) internal successors, (1723), 1290 states have internal predecessors, (1723), 190 states have call successors, (190), 24 states have call predecessors, (190), 24 states have return successors, (190), 178 states have call predecessors, (190), 190 states have call successors, (190) [2024-11-28 03:06:44,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2103 transitions. [2024-11-28 03:06:44,370 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2103 transitions. Word has length 155 [2024-11-28 03:06:44,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:44,371 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 2103 transitions. [2024-11-28 03:06:44,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:06:44,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2103 transitions. [2024-11-28 03:06:44,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:44,373 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:44,373 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:44,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:06:44,373 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:44,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:44,374 INFO L85 PathProgramCache]: Analyzing trace with hash 926008138, now seen corresponding path program 1 times [2024-11-28 03:06:44,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:44,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188393005] [2024-11-28 03:06:44,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:44,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:45,215 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:45,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:45,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188393005] [2024-11-28 03:06:45,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188393005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:45,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:45,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:06:45,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155073054] [2024-11-28 03:06:45,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:45,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:06:45,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:45,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:06:45,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:45,216 INFO L87 Difference]: Start difference. First operand 1493 states and 2103 transitions. Second operand has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:45,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:45,673 INFO L93 Difference]: Finished difference Result 2978 states and 4195 transitions. [2024-11-28 03:06:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:06:45,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-28 03:06:45,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:45,680 INFO L225 Difference]: With dead ends: 2978 [2024-11-28 03:06:45,680 INFO L226 Difference]: Without dead ends: 1488 [2024-11-28 03:06:45,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:06:45,683 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 119 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:45,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 1287 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:06:45,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2024-11-28 03:06:45,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1483. [2024-11-28 03:06:45,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1268 states have (on average 1.3446372239747635) internal successors, (1705), 1280 states have internal predecessors, (1705), 190 states have call successors, (190), 24 states have call predecessors, (190), 24 states have return successors, (190), 178 states have call predecessors, (190), 190 states have call successors, (190) [2024-11-28 03:06:45,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2085 transitions. [2024-11-28 03:06:45,918 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2085 transitions. Word has length 155 [2024-11-28 03:06:45,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:45,918 INFO L471 AbstractCegarLoop]: Abstraction has 1483 states and 2085 transitions. [2024-11-28 03:06:45,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:45,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2085 transitions. [2024-11-28 03:06:45,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:45,921 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:45,921 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:45,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:06:45,921 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:45,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:45,922 INFO L85 PathProgramCache]: Analyzing trace with hash -940661554, now seen corresponding path program 1 times [2024-11-28 03:06:45,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:45,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772051813] [2024-11-28 03:06:45,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:45,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:47,048 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:47,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:47,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772051813] [2024-11-28 03:06:47,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772051813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:47,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:47,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:06:47,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365724563] [2024-11-28 03:06:47,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:47,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:06:47,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:47,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:06:47,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:06:47,050 INFO L87 Difference]: Start difference. First operand 1483 states and 2085 transitions. Second operand has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:48,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:48,025 INFO L93 Difference]: Finished difference Result 3008 states and 4220 transitions. [2024-11-28 03:06:48,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:06:48,026 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-28 03:06:48,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:48,034 INFO L225 Difference]: With dead ends: 3008 [2024-11-28 03:06:48,034 INFO L226 Difference]: Without dead ends: 1528 [2024-11-28 03:06:48,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:06:48,038 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 125 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 3095 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:48,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 3095 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:06:48,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2024-11-28 03:06:48,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1368. [2024-11-28 03:06:48,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1170 states have (on average 1.3435897435897435) internal successors, (1572), 1180 states have internal predecessors, (1572), 174 states have call successors, (174), 23 states have call predecessors, (174), 23 states have return successors, (174), 164 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-28 03:06:48,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1920 transitions. [2024-11-28 03:06:48,233 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1920 transitions. Word has length 155 [2024-11-28 03:06:48,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:48,234 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 1920 transitions. [2024-11-28 03:06:48,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:48,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1920 transitions. [2024-11-28 03:06:48,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:48,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:48,236 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:48,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:06:48,237 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:48,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:48,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1869854258, now seen corresponding path program 1 times [2024-11-28 03:06:48,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:48,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545012583] [2024-11-28 03:06:48,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:48,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:49,432 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:49,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:49,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545012583] [2024-11-28 03:06:49,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545012583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:49,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:49,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:06:49,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126277887] [2024-11-28 03:06:49,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:49,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:06:49,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:49,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:06:49,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:06:49,436 INFO L87 Difference]: Start difference. First operand 1368 states and 1920 transitions. Second operand has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:50,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:50,380 INFO L93 Difference]: Finished difference Result 3028 states and 4255 transitions. [2024-11-28 03:06:50,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:06:50,381 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-28 03:06:50,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:50,390 INFO L225 Difference]: With dead ends: 3028 [2024-11-28 03:06:50,391 INFO L226 Difference]: Without dead ends: 1663 [2024-11-28 03:06:50,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:06:50,394 INFO L435 NwaCegarLoop]: 255 mSDtfsCounter, 123 mSDsluCounter, 2415 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:50,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 2670 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:06:50,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2024-11-28 03:06:50,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1653. [2024-11-28 03:06:50,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1419 states have (on average 1.3474277660324172) internal successors, (1912), 1432 states have internal predecessors, (1912), 207 states have call successors, (207), 26 states have call predecessors, (207), 26 states have return successors, (207), 194 states have call predecessors, (207), 207 states have call successors, (207) [2024-11-28 03:06:50,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2326 transitions. [2024-11-28 03:06:50,555 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2326 transitions. Word has length 155 [2024-11-28 03:06:50,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:50,555 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2326 transitions. [2024-11-28 03:06:50,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:50,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2326 transitions. [2024-11-28 03:06:50,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:50,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:50,557 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:50,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 03:06:50,558 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:50,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:50,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1611688820, now seen corresponding path program 1 times [2024-11-28 03:06:50,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:50,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22095147] [2024-11-28 03:06:50,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:50,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:51,525 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:51,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:51,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22095147] [2024-11-28 03:06:51,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22095147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:51,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:51,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:06:51,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496297831] [2024-11-28 03:06:51,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:51,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:06:51,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:51,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:06:51,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:51,526 INFO L87 Difference]: Start difference. First operand 1653 states and 2326 transitions. Second operand has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:51,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:51,975 INFO L93 Difference]: Finished difference Result 3574 states and 5035 transitions. [2024-11-28 03:06:51,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:06:51,976 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-28 03:06:51,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:51,984 INFO L225 Difference]: With dead ends: 3574 [2024-11-28 03:06:51,985 INFO L226 Difference]: Without dead ends: 1924 [2024-11-28 03:06:51,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:06:51,988 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 109 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:51,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1246 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:06:51,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2024-11-28 03:06:52,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1713. [2024-11-28 03:06:52,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1479 states have (on average 1.3509127789046653) internal successors, (1998), 1492 states have internal predecessors, (1998), 207 states have call successors, (207), 26 states have call predecessors, (207), 26 states have return successors, (207), 194 states have call predecessors, (207), 207 states have call successors, (207) [2024-11-28 03:06:52,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2412 transitions. [2024-11-28 03:06:52,188 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2412 transitions. Word has length 155 [2024-11-28 03:06:52,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:52,188 INFO L471 AbstractCegarLoop]: Abstraction has 1713 states and 2412 transitions. [2024-11-28 03:06:52,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:52,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2412 transitions. [2024-11-28 03:06:52,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:52,190 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:52,190 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:52,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:06:52,190 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:52,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:52,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1413995788, now seen corresponding path program 1 times [2024-11-28 03:06:52,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:52,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898955921] [2024-11-28 03:06:52,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:52,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:52,773 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:52,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:52,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898955921] [2024-11-28 03:06:52,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898955921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:52,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:52,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:06:52,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253631461] [2024-11-28 03:06:52,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:52,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:06:52,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:52,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:06:52,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:06:52,775 INFO L87 Difference]: Start difference. First operand 1713 states and 2412 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:06:53,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:53,141 INFO L93 Difference]: Finished difference Result 3864 states and 5443 transitions. [2024-11-28 03:06:53,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:06:53,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-11-28 03:06:53,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:53,150 INFO L225 Difference]: With dead ends: 3864 [2024-11-28 03:06:53,151 INFO L226 Difference]: Without dead ends: 2154 [2024-11-28 03:06:53,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:53,157 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 106 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:53,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1015 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:06:53,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2024-11-28 03:06:53,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 2146. [2024-11-28 03:06:53,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2146 states, 1852 states have (on average 1.349352051835853) internal successors, (2499), 1871 states have internal predecessors, (2499), 261 states have call successors, (261), 32 states have call predecessors, (261), 32 states have return successors, (261), 242 states have call predecessors, (261), 261 states have call successors, (261) [2024-11-28 03:06:53,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2146 states to 2146 states and 3021 transitions. [2024-11-28 03:06:53,386 INFO L78 Accepts]: Start accepts. Automaton has 2146 states and 3021 transitions. Word has length 155 [2024-11-28 03:06:53,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:53,387 INFO L471 AbstractCegarLoop]: Abstraction has 2146 states and 3021 transitions. [2024-11-28 03:06:53,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:06:53,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2146 states and 3021 transitions. [2024-11-28 03:06:53,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:53,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:53,389 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:53,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 03:06:53,389 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:53,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:53,390 INFO L85 PathProgramCache]: Analyzing trace with hash 53373776, now seen corresponding path program 1 times [2024-11-28 03:06:53,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:53,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103526417] [2024-11-28 03:06:53,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:53,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:54,199 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:54,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:54,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103526417] [2024-11-28 03:06:54,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103526417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:54,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:54,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:06:54,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268538342] [2024-11-28 03:06:54,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:54,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:06:54,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:54,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:06:54,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:54,201 INFO L87 Difference]: Start difference. First operand 2146 states and 3021 transitions. Second operand has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:54,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:54,731 INFO L93 Difference]: Finished difference Result 4343 states and 6101 transitions. [2024-11-28 03:06:54,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:06:54,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-28 03:06:54,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:54,739 INFO L225 Difference]: With dead ends: 4343 [2024-11-28 03:06:54,739 INFO L226 Difference]: Without dead ends: 2200 [2024-11-28 03:06:54,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:06:54,742 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 111 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:54,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1049 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:06:54,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2024-11-28 03:06:54,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 1815. [2024-11-28 03:06:54,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1571 states have (on average 1.3469127943984722) internal successors, (2116), 1585 states have internal predecessors, (2116), 212 states have call successors, (212), 31 states have call predecessors, (212), 31 states have return successors, (212), 198 states have call predecessors, (212), 212 states have call successors, (212) [2024-11-28 03:06:54,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2540 transitions. [2024-11-28 03:06:54,907 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2540 transitions. Word has length 155 [2024-11-28 03:06:54,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:54,907 INFO L471 AbstractCegarLoop]: Abstraction has 1815 states and 2540 transitions. [2024-11-28 03:06:54,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:54,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2540 transitions. [2024-11-28 03:06:54,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:54,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:54,909 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:54,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 03:06:54,910 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:54,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:54,910 INFO L85 PathProgramCache]: Analyzing trace with hash 311539214, now seen corresponding path program 1 times [2024-11-28 03:06:54,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:54,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523450238] [2024-11-28 03:06:54,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:54,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:56,310 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:56,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:56,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523450238] [2024-11-28 03:06:56,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523450238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:56,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:56,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 03:06:56,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241918771] [2024-11-28 03:06:56,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:56,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:06:56,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:56,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:06:56,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:06:56,312 INFO L87 Difference]: Start difference. First operand 1815 states and 2540 transitions. Second operand has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:57,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:57,509 INFO L93 Difference]: Finished difference Result 3823 states and 5338 transitions. [2024-11-28 03:06:57,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:06:57,509 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-28 03:06:57,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:57,517 INFO L225 Difference]: With dead ends: 3823 [2024-11-28 03:06:57,517 INFO L226 Difference]: Without dead ends: 2047 [2024-11-28 03:06:57,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:06:57,521 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 117 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:57,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 3027 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:06:57,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2024-11-28 03:06:57,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1980. [2024-11-28 03:06:57,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1980 states, 1704 states have (on average 1.34037558685446) internal successors, (2284), 1720 states have internal predecessors, (2284), 238 states have call successors, (238), 37 states have call predecessors, (238), 37 states have return successors, (238), 222 states have call predecessors, (238), 238 states have call successors, (238) [2024-11-28 03:06:57,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2760 transitions. [2024-11-28 03:06:57,714 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2760 transitions. Word has length 155 [2024-11-28 03:06:57,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:57,714 INFO L471 AbstractCegarLoop]: Abstraction has 1980 states and 2760 transitions. [2024-11-28 03:06:57,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:57,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2760 transitions. [2024-11-28 03:06:57,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:57,716 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:57,716 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:57,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 03:06:57,716 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:57,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:57,716 INFO L85 PathProgramCache]: Analyzing trace with hash -483650864, now seen corresponding path program 1 times [2024-11-28 03:06:57,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:57,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556045597] [2024-11-28 03:06:57,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:57,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:58,361 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:06:58,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:58,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556045597] [2024-11-28 03:06:58,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556045597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:58,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:58,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:06:58,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130288936] [2024-11-28 03:06:58,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:58,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:06:58,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:58,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:06:58,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:58,363 INFO L87 Difference]: Start difference. First operand 1980 states and 2760 transitions. Second operand has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:58,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:58,837 INFO L93 Difference]: Finished difference Result 3938 states and 5482 transitions. [2024-11-28 03:06:58,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:06:58,837 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-28 03:06:58,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:58,842 INFO L225 Difference]: With dead ends: 3938 [2024-11-28 03:06:58,842 INFO L226 Difference]: Without dead ends: 1997 [2024-11-28 03:06:58,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:06:58,845 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 108 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:58,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1067 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:06:58,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2024-11-28 03:06:59,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1813. [2024-11-28 03:06:59,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1564 states have (on average 1.3363171355498722) internal successors, (2090), 1577 states have internal predecessors, (2090), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-28 03:06:59,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2512 transitions. [2024-11-28 03:06:59,050 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2512 transitions. Word has length 155 [2024-11-28 03:06:59,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:59,051 INFO L471 AbstractCegarLoop]: Abstraction has 1813 states and 2512 transitions. [2024-11-28 03:06:59,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:06:59,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2512 transitions. [2024-11-28 03:06:59,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:06:59,052 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:59,052 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:59,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 03:06:59,052 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:06:59,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:59,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1494768114, now seen corresponding path program 1 times [2024-11-28 03:06:59,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:06:59,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000316024] [2024-11-28 03:06:59,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:59,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:00,740 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:00,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:00,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000316024] [2024-11-28 03:07:00,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000316024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:00,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:00,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 03:07:00,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786730465] [2024-11-28 03:07:00,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:00,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:07:00,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:00,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:07:00,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:07:00,742 INFO L87 Difference]: Start difference. First operand 1813 states and 2512 transitions. Second operand has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 03:07:03,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:03,147 INFO L93 Difference]: Finished difference Result 3000 states and 4164 transitions. [2024-11-28 03:07:03,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:07:03,148 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-28 03:07:03,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:03,154 INFO L225 Difference]: With dead ends: 3000 [2024-11-28 03:07:03,154 INFO L226 Difference]: Without dead ends: 2008 [2024-11-28 03:07:03,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:07:03,156 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 245 mSDsluCounter, 3654 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 3978 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:03,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 3978 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:07:03,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2024-11-28 03:07:03,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1811. [2024-11-28 03:07:03,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1562 states have (on average 1.3367477592829706) internal successors, (2088), 1575 states have internal predecessors, (2088), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-28 03:07:03,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2510 transitions. [2024-11-28 03:07:03,361 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2510 transitions. Word has length 155 [2024-11-28 03:07:03,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:03,361 INFO L471 AbstractCegarLoop]: Abstraction has 1811 states and 2510 transitions. [2024-11-28 03:07:03,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 03:07:03,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2510 transitions. [2024-11-28 03:07:03,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:07:03,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:03,363 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:03,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-28 03:07:03,363 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:03,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:03,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1628781620, now seen corresponding path program 1 times [2024-11-28 03:07:03,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:03,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317296829] [2024-11-28 03:07:03,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:03,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:04,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:04,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317296829] [2024-11-28 03:07:04,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317296829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:04,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:04,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:07:04,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998434062] [2024-11-28 03:07:04,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:04,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:07:04,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:04,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:07:04,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:07:04,570 INFO L87 Difference]: Start difference. First operand 1811 states and 2510 transitions. Second operand has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:05,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:05,433 INFO L93 Difference]: Finished difference Result 3778 states and 5237 transitions. [2024-11-28 03:07:05,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:07:05,434 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-11-28 03:07:05,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:05,442 INFO L225 Difference]: With dead ends: 3778 [2024-11-28 03:07:05,442 INFO L226 Difference]: Without dead ends: 2006 [2024-11-28 03:07:05,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:07:05,446 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 108 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 2285 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:05,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 2285 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:07:05,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2024-11-28 03:07:05,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1807. [2024-11-28 03:07:05,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1558 states have (on average 1.337612323491656) internal successors, (2084), 1571 states have internal predecessors, (2084), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-28 03:07:05,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2506 transitions. [2024-11-28 03:07:05,722 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2506 transitions. Word has length 155 [2024-11-28 03:07:05,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:05,723 INFO L471 AbstractCegarLoop]: Abstraction has 1807 states and 2506 transitions. [2024-11-28 03:07:05,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:05,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2506 transitions. [2024-11-28 03:07:05,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:07:05,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:05,725 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:05,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-28 03:07:05,725 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:05,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:05,726 INFO L85 PathProgramCache]: Analyzing trace with hash 686625358, now seen corresponding path program 1 times [2024-11-28 03:07:05,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:05,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657319000] [2024-11-28 03:07:05,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:05,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:06,602 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:06,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:06,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657319000] [2024-11-28 03:07:06,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657319000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:06,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:06,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:07:06,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415665146] [2024-11-28 03:07:06,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:06,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:07:06,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:06,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:07:06,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:07:06,604 INFO L87 Difference]: Start difference. First operand 1807 states and 2506 transitions. Second operand has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:07,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:07,491 INFO L93 Difference]: Finished difference Result 3759 states and 5216 transitions. [2024-11-28 03:07:07,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:07:07,491 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-11-28 03:07:07,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:07,499 INFO L225 Difference]: With dead ends: 3759 [2024-11-28 03:07:07,499 INFO L226 Difference]: Without dead ends: 1991 [2024-11-28 03:07:07,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:07:07,503 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 109 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:07,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2625 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:07:07,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2024-11-28 03:07:07,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1798. [2024-11-28 03:07:07,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1549 states have (on average 1.3376371852808264) internal successors, (2072), 1562 states have internal predecessors, (2072), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-28 03:07:07,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2494 transitions. [2024-11-28 03:07:07,889 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2494 transitions. Word has length 155 [2024-11-28 03:07:07,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:07,889 INFO L471 AbstractCegarLoop]: Abstraction has 1798 states and 2494 transitions. [2024-11-28 03:07:07,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:07,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2494 transitions. [2024-11-28 03:07:07,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 03:07:07,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:07,892 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:07,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-28 03:07:07,893 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:07,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:07,893 INFO L85 PathProgramCache]: Analyzing trace with hash -612042519, now seen corresponding path program 1 times [2024-11-28 03:07:07,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:07,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034531157] [2024-11-28 03:07:07,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:07,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:07,993 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:07,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:07,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034531157] [2024-11-28 03:07:07,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034531157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:07,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:07,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:07:07,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824268355] [2024-11-28 03:07:07,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:07,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:07,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:07,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:07,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:07,995 INFO L87 Difference]: Start difference. First operand 1798 states and 2494 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:08,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:08,289 INFO L93 Difference]: Finished difference Result 3572 states and 4967 transitions. [2024-11-28 03:07:08,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:08,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2024-11-28 03:07:08,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:08,296 INFO L225 Difference]: With dead ends: 3572 [2024-11-28 03:07:08,296 INFO L226 Difference]: Without dead ends: 1813 [2024-11-28 03:07:08,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:08,299 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:08,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:07:08,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2024-11-28 03:07:08,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1813. [2024-11-28 03:07:08,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1564 states have (on average 1.3343989769820972) internal successors, (2087), 1577 states have internal predecessors, (2087), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-28 03:07:08,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2509 transitions. [2024-11-28 03:07:08,566 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2509 transitions. Word has length 156 [2024-11-28 03:07:08,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:08,567 INFO L471 AbstractCegarLoop]: Abstraction has 1813 states and 2509 transitions. [2024-11-28 03:07:08,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:08,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2509 transitions. [2024-11-28 03:07:08,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 03:07:08,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:08,569 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:08,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-28 03:07:08,569 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:08,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:08,570 INFO L85 PathProgramCache]: Analyzing trace with hash -353877081, now seen corresponding path program 1 times [2024-11-28 03:07:08,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:08,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728308564] [2024-11-28 03:07:08,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:08,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:08,759 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-28 03:07:08,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:08,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728308564] [2024-11-28 03:07:08,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728308564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:08,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937488586] [2024-11-28 03:07:08,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:08,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:08,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:08,762 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:08,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:07:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:09,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:07:09,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:09,162 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:09,162 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:09,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937488586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:09,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:07:09,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-11-28 03:07:09,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600166424] [2024-11-28 03:07:09,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:09,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:09,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:09,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:09,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:07:09,163 INFO L87 Difference]: Start difference. First operand 1813 states and 2509 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:09,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:09,448 INFO L93 Difference]: Finished difference Result 3647 states and 5042 transitions. [2024-11-28 03:07:09,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:09,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2024-11-28 03:07:09,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:09,457 INFO L225 Difference]: With dead ends: 3647 [2024-11-28 03:07:09,457 INFO L226 Difference]: Without dead ends: 1873 [2024-11-28 03:07:09,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:07:09,461 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:09,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 859 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:07:09,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1873 states. [2024-11-28 03:07:09,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 1828. [2024-11-28 03:07:09,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1828 states, 1579 states have (on average 1.331222292590247) internal successors, (2102), 1592 states have internal predecessors, (2102), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-28 03:07:09,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2524 transitions. [2024-11-28 03:07:09,693 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2524 transitions. Word has length 156 [2024-11-28 03:07:09,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:09,694 INFO L471 AbstractCegarLoop]: Abstraction has 1828 states and 2524 transitions. [2024-11-28 03:07:09,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:09,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2524 transitions. [2024-11-28 03:07:09,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 03:07:09,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:09,695 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:09,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:07:09,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 03:07:09,895 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:09,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:09,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1927855748, now seen corresponding path program 1 times [2024-11-28 03:07:09,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:09,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521872565] [2024-11-28 03:07:09,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:09,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:10,137 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:10,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:10,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521872565] [2024-11-28 03:07:10,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521872565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:10,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:10,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:07:10,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344363155] [2024-11-28 03:07:10,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:10,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:07:10,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:10,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:07:10,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:07:10,139 INFO L87 Difference]: Start difference. First operand 1828 states and 2524 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:10,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:10,602 INFO L93 Difference]: Finished difference Result 5161 states and 7083 transitions. [2024-11-28 03:07:10,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:07:10,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2024-11-28 03:07:10,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:10,613 INFO L225 Difference]: With dead ends: 5161 [2024-11-28 03:07:10,613 INFO L226 Difference]: Without dead ends: 3372 [2024-11-28 03:07:10,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:10,617 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 149 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:10,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 567 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:07:10,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2024-11-28 03:07:10,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 2103. [2024-11-28 03:07:10,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2103 states, 1854 states have (on average 1.2955771305285868) internal successors, (2402), 1867 states have internal predecessors, (2402), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-28 03:07:10,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2103 states to 2103 states and 2824 transitions. [2024-11-28 03:07:10,934 INFO L78 Accepts]: Start accepts. Automaton has 2103 states and 2824 transitions. Word has length 158 [2024-11-28 03:07:10,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:10,934 INFO L471 AbstractCegarLoop]: Abstraction has 2103 states and 2824 transitions. [2024-11-28 03:07:10,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:10,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2103 states and 2824 transitions. [2024-11-28 03:07:10,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 03:07:10,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:10,937 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:10,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-28 03:07:10,937 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:10,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:10,938 INFO L85 PathProgramCache]: Analyzing trace with hash -743455959, now seen corresponding path program 1 times [2024-11-28 03:07:10,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:10,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729860522] [2024-11-28 03:07:10,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:10,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:11,016 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:11,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:11,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729860522] [2024-11-28 03:07:11,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729860522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:11,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:11,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:07:11,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213790651] [2024-11-28 03:07:11,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:11,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:11,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:11,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:11,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:11,019 INFO L87 Difference]: Start difference. First operand 2103 states and 2824 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:11,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:11,307 INFO L93 Difference]: Finished difference Result 4181 states and 5625 transitions. [2024-11-28 03:07:11,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:11,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2024-11-28 03:07:11,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:11,315 INFO L225 Difference]: With dead ends: 4181 [2024-11-28 03:07:11,315 INFO L226 Difference]: Without dead ends: 2117 [2024-11-28 03:07:11,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:11,322 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:11,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:07:11,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2024-11-28 03:07:11,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 2117. [2024-11-28 03:07:11,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1868 states have (on average 1.2933618843683083) internal successors, (2416), 1881 states have internal predecessors, (2416), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-28 03:07:11,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2838 transitions. [2024-11-28 03:07:11,617 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2838 transitions. Word has length 158 [2024-11-28 03:07:11,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:11,618 INFO L471 AbstractCegarLoop]: Abstraction has 2117 states and 2838 transitions. [2024-11-28 03:07:11,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:11,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2838 transitions. [2024-11-28 03:07:11,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 03:07:11,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:11,620 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:11,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-28 03:07:11,620 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:11,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:11,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1031551403, now seen corresponding path program 1 times [2024-11-28 03:07:11,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:11,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711765610] [2024-11-28 03:07:11,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:11,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:12,225 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:12,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:12,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711765610] [2024-11-28 03:07:12,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711765610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:12,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:12,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:07:12,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459669622] [2024-11-28 03:07:12,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:12,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:07:12,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:12,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:07:12,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:07:12,227 INFO L87 Difference]: Start difference. First operand 2117 states and 2838 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:12,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:12,632 INFO L93 Difference]: Finished difference Result 3521 states and 4628 transitions. [2024-11-28 03:07:12,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:07:12,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2024-11-28 03:07:12,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:12,639 INFO L225 Difference]: With dead ends: 3521 [2024-11-28 03:07:12,639 INFO L226 Difference]: Without dead ends: 3519 [2024-11-28 03:07:12,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:07:12,640 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 73 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:12,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1072 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:07:12,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3519 states. [2024-11-28 03:07:13,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3519 to 3503. [2024-11-28 03:07:13,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3503 states, 3183 states have (on average 1.2767829092051524) internal successors, (4064), 3210 states have internal predecessors, (4064), 267 states have call successors, (267), 52 states have call predecessors, (267), 52 states have return successors, (267), 240 states have call predecessors, (267), 267 states have call successors, (267) [2024-11-28 03:07:13,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3503 states to 3503 states and 4598 transitions. [2024-11-28 03:07:13,070 INFO L78 Accepts]: Start accepts. Automaton has 3503 states and 4598 transitions. Word has length 158 [2024-11-28 03:07:13,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:13,071 INFO L471 AbstractCegarLoop]: Abstraction has 3503 states and 4598 transitions. [2024-11-28 03:07:13,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:13,074 INFO L276 IsEmpty]: Start isEmpty. Operand 3503 states and 4598 transitions. [2024-11-28 03:07:13,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 03:07:13,076 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:13,076 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:13,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-28 03:07:13,077 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:13,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:13,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1807863380, now seen corresponding path program 1 times [2024-11-28 03:07:13,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:13,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347636510] [2024-11-28 03:07:13,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:13,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:14,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:14,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347636510] [2024-11-28 03:07:14,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347636510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:14,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:14,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:07:14,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686458275] [2024-11-28 03:07:14,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:14,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:07:14,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:14,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:07:14,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:07:14,099 INFO L87 Difference]: Start difference. First operand 3503 states and 4598 transitions. Second operand has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:14,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:14,865 INFO L93 Difference]: Finished difference Result 7112 states and 9332 transitions. [2024-11-28 03:07:14,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:07:14,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 159 [2024-11-28 03:07:14,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:14,874 INFO L225 Difference]: With dead ends: 7112 [2024-11-28 03:07:14,874 INFO L226 Difference]: Without dead ends: 3652 [2024-11-28 03:07:14,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:07:14,880 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 263 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:14,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1286 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:07:14,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2024-11-28 03:07:15,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3006. [2024-11-28 03:07:15,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3006 states, 2751 states have (on average 1.2784442021083242) internal successors, (3517), 2772 states have internal predecessors, (3517), 212 states have call successors, (212), 42 states have call predecessors, (212), 42 states have return successors, (212), 191 states have call predecessors, (212), 212 states have call successors, (212) [2024-11-28 03:07:15,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 3941 transitions. [2024-11-28 03:07:15,247 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 3941 transitions. Word has length 159 [2024-11-28 03:07:15,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:15,248 INFO L471 AbstractCegarLoop]: Abstraction has 3006 states and 3941 transitions. [2024-11-28 03:07:15,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:15,248 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 3941 transitions. [2024-11-28 03:07:15,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:07:15,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:15,251 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:15,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-28 03:07:15,251 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:15,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:15,251 INFO L85 PathProgramCache]: Analyzing trace with hash 603257263, now seen corresponding path program 1 times [2024-11-28 03:07:15,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:15,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204897107] [2024-11-28 03:07:15,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:15,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:16,021 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:16,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:16,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204897107] [2024-11-28 03:07:16,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204897107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:16,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:16,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:16,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333527930] [2024-11-28 03:07:16,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:16,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:16,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:16,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:16,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:16,024 INFO L87 Difference]: Start difference. First operand 3006 states and 3941 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:16,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:16,392 INFO L93 Difference]: Finished difference Result 8087 states and 10568 transitions. [2024-11-28 03:07:16,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:07:16,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2024-11-28 03:07:16,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:16,399 INFO L225 Difference]: With dead ends: 8087 [2024-11-28 03:07:16,399 INFO L226 Difference]: Without dead ends: 5116 [2024-11-28 03:07:16,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:16,403 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 57 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:16,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 962 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:07:16,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5116 states. [2024-11-28 03:07:16,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5116 to 4806. [2024-11-28 03:07:16,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4806 states, 4551 states have (on average 1.2808174027686223) internal successors, (5829), 4572 states have internal predecessors, (5829), 212 states have call successors, (212), 42 states have call predecessors, (212), 42 states have return successors, (212), 191 states have call predecessors, (212), 212 states have call successors, (212) [2024-11-28 03:07:16,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 6253 transitions. [2024-11-28 03:07:16,668 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 6253 transitions. Word has length 160 [2024-11-28 03:07:16,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:16,668 INFO L471 AbstractCegarLoop]: Abstraction has 4806 states and 6253 transitions. [2024-11-28 03:07:16,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:16,668 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 6253 transitions. [2024-11-28 03:07:16,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:07:16,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:16,671 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:16,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-28 03:07:16,671 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:16,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:16,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1989460657, now seen corresponding path program 1 times [2024-11-28 03:07:16,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:16,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446598638] [2024-11-28 03:07:16,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:16,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:17,400 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:17,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:17,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446598638] [2024-11-28 03:07:17,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446598638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:17,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:17,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:17,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378482336] [2024-11-28 03:07:17,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:17,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:17,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:17,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:17,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:17,401 INFO L87 Difference]: Start difference. First operand 4806 states and 6253 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:17,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:17,921 INFO L93 Difference]: Finished difference Result 10918 states and 14147 transitions. [2024-11-28 03:07:17,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:07:17,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2024-11-28 03:07:17,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:17,933 INFO L225 Difference]: With dead ends: 10918 [2024-11-28 03:07:17,933 INFO L226 Difference]: Without dead ends: 6147 [2024-11-28 03:07:17,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:17,939 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 126 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:17,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 852 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:07:17,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6147 states. [2024-11-28 03:07:18,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6147 to 6101. [2024-11-28 03:07:18,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6101 states, 5780 states have (on average 1.273356401384083) internal successors, (7360), 5823 states have internal predecessors, (7360), 256 states have call successors, (256), 64 states have call predecessors, (256), 64 states have return successors, (256), 213 states have call predecessors, (256), 256 states have call successors, (256) [2024-11-28 03:07:18,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 7872 transitions. [2024-11-28 03:07:18,348 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 7872 transitions. Word has length 160 [2024-11-28 03:07:18,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:18,349 INFO L471 AbstractCegarLoop]: Abstraction has 6101 states and 7872 transitions. [2024-11-28 03:07:18,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:18,349 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 7872 transitions. [2024-11-28 03:07:18,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:07:18,353 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:18,354 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:18,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-28 03:07:18,354 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:18,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:18,354 INFO L85 PathProgramCache]: Analyzing trace with hash 459533258, now seen corresponding path program 1 times [2024-11-28 03:07:18,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:18,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198582459] [2024-11-28 03:07:18,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:18,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:18,410 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:18,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:18,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198582459] [2024-11-28 03:07:18,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198582459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:18,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:18,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:07:18,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909167186] [2024-11-28 03:07:18,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:18,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:18,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:18,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:18,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:18,411 INFO L87 Difference]: Start difference. First operand 6101 states and 7872 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:18,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:18,735 INFO L93 Difference]: Finished difference Result 12307 states and 15979 transitions. [2024-11-28 03:07:18,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:18,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-11-28 03:07:18,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:18,744 INFO L225 Difference]: With dead ends: 12307 [2024-11-28 03:07:18,744 INFO L226 Difference]: Without dead ends: 6241 [2024-11-28 03:07:18,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:18,749 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:18,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 352 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:07:18,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2024-11-28 03:07:19,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 6241. [2024-11-28 03:07:19,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6241 states, 5920 states have (on average 1.2668918918918919) internal successors, (7500), 5963 states have internal predecessors, (7500), 256 states have call successors, (256), 64 states have call predecessors, (256), 64 states have return successors, (256), 213 states have call predecessors, (256), 256 states have call successors, (256) [2024-11-28 03:07:19,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6241 states to 6241 states and 8012 transitions. [2024-11-28 03:07:19,098 INFO L78 Accepts]: Start accepts. Automaton has 6241 states and 8012 transitions. Word has length 160 [2024-11-28 03:07:19,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:19,098 INFO L471 AbstractCegarLoop]: Abstraction has 6241 states and 8012 transitions. [2024-11-28 03:07:19,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:19,099 INFO L276 IsEmpty]: Start isEmpty. Operand 6241 states and 8012 transitions. [2024-11-28 03:07:19,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:07:19,102 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:19,102 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:19,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-28 03:07:19,102 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:19,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:19,102 INFO L85 PathProgramCache]: Analyzing trace with hash 600081868, now seen corresponding path program 1 times [2024-11-28 03:07:19,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:19,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700247562] [2024-11-28 03:07:19,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:19,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:19,675 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:19,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:19,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700247562] [2024-11-28 03:07:19,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700247562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:19,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:19,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:19,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869313742] [2024-11-28 03:07:19,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:19,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:19,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:19,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:19,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:19,676 INFO L87 Difference]: Start difference. First operand 6241 states and 8012 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:20,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:20,270 INFO L93 Difference]: Finished difference Result 10200 states and 13129 transitions. [2024-11-28 03:07:20,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:20,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2024-11-28 03:07:20,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:20,279 INFO L225 Difference]: With dead ends: 10200 [2024-11-28 03:07:20,279 INFO L226 Difference]: Without dead ends: 6244 [2024-11-28 03:07:20,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:20,283 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 121 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:20,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 851 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:07:20,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6244 states. [2024-11-28 03:07:20,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6244 to 6241. [2024-11-28 03:07:20,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6241 states, 5920 states have (on average 1.2626689189189189) internal successors, (7475), 5963 states have internal predecessors, (7475), 256 states have call successors, (256), 64 states have call predecessors, (256), 64 states have return successors, (256), 213 states have call predecessors, (256), 256 states have call successors, (256) [2024-11-28 03:07:20,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6241 states to 6241 states and 7987 transitions. [2024-11-28 03:07:20,747 INFO L78 Accepts]: Start accepts. Automaton has 6241 states and 7987 transitions. Word has length 160 [2024-11-28 03:07:20,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:20,747 INFO L471 AbstractCegarLoop]: Abstraction has 6241 states and 7987 transitions. [2024-11-28 03:07:20,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:20,748 INFO L276 IsEmpty]: Start isEmpty. Operand 6241 states and 7987 transitions. [2024-11-28 03:07:20,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:07:20,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:20,752 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:20,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-28 03:07:20,753 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:20,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:20,753 INFO L85 PathProgramCache]: Analyzing trace with hash 858247306, now seen corresponding path program 1 times [2024-11-28 03:07:20,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:20,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947350949] [2024-11-28 03:07:20,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:20,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:20,939 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-28 03:07:20,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:20,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947350949] [2024-11-28 03:07:20,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947350949] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:20,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76000353] [2024-11-28 03:07:20,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:20,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:20,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:20,943 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:20,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:07:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:21,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:07:21,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:21,380 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:21,380 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:21,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76000353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:21,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:07:21,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2024-11-28 03:07:21,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540415967] [2024-11-28 03:07:21,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:21,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:07:21,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:21,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:07:21,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:07:21,382 INFO L87 Difference]: Start difference. First operand 6241 states and 7987 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:21,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:21,748 INFO L93 Difference]: Finished difference Result 12587 states and 16094 transitions. [2024-11-28 03:07:21,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:07:21,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-11-28 03:07:21,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:21,756 INFO L225 Difference]: With dead ends: 12587 [2024-11-28 03:07:21,756 INFO L226 Difference]: Without dead ends: 6381 [2024-11-28 03:07:21,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:07:21,761 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:21,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1025 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:07:21,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6381 states. [2024-11-28 03:07:22,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6381 to 6161. [2024-11-28 03:07:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6161 states, 5840 states have (on average 1.2611301369863013) internal successors, (7365), 5883 states have internal predecessors, (7365), 256 states have call successors, (256), 64 states have call predecessors, (256), 64 states have return successors, (256), 213 states have call predecessors, (256), 256 states have call successors, (256) [2024-11-28 03:07:22,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6161 states to 6161 states and 7877 transitions. [2024-11-28 03:07:22,105 INFO L78 Accepts]: Start accepts. Automaton has 6161 states and 7877 transitions. Word has length 160 [2024-11-28 03:07:22,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:22,106 INFO L471 AbstractCegarLoop]: Abstraction has 6161 states and 7877 transitions. [2024-11-28 03:07:22,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:22,106 INFO L276 IsEmpty]: Start isEmpty. Operand 6161 states and 7877 transitions. [2024-11-28 03:07:22,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:07:22,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:22,108 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:22,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:07:22,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-28 03:07:22,309 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:22,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:22,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1301681742, now seen corresponding path program 1 times [2024-11-28 03:07:22,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:22,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586157146] [2024-11-28 03:07:22,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:22,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:22,454 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:22,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:22,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586157146] [2024-11-28 03:07:22,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586157146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:22,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:22,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:07:22,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138547907] [2024-11-28 03:07:22,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:22,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:07:22,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:22,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:07:22,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:07:22,455 INFO L87 Difference]: Start difference. First operand 6161 states and 7877 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:22,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:22,882 INFO L93 Difference]: Finished difference Result 12147 states and 15429 transitions. [2024-11-28 03:07:22,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:07:22,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-11-28 03:07:22,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:22,891 INFO L225 Difference]: With dead ends: 12147 [2024-11-28 03:07:22,892 INFO L226 Difference]: Without dead ends: 6021 [2024-11-28 03:07:22,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:07:22,896 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 1 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:22,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 517 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:07:22,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2024-11-28 03:07:23,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 6021. [2024-11-28 03:07:23,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6021 states, 5700 states have (on average 1.2184210526315788) internal successors, (6945), 5743 states have internal predecessors, (6945), 256 states have call successors, (256), 64 states have call predecessors, (256), 64 states have return successors, (256), 213 states have call predecessors, (256), 256 states have call successors, (256) [2024-11-28 03:07:23,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6021 states to 6021 states and 7457 transitions. [2024-11-28 03:07:23,305 INFO L78 Accepts]: Start accepts. Automaton has 6021 states and 7457 transitions. Word has length 160 [2024-11-28 03:07:23,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:23,306 INFO L471 AbstractCegarLoop]: Abstraction has 6021 states and 7457 transitions. [2024-11-28 03:07:23,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:23,306 INFO L276 IsEmpty]: Start isEmpty. Operand 6021 states and 7457 transitions. [2024-11-28 03:07:23,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-28 03:07:23,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:23,309 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:23,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-28 03:07:23,309 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:23,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:23,309 INFO L85 PathProgramCache]: Analyzing trace with hash -795053308, now seen corresponding path program 1 times [2024-11-28 03:07:23,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:23,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331105199] [2024-11-28 03:07:23,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:23,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:23,772 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:23,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:23,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331105199] [2024-11-28 03:07:23,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331105199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:23,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:23,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:23,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552674442] [2024-11-28 03:07:23,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:23,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:23,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:23,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:23,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:23,774 INFO L87 Difference]: Start difference. First operand 6021 states and 7457 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:24,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:24,248 INFO L93 Difference]: Finished difference Result 12152 states and 15057 transitions. [2024-11-28 03:07:24,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:24,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 161 [2024-11-28 03:07:24,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:24,259 INFO L225 Difference]: With dead ends: 12152 [2024-11-28 03:07:24,259 INFO L226 Difference]: Without dead ends: 6166 [2024-11-28 03:07:24,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:24,266 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 121 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:24,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 627 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:07:24,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6166 states. [2024-11-28 03:07:24,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6166 to 6021. [2024-11-28 03:07:24,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6021 states, 5700 states have (on average 1.2126315789473685) internal successors, (6912), 5743 states have internal predecessors, (6912), 256 states have call successors, (256), 64 states have call predecessors, (256), 64 states have return successors, (256), 213 states have call predecessors, (256), 256 states have call successors, (256) [2024-11-28 03:07:24,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6021 states to 6021 states and 7424 transitions. [2024-11-28 03:07:24,712 INFO L78 Accepts]: Start accepts. Automaton has 6021 states and 7424 transitions. Word has length 161 [2024-11-28 03:07:24,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:24,713 INFO L471 AbstractCegarLoop]: Abstraction has 6021 states and 7424 transitions. [2024-11-28 03:07:24,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:24,713 INFO L276 IsEmpty]: Start isEmpty. Operand 6021 states and 7424 transitions. [2024-11-28 03:07:24,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-28 03:07:24,715 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:24,716 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:24,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-28 03:07:24,716 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:24,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:24,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1188080318, now seen corresponding path program 1 times [2024-11-28 03:07:24,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:24,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665529511] [2024-11-28 03:07:24,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:24,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:25,254 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:25,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:25,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665529511] [2024-11-28 03:07:25,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665529511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:25,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:25,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:25,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031972939] [2024-11-28 03:07:25,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:25,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:07:25,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:25,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:07:25,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:07:25,256 INFO L87 Difference]: Start difference. First operand 6021 states and 7424 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:25,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:25,776 INFO L93 Difference]: Finished difference Result 12158 states and 14971 transitions. [2024-11-28 03:07:25,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:07:25,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 161 [2024-11-28 03:07:25,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:25,784 INFO L225 Difference]: With dead ends: 12158 [2024-11-28 03:07:25,784 INFO L226 Difference]: Without dead ends: 6172 [2024-11-28 03:07:25,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:25,788 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 100 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:25,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 616 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:07:25,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6172 states. [2024-11-28 03:07:26,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6172 to 6025. [2024-11-28 03:07:26,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6025 states, 5703 states have (on average 1.210590917061196) internal successors, (6904), 5746 states have internal predecessors, (6904), 256 states have call successors, (256), 65 states have call predecessors, (256), 65 states have return successors, (256), 213 states have call predecessors, (256), 256 states have call successors, (256) [2024-11-28 03:07:26,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6025 states to 6025 states and 7416 transitions. [2024-11-28 03:07:26,098 INFO L78 Accepts]: Start accepts. Automaton has 6025 states and 7416 transitions. Word has length 161 [2024-11-28 03:07:26,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:26,099 INFO L471 AbstractCegarLoop]: Abstraction has 6025 states and 7416 transitions. [2024-11-28 03:07:26,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:26,099 INFO L276 IsEmpty]: Start isEmpty. Operand 6025 states and 7416 transitions. [2024-11-28 03:07:26,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-28 03:07:26,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:26,101 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:26,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-28 03:07:26,102 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:26,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:26,102 INFO L85 PathProgramCache]: Analyzing trace with hash -991275417, now seen corresponding path program 1 times [2024-11-28 03:07:26,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:26,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843486261] [2024-11-28 03:07:26,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:26,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:26,451 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 15 proven. 39 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-28 03:07:26,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:26,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843486261] [2024-11-28 03:07:26,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843486261] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:26,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55464880] [2024-11-28 03:07:26,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:26,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:26,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:26,453 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:26,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:07:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:26,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 03:07:26,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:26,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:07:27,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-28 03:07:27,233 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:07:27,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 26 [2024-11-28 03:07:27,254 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 288 proven. 39 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-28 03:07:27,254 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:07:27,576 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 15 proven. 39 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-28 03:07:27,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55464880] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:07:27,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:07:27,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2024-11-28 03:07:27,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453010593] [2024-11-28 03:07:27,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:07:27,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:07:27,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:27,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:07:27,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:07:27,578 INFO L87 Difference]: Start difference. First operand 6025 states and 7416 transitions. Second operand has 13 states, 11 states have (on average 9.909090909090908) internal successors, (109), 13 states have internal predecessors, (109), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 2 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-28 03:07:28,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:28,771 INFO L93 Difference]: Finished difference Result 11898 states and 14765 transitions. [2024-11-28 03:07:28,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 03:07:28,771 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.909090909090908) internal successors, (109), 13 states have internal predecessors, (109), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 2 states have call predecessors, (33), 4 states have call successors, (33) Word has length 161 [2024-11-28 03:07:28,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:28,782 INFO L225 Difference]: With dead ends: 11898 [2024-11-28 03:07:28,782 INFO L226 Difference]: Without dead ends: 5912 [2024-11-28 03:07:28,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 318 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=229, Invalid=763, Unknown=0, NotChecked=0, Total=992 [2024-11-28 03:07:28,788 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 523 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:28,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 954 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:07:28,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5912 states. [2024-11-28 03:07:29,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5912 to 5103. [2024-11-28 03:07:29,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 4693 states have (on average 1.1900703174941403) internal successors, (5585), 4736 states have internal predecessors, (5585), 312 states have call successors, (312), 97 states have call predecessors, (312), 97 states have return successors, (312), 269 states have call predecessors, (312), 312 states have call successors, (312) [2024-11-28 03:07:29,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 6209 transitions. [2024-11-28 03:07:29,255 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 6209 transitions. Word has length 161 [2024-11-28 03:07:29,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:29,255 INFO L471 AbstractCegarLoop]: Abstraction has 5103 states and 6209 transitions. [2024-11-28 03:07:29,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.909090909090908) internal successors, (109), 13 states have internal predecessors, (109), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 2 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-28 03:07:29,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 6209 transitions. [2024-11-28 03:07:29,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-28 03:07:29,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:29,258 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:29,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:07:29,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-11-28 03:07:29,458 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:29,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:29,459 INFO L85 PathProgramCache]: Analyzing trace with hash 242058368, now seen corresponding path program 1 times [2024-11-28 03:07:29,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:29,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14293521] [2024-11-28 03:07:29,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:29,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:30,429 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:30,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:30,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14293521] [2024-11-28 03:07:30,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14293521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:30,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:30,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:07:30,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305115266] [2024-11-28 03:07:30,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:30,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:07:30,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:30,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:07:30,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:07:30,431 INFO L87 Difference]: Start difference. First operand 5103 states and 6209 transitions. Second operand has 14 states, 12 states have (on average 5.916666666666667) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:07:31,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:31,814 INFO L93 Difference]: Finished difference Result 6186 states and 7491 transitions. [2024-11-28 03:07:31,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:07:31,815 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.916666666666667) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 163 [2024-11-28 03:07:31,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:31,826 INFO L225 Difference]: With dead ends: 6186 [2024-11-28 03:07:31,827 INFO L226 Difference]: Without dead ends: 6184 [2024-11-28 03:07:31,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:07:31,829 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 212 mSDsluCounter, 2006 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2222 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:31,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 2222 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:07:31,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6184 states. [2024-11-28 03:07:32,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6184 to 4508. [2024-11-28 03:07:32,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4508 states, 4258 states have (on average 1.1914044152184124) internal successors, (5073), 4279 states have internal predecessors, (5073), 185 states have call successors, (185), 64 states have call predecessors, (185), 64 states have return successors, (185), 164 states have call predecessors, (185), 185 states have call successors, (185) [2024-11-28 03:07:32,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 5443 transitions. [2024-11-28 03:07:32,152 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 5443 transitions. Word has length 163 [2024-11-28 03:07:32,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:32,153 INFO L471 AbstractCegarLoop]: Abstraction has 4508 states and 5443 transitions. [2024-11-28 03:07:32,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.916666666666667) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:07:32,153 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 5443 transitions. [2024-11-28 03:07:32,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-28 03:07:32,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:32,156 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:32,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-28 03:07:32,157 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:32,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:32,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1822060643, now seen corresponding path program 1 times [2024-11-28 03:07:32,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:32,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341496453] [2024-11-28 03:07:32,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:32,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:07:32,252 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:07:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:07:32,374 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:07:32,374 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:07:32,375 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:07:32,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-28 03:07:32,380 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:32,510 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:07:32,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:07:32 BoogieIcfgContainer [2024-11-28 03:07:32,515 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:07:32,517 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:07:32,517 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:07:32,517 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:07:32,518 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:41" (3/4) ... [2024-11-28 03:07:32,523 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:07:32,524 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:07:32,525 INFO L158 Benchmark]: Toolchain (without parser) took 112269.39ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 117.0MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 215.3MB. Max. memory is 16.1GB. [2024-11-28 03:07:32,525 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:07:32,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.08ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 100.4MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:07:32,525 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.41ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 95.6MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:07:32,525 INFO L158 Benchmark]: Boogie Preprocessor took 85.07ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 90.6MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:07:32,526 INFO L158 Benchmark]: RCFGBuilder took 1127.84ms. Allocated memory is still 142.6MB. Free memory was 90.4MB in the beginning and 51.7MB in the end (delta: 38.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-28 03:07:32,526 INFO L158 Benchmark]: TraceAbstraction took 110529.82ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 51.0MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 148.1MB. Max. memory is 16.1GB. [2024-11-28 03:07:32,526 INFO L158 Benchmark]: Witness Printer took 6.91ms. Allocated memory is still 1.7GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 237.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:07:32,528 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 424.08ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 100.4MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.41ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 95.6MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.07ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 90.6MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1127.84ms. Allocated memory is still 142.6MB. Free memory was 90.4MB in the beginning and 51.7MB in the end (delta: 38.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 110529.82ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 51.0MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 148.1MB. Max. memory is 16.1GB. * Witness Printer took 6.91ms. Allocated memory is still 1.7GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 237.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 83, overapproximation of someBinaryDOUBLEComparisonOperation at line 83, overapproximation of someBinaryDOUBLEComparisonOperation at line 104. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 0, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 0, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 0, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 0, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 0, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 0, 0, 0, 1 }; [L25-L27] double double_Array_0[2] = { 10.5, 99.25 }; [L25-L27] double double_Array_0[2] = { 10.5, 99.25 }; [L25-L27] double double_Array_0[2] = { 10.5, 99.25 }; [L28-L30] signed char signed_char_Array_0[1] = { 0 }; [L28-L30] signed char signed_char_Array_0[1] = { 0 }; [L31-L33] unsigned char unsigned_char_Array_0[2][3] = { {8, 64, 128}, {2, 16, 1} }; [L31-L33] unsigned char unsigned_char_Array_0[2][3] = { {8, 64, 128}, {2, 16, 1} }; [L31-L33] unsigned char unsigned_char_Array_0[2][3] = { {8, 64, 128}, {2, 16, 1} }; [L31-L33] unsigned char unsigned_char_Array_0[2][3] = { {8, 64, 128}, {2, 16, 1} }; [L31-L33] unsigned char unsigned_char_Array_0[2][3] = { {8, 64, 128}, {2, 16, 1} }; [L31-L33] unsigned char unsigned_char_Array_0[2][3] = { {8, 64, 128}, {2, 16, 1} }; [L31-L33] unsigned char unsigned_char_Array_0[2][3] = { {8, 64, 128}, {2, 16, 1} }; [L34] unsigned char last_1_unsigned_char_Array_0_0__1_ = 64; VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=0, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L108] isInitial = 1 [L109] FCALL initially() [L111] CALL updateLastVariables() [L101] EXPR unsigned_char_Array_0[0][1] [L101] last_1_unsigned_char_Array_0_0__1_ = unsigned_char_Array_0[0][1] [L111] RET updateLastVariables() [L112] CALL updateVariables() [L70] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L71] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L71] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L71] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L72] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L72] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L72] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L73] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L74] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L75] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L75] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L75] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L76] BOOL_unsigned_char_Array_0[3] = __VERIFIER_nondet_uchar() [L77] EXPR BOOL_unsigned_char_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[3] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[3] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L78] EXPR BOOL_unsigned_char_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L78] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[3] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L78] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[3] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L79] BOOL_unsigned_char_Array_0[4] = __VERIFIER_nondet_uchar() [L80] EXPR BOOL_unsigned_char_Array_0[4] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[4] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[4] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L81] EXPR BOOL_unsigned_char_Array_0[4] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L81] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[4] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L81] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[4] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] double_Array_0[1] = __VERIFIER_nondet_double() [L83] EXPR double_Array_0[1] [L83] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F [L83] EXPR double_Array_0[1] [L83] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR (double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR (double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] CALL assume_abort_if_not((double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] RET assume_abort_if_not((double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L84] signed_char_Array_0[0] = __VERIFIER_nondet_char() [L85] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L85] CALL assume_abort_if_not(signed_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L85] RET assume_abort_if_not(signed_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L86] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L86] CALL assume_abort_if_not(signed_char_Array_0[0] <= 16) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L86] RET assume_abort_if_not(signed_char_Array_0[0] <= 16) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L87] unsigned_char_Array_0[0][0] = __VERIFIER_nondet_uchar() [L88] EXPR unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L88] CALL assume_abort_if_not(unsigned_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L88] RET assume_abort_if_not(unsigned_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] CALL assume_abort_if_not(unsigned_char_Array_0[0][0] <= 64) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] RET assume_abort_if_not(unsigned_char_Array_0[0][0] <= 64) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L90] unsigned_char_Array_0[1][0] = __VERIFIER_nondet_uchar() [L91] EXPR unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L91] CALL assume_abort_if_not(unsigned_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L91] RET assume_abort_if_not(unsigned_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L92] EXPR unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L92] CALL assume_abort_if_not(unsigned_char_Array_0[1][0] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L92] RET assume_abort_if_not(unsigned_char_Array_0[1][0] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L93] unsigned_char_Array_0[1][1] = __VERIFIER_nondet_uchar() [L94] EXPR unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L94] CALL assume_abort_if_not(unsigned_char_Array_0[1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L94] RET assume_abort_if_not(unsigned_char_Array_0[1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L95] EXPR unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L95] CALL assume_abort_if_not(unsigned_char_Array_0[1][1] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L95] RET assume_abort_if_not(unsigned_char_Array_0[1][1] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L96] unsigned_char_Array_0[0][2] = __VERIFIER_nondet_uchar() [L97] EXPR unsigned_char_Array_0[0][2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L97] CALL assume_abort_if_not(unsigned_char_Array_0[0][2] >= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L97] RET assume_abort_if_not(unsigned_char_Array_0[0][2] >= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR unsigned_char_Array_0[0][2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] CALL assume_abort_if_not(unsigned_char_Array_0[0][2] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] RET assume_abort_if_not(unsigned_char_Array_0[0][2] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L112] RET updateVariables() [L113] CALL step() [L38] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L38] EXPR last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L38] COND TRUE (last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_ [L39] EXPR signed_char_Array_0[0] [L39] EXPR unsigned_char_Array_0[0][2] [L39] EXPR unsigned_char_Array_0[1][1] [L39] EXPR unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L39] EXPR ((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]) [L39] EXPR unsigned_char_Array_0[1][1] [L39] EXPR ((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L39] EXPR ((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))) [L39] EXPR signed_char_Array_0[0] [L39] EXPR ((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L39] unsigned_char_Array_0[1][2] = ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))) [L43] EXPR unsigned_char_Array_0[0][0] [L43] EXPR unsigned_char_Array_0[1][2] [L43] EXPR unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L43] COND FALSE !((unsigned_char_Array_0[0][0] + unsigned_char_Array_0[1][2]) >= unsigned_char_Array_0[1][0]) [L46] EXPR BOOL_unsigned_char_Array_0[0] [L46] BOOL_unsigned_char_Array_0[0] || BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L46] BOOL_unsigned_char_Array_0[0] || BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L46] COND TRUE BOOL_unsigned_char_Array_0[0] || BOOL_unsigned_char_Array_0[1] [L47] EXPR unsigned_char_Array_0[1][2] [L47] EXPR unsigned_char_Array_0[0][0] [L47] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L47] EXPR unsigned_char_Array_0[0][0] << signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L47] COND FALSE !(unsigned_char_Array_0[1][2] >= (unsigned_char_Array_0[0][0] << signed_char_Array_0[0])) [L54] EXPR BOOL_unsigned_char_Array_0[4] [L54] BOOL_unsigned_char_Array_0[2] = BOOL_unsigned_char_Array_0[4] [L59] EXPR unsigned_char_Array_0[0][1] [L59] unsigned char stepLocal_1 = unsigned_char_Array_0[0][1]; [L60] EXPR BOOL_unsigned_char_Array_0[2] [L60] unsigned char stepLocal_0 = BOOL_unsigned_char_Array_0[2]; [L61] BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L61] COND TRUE BOOL_unsigned_char_Array_0[2] [L62] stepLocal_0 || BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, stepLocal_1=64, unsigned_char_Array_0={7:0}] [L62] stepLocal_0 || BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L62] COND TRUE stepLocal_0 || BOOL_unsigned_char_Array_0[2] [L63] EXPR unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L63] COND TRUE stepLocal_1 > unsigned_char_Array_0[1][1] [L64] EXPR double_Array_0[1] [L64] double_Array_0[0] = double_Array_0[1] [L113] RET step() [L114] CALL, EXPR property() [L104] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR ((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0])))))) [L104] EXPR unsigned_char_Array_0[1][2] [L104] EXPR signed_char_Array_0[0] [L104] EXPR unsigned_char_Array_0[0][2] [L104] EXPR unsigned_char_Array_0[1][1] [L104] EXPR unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR ((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]) [L104] EXPR unsigned_char_Array_0[1][1] [L104] EXPR ((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR ((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))) [L104] EXPR signed_char_Array_0[0] [L104] EXPR ((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR ((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0])))))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1) [L104] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1 [L104] EXPR BOOL_unsigned_char_Array_0[2] [L104] EXPR BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1 [L104] EXPR unsigned_char_Array_0[0][1] [L104] EXPR unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1 [L104] EXPR double_Array_0[0] [L104] EXPR double_Array_0[1] [L104] EXPR (unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR ((((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1)) && (((unsigned_char_Array_0[0][0] + unsigned_char_Array_0[1][2]) >= unsigned_char_Array_0[1][0]) ? (unsigned_char_Array_0[0][1] == ((unsigned char) unsigned_char_Array_0[1][1])) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR ((((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1)) && (((unsigned_char_Array_0[0][0] + unsigned_char_Array_0[1][2]) >= unsigned_char_Array_0[1][0]) ? (unsigned_char_Array_0[0][1] == ((unsigned char) unsigned_char_Array_0[1][1])) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (((((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1)) && (((unsigned_char_Array_0[0][0] + unsigned_char_Array_0[1][2]) >= unsigned_char_Array_0[1][0]) ? (unsigned_char_Array_0[0][1] == ((unsigned char) unsigned_char_Array_0[1][1])) : 1)) && ((BOOL_unsigned_char_Array_0[0] || BOOL_unsigned_char_Array_0[1]) ? ((unsigned_char_Array_0[1][2] >= (unsigned_char_Array_0[0][0] << signed_char_Array_0[0])) ? ((unsigned_char_Array_0[1][1] > unsigned_char_Array_0[1][0]) ? (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[3])) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) 1))) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[4]))) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[3]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (((((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1)) && (((unsigned_char_Array_0[0][0] + unsigned_char_Array_0[1][2]) >= unsigned_char_Array_0[1][0]) ? (unsigned_char_Array_0[0][1] == ((unsigned char) unsigned_char_Array_0[1][1])) : 1)) && ((BOOL_unsigned_char_Array_0[0] || BOOL_unsigned_char_Array_0[1]) ? ((unsigned_char_Array_0[1][2] >= (unsigned_char_Array_0[0][0] << signed_char_Array_0[0])) ? ((unsigned_char_Array_0[1][1] > unsigned_char_Array_0[1][0]) ? (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[3])) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) 1))) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[4]))) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[3]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104-L105] return (((((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1)) && (((unsigned_char_Array_0[0][0] + unsigned_char_Array_0[1][2]) >= unsigned_char_Array_0[1][0]) ? (unsigned_char_Array_0[0][1] == ((unsigned char) unsigned_char_Array_0[1][1])) : 1)) && ((BOOL_unsigned_char_Array_0[0] || BOOL_unsigned_char_Array_0[1]) ? ((unsigned_char_Array_0[1][2] >= (unsigned_char_Array_0[0][0] << signed_char_Array_0[0])) ? ((unsigned_char_Array_0[1][1] > unsigned_char_Array_0[1][0]) ? (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[3])) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) 1))) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[4]))) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[3]))) ; [L114] RET, EXPR property() [L114] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 126 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 110.3s, OverallIterations: 55, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 47.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11773 SdHoareTripleChecker+Valid, 28.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11715 mSDsluCounter, 73274 SdHoareTripleChecker+Invalid, 24.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61437 mSDsCounter, 1716 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27692 IncrementalHoareTripleChecker+Invalid, 29408 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1716 mSolverCounterUnsat, 11837 mSDtfsCounter, 27692 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1925 GetRequests, 1310 SyntacticMatches, 3 SemanticMatches, 612 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2065 ImplicationChecksByTransitivity, 12.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6241occurred in iteration=47, InterpolantAutomatonStates: 540, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.2s AutomataMinimizationTime, 54 MinimizatonAttempts, 9561 StatesRemovedByMinimization, 43 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 45.2s InterpolantComputationTime, 9337 NumberOfCodeBlocks, 9337 NumberOfCodeBlocksAsserted, 60 NumberOfCheckSat, 9275 ConstructedInterpolants, 0 QuantifiedInterpolants, 34429 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2599 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 60 InterpolantComputations, 53 PerfectInterpolantSequences, 40725/41040 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:07:32,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d9fefadeb2433964027133b2762439d0736284a9020eef9186f2d2400ba62b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:07:35,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:07:35,377 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:07:35,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:07:35,384 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:07:35,409 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:07:35,409 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:07:35,409 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:07:35,410 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:07:35,410 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:07:35,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:07:35,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:07:35,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:07:35,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:07:35,411 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:07:35,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:07:35,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:07:35,411 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:07:35,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:07:35,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:07:35,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:07:35,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:07:35,412 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:07:35,412 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:07:35,412 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:07:35,413 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:07:35,413 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:07:35,413 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:07:35,413 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:07:35,413 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:07:35,413 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:07:35,413 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:07:35,414 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:07:35,414 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:07:35,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:07:35,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:07:35,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:07:35,414 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:07:35,414 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:07:35,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:07:35,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:07:35,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:07:35,415 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:07:35,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:07:35,415 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:07:35,415 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:07:35,415 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:07:35,416 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:07:35,416 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:07:35,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:07:35,416 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d9fefadeb2433964027133b2762439d0736284a9020eef9186f2d2400ba62b5 [2024-11-28 03:07:35,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:07:35,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:07:35,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:07:35,725 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:07:35,725 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:07:35,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i [2024-11-28 03:07:38,766 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/data/4cb889e9e/d393e7eb00944d46b8ad44f1664bc855/FLAGb5224323c [2024-11-28 03:07:39,052 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:07:39,053 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i [2024-11-28 03:07:39,067 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/data/4cb889e9e/d393e7eb00944d46b8ad44f1664bc855/FLAGb5224323c [2024-11-28 03:07:39,088 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/data/4cb889e9e/d393e7eb00944d46b8ad44f1664bc855 [2024-11-28 03:07:39,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:07:39,094 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:07:39,096 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:07:39,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:07:39,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:07:39,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77d38711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39, skipping insertion in model container [2024-11-28 03:07:39,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,125 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:07:39,294 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i[916,929] [2024-11-28 03:07:39,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:07:39,400 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:07:39,412 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i[916,929] [2024-11-28 03:07:39,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:07:39,533 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:07:39,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39 WrapperNode [2024-11-28 03:07:39,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:07:39,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:07:39,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:07:39,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:07:39,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,646 INFO L138 Inliner]: procedures = 30, calls = 181, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 545 [2024-11-28 03:07:39,646 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:07:39,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:07:39,647 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:07:39,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:07:39,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,671 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,710 INFO L175 MemorySlicer]: Split 147 memory accesses to 5 slices as follows [2, 41, 11, 16, 77]. 52 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 5, 2, 1, 6]. The 18 writes are split as follows [0, 8, 2, 1, 7]. [2024-11-28 03:07:39,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,733 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,740 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:07:39,751 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:07:39,751 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:07:39,751 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:07:39,752 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:07:39,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:39,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:07:39,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:07:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:07:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-28 03:07:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-28 03:07:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-28 03:07:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-28 03:07:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-28 03:07:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-28 03:07:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-28 03:07:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-28 03:07:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-28 03:07:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-28 03:07:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 03:07:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 03:07:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 03:07:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-28 03:07:39,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-28 03:07:39,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:07:39,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 03:07:39,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 03:07:39,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-28 03:07:39,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-28 03:07:39,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-28 03:07:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-28 03:07:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-11-28 03:07:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-11-28 03:07:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-11-28 03:07:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:07:39,822 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:07:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:07:39,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:07:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-28 03:07:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-28 03:07:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-28 03:07:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-28 03:07:39,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-28 03:07:40,010 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:07:40,012 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:07:40,802 INFO L? ?]: Removed 148 outVars from TransFormulas that were not future-live. [2024-11-28 03:07:40,802 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:07:40,814 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:07:40,814 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:07:40,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:40 BoogieIcfgContainer [2024-11-28 03:07:40,815 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:07:40,817 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:07:40,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:07:40,822 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:07:40,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:07:39" (1/3) ... [2024-11-28 03:07:40,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3e86e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:40, skipping insertion in model container [2024-11-28 03:07:40,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (2/3) ... [2024-11-28 03:07:40,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3e86e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:40, skipping insertion in model container [2024-11-28 03:07:40,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:40" (3/3) ... [2024-11-28 03:07:40,825 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-56.i [2024-11-28 03:07:40,841 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:07:40,842 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-56.i that has 2 procedures, 118 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:07:40,897 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:07:40,909 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@334b0e5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:07:40,909 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:07:40,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 96 states have (on average 1.4270833333333333) internal successors, (137), 97 states have internal predecessors, (137), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 03:07:40,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 03:07:40,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:40,926 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:40,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:40,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:40,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1859210493, now seen corresponding path program 1 times [2024-11-28 03:07:40,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:07:40,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159734425] [2024-11-28 03:07:40,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:40,945 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:40,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:07:40,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:07:40,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 03:07:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:41,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:07:41,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:41,390 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-28 03:07:41,391 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:41,391 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:07:41,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159734425] [2024-11-28 03:07:41,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159734425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:41,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:41,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:41,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214730694] [2024-11-28 03:07:41,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:41,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:07:41,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:07:41,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:07:41,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:07:41,446 INFO L87 Difference]: Start difference. First operand has 118 states, 96 states have (on average 1.4270833333333333) internal successors, (137), 97 states have internal predecessors, (137), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:41,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:41,492 INFO L93 Difference]: Finished difference Result 229 states and 363 transitions. [2024-11-28 03:07:41,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:07:41,495 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 149 [2024-11-28 03:07:41,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:41,501 INFO L225 Difference]: With dead ends: 229 [2024-11-28 03:07:41,502 INFO L226 Difference]: Without dead ends: 114 [2024-11-28 03:07:41,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:07:41,508 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:41,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:07:41,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-28 03:07:41,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-28 03:07:41,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.3978494623655915) internal successors, (130), 93 states have internal predecessors, (130), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 03:07:41,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 168 transitions. [2024-11-28 03:07:41,554 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 168 transitions. Word has length 149 [2024-11-28 03:07:41,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:41,555 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 168 transitions. [2024-11-28 03:07:41,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:07:41,555 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 168 transitions. [2024-11-28 03:07:41,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 03:07:41,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:41,558 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:41,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:07:41,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:41,759 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:41,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:41,760 INFO L85 PathProgramCache]: Analyzing trace with hash -187480061, now seen corresponding path program 1 times [2024-11-28 03:07:41,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:07:41,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631119870] [2024-11-28 03:07:41,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:41,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:41,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:07:41,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:07:41,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 03:07:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:42,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:07:42,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:42,124 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:42,125 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:42,125 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:07:42,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631119870] [2024-11-28 03:07:42,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631119870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:42,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:42,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:07:42,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292507058] [2024-11-28 03:07:42,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:42,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:07:42,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:07:42,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:07:42,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:42,130 INFO L87 Difference]: Start difference. First operand 114 states and 168 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:42,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:42,191 INFO L93 Difference]: Finished difference Result 226 states and 335 transitions. [2024-11-28 03:07:42,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:07:42,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2024-11-28 03:07:42,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:42,194 INFO L225 Difference]: With dead ends: 226 [2024-11-28 03:07:42,197 INFO L226 Difference]: Without dead ends: 115 [2024-11-28 03:07:42,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:07:42,199 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:42,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:07:42,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-28 03:07:42,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-28 03:07:42,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 94 states have internal predecessors, (131), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 03:07:42,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 169 transitions. [2024-11-28 03:07:42,215 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 169 transitions. Word has length 149 [2024-11-28 03:07:42,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:42,218 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 169 transitions. [2024-11-28 03:07:42,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:42,219 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 169 transitions. [2024-11-28 03:07:42,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 03:07:42,222 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:42,223 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:42,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:07:42,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:42,424 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:42,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:42,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1876423803, now seen corresponding path program 1 times [2024-11-28 03:07:42,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:07:42,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854501797] [2024-11-28 03:07:42,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:42,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:42,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:07:42,429 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:07:42,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-28 03:07:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:42,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 03:07:42,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:42,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:07:44,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-11-28 03:07:44,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2024-11-28 03:07:44,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-11-28 03:07:44,614 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:07:44,614 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:07:45,042 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:45,042 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:07:45,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854501797] [2024-11-28 03:07:45,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854501797] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:45,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:07:45,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 25 [2024-11-28 03:07:45,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114622591] [2024-11-28 03:07:45,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:45,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:07:45,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:07:45,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:07:45,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:07:45,045 INFO L87 Difference]: Start difference. First operand 115 states and 169 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:45,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:45,881 INFO L93 Difference]: Finished difference Result 312 states and 459 transitions. [2024-11-28 03:07:45,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:07:45,882 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2024-11-28 03:07:45,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:45,884 INFO L225 Difference]: With dead ends: 312 [2024-11-28 03:07:45,884 INFO L226 Difference]: Without dead ends: 200 [2024-11-28 03:07:45,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=90, Invalid=722, Unknown=0, NotChecked=0, Total=812 [2024-11-28 03:07:45,886 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 117 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:45,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1116 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:07:45,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-28 03:07:45,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 197. [2024-11-28 03:07:45,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 166 states have (on average 1.4096385542168675) internal successors, (234), 167 states have internal predecessors, (234), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 03:07:45,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 290 transitions. [2024-11-28 03:07:45,908 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 290 transitions. Word has length 149 [2024-11-28 03:07:45,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:45,909 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 290 transitions. [2024-11-28 03:07:45,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:45,909 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 290 transitions. [2024-11-28 03:07:45,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 03:07:45,911 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:45,911 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:45,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-28 03:07:46,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:46,112 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:46,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:46,113 INFO L85 PathProgramCache]: Analyzing trace with hash 985722527, now seen corresponding path program 1 times [2024-11-28 03:07:46,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:07:46,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789287372] [2024-11-28 03:07:46,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:46,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:46,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:07:46,119 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:07:46,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-28 03:07:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:46,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 03:07:46,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:46,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:07:47,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-28 03:07:47,623 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:07:47,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:07:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:47,903 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:07:47,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789287372] [2024-11-28 03:07:47,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789287372] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:47,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:07:47,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 18 [2024-11-28 03:07:47,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361222557] [2024-11-28 03:07:47,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:47,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:07:47,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:07:47,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:07:47,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:07:47,907 INFO L87 Difference]: Start difference. First operand 197 states and 290 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:48,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:48,066 INFO L93 Difference]: Finished difference Result 436 states and 645 transitions. [2024-11-28 03:07:48,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:07:48,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-28 03:07:48,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:48,070 INFO L225 Difference]: With dead ends: 436 [2024-11-28 03:07:48,071 INFO L226 Difference]: Without dead ends: 242 [2024-11-28 03:07:48,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:07:48,073 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 142 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:48,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 510 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:07:48,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-28 03:07:48,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 208. [2024-11-28 03:07:48,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 177 states have (on average 1.4180790960451977) internal successors, (251), 178 states have internal predecessors, (251), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 03:07:48,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 307 transitions. [2024-11-28 03:07:48,096 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 307 transitions. Word has length 150 [2024-11-28 03:07:48,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:48,096 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 307 transitions. [2024-11-28 03:07:48,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:48,097 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 307 transitions. [2024-11-28 03:07:48,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 03:07:48,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:48,100 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:48,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-28 03:07:48,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:48,301 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:48,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:48,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1804936461, now seen corresponding path program 1 times [2024-11-28 03:07:48,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:07:48,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179482902] [2024-11-28 03:07:48,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:48,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:48,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:07:48,311 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:07:48,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-28 03:07:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:48,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:07:48,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:48,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:07:48,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-11-28 03:07:49,041 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:07:49,041 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:49,042 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:07:49,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179482902] [2024-11-28 03:07:49,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179482902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:49,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:49,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:07:49,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110917019] [2024-11-28 03:07:49,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:49,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:07:49,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:07:49,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:07:49,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:07:49,044 INFO L87 Difference]: Start difference. First operand 208 states and 307 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:52,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:52,329 INFO L93 Difference]: Finished difference Result 816 states and 1206 transitions. [2024-11-28 03:07:52,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:07:52,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-28 03:07:52,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:52,334 INFO L225 Difference]: With dead ends: 816 [2024-11-28 03:07:52,334 INFO L226 Difference]: Without dead ends: 611 [2024-11-28 03:07:52,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:07:52,336 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 420 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:52,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 920 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 03:07:52,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-28 03:07:52,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 424. [2024-11-28 03:07:52,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 363 states have (on average 1.4269972451790633) internal successors, (518), 365 states have internal predecessors, (518), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 03:07:52,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 630 transitions. [2024-11-28 03:07:52,405 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 630 transitions. Word has length 150 [2024-11-28 03:07:52,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:52,407 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 630 transitions. [2024-11-28 03:07:52,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:07:52,407 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 630 transitions. [2024-11-28 03:07:52,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:07:52,411 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:52,411 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:52,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:07:52,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:52,612 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:52,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:52,613 INFO L85 PathProgramCache]: Analyzing trace with hash 31387903, now seen corresponding path program 1 times [2024-11-28 03:07:52,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:07:52,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792355724] [2024-11-28 03:07:52,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:52,613 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:52,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:07:52,615 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:07:52,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-28 03:07:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:52,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-28 03:07:52,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:53,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-28 03:07:53,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 03:07:54,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-28 03:07:54,920 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:07:54,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 31 [2024-11-28 03:07:55,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 45 [2024-11-28 03:07:57,979 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:07:57,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 94 [2024-11-28 03:07:59,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 43 [2024-11-28 03:07:59,658 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:07:59,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 158 treesize of output 72 [2024-11-28 03:08:00,152 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 155 proven. 373 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 03:08:00,152 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:08:02,325 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:08:02,325 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:08:02,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792355724] [2024-11-28 03:08:02,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792355724] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:08:02,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:08:02,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [40] total 51 [2024-11-28 03:08:02,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77221246] [2024-11-28 03:08:02,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:02,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:08:02,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:08:02,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:08:02,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=2291, Unknown=0, NotChecked=0, Total=2550 [2024-11-28 03:08:02,327 INFO L87 Difference]: Start difference. First operand 424 states and 630 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:08:06,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:06,993 INFO L93 Difference]: Finished difference Result 1115 states and 1649 transitions. [2024-11-28 03:08:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:08:06,994 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:08:06,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:06,998 INFO L225 Difference]: With dead ends: 1115 [2024-11-28 03:08:06,998 INFO L226 Difference]: Without dead ends: 694 [2024-11-28 03:08:07,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 251 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1174 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=378, Invalid=3044, Unknown=0, NotChecked=0, Total=3422 [2024-11-28 03:08:07,002 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 699 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:07,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1409 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 03:08:07,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-11-28 03:08:07,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 482. [2024-11-28 03:08:07,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 421 states have (on average 1.4513064133016627) internal successors, (611), 423 states have internal predecessors, (611), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 03:08:07,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 723 transitions. [2024-11-28 03:08:07,065 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 723 transitions. Word has length 151 [2024-11-28 03:08:07,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:07,066 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 723 transitions. [2024-11-28 03:08:07,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:08:07,067 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 723 transitions. [2024-11-28 03:08:07,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:08:07,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:07,070 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:07,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-28 03:08:07,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:07,271 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:07,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:07,271 INFO L85 PathProgramCache]: Analyzing trace with hash -555418111, now seen corresponding path program 1 times [2024-11-28 03:08:07,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:08:07,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89647184] [2024-11-28 03:08:07,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:07,272 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:07,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:08:07,279 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:08:07,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-28 03:08:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:07,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 03:08:07,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:08:07,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:08:07,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-28 03:08:08,002 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:08,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 43 [2024-11-28 03:08:08,466 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:08,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 59 [2024-11-28 03:08:08,723 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:08,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 35 [2024-11-28 03:08:08,775 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 351 proven. 15 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-28 03:08:08,775 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:08:09,041 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:08:09,042 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:08:09,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89647184] [2024-11-28 03:08:09,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89647184] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:08:09,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:08:09,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2024-11-28 03:08:09,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81150051] [2024-11-28 03:08:09,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:09,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:08:09,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:08:09,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:08:09,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:08:09,043 INFO L87 Difference]: Start difference. First operand 482 states and 723 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:08:09,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:09,464 INFO L93 Difference]: Finished difference Result 1288 states and 1920 transitions. [2024-11-28 03:08:09,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:08:09,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:08:09,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:09,470 INFO L225 Difference]: With dead ends: 1288 [2024-11-28 03:08:09,472 INFO L226 Difference]: Without dead ends: 809 [2024-11-28 03:08:09,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:08:09,474 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 204 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:09,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 399 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:08:09,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2024-11-28 03:08:09,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 805. [2024-11-28 03:08:09,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 696 states have (on average 1.4224137931034482) internal successors, (990), 702 states have internal predecessors, (990), 100 states have call successors, (100), 8 states have call predecessors, (100), 8 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-28 03:08:09,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1190 transitions. [2024-11-28 03:08:09,558 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1190 transitions. Word has length 151 [2024-11-28 03:08:09,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:09,558 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 1190 transitions. [2024-11-28 03:08:09,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:08:09,559 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1190 transitions. [2024-11-28 03:08:09,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:08:09,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:09,564 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:09,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-28 03:08:09,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:09,765 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:09,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:09,765 INFO L85 PathProgramCache]: Analyzing trace with hash -391313923, now seen corresponding path program 1 times [2024-11-28 03:08:09,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:08:09,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660355238] [2024-11-28 03:08:09,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:09,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:09,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:08:09,767 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:08:09,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-28 03:08:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:10,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 03:08:10,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:08:10,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:08:10,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:08:10,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:08:12,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:12,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 70 [2024-11-28 03:08:12,468 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:12,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 115 treesize of output 84 [2024-11-28 03:08:12,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:12,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 55 [2024-11-28 03:08:13,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2024-11-28 03:08:13,698 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 444 proven. 42 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-28 03:08:13,698 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:08:15,308 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:08:15,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660355238] [2024-11-28 03:08:15,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660355238] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:08:15,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1303084008] [2024-11-28 03:08:15,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:15,309 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:08:15,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:08:15,311 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:08:15,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-28 03:08:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:16,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 03:08:16,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:08:16,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 03:08:16,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-28 03:08:17,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-28 03:08:19,834 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:19,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 68 [2024-11-28 03:08:20,179 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:20,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 71 [2024-11-28 03:08:20,822 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:20,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 50 [2024-11-28 03:08:21,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2024-11-28 03:08:21,269 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 257 proven. 6 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-28 03:08:21,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:08:21,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2024-11-28 03:08:21,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1303084008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:08:21,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:08:21,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 24] total 50 [2024-11-28 03:08:21,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472195554] [2024-11-28 03:08:21,745 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:08:21,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-28 03:08:21,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:08:21,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-28 03:08:21,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=3590, Unknown=0, NotChecked=0, Total=3906 [2024-11-28 03:08:21,748 INFO L87 Difference]: Start difference. First operand 805 states and 1190 transitions. Second operand has 51 states, 45 states have (on average 3.0) internal successors, (135), 47 states have internal predecessors, (135), 12 states have call successors, (38), 9 states have call predecessors, (38), 12 states have return successors, (38), 9 states have call predecessors, (38), 12 states have call successors, (38) [2024-11-28 03:08:37,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:37,989 INFO L93 Difference]: Finished difference Result 1576 states and 2300 transitions. [2024-11-28 03:08:37,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-28 03:08:37,990 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 45 states have (on average 3.0) internal successors, (135), 47 states have internal predecessors, (135), 12 states have call successors, (38), 9 states have call predecessors, (38), 12 states have return successors, (38), 9 states have call predecessors, (38), 12 states have call successors, (38) Word has length 151 [2024-11-28 03:08:37,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:37,995 INFO L225 Difference]: With dead ends: 1576 [2024-11-28 03:08:37,996 INFO L226 Difference]: Without dead ends: 1173 [2024-11-28 03:08:37,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 299 SyntacticMatches, 2 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2963 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=1263, Invalid=9657, Unknown=0, NotChecked=0, Total=10920 [2024-11-28 03:08:38,000 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 1334 mSDsluCounter, 5212 mSDsCounter, 0 mSdLazyCounter, 4025 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 5470 SdHoareTripleChecker+Invalid, 4294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 4025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:38,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 5470 Invalid, 4294 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [269 Valid, 4025 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-11-28 03:08:38,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2024-11-28 03:08:38,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 829. [2024-11-28 03:08:38,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 714 states have (on average 1.411764705882353) internal successors, (1008), 720 states have internal predecessors, (1008), 100 states have call successors, (100), 14 states have call predecessors, (100), 14 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-28 03:08:38,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1208 transitions. [2024-11-28 03:08:38,083 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1208 transitions. Word has length 151 [2024-11-28 03:08:38,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:38,085 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1208 transitions. [2024-11-28 03:08:38,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 45 states have (on average 3.0) internal successors, (135), 47 states have internal predecessors, (135), 12 states have call successors, (38), 9 states have call predecessors, (38), 12 states have return successors, (38), 9 states have call predecessors, (38), 12 states have call successors, (38) [2024-11-28 03:08:38,086 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1208 transitions. [2024-11-28 03:08:38,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:08:38,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:38,088 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:38,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-28 03:08:38,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-28 03:08:38,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:38,489 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:38,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:38,490 INFO L85 PathProgramCache]: Analyzing trace with hash 171936513, now seen corresponding path program 1 times [2024-11-28 03:08:38,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:08:38,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113938376] [2024-11-28 03:08:38,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:38,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:38,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:08:38,493 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:08:38,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-28 03:08:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:38,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:08:38,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:08:38,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:38,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 16 [2024-11-28 03:08:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:08:38,824 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:08:38,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:08:38,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113938376] [2024-11-28 03:08:38,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113938376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:38,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:38,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:08:38,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233385744] [2024-11-28 03:08:38,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:38,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:08:38,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:08:38,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:08:38,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:08:38,826 INFO L87 Difference]: Start difference. First operand 829 states and 1208 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:08:39,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:39,373 INFO L93 Difference]: Finished difference Result 1515 states and 2200 transitions. [2024-11-28 03:08:39,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:08:39,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:08:39,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:39,378 INFO L225 Difference]: With dead ends: 1515 [2024-11-28 03:08:39,378 INFO L226 Difference]: Without dead ends: 689 [2024-11-28 03:08:39,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:08:39,381 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 125 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:39,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 499 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:08:39,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-28 03:08:39,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 685. [2024-11-28 03:08:39,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 588 states have (on average 1.4047619047619047) internal successors, (826), 592 states have internal predecessors, (826), 82 states have call successors, (82), 14 states have call predecessors, (82), 14 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-28 03:08:39,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 990 transitions. [2024-11-28 03:08:39,472 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 990 transitions. Word has length 151 [2024-11-28 03:08:39,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:39,473 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 990 transitions. [2024-11-28 03:08:39,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:08:39,473 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 990 transitions. [2024-11-28 03:08:39,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:08:39,478 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:39,479 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:39,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-28 03:08:39,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:39,679 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:39,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:39,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1531428778, now seen corresponding path program 1 times [2024-11-28 03:08:39,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:08:39,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420033231] [2024-11-28 03:08:39,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:39,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:39,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:08:39,682 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:08:39,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-28 03:08:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:39,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:08:39,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:08:39,946 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:08:39,946 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:08:39,946 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:08:39,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420033231] [2024-11-28 03:08:39,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420033231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:39,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:39,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:08:39,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022426282] [2024-11-28 03:08:39,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:39,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:08:39,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:08:39,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:08:39,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:08:39,948 INFO L87 Difference]: Start difference. First operand 685 states and 990 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:08:40,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:40,027 INFO L93 Difference]: Finished difference Result 1385 states and 2001 transitions. [2024-11-28 03:08:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:08:40,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:08:40,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:40,031 INFO L225 Difference]: With dead ends: 1385 [2024-11-28 03:08:40,031 INFO L226 Difference]: Without dead ends: 703 [2024-11-28 03:08:40,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:08:40,033 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:40,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 643 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:08:40,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2024-11-28 03:08:40,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2024-11-28 03:08:40,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 606 states have (on average 1.3927392739273927) internal successors, (844), 610 states have internal predecessors, (844), 82 states have call successors, (82), 14 states have call predecessors, (82), 14 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-28 03:08:40,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1008 transitions. [2024-11-28 03:08:40,112 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1008 transitions. Word has length 151 [2024-11-28 03:08:40,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:40,113 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 1008 transitions. [2024-11-28 03:08:40,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:08:40,113 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1008 transitions. [2024-11-28 03:08:40,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:08:40,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:40,115 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:40,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-28 03:08:40,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:40,316 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:40,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:40,317 INFO L85 PathProgramCache]: Analyzing trace with hash 667817279, now seen corresponding path program 1 times [2024-11-28 03:08:40,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:08:40,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366741297] [2024-11-28 03:08:40,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:40,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:40,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:08:40,319 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:08:40,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-28 03:08:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:40,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-28 03:08:40,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:08:40,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:08:41,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:08:41,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-28 03:08:42,988 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:42,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 60 [2024-11-28 03:08:43,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2024-11-28 03:08:43,594 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:43,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 43 [2024-11-28 03:08:43,803 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 464 proven. 42 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-28 03:08:43,804 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:08:44,629 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:08:44,629 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:08:44,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366741297] [2024-11-28 03:08:44,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366741297] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:08:44,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:08:44,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [27] total 33 [2024-11-28 03:08:44,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774885302] [2024-11-28 03:08:44,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:44,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:08:44,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:08:44,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:08:44,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=909, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:08:44,631 INFO L87 Difference]: Start difference. First operand 703 states and 1008 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:08:45,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:45,878 INFO L93 Difference]: Finished difference Result 1535 states and 2199 transitions. [2024-11-28 03:08:45,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:08:45,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:08:45,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:45,884 INFO L225 Difference]: With dead ends: 1535 [2024-11-28 03:08:45,884 INFO L226 Difference]: Without dead ends: 835 [2024-11-28 03:08:45,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=171, Invalid=1089, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 03:08:45,886 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 178 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:45,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 670 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:08:45,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-28 03:08:45,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 718. [2024-11-28 03:08:45,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 621 states have (on average 1.394524959742351) internal successors, (866), 625 states have internal predecessors, (866), 82 states have call successors, (82), 14 states have call predecessors, (82), 14 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-28 03:08:45,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1030 transitions. [2024-11-28 03:08:45,955 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1030 transitions. Word has length 151 [2024-11-28 03:08:45,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:45,955 INFO L471 AbstractCegarLoop]: Abstraction has 718 states and 1030 transitions. [2024-11-28 03:08:45,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:08:45,955 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1030 transitions. [2024-11-28 03:08:45,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:08:45,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:45,958 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:45,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-28 03:08:46,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:46,158 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:46,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:46,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1954615937, now seen corresponding path program 1 times [2024-11-28 03:08:46,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:08:46,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650950763] [2024-11-28 03:08:46,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:46,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:46,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:08:46,161 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:08:46,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-28 03:08:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:46,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:08:46,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:08:46,453 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:46,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-11-28 03:08:46,540 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:08:46,540 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:08:46,540 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:08:46,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650950763] [2024-11-28 03:08:46,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650950763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:46,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:46,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:08:46,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120148795] [2024-11-28 03:08:46,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:46,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:08:46,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:08:46,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:08:46,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:08:46,542 INFO L87 Difference]: Start difference. First operand 718 states and 1030 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:08:47,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:47,204 INFO L93 Difference]: Finished difference Result 1584 states and 2263 transitions. [2024-11-28 03:08:47,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:08:47,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:08:47,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:47,209 INFO L225 Difference]: With dead ends: 1584 [2024-11-28 03:08:47,209 INFO L226 Difference]: Without dead ends: 869 [2024-11-28 03:08:47,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:08:47,211 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 124 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:47,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 778 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:08:47,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2024-11-28 03:08:47,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 865. [2024-11-28 03:08:47,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 737 states have (on average 1.3772048846675713) internal successors, (1015), 743 states have internal predecessors, (1015), 108 states have call successors, (108), 19 states have call predecessors, (108), 19 states have return successors, (108), 102 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 03:08:47,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1231 transitions. [2024-11-28 03:08:47,307 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1231 transitions. Word has length 151 [2024-11-28 03:08:47,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:47,308 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1231 transitions. [2024-11-28 03:08:47,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:08:47,309 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1231 transitions. [2024-11-28 03:08:47,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:08:47,311 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:47,311 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:47,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-28 03:08:47,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:47,515 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:47,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:47,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2095164547, now seen corresponding path program 1 times [2024-11-28 03:08:47,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:08:47,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465473381] [2024-11-28 03:08:47,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:47,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:47,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:08:47,520 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:08:47,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-28 03:08:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:47,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-28 03:08:47,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:08:48,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-28 03:08:48,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 03:08:48,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 03:08:49,428 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:49,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-28 03:08:49,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2024-11-28 03:08:52,201 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:52,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 115 treesize of output 93 [2024-11-28 03:08:53,264 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:08:53,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 100 treesize of output 54 [2024-11-28 03:08:53,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2024-11-28 03:08:54,584 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 149 proven. 376 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-28 03:08:54,584 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:08:58,551 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:08:58,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465473381] [2024-11-28 03:08:58,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465473381] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:08:58,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [713323734] [2024-11-28 03:08:58,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:58,552 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:08:58,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:08:58,554 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:08:58,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-28 03:08:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:59,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 03:08:59,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:08:59,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 03:08:59,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-28 03:09:01,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2024-11-28 03:09:01,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2024-11-28 03:09:05,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:09:05,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 72 [2024-11-28 03:09:06,786 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:09:06,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 91 treesize of output 51 [2024-11-28 03:09:06,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2024-11-28 03:09:07,860 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 355 proven. 12 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-11-28 03:09:07,860 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:09:10,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2024-11-28 03:09:11,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [713323734] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:09:11,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:09:11,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 26] total 59 [2024-11-28 03:09:11,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136649740] [2024-11-28 03:09:11,159 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:09:11,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-28 03:09:11,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:09:11,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-28 03:09:11,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=607, Invalid=6703, Unknown=0, NotChecked=0, Total=7310 [2024-11-28 03:09:11,163 INFO L87 Difference]: Start difference. First operand 865 states and 1231 transitions. Second operand has 60 states, 53 states have (on average 2.7735849056603774) internal successors, (147), 53 states have internal predecessors, (147), 16 states have call successors, (38), 12 states have call predecessors, (38), 16 states have return successors, (38), 13 states have call predecessors, (38), 16 states have call successors, (38) [2024-11-28 03:09:40,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:40,333 INFO L93 Difference]: Finished difference Result 1903 states and 2691 transitions. [2024-11-28 03:09:40,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-28 03:09:40,334 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 53 states have (on average 2.7735849056603774) internal successors, (147), 53 states have internal predecessors, (147), 16 states have call successors, (38), 12 states have call predecessors, (38), 16 states have return successors, (38), 13 states have call predecessors, (38), 16 states have call successors, (38) Word has length 151 [2024-11-28 03:09:40,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:40,338 INFO L225 Difference]: With dead ends: 1903 [2024-11-28 03:09:40,339 INFO L226 Difference]: Without dead ends: 1041 [2024-11-28 03:09:40,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 286 SyntacticMatches, 4 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5746 ImplicationChecksByTransitivity, 29.0s TimeCoverageRelationStatistics Valid=2339, Invalid=16293, Unknown=0, NotChecked=0, Total=18632 [2024-11-28 03:09:40,345 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 1118 mSDsluCounter, 6175 mSDsCounter, 0 mSdLazyCounter, 5580 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 6345 SdHoareTripleChecker+Invalid, 5833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 5580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:40,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 6345 Invalid, 5833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [253 Valid, 5580 Invalid, 0 Unknown, 0 Unchecked, 17.1s Time] [2024-11-28 03:09:40,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-11-28 03:09:40,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 642. [2024-11-28 03:09:40,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 555 states have (on average 1.390990990990991) internal successors, (772), 558 states have internal predecessors, (772), 73 states have call successors, (73), 13 states have call predecessors, (73), 13 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 03:09:40,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 918 transitions. [2024-11-28 03:09:40,420 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 918 transitions. Word has length 151 [2024-11-28 03:09:40,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:40,421 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 918 transitions. [2024-11-28 03:09:40,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 53 states have (on average 2.7735849056603774) internal successors, (147), 53 states have internal predecessors, (147), 16 states have call successors, (38), 12 states have call predecessors, (38), 16 states have return successors, (38), 13 states have call predecessors, (38), 16 states have call successors, (38) [2024-11-28 03:09:40,421 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 918 transitions. [2024-11-28 03:09:40,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:09:40,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:40,423 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:40,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-28 03:09:40,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-11-28 03:09:40,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:09:40,824 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:40,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:40,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1703921983, now seen corresponding path program 1 times [2024-11-28 03:09:40,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:09:40,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881293734] [2024-11-28 03:09:40,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:40,825 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:09:40,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:09:40,827 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:09:40,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-28 03:09:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:41,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 03:09:41,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:09:41,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:09:41,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-28 03:09:41,775 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:09:41,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 47 [2024-11-28 03:09:42,305 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:09:42,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 64 [2024-11-28 03:09:42,623 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:09:42,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 35 [2024-11-28 03:09:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 351 proven. 15 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-28 03:09:42,692 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:09:42,952 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:09:42,953 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:09:42,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881293734] [2024-11-28 03:09:42,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [881293734] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:09:42,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:09:42,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2024-11-28 03:09:42,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232888685] [2024-11-28 03:09:42,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:09:42,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:09:42,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:09:42,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:09:42,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:09:42,954 INFO L87 Difference]: Start difference. First operand 642 states and 918 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:09:43,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:43,372 INFO L93 Difference]: Finished difference Result 1368 states and 1945 transitions. [2024-11-28 03:09:43,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:09:43,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:09:43,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:43,376 INFO L225 Difference]: With dead ends: 1368 [2024-11-28 03:09:43,377 INFO L226 Difference]: Without dead ends: 729 [2024-11-28 03:09:43,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:09:43,378 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 202 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:43,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 599 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:09:43,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-28 03:09:43,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 642. [2024-11-28 03:09:43,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 555 states have (on average 1.3855855855855856) internal successors, (769), 558 states have internal predecessors, (769), 73 states have call successors, (73), 13 states have call predecessors, (73), 13 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 03:09:43,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 915 transitions. [2024-11-28 03:09:43,444 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 915 transitions. Word has length 151 [2024-11-28 03:09:43,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:43,445 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 915 transitions. [2024-11-28 03:09:43,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:09:43,445 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 915 transitions. [2024-11-28 03:09:43,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:09:43,447 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:43,447 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:43,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-28 03:09:43,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:09:43,648 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:43,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:43,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1311181635, now seen corresponding path program 1 times [2024-11-28 03:09:43,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:09:43,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37454333] [2024-11-28 03:09:43,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:43,649 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:09:43,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:09:43,651 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:09:43,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-28 03:09:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:43,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:09:43,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:09:43,947 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:09:43,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-11-28 03:09:43,979 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:09:43,979 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:09:43,979 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:09:43,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37454333] [2024-11-28 03:09:43,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37454333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:09:43,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:09:43,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:09:43,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309144966] [2024-11-28 03:09:43,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:09:43,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:09:43,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:09:43,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:09:43,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:09:43,981 INFO L87 Difference]: Start difference. First operand 642 states and 915 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:09:44,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:44,447 INFO L93 Difference]: Finished difference Result 1437 states and 2038 transitions. [2024-11-28 03:09:44,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:09:44,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:09:44,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:44,451 INFO L225 Difference]: With dead ends: 1437 [2024-11-28 03:09:44,451 INFO L226 Difference]: Without dead ends: 798 [2024-11-28 03:09:44,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:09:44,452 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 95 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:44,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 732 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:09:44,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-28 03:09:44,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 643. [2024-11-28 03:09:44,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 556 states have (on average 1.381294964028777) internal successors, (768), 559 states have internal predecessors, (768), 73 states have call successors, (73), 13 states have call predecessors, (73), 13 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 03:09:44,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 914 transitions. [2024-11-28 03:09:44,546 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 914 transitions. Word has length 151 [2024-11-28 03:09:44,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:44,550 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 914 transitions. [2024-11-28 03:09:44,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:09:44,550 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 914 transitions. [2024-11-28 03:09:44,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:09:44,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:44,554 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:44,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-28 03:09:44,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:09:44,754 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:44,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:44,755 INFO L85 PathProgramCache]: Analyzing trace with hash 724375621, now seen corresponding path program 1 times [2024-11-28 03:09:44,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:09:44,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23660306] [2024-11-28 03:09:44,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:44,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:09:44,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:09:44,757 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:09:44,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-28 03:09:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:45,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 03:09:45,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:09:45,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:09:45,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:09:46,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-28 03:09:46,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2024-11-28 03:09:48,048 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:09:48,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 72 [2024-11-28 03:09:48,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2024-11-28 03:09:49,191 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:09:49,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 79 treesize of output 37 [2024-11-28 03:09:49,467 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 474 proven. 48 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-28 03:09:49,467 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:09:50,609 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:09:50,609 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:09:50,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23660306] [2024-11-28 03:09:50,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [23660306] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:09:50,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:09:50,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [31] total 39 [2024-11-28 03:09:50,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337702532] [2024-11-28 03:09:50,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:09:50,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:09:50,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:09:50,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:09:50,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1280, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 03:09:50,611 INFO L87 Difference]: Start difference. First operand 643 states and 914 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:09:53,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:53,602 INFO L93 Difference]: Finished difference Result 1436 states and 2040 transitions. [2024-11-28 03:09:53,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:09:53,603 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:09:53,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:53,606 INFO L225 Difference]: With dead ends: 1436 [2024-11-28 03:09:53,606 INFO L226 Difference]: Without dead ends: 796 [2024-11-28 03:09:53,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=247, Invalid=1559, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 03:09:53,608 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 264 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:53,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1087 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:09:53,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-11-28 03:09:53,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 672. [2024-11-28 03:09:53,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 585 states have (on average 1.3897435897435897) internal successors, (813), 588 states have internal predecessors, (813), 73 states have call successors, (73), 13 states have call predecessors, (73), 13 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 03:09:53,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 959 transitions. [2024-11-28 03:09:53,672 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 959 transitions. Word has length 151 [2024-11-28 03:09:53,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:53,673 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 959 transitions. [2024-11-28 03:09:53,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:09:53,673 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 959 transitions. [2024-11-28 03:09:53,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:09:53,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:53,674 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:09:53,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2024-11-28 03:09:53,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:09:53,875 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:53,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:53,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1765153341, now seen corresponding path program 1 times [2024-11-28 03:09:53,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:09:53,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341123332] [2024-11-28 03:09:53,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:53,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:09:53,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:09:53,878 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:09:53,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-28 03:09:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:09:54,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-28 03:09:54,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:09:55,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-28 03:09:55,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 03:09:55,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 03:09:55,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:09:55,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-28 03:09:56,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2024-11-28 03:09:57,740 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:09:57,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 62 [2024-11-28 03:09:58,115 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:09:58,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 107 treesize of output 96 [2024-11-28 03:09:58,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 56 [2024-11-28 03:09:58,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:09:58,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 107 treesize of output 51 [2024-11-28 03:09:59,076 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 149 proven. 376 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-28 03:09:59,076 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:01,377 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:10:01,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341123332] [2024-11-28 03:10:01,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341123332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:01,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1219021126] [2024-11-28 03:10:01,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:01,377 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:10:01,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:10:01,379 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:10:01,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-28 03:10:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:02,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 03:10:02,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:02,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-11-28 03:10:03,579 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:03,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 36 [2024-11-28 03:10:04,732 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:04,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 44 [2024-11-28 03:10:05,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 44 [2024-11-28 03:10:07,369 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:07,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 67 [2024-11-28 03:10:07,958 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:07,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 90 treesize of output 85 [2024-11-28 03:10:08,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 49 [2024-11-28 03:10:08,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:08,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 52 [2024-11-28 03:10:09,010 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 377 proven. 24 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-11-28 03:10:09,010 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:09,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 61 [2024-11-28 03:10:09,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1219021126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:09,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:10:09,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 24] total 55 [2024-11-28 03:10:09,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994587267] [2024-11-28 03:10:09,546 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:10:09,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-28 03:10:09,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:10:09,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-28 03:10:09,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=4328, Unknown=0, NotChecked=0, Total=4830 [2024-11-28 03:10:09,550 INFO L87 Difference]: Start difference. First operand 672 states and 959 transitions. Second operand has 56 states, 48 states have (on average 3.1041666666666665) internal successors, (149), 51 states have internal predecessors, (149), 17 states have call successors, (38), 11 states have call predecessors, (38), 17 states have return successors, (38), 12 states have call predecessors, (38), 17 states have call successors, (38) [2024-11-28 03:10:26,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:26,966 INFO L93 Difference]: Finished difference Result 1484 states and 2104 transitions. [2024-11-28 03:10:26,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-28 03:10:26,967 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 48 states have (on average 3.1041666666666665) internal successors, (149), 51 states have internal predecessors, (149), 17 states have call successors, (38), 11 states have call predecessors, (38), 17 states have return successors, (38), 12 states have call predecessors, (38), 17 states have call successors, (38) Word has length 151 [2024-11-28 03:10:26,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:26,972 INFO L225 Difference]: With dead ends: 1484 [2024-11-28 03:10:26,972 INFO L226 Difference]: Without dead ends: 1059 [2024-11-28 03:10:26,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 303 SyntacticMatches, 3 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4414 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=2019, Invalid=12261, Unknown=0, NotChecked=0, Total=14280 [2024-11-28 03:10:26,976 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 2308 mSDsluCounter, 5159 mSDsCounter, 0 mSdLazyCounter, 4036 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 5406 SdHoareTripleChecker+Invalid, 4514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 4036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:26,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2308 Valid, 5406 Invalid, 4514 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [478 Valid, 4036 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2024-11-28 03:10:26,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2024-11-28 03:10:27,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 672. [2024-11-28 03:10:27,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 585 states have (on average 1.3897435897435897) internal successors, (813), 588 states have internal predecessors, (813), 73 states have call successors, (73), 13 states have call predecessors, (73), 13 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 03:10:27,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 959 transitions. [2024-11-28 03:10:27,057 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 959 transitions. Word has length 151 [2024-11-28 03:10:27,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:27,058 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 959 transitions. [2024-11-28 03:10:27,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 48 states have (on average 3.1041666666666665) internal successors, (149), 51 states have internal predecessors, (149), 17 states have call successors, (38), 11 states have call predecessors, (38), 17 states have return successors, (38), 12 states have call predecessors, (38), 17 states have call successors, (38) [2024-11-28 03:10:27,058 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 959 transitions. [2024-11-28 03:10:27,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:10:27,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:27,060 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:27,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-11-28 03:10:27,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-28 03:10:27,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:27,461 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:27,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:27,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1093137167, now seen corresponding path program 1 times [2024-11-28 03:10:27,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:10:27,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613716503] [2024-11-28 03:10:27,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:27,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:27,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:10:27,464 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:10:27,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-28 03:10:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:27,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 03:10:27,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:27,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:10:28,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:10:29,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-28 03:10:30,013 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:30,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 39 [2024-11-28 03:10:30,420 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:30,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 25 [2024-11-28 03:10:30,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 38 [2024-11-28 03:10:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 454 proven. 48 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-28 03:10:30,555 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:30,938 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:10:30,938 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:10:30,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613716503] [2024-11-28 03:10:30,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613716503] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:30,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:10:30,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [21] total 25 [2024-11-28 03:10:30,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74830612] [2024-11-28 03:10:30,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:30,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:10:30,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:10:30,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:10:30,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=500, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:10:30,940 INFO L87 Difference]: Start difference. First operand 672 states and 959 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:10:31,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:31,442 INFO L93 Difference]: Finished difference Result 1583 states and 2265 transitions. [2024-11-28 03:10:31,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:10:31,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:10:31,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:31,455 INFO L225 Difference]: With dead ends: 1583 [2024-11-28 03:10:31,455 INFO L226 Difference]: Without dead ends: 914 [2024-11-28 03:10:31,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 276 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:10:31,458 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 202 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:31,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 479 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:10:31,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2024-11-28 03:10:31,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 789. [2024-11-28 03:10:31,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 692 states have (on average 1.4017341040462428) internal successors, (970), 696 states have internal predecessors, (970), 82 states have call successors, (82), 14 states have call predecessors, (82), 14 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-28 03:10:31,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1134 transitions. [2024-11-28 03:10:31,540 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1134 transitions. Word has length 151 [2024-11-28 03:10:31,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:31,540 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1134 transitions. [2024-11-28 03:10:31,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:10:31,541 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1134 transitions. [2024-11-28 03:10:31,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:10:31,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:31,542 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:31,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-11-28 03:10:31,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:31,743 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:31,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:31,743 INFO L85 PathProgramCache]: Analyzing trace with hash -2104254417, now seen corresponding path program 1 times [2024-11-28 03:10:31,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:10:31,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413351821] [2024-11-28 03:10:31,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:31,744 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:31,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:10:31,746 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:10:31,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-28 03:10:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:32,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 03:10:32,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:32,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:10:32,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-28 03:10:33,175 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:33,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2024-11-28 03:10:33,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:33,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 49 [2024-11-28 03:10:34,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:34,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 83 [2024-11-28 03:10:36,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2024-11-28 03:10:36,553 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:36,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 102 treesize of output 48 [2024-11-28 03:10:36,920 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 458 proven. 63 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-28 03:10:36,921 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:38,282 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:10:38,282 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:10:38,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413351821] [2024-11-28 03:10:38,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413351821] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:38,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:10:38,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [32] total 42 [2024-11-28 03:10:38,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478589893] [2024-11-28 03:10:38,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:38,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:10:38,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:10:38,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:10:38,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1507, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 03:10:38,284 INFO L87 Difference]: Start difference. First operand 789 states and 1134 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:10:41,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:41,239 INFO L93 Difference]: Finished difference Result 1992 states and 2860 transitions. [2024-11-28 03:10:41,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:10:41,240 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:10:41,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:41,243 INFO L225 Difference]: With dead ends: 1992 [2024-11-28 03:10:41,243 INFO L226 Difference]: Without dead ends: 1206 [2024-11-28 03:10:41,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=288, Invalid=2262, Unknown=0, NotChecked=0, Total=2550 [2024-11-28 03:10:41,245 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 503 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:41,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1737 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 03:10:41,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-11-28 03:10:41,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 831. [2024-11-28 03:10:41,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 734 states have (on average 1.4073569482288828) internal successors, (1033), 738 states have internal predecessors, (1033), 82 states have call successors, (82), 14 states have call predecessors, (82), 14 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-28 03:10:41,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1197 transitions. [2024-11-28 03:10:41,330 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1197 transitions. Word has length 151 [2024-11-28 03:10:41,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:41,331 INFO L471 AbstractCegarLoop]: Abstraction has 831 states and 1197 transitions. [2024-11-28 03:10:41,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:10:41,331 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1197 transitions. [2024-11-28 03:10:41,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:10:41,333 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:41,333 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:41,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-28 03:10:41,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:41,533 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:41,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:41,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1846088979, now seen corresponding path program 1 times [2024-11-28 03:10:41,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:10:41,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547878282] [2024-11-28 03:10:41,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:41,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:41,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:10:41,536 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:10:41,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-28 03:10:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:41,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 03:10:41,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:42,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-28 03:10:42,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 03:10:42,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-28 03:10:43,621 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:43,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 31 [2024-11-28 03:10:43,942 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:43,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 31 [2024-11-28 03:10:44,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2024-11-28 03:10:45,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:45,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2024-11-28 03:10:45,869 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:45,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 42 [2024-11-28 03:10:46,080 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 126 proven. 379 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-28 03:10:46,081 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:10:46,838 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:10:46,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547878282] [2024-11-28 03:10:46,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547878282] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:46,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:10:46,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [30] total 37 [2024-11-28 03:10:46,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577276934] [2024-11-28 03:10:46,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:46,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:10:46,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:10:46,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:10:46,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1182, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 03:10:46,839 INFO L87 Difference]: Start difference. First operand 831 states and 1197 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:10:48,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:48,323 INFO L93 Difference]: Finished difference Result 2388 states and 3429 transitions. [2024-11-28 03:10:48,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:10:48,324 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:10:48,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:48,328 INFO L225 Difference]: With dead ends: 2388 [2024-11-28 03:10:48,328 INFO L226 Difference]: Without dead ends: 1560 [2024-11-28 03:10:48,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 265 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=190, Invalid=1450, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 03:10:48,330 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 486 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:48,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 1018 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:10:48,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2024-11-28 03:10:48,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1183. [2024-11-28 03:10:48,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1042 states have (on average 1.40978886756238) internal successors, (1469), 1050 states have internal predecessors, (1469), 122 states have call successors, (122), 18 states have call predecessors, (122), 18 states have return successors, (122), 114 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-28 03:10:48,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1713 transitions. [2024-11-28 03:10:48,452 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1713 transitions. Word has length 151 [2024-11-28 03:10:48,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:48,454 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1713 transitions. [2024-11-28 03:10:48,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:10:48,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1713 transitions. [2024-11-28 03:10:48,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:10:48,456 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:48,456 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:48,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-11-28 03:10:48,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:48,656 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:48,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:48,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1971858161, now seen corresponding path program 1 times [2024-11-28 03:10:48,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:10:48,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990324948] [2024-11-28 03:10:48,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:48,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:48,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:10:48,660 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:10:48,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-28 03:10:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:49,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 03:10:49,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:49,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:10:49,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-28 03:10:50,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:50,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2024-11-28 03:10:50,434 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:50,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 54 [2024-11-28 03:10:51,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:51,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 100 treesize of output 88 [2024-11-28 03:10:51,888 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:51,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 101 treesize of output 98 [2024-11-28 03:10:52,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2024-11-28 03:10:52,995 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:52,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 109 treesize of output 57 [2024-11-28 03:10:53,294 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 458 proven. 63 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-28 03:10:53,294 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:54,227 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:10:54,227 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:10:54,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990324948] [2024-11-28 03:10:54,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990324948] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:54,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:10:54,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [31] total 39 [2024-11-28 03:10:54,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568704298] [2024-11-28 03:10:54,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:54,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:10:54,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:10:54,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:10:54,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1292, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 03:10:54,229 INFO L87 Difference]: Start difference. First operand 1183 states and 1713 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:10:56,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:56,293 INFO L93 Difference]: Finished difference Result 2112 states and 3056 transitions. [2024-11-28 03:10:56,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:10:56,294 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:10:56,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:56,299 INFO L225 Difference]: With dead ends: 2112 [2024-11-28 03:10:56,299 INFO L226 Difference]: Without dead ends: 1273 [2024-11-28 03:10:56,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=231, Invalid=1839, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 03:10:56,303 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 140 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:56,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1677 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:10:56,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2024-11-28 03:10:56,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 1183. [2024-11-28 03:10:56,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1042 states have (on average 1.40978886756238) internal successors, (1469), 1050 states have internal predecessors, (1469), 122 states have call successors, (122), 18 states have call predecessors, (122), 18 states have return successors, (122), 114 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-28 03:10:56,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1713 transitions. [2024-11-28 03:10:56,417 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1713 transitions. Word has length 151 [2024-11-28 03:10:56,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:56,418 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1713 transitions. [2024-11-28 03:10:56,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:10:56,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1713 transitions. [2024-11-28 03:10:56,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:10:56,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:56,420 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:56,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-11-28 03:10:56,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:56,621 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:56,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:56,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2064943697, now seen corresponding path program 1 times [2024-11-28 03:10:56,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:10:56,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621421514] [2024-11-28 03:10:56,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:56,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:56,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:10:56,623 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:10:56,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-28 03:10:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:56,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 03:10:56,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:57,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:10:57,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-28 03:10:57,339 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:57,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2024-11-28 03:10:57,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:57,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 39 [2024-11-28 03:10:57,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:57,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 48 [2024-11-28 03:10:58,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:58,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 59 [2024-11-28 03:10:58,435 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:10:58,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 36 [2024-11-28 03:10:58,507 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 356 proven. 27 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-11-28 03:10:58,507 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:58,802 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:10:58,802 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:10:58,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621421514] [2024-11-28 03:10:58,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621421514] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:58,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:10:58,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2024-11-28 03:10:58,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303467246] [2024-11-28 03:10:58,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:58,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:10:58,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:10:58,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:10:58,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:10:58,804 INFO L87 Difference]: Start difference. First operand 1183 states and 1713 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:10:59,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:59,265 INFO L93 Difference]: Finished difference Result 2098 states and 3030 transitions. [2024-11-28 03:10:59,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:10:59,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:10:59,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:59,276 INFO L225 Difference]: With dead ends: 2098 [2024-11-28 03:10:59,276 INFO L226 Difference]: Without dead ends: 1259 [2024-11-28 03:10:59,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:10:59,280 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 202 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:59,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 632 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:10:59,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2024-11-28 03:10:59,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1150. [2024-11-28 03:10:59,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1009 states have (on average 1.402378592666006) internal successors, (1415), 1017 states have internal predecessors, (1415), 122 states have call successors, (122), 18 states have call predecessors, (122), 18 states have return successors, (122), 114 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-28 03:10:59,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1659 transitions. [2024-11-28 03:10:59,392 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1659 transitions. Word has length 151 [2024-11-28 03:10:59,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:59,392 INFO L471 AbstractCegarLoop]: Abstraction has 1150 states and 1659 transitions. [2024-11-28 03:10:59,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:10:59,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1659 transitions. [2024-11-28 03:10:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:10:59,394 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:59,395 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:59,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-11-28 03:10:59,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:59,595 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:59,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:59,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1963705807, now seen corresponding path program 1 times [2024-11-28 03:10:59,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:10:59,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278467817] [2024-11-28 03:10:59,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:59,596 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:10:59,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:10:59,598 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:10:59,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-28 03:10:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:59,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-28 03:10:59,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:00,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:11:00,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 03:11:00,706 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:00,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-28 03:11:01,061 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:01,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-11-28 03:11:01,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2024-11-28 03:11:02,055 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:02,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 75 [2024-11-28 03:11:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 458 proven. 63 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-28 03:11:02,456 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:11:03,202 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:11:03,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278467817] [2024-11-28 03:11:03,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278467817] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:03,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:11:03,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [25] total 31 [2024-11-28 03:11:03,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483270964] [2024-11-28 03:11:03,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:03,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:11:03,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:11:03,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:11:03,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=802, Unknown=0, NotChecked=0, Total=930 [2024-11-28 03:11:03,204 INFO L87 Difference]: Start difference. First operand 1150 states and 1659 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:11:04,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:04,857 INFO L93 Difference]: Finished difference Result 2793 states and 4012 transitions. [2024-11-28 03:11:04,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:11:04,858 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:11:04,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:04,865 INFO L225 Difference]: With dead ends: 2793 [2024-11-28 03:11:04,865 INFO L226 Difference]: Without dead ends: 1646 [2024-11-28 03:11:04,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=154, Invalid=968, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:11:04,867 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 325 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:04,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 995 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:11:04,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2024-11-28 03:11:04,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1056. [2024-11-28 03:11:04,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 936 states have (on average 1.4113247863247864) internal successors, (1321), 942 states have internal predecessors, (1321), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-28 03:11:04,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1525 transitions. [2024-11-28 03:11:04,962 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1525 transitions. Word has length 151 [2024-11-28 03:11:04,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:04,963 INFO L471 AbstractCegarLoop]: Abstraction has 1056 states and 1525 transitions. [2024-11-28 03:11:04,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:11:04,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1525 transitions. [2024-11-28 03:11:04,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:11:04,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:04,965 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:04,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-11-28 03:11:05,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:05,166 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:05,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:05,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1705540369, now seen corresponding path program 1 times [2024-11-28 03:11:05,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:11:05,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473807722] [2024-11-28 03:11:05,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:05,167 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:05,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:11:05,169 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:11:05,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-28 03:11:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:05,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-28 03:11:05,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:06,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-28 03:11:06,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 03:11:06,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-28 03:11:07,088 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:07,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2024-11-28 03:11:07,511 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:07,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 39 [2024-11-28 03:11:08,724 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:08,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 60 [2024-11-28 03:11:09,161 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 126 proven. 379 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-28 03:11:09,161 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:10,849 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:11:10,849 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:11:10,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473807722] [2024-11-28 03:11:10,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473807722] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:10,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:11:10,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [28] total 40 [2024-11-28 03:11:10,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87478731] [2024-11-28 03:11:10,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:10,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:11:10,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:11:10,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:11:10,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1413, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 03:11:10,850 INFO L87 Difference]: Start difference. First operand 1056 states and 1525 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:11:14,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:14,216 INFO L93 Difference]: Finished difference Result 2354 states and 3387 transitions. [2024-11-28 03:11:14,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:11:14,217 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:11:14,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:14,223 INFO L225 Difference]: With dead ends: 2354 [2024-11-28 03:11:14,223 INFO L226 Difference]: Without dead ends: 1301 [2024-11-28 03:11:14,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=219, Invalid=2133, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 03:11:14,226 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 299 mSDsluCounter, 1892 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:14,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 2129 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:11:14,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2024-11-28 03:11:14,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1058. [2024-11-28 03:11:14,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 938 states have (on average 1.4104477611940298) internal successors, (1323), 944 states have internal predecessors, (1323), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-28 03:11:14,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1527 transitions. [2024-11-28 03:11:14,343 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1527 transitions. Word has length 151 [2024-11-28 03:11:14,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:14,347 INFO L471 AbstractCegarLoop]: Abstraction has 1058 states and 1527 transitions. [2024-11-28 03:11:14,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:11:14,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1527 transitions. [2024-11-28 03:11:14,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:11:14,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:14,351 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:14,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-11-28 03:11:14,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:14,551 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:14,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:14,552 INFO L85 PathProgramCache]: Analyzing trace with hash 2112406771, now seen corresponding path program 1 times [2024-11-28 03:11:14,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:11:14,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050184987] [2024-11-28 03:11:14,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:14,553 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:14,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:11:14,555 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:11:14,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-28 03:11:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:14,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 03:11:14,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:14,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:11:15,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 03:11:15,156 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:15,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-28 03:11:15,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:15,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-28 03:11:15,473 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:15,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 32 [2024-11-28 03:11:15,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:15,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 52 [2024-11-28 03:11:15,702 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:15,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 29 [2024-11-28 03:11:15,791 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 356 proven. 27 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-11-28 03:11:15,791 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:16,089 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:11:16,089 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:11:16,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050184987] [2024-11-28 03:11:16,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050184987] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:16,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:11:16,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-11-28 03:11:16,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129709798] [2024-11-28 03:11:16,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:16,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:11:16,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:11:16,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:11:16,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:11:16,091 INFO L87 Difference]: Start difference. First operand 1058 states and 1527 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:11:16,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:16,624 INFO L93 Difference]: Finished difference Result 2106 states and 3025 transitions. [2024-11-28 03:11:16,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:11:16,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:11:16,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:16,631 INFO L225 Difference]: With dead ends: 2106 [2024-11-28 03:11:16,631 INFO L226 Difference]: Without dead ends: 1394 [2024-11-28 03:11:16,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:11:16,633 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 114 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:16,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 628 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:11:16,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-11-28 03:11:16,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1042. [2024-11-28 03:11:16,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 922 states have (on average 1.4045553145336225) internal successors, (1295), 928 states have internal predecessors, (1295), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-28 03:11:16,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1499 transitions. [2024-11-28 03:11:16,743 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1499 transitions. Word has length 151 [2024-11-28 03:11:16,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:16,744 INFO L471 AbstractCegarLoop]: Abstraction has 1042 states and 1499 transitions. [2024-11-28 03:11:16,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:11:16,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1499 transitions. [2024-11-28 03:11:16,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:11:16,746 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:16,746 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:16,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-11-28 03:11:16,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:16,947 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:16,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:16,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1924395087, now seen corresponding path program 1 times [2024-11-28 03:11:16,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:11:16,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301788985] [2024-11-28 03:11:16,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:16,948 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:16,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:11:16,949 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:11:16,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-28 03:11:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:17,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 03:11:17,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:17,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:11:18,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-28 03:11:18,442 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:18,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 42 [2024-11-28 03:11:19,227 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:19,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 61 [2024-11-28 03:11:19,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:19,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 76 [2024-11-28 03:11:20,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2024-11-28 03:11:20,294 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:20,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 87 treesize of output 39 [2024-11-28 03:11:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 464 proven. 54 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-28 03:11:20,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:21,350 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:11:21,351 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:11:21,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301788985] [2024-11-28 03:11:21,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301788985] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:21,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:11:21,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [26] total 33 [2024-11-28 03:11:21,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151603401] [2024-11-28 03:11:21,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:21,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:11:21,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:11:21,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:11:21,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=916, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:11:21,353 INFO L87 Difference]: Start difference. First operand 1042 states and 1499 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:11:23,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:23,105 INFO L93 Difference]: Finished difference Result 1929 states and 2768 transitions. [2024-11-28 03:11:23,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:11:23,106 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:11:23,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:23,112 INFO L225 Difference]: With dead ends: 1929 [2024-11-28 03:11:23,112 INFO L226 Difference]: Without dead ends: 1233 [2024-11-28 03:11:23,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=172, Invalid=1310, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 03:11:23,114 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 115 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:23,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1823 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:11:23,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2024-11-28 03:11:23,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1025. [2024-11-28 03:11:23,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 905 states have (on average 1.4022099447513812) internal successors, (1269), 911 states have internal predecessors, (1269), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-28 03:11:23,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1473 transitions. [2024-11-28 03:11:23,206 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1473 transitions. Word has length 151 [2024-11-28 03:11:23,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:23,206 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1473 transitions. [2024-11-28 03:11:23,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:11:23,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1473 transitions. [2024-11-28 03:11:23,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:11:23,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:23,208 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:23,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-28 03:11:23,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:23,409 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:23,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:23,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1278602095, now seen corresponding path program 1 times [2024-11-28 03:11:23,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:11:23,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309698829] [2024-11-28 03:11:23,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:23,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:23,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:11:23,412 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:11:23,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-11-28 03:11:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:23,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-28 03:11:23,812 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:23,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:11:24,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 03:11:24,636 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:24,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-28 03:11:25,410 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:25,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 55 [2024-11-28 03:11:26,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-28 03:11:26,747 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:26,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 105 treesize of output 87 [2024-11-28 03:11:28,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:28,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 115 treesize of output 55 [2024-11-28 03:11:28,805 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 467 proven. 57 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-28 03:11:28,805 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:30,450 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:11:30,451 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:11:30,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309698829] [2024-11-28 03:11:30,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309698829] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:30,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:11:30,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [36] total 46 [2024-11-28 03:11:30,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070481455] [2024-11-28 03:11:30,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:30,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:11:30,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:11:30,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:11:30,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1869, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 03:11:30,452 INFO L87 Difference]: Start difference. First operand 1025 states and 1473 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:11:33,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:33,862 INFO L93 Difference]: Finished difference Result 2457 states and 3510 transitions. [2024-11-28 03:11:33,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:11:33,863 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:11:33,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:33,868 INFO L225 Difference]: With dead ends: 2457 [2024-11-28 03:11:33,868 INFO L226 Difference]: Without dead ends: 1435 [2024-11-28 03:11:33,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 845 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=277, Invalid=2693, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 03:11:33,871 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 347 mSDsluCounter, 1732 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:33,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1960 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 03:11:33,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2024-11-28 03:11:33,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1044. [2024-11-28 03:11:33,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 924 states have (on average 1.4047619047619047) internal successors, (1298), 930 states have internal predecessors, (1298), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-28 03:11:33,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1502 transitions. [2024-11-28 03:11:33,959 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1502 transitions. Word has length 151 [2024-11-28 03:11:33,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:33,959 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1502 transitions. [2024-11-28 03:11:33,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:11:33,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1502 transitions. [2024-11-28 03:11:33,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:11:33,960 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:33,961 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:33,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-11-28 03:11:34,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:34,161 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:34,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:34,162 INFO L85 PathProgramCache]: Analyzing trace with hash 267484845, now seen corresponding path program 1 times [2024-11-28 03:11:34,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:11:34,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905903480] [2024-11-28 03:11:34,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:34,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:34,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:11:34,164 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:11:34,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-11-28 03:11:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:34,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 03:11:34,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:34,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:11:35,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:11:35,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-28 03:11:36,669 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:36,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 38 [2024-11-28 03:11:36,869 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:36,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 24 [2024-11-28 03:11:36,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2024-11-28 03:11:36,964 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 454 proven. 48 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-28 03:11:36,964 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:37,317 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:11:37,317 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:11:37,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905903480] [2024-11-28 03:11:37,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905903480] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:37,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:11:37,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [21] total 25 [2024-11-28 03:11:37,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998521388] [2024-11-28 03:11:37,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:37,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:11:37,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:11:37,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:11:37,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=500, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:11:37,319 INFO L87 Difference]: Start difference. First operand 1044 states and 1502 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:11:37,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:37,843 INFO L93 Difference]: Finished difference Result 2158 states and 3095 transitions. [2024-11-28 03:11:37,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:11:37,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-28 03:11:37,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:37,849 INFO L225 Difference]: With dead ends: 2158 [2024-11-28 03:11:37,849 INFO L226 Difference]: Without dead ends: 1117 [2024-11-28 03:11:37,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:11:37,852 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 198 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:37,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 578 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:11:37,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2024-11-28 03:11:37,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 922. [2024-11-28 03:11:37,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 820 states have (on average 1.4060975609756097) internal successors, (1153), 824 states have internal predecessors, (1153), 84 states have call successors, (84), 17 states have call predecessors, (84), 17 states have return successors, (84), 80 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-28 03:11:37,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1321 transitions. [2024-11-28 03:11:37,932 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1321 transitions. Word has length 151 [2024-11-28 03:11:37,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:37,933 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1321 transitions. [2024-11-28 03:11:37,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:11:37,933 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1321 transitions. [2024-11-28 03:11:37,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:11:37,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:37,934 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:37,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-11-28 03:11:38,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:38,135 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:38,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:38,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1059747377, now seen corresponding path program 1 times [2024-11-28 03:11:38,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:11:38,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186679665] [2024-11-28 03:11:38,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:38,136 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:38,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:11:38,138 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:11:38,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-28 03:11:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:38,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 03:11:38,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:38,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:11:38,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:11:38,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 03:11:38,784 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:38,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-28 03:11:39,137 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:39,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 65 [2024-11-28 03:11:39,233 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:39,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 80 [2024-11-28 03:11:39,771 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:39,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 103 treesize of output 47 [2024-11-28 03:11:39,906 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 03:11:39,906 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:11:39,906 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:11:39,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186679665] [2024-11-28 03:11:39,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186679665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:39,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:39,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 03:11:39,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180516155] [2024-11-28 03:11:39,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:39,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:11:39,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:11:39,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:11:39,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:11:39,908 INFO L87 Difference]: Start difference. First operand 922 states and 1321 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 03:11:43,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:43,198 INFO L93 Difference]: Finished difference Result 1867 states and 2647 transitions. [2024-11-28 03:11:43,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:11:43,199 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 151 [2024-11-28 03:11:43,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:43,206 INFO L225 Difference]: With dead ends: 1867 [2024-11-28 03:11:43,206 INFO L226 Difference]: Without dead ends: 1289 [2024-11-28 03:11:43,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:11:43,208 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 493 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:43,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1839 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 03:11:43,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2024-11-28 03:11:43,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 906. [2024-11-28 03:11:43,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 804 states have (on average 1.4029850746268657) internal successors, (1128), 808 states have internal predecessors, (1128), 84 states have call successors, (84), 17 states have call predecessors, (84), 17 states have return successors, (84), 80 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-28 03:11:43,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1296 transitions. [2024-11-28 03:11:43,308 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1296 transitions. Word has length 151 [2024-11-28 03:11:43,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:43,309 INFO L471 AbstractCegarLoop]: Abstraction has 906 states and 1296 transitions. [2024-11-28 03:11:43,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-28 03:11:43,309 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1296 transitions. [2024-11-28 03:11:43,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:11:43,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:43,310 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:43,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-11-28 03:11:43,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:43,510 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:43,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:43,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1677316143, now seen corresponding path program 1 times [2024-11-28 03:11:43,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:11:43,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120998973] [2024-11-28 03:11:43,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:43,511 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:43,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:11:43,513 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:11:43,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-11-28 03:11:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:43,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 03:11:43,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:44,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:11:44,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 03:11:44,761 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:44,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-28 03:11:45,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:45,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 41 [2024-11-28 03:11:45,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-28 03:11:46,159 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:46,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 60 [2024-11-28 03:11:46,513 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 467 proven. 57 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-28 03:11:46,514 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:48,787 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:11:48,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120998973] [2024-11-28 03:11:48,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120998973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:48,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1979246592] [2024-11-28 03:11:48,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:48,788 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:11:48,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:11:48,790 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:11:48,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-11-28 03:11:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:49,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 03:11:49,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:50,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:11:51,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2024-11-28 03:11:52,105 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:52,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 29 [2024-11-28 03:11:52,564 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:52,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 29 [2024-11-28 03:11:52,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-28 03:11:53,958 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:11:53,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 63 [2024-11-28 03:11:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 423 proven. 45 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-28 03:11:54,590 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:55,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1979246592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:55,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:11:55,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 21] total 47 [2024-11-28 03:11:55,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201371679] [2024-11-28 03:11:55,372 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:11:55,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-28 03:11:55,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:11:55,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-28 03:11:55,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=3197, Unknown=0, NotChecked=0, Total=3660 [2024-11-28 03:11:55,375 INFO L87 Difference]: Start difference. First operand 906 states and 1296 transitions. Second operand has 47 states, 39 states have (on average 3.641025641025641) internal successors, (142), 45 states have internal predecessors, (142), 17 states have call successors, (38), 10 states have call predecessors, (38), 17 states have return successors, (38), 11 states have call predecessors, (38), 17 states have call successors, (38) [2024-11-28 03:12:07,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:07,592 INFO L93 Difference]: Finished difference Result 2015 states and 2828 transitions. [2024-11-28 03:12:07,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-28 03:12:07,593 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 39 states have (on average 3.641025641025641) internal successors, (142), 45 states have internal predecessors, (142), 17 states have call successors, (38), 10 states have call predecessors, (38), 17 states have return successors, (38), 11 states have call predecessors, (38), 17 states have call successors, (38) Word has length 151 [2024-11-28 03:12:07,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:07,599 INFO L225 Difference]: With dead ends: 2015 [2024-11-28 03:12:07,599 INFO L226 Difference]: Without dead ends: 1112 [2024-11-28 03:12:07,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 354 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3413 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=1591, Invalid=9965, Unknown=0, NotChecked=0, Total=11556 [2024-11-28 03:12:07,603 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 883 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 2831 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 3017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 2831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:07,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 2454 Invalid, 3017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 2831 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-28 03:12:07,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2024-11-28 03:12:07,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 630. [2024-11-28 03:12:07,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 576 states have (on average 1.4288194444444444) internal successors, (823), 576 states have internal predecessors, (823), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:12:07,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 899 transitions. [2024-11-28 03:12:07,751 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 899 transitions. Word has length 151 [2024-11-28 03:12:07,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:07,751 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 899 transitions. [2024-11-28 03:12:07,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 39 states have (on average 3.641025641025641) internal successors, (142), 45 states have internal predecessors, (142), 17 states have call successors, (38), 10 states have call predecessors, (38), 17 states have return successors, (38), 11 states have call predecessors, (38), 17 states have call successors, (38) [2024-11-28 03:12:07,752 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 899 transitions. [2024-11-28 03:12:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:12:07,753 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:07,753 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:07,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2024-11-28 03:12:07,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-11-28 03:12:08,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:08,154 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:08,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:08,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1458461425, now seen corresponding path program 1 times [2024-11-28 03:12:08,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:12:08,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64279752] [2024-11-28 03:12:08,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:08,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:08,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:12:08,158 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:12:08,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-28 03:12:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:08,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 03:12:08,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:12:08,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:12:08,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 03:12:08,950 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:08,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-28 03:12:09,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:09,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 44 [2024-11-28 03:12:09,329 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:09,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 59 [2024-11-28 03:12:09,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:09,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 40 [2024-11-28 03:12:09,914 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-11-28 03:12:09,914 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:12:09,914 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:12:09,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64279752] [2024-11-28 03:12:09,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64279752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:09,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:09,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:12:09,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452135994] [2024-11-28 03:12:09,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:09,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:12:09,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:12:09,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:12:09,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:12:09,916 INFO L87 Difference]: Start difference. First operand 630 states and 899 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:12:13,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:13,207 INFO L93 Difference]: Finished difference Result 1022 states and 1450 transitions. [2024-11-28 03:12:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:12:13,208 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 151 [2024-11-28 03:12:13,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:13,211 INFO L225 Difference]: With dead ends: 1022 [2024-11-28 03:12:13,211 INFO L226 Difference]: Without dead ends: 719 [2024-11-28 03:12:13,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:12:13,213 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 349 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:13,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1473 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:12:13,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-11-28 03:12:13,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 627. [2024-11-28 03:12:13,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 573 states have (on average 1.431064572425829) internal successors, (820), 573 states have internal predecessors, (820), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:12:13,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 896 transitions. [2024-11-28 03:12:13,364 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 896 transitions. Word has length 151 [2024-11-28 03:12:13,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:13,365 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 896 transitions. [2024-11-28 03:12:13,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:12:13,365 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 896 transitions. [2024-11-28 03:12:13,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:12:13,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:13,366 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:13,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-11-28 03:12:13,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:13,568 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:13,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:13,568 INFO L85 PathProgramCache]: Analyzing trace with hash 123831353, now seen corresponding path program 1 times [2024-11-28 03:12:13,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:12:13,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333288701] [2024-11-28 03:12:13,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:13,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:13,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:12:13,572 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:12:13,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2024-11-28 03:12:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:14,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-28 03:12:14,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:12:15,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-28 03:12:15,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 03:12:15,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-28 03:12:16,311 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:16,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2024-11-28 03:12:17,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 59 [2024-11-28 03:12:21,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:21,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 137 treesize of output 103 [2024-11-28 03:12:23,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 43 [2024-11-28 03:12:24,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:24,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 177 treesize of output 79 [2024-11-28 03:12:26,063 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 155 proven. 373 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 03:12:26,063 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:12:29,194 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:12:29,194 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:12:29,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333288701] [2024-11-28 03:12:29,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333288701] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:12:29,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:12:29,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [47] total 60 [2024-11-28 03:12:29,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398243998] [2024-11-28 03:12:29,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:29,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:12:29,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:12:29,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:12:29,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=3265, Unknown=0, NotChecked=0, Total=3540 [2024-11-28 03:12:29,196 INFO L87 Difference]: Start difference. First operand 627 states and 896 transitions. Second operand has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:12:33,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:33,874 INFO L93 Difference]: Finished difference Result 1474 states and 2099 transitions. [2024-11-28 03:12:33,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:12:33,875 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-28 03:12:33,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:33,877 INFO L225 Difference]: With dead ends: 1474 [2024-11-28 03:12:33,878 INFO L226 Difference]: Without dead ends: 850 [2024-11-28 03:12:33,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1598 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=373, Invalid=4457, Unknown=0, NotChecked=0, Total=4830 [2024-11-28 03:12:33,879 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 384 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:33,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 2073 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 03:12:33,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-28 03:12:33,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 630. [2024-11-28 03:12:33,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 576 states have (on average 1.4305555555555556) internal successors, (824), 576 states have internal predecessors, (824), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:12:33,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 900 transitions. [2024-11-28 03:12:33,966 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 900 transitions. Word has length 153 [2024-11-28 03:12:33,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:33,967 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 900 transitions. [2024-11-28 03:12:33,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:12:33,967 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 900 transitions. [2024-11-28 03:12:33,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:12:33,968 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:33,968 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:33,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2024-11-28 03:12:34,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:34,168 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:34,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:34,169 INFO L85 PathProgramCache]: Analyzing trace with hash -462974661, now seen corresponding path program 1 times [2024-11-28 03:12:34,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:12:34,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092159306] [2024-11-28 03:12:34,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:34,169 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:34,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:12:34,171 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:12:34,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-11-28 03:12:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:34,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:12:34,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:12:34,507 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:34,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 16 [2024-11-28 03:12:34,534 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:12:34,534 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:12:34,534 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:12:34,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092159306] [2024-11-28 03:12:34,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092159306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:34,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:34,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:12:34,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759098250] [2024-11-28 03:12:34,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:34,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:12:34,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:12:34,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:12:34,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:12:34,536 INFO L87 Difference]: Start difference. First operand 630 states and 900 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:12:35,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:35,064 INFO L93 Difference]: Finished difference Result 1423 states and 2011 transitions. [2024-11-28 03:12:35,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:12:35,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-28 03:12:35,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:35,068 INFO L225 Difference]: With dead ends: 1423 [2024-11-28 03:12:35,068 INFO L226 Difference]: Without dead ends: 796 [2024-11-28 03:12:35,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:12:35,070 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 97 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:35,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 521 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:12:35,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-11-28 03:12:35,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 630. [2024-11-28 03:12:35,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 576 states have (on average 1.4253472222222223) internal successors, (821), 576 states have internal predecessors, (821), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:12:35,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 897 transitions. [2024-11-28 03:12:35,192 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 897 transitions. Word has length 153 [2024-11-28 03:12:35,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:35,192 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 897 transitions. [2024-11-28 03:12:35,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:12:35,193 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 897 transitions. [2024-11-28 03:12:35,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:12:35,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:35,194 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:35,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2024-11-28 03:12:35,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:35,395 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:35,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:35,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1929269687, now seen corresponding path program 1 times [2024-11-28 03:12:35,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:12:35,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718734498] [2024-11-28 03:12:35,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:35,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:35,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:12:35,397 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:12:35,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-11-28 03:12:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:35,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-28 03:12:35,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:12:35,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:12:36,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:12:36,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-28 03:12:38,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:38,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 57 [2024-11-28 03:12:38,523 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:38,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 96 treesize of output 71 [2024-11-28 03:12:39,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-28 03:12:39,775 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:39,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 160 treesize of output 70 [2024-11-28 03:12:40,730 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 444 proven. 42 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-28 03:12:40,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:12:42,886 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:12:42,886 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:12:42,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718734498] [2024-11-28 03:12:42,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718734498] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:12:42,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:12:42,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [35] total 46 [2024-11-28 03:12:42,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220742604] [2024-11-28 03:12:42,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:42,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:12:42,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:12:42,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:12:42,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1889, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 03:12:42,888 INFO L87 Difference]: Start difference. First operand 630 states and 897 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:12:47,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:47,022 INFO L93 Difference]: Finished difference Result 1089 states and 1545 transitions. [2024-11-28 03:12:47,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:12:47,023 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-28 03:12:47,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:47,026 INFO L225 Difference]: With dead ends: 1089 [2024-11-28 03:12:47,026 INFO L226 Difference]: Without dead ends: 787 [2024-11-28 03:12:47,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=244, Invalid=2726, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 03:12:47,027 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 196 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:47,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 2027 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:12:47,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-11-28 03:12:47,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 631. [2024-11-28 03:12:47,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 577 states have (on average 1.4263431542461005) internal successors, (823), 577 states have internal predecessors, (823), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:12:47,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 899 transitions. [2024-11-28 03:12:47,110 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 899 transitions. Word has length 153 [2024-11-28 03:12:47,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:47,110 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 899 transitions. [2024-11-28 03:12:47,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:12:47,110 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 899 transitions. [2024-11-28 03:12:47,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:12:47,111 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:47,111 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:47,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2024-11-28 03:12:47,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:47,311 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:47,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:47,312 INFO L85 PathProgramCache]: Analyzing trace with hash -2008709915, now seen corresponding path program 1 times [2024-11-28 03:12:47,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:12:47,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747771562] [2024-11-28 03:12:47,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:47,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:47,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:12:47,314 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:12:47,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-11-28 03:12:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:47,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 03:12:47,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:12:47,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:12:48,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-28 03:12:48,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-28 03:12:49,031 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:49,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 32 [2024-11-28 03:12:49,156 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:12:49,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:12:49,568 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:12:49,569 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:12:49,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747771562] [2024-11-28 03:12:49,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747771562] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:12:49,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:12:49,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18] total 22 [2024-11-28 03:12:49,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345943622] [2024-11-28 03:12:49,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:49,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:12:49,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:12:49,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:12:49,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:12:49,570 INFO L87 Difference]: Start difference. First operand 631 states and 899 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:12:50,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:50,190 INFO L93 Difference]: Finished difference Result 1474 states and 2098 transitions. [2024-11-28 03:12:50,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:12:50,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-28 03:12:50,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:50,194 INFO L225 Difference]: With dead ends: 1474 [2024-11-28 03:12:50,195 INFO L226 Difference]: Without dead ends: 846 [2024-11-28 03:12:50,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:12:50,196 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 186 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:50,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 496 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:12:50,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2024-11-28 03:12:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 748. [2024-11-28 03:12:50,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 694 states have (on average 1.4394812680115274) internal successors, (999), 694 states have internal predecessors, (999), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:12:50,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1075 transitions. [2024-11-28 03:12:50,359 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1075 transitions. Word has length 153 [2024-11-28 03:12:50,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:50,359 INFO L471 AbstractCegarLoop]: Abstraction has 748 states and 1075 transitions. [2024-11-28 03:12:50,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:12:50,360 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1075 transitions. [2024-11-28 03:12:50,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:12:50,361 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:50,362 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:50,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2024-11-28 03:12:50,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:50,565 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:50,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:50,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1476910755, now seen corresponding path program 1 times [2024-11-28 03:12:50,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:12:50,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984793709] [2024-11-28 03:12:50,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:50,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:50,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:12:50,570 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:12:50,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-11-28 03:12:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:50,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:12:50,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:12:50,928 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:12:50,928 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:12:50,929 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:12:50,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984793709] [2024-11-28 03:12:50,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984793709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:50,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:50,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:12:50,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055098415] [2024-11-28 03:12:50,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:50,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:12:50,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:12:50,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:12:50,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:12:50,930 INFO L87 Difference]: Start difference. First operand 748 states and 1075 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:12:51,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:51,050 INFO L93 Difference]: Finished difference Result 1498 states and 2154 transitions. [2024-11-28 03:12:51,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:12:51,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-28 03:12:51,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:51,054 INFO L225 Difference]: With dead ends: 1498 [2024-11-28 03:12:51,054 INFO L226 Difference]: Without dead ends: 753 [2024-11-28 03:12:51,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:12:51,056 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:51,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 644 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:12:51,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-28 03:12:51,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 753. [2024-11-28 03:12:51,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 699 states have (on average 1.436337625178827) internal successors, (1004), 699 states have internal predecessors, (1004), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:12:51,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1080 transitions. [2024-11-28 03:12:51,173 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1080 transitions. Word has length 153 [2024-11-28 03:12:51,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:51,173 INFO L471 AbstractCegarLoop]: Abstraction has 753 states and 1080 transitions. [2024-11-28 03:12:51,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:12:51,173 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1080 transitions. [2024-11-28 03:12:51,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:12:51,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:51,174 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:51,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2024-11-28 03:12:51,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:51,375 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:51,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:51,375 INFO L85 PathProgramCache]: Analyzing trace with hash 2145708771, now seen corresponding path program 1 times [2024-11-28 03:12:51,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:12:51,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114869334] [2024-11-28 03:12:51,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:51,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:51,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:12:51,378 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:12:51,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2024-11-28 03:12:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:51,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:12:51,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:12:51,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:12:51,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-28 03:12:52,247 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:52,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-28 03:12:52,350 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:52,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 52 [2024-11-28 03:12:52,758 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:52,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 44 [2024-11-28 03:12:52,824 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 253 proven. 6 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2024-11-28 03:12:52,824 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:12:53,027 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:12:53,027 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:12:53,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114869334] [2024-11-28 03:12:53,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114869334] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:12:53,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:12:53,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 15 [2024-11-28 03:12:53,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482722476] [2024-11-28 03:12:53,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:53,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:12:53,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:12:53,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:12:53,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:12:53,028 INFO L87 Difference]: Start difference. First operand 753 states and 1080 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:12:53,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:53,538 INFO L93 Difference]: Finished difference Result 1239 states and 1767 transitions. [2024-11-28 03:12:53,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:12:53,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-28 03:12:53,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:53,542 INFO L225 Difference]: With dead ends: 1239 [2024-11-28 03:12:53,542 INFO L226 Difference]: Without dead ends: 830 [2024-11-28 03:12:53,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:12:53,542 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 116 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:53,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 1163 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:12:53,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-11-28 03:12:53,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 752. [2024-11-28 03:12:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 698 states have (on average 1.4369627507163323) internal successors, (1003), 698 states have internal predecessors, (1003), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:12:53,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1079 transitions. [2024-11-28 03:12:53,622 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1079 transitions. Word has length 153 [2024-11-28 03:12:53,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:53,622 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1079 transitions. [2024-11-28 03:12:53,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:12:53,622 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1079 transitions. [2024-11-28 03:12:53,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:12:53,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:53,623 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:53,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2024-11-28 03:12:53,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:53,823 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:53,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:53,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1566593089, now seen corresponding path program 1 times [2024-11-28 03:12:53,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:12:53,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596355962] [2024-11-28 03:12:53,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:53,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:53,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:12:53,826 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:12:53,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-11-28 03:12:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:54,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-28 03:12:54,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:12:55,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-28 03:12:55,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 03:12:55,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 03:12:55,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:55,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-28 03:12:56,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2024-11-28 03:12:57,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2024-11-28 03:12:58,304 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:58,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 76 [2024-11-28 03:13:00,067 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:00,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 107 treesize of output 55 [2024-11-28 03:13:01,806 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 149 proven. 376 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-28 03:13:01,806 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:03,913 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:13:03,913 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:03,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596355962] [2024-11-28 03:13:03,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596355962] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:03,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:13:03,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [39] total 51 [2024-11-28 03:13:03,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783519371] [2024-11-28 03:13:03,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:03,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:13:03,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:03,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:13:03,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=2355, Unknown=0, NotChecked=0, Total=2550 [2024-11-28 03:13:03,915 INFO L87 Difference]: Start difference. First operand 752 states and 1079 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:07,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:07,849 INFO L93 Difference]: Finished difference Result 1790 states and 2527 transitions. [2024-11-28 03:13:07,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:13:07,850 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-28 03:13:07,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:07,852 INFO L225 Difference]: With dead ends: 1790 [2024-11-28 03:13:07,852 INFO L226 Difference]: Without dead ends: 1041 [2024-11-28 03:13:07,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 255 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1226 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=269, Invalid=3271, Unknown=0, NotChecked=0, Total=3540 [2024-11-28 03:13:07,854 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 327 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:07,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 2492 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:13:07,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-11-28 03:13:07,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 750. [2024-11-28 03:13:07,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 696 states have (on average 1.4382183908045978) internal successors, (1001), 696 states have internal predecessors, (1001), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:13:07,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1077 transitions. [2024-11-28 03:13:07,995 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1077 transitions. Word has length 153 [2024-11-28 03:13:07,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:07,995 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 1077 transitions. [2024-11-28 03:13:07,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:07,995 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1077 transitions. [2024-11-28 03:13:07,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:13:07,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:07,996 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:08,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2024-11-28 03:13:08,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:08,197 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:08,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:08,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1786618673, now seen corresponding path program 1 times [2024-11-28 03:13:08,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:08,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342737710] [2024-11-28 03:13:08,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:08,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:08,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:08,199 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:08,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2024-11-28 03:13:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:08,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:13:08,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:08,582 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:13:08,582 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:13:08,582 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:08,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342737710] [2024-11-28 03:13:08,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342737710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:08,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:08,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:08,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958253602] [2024-11-28 03:13:08,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:08,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:08,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:08,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:08,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:08,583 INFO L87 Difference]: Start difference. First operand 750 states and 1077 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:09,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:09,142 INFO L93 Difference]: Finished difference Result 2082 states and 2940 transitions. [2024-11-28 03:13:09,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:09,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-11-28 03:13:09,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:09,146 INFO L225 Difference]: With dead ends: 2082 [2024-11-28 03:13:09,146 INFO L226 Difference]: Without dead ends: 1335 [2024-11-28 03:13:09,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:13:09,147 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 135 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:09,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 527 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:13:09,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2024-11-28 03:13:09,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 893. [2024-11-28 03:13:09,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 839 states have (on average 1.3873659117997617) internal successors, (1164), 839 states have internal predecessors, (1164), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:13:09,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1240 transitions. [2024-11-28 03:13:09,246 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1240 transitions. Word has length 154 [2024-11-28 03:13:09,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:09,246 INFO L471 AbstractCegarLoop]: Abstraction has 893 states and 1240 transitions. [2024-11-28 03:13:09,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:09,247 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1240 transitions. [2024-11-28 03:13:09,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 03:13:09,248 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:09,248 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:09,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2024-11-28 03:13:09,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:09,449 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:09,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:09,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1611086248, now seen corresponding path program 1 times [2024-11-28 03:13:09,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:09,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953478640] [2024-11-28 03:13:09,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:09,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:09,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:09,451 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:09,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2024-11-28 03:13:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:09,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:13:09,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:09,797 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:13:09,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:13:09,797 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:09,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953478640] [2024-11-28 03:13:09,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953478640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:09,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:09,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:13:09,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785303786] [2024-11-28 03:13:09,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:09,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:09,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:09,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:09,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:09,798 INFO L87 Difference]: Start difference. First operand 893 states and 1240 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:09,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:09,900 INFO L93 Difference]: Finished difference Result 1785 states and 2481 transitions. [2024-11-28 03:13:09,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:09,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2024-11-28 03:13:09,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:09,903 INFO L225 Difference]: With dead ends: 1785 [2024-11-28 03:13:09,903 INFO L226 Difference]: Without dead ends: 895 [2024-11-28 03:13:09,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:09,904 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:09,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 327 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:13:09,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2024-11-28 03:13:09,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 895. [2024-11-28 03:13:09,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 841 states have (on average 1.3864447086801426) internal successors, (1166), 841 states have internal predecessors, (1166), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:13:09,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1242 transitions. [2024-11-28 03:13:09,997 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1242 transitions. Word has length 156 [2024-11-28 03:13:09,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:09,998 INFO L471 AbstractCegarLoop]: Abstraction has 895 states and 1242 transitions. [2024-11-28 03:13:09,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:09,998 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1242 transitions. [2024-11-28 03:13:09,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 03:13:09,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:09,999 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:10,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2024-11-28 03:13:10,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:10,200 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:10,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:10,200 INFO L85 PathProgramCache]: Analyzing trace with hash 163921114, now seen corresponding path program 1 times [2024-11-28 03:13:10,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:10,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150785030] [2024-11-28 03:13:10,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:10,201 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:10,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:10,205 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:10,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-11-28 03:13:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:10,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:13:10,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:10,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:13:10,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-28 03:13:11,435 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:11,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 39 [2024-11-28 03:13:11,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:11,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 39 [2024-11-28 03:13:11,775 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 288 proven. 39 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-28 03:13:11,775 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:12,031 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:13:12,031 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:12,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150785030] [2024-11-28 03:13:12,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150785030] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:12,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:13:12,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 16 [2024-11-28 03:13:12,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20135688] [2024-11-28 03:13:12,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:12,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:13:12,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:12,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:13:12,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:13:12,033 INFO L87 Difference]: Start difference. First operand 895 states and 1242 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:12,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:12,525 INFO L93 Difference]: Finished difference Result 1431 states and 1964 transitions. [2024-11-28 03:13:12,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:13:12,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2024-11-28 03:13:12,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:12,532 INFO L225 Difference]: With dead ends: 1431 [2024-11-28 03:13:12,532 INFO L226 Difference]: Without dead ends: 1429 [2024-11-28 03:13:12,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:13:12,533 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 68 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:12,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 872 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:13:12,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2024-11-28 03:13:12,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1425. [2024-11-28 03:13:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1361 states have (on average 1.3710506980161645) internal successors, (1866), 1363 states have internal predecessors, (1866), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:13:12,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1958 transitions. [2024-11-28 03:13:12,663 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1958 transitions. Word has length 156 [2024-11-28 03:13:12,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:12,664 INFO L471 AbstractCegarLoop]: Abstraction has 1425 states and 1958 transitions. [2024-11-28 03:13:12,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:12,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1958 transitions. [2024-11-28 03:13:12,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 03:13:12,665 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:12,665 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:12,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2024-11-28 03:13:12,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:12,865 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:12,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:12,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1246750327, now seen corresponding path program 1 times [2024-11-28 03:13:12,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:12,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529560723] [2024-11-28 03:13:12,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:12,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:12,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:12,868 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:12,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2024-11-28 03:13:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:13,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:13:13,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:13,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:13:13,246 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:13:13,246 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:13:13,246 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:13,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529560723] [2024-11-28 03:13:13,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529560723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:13,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:13,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:13:13,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720074387] [2024-11-28 03:13:13,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:13,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:13:13,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:13,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:13:13,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:13:13,248 INFO L87 Difference]: Start difference. First operand 1425 states and 1958 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:13,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:13,548 INFO L93 Difference]: Finished difference Result 2847 states and 3913 transitions. [2024-11-28 03:13:13,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:13:13,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2024-11-28 03:13:13,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:13,554 INFO L225 Difference]: With dead ends: 2847 [2024-11-28 03:13:13,554 INFO L226 Difference]: Without dead ends: 1425 [2024-11-28 03:13:13,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:13:13,559 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:13,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 481 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:13:13,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2024-11-28 03:13:13,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1425. [2024-11-28 03:13:13,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1361 states have (on average 1.2887582659808965) internal successors, (1754), 1363 states have internal predecessors, (1754), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:13:13,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1846 transitions. [2024-11-28 03:13:13,778 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1846 transitions. Word has length 156 [2024-11-28 03:13:13,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:13,778 INFO L471 AbstractCegarLoop]: Abstraction has 1425 states and 1846 transitions. [2024-11-28 03:13:13,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:13,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1846 transitions. [2024-11-28 03:13:13,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 03:13:13,780 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:13,780 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:13,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2024-11-28 03:13:13,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:13,981 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:13,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:13,981 INFO L85 PathProgramCache]: Analyzing trace with hash -100897105, now seen corresponding path program 1 times [2024-11-28 03:13:13,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:13,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791188722] [2024-11-28 03:13:13,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:13,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:13,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:13,985 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:13,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2024-11-28 03:13:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:14,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:13:14,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:15,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2024-11-28 03:13:15,321 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:15,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 20 [2024-11-28 03:13:15,367 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 332 proven. 66 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-11-28 03:13:15,368 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:15,901 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 66 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2024-11-28 03:13:15,901 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:15,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791188722] [2024-11-28 03:13:15,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791188722] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:13:15,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:13:15,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 18 [2024-11-28 03:13:15,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441909923] [2024-11-28 03:13:15,901 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:13:15,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:13:15,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:15,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:13:15,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:13:15,903 INFO L87 Difference]: Start difference. First operand 1425 states and 1846 transitions. Second operand has 18 states, 14 states have (on average 7.642857142857143) internal successors, (107), 18 states have internal predecessors, (107), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-28 03:13:18,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:18,541 INFO L93 Difference]: Finished difference Result 3158 states and 4129 transitions. [2024-11-28 03:13:18,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-28 03:13:18,541 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 7.642857142857143) internal successors, (107), 18 states have internal predecessors, (107), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) Word has length 157 [2024-11-28 03:13:18,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:18,546 INFO L225 Difference]: With dead ends: 3158 [2024-11-28 03:13:18,546 INFO L226 Difference]: Without dead ends: 1736 [2024-11-28 03:13:18,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 296 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=353, Invalid=1207, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 03:13:18,549 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 405 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:18,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1515 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:13:18,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-28 03:13:18,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1360. [2024-11-28 03:13:18,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1274 states have (on average 1.2755102040816326) internal successors, (1625), 1276 states have internal predecessors, (1625), 56 states have call successors, (56), 29 states have call predecessors, (56), 29 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 03:13:18,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1737 transitions. [2024-11-28 03:13:18,958 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1737 transitions. Word has length 157 [2024-11-28 03:13:18,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:18,961 INFO L471 AbstractCegarLoop]: Abstraction has 1360 states and 1737 transitions. [2024-11-28 03:13:18,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 7.642857142857143) internal successors, (107), 18 states have internal predecessors, (107), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-28 03:13:18,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1737 transitions. [2024-11-28 03:13:18,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 03:13:18,963 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:18,963 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:18,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2024-11-28 03:13:19,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:19,167 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:19,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:19,168 INFO L85 PathProgramCache]: Analyzing trace with hash -2112059860, now seen corresponding path program 1 times [2024-11-28 03:13:19,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:19,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873697318] [2024-11-28 03:13:19,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:19,168 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:19,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:19,173 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:19,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2024-11-28 03:13:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:19,591 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:13:19,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:19,667 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:13:19,667 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:13:19,667 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:19,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873697318] [2024-11-28 03:13:19,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873697318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:19,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:19,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:19,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452498398] [2024-11-28 03:13:19,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:19,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:19,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:19,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:19,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:19,669 INFO L87 Difference]: Start difference. First operand 1360 states and 1737 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:20,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:20,366 INFO L93 Difference]: Finished difference Result 3249 states and 4178 transitions. [2024-11-28 03:13:20,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:13:20,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2024-11-28 03:13:20,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:20,371 INFO L225 Difference]: With dead ends: 3249 [2024-11-28 03:13:20,371 INFO L226 Difference]: Without dead ends: 1892 [2024-11-28 03:13:20,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:13:20,373 INFO L435 NwaCegarLoop]: 283 mSDtfsCounter, 141 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:20,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 906 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:13:20,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2024-11-28 03:13:20,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1360. [2024-11-28 03:13:20,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1274 states have (on average 1.2660910518053374) internal successors, (1613), 1276 states have internal predecessors, (1613), 56 states have call successors, (56), 29 states have call predecessors, (56), 29 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 03:13:20,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1725 transitions. [2024-11-28 03:13:20,615 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1725 transitions. Word has length 157 [2024-11-28 03:13:20,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:20,615 INFO L471 AbstractCegarLoop]: Abstraction has 1360 states and 1725 transitions. [2024-11-28 03:13:20,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:20,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1725 transitions. [2024-11-28 03:13:20,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 03:13:20,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:20,617 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:20,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2024-11-28 03:13:20,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:20,818 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:20,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:20,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1150625050, now seen corresponding path program 1 times [2024-11-28 03:13:20,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:20,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866466709] [2024-11-28 03:13:20,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:20,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:20,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:20,822 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:20,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2024-11-28 03:13:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:21,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:13:21,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:21,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-28 03:13:21,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2024-11-28 03:13:21,731 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:21,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2024-11-28 03:13:21,905 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:21,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2024-11-28 03:13:22,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:22,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 49 [2024-11-28 03:13:23,304 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 88 proven. 51 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2024-11-28 03:13:23,304 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:23,474 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:13:23,474 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:23,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866466709] [2024-11-28 03:13:23,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866466709] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:23,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:13:23,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2024-11-28 03:13:23,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580740843] [2024-11-28 03:13:23,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:23,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:23,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:23,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:23,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:13:23,476 INFO L87 Difference]: Start difference. First operand 1360 states and 1725 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:23,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:23,816 INFO L93 Difference]: Finished difference Result 3636 states and 4609 transitions. [2024-11-28 03:13:23,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:23,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2024-11-28 03:13:23,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:23,823 INFO L225 Difference]: With dead ends: 3636 [2024-11-28 03:13:23,823 INFO L226 Difference]: Without dead ends: 2279 [2024-11-28 03:13:23,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:13:23,825 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 101 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:23,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 433 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:13:23,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2024-11-28 03:13:24,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2221. [2024-11-28 03:13:24,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 2135 states have (on average 1.2637002341920374) internal successors, (2698), 2137 states have internal predecessors, (2698), 56 states have call successors, (56), 29 states have call predecessors, (56), 29 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 03:13:24,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 2810 transitions. [2024-11-28 03:13:24,152 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 2810 transitions. Word has length 158 [2024-11-28 03:13:24,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:24,152 INFO L471 AbstractCegarLoop]: Abstraction has 2221 states and 2810 transitions. [2024-11-28 03:13:24,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:24,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 2810 transitions. [2024-11-28 03:13:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 03:13:24,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:24,155 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:24,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2024-11-28 03:13:24,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:24,355 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:24,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:24,356 INFO L85 PathProgramCache]: Analyzing trace with hash -470566680, now seen corresponding path program 1 times [2024-11-28 03:13:24,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:24,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801321378] [2024-11-28 03:13:24,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:24,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:24,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:24,359 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:24,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2024-11-28 03:13:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:24,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:13:24,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:24,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:13:24,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:13:24,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:13:25,266 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:25,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-11-28 03:13:25,535 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 204 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-28 03:13:25,535 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:25,759 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:13:25,759 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:25,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801321378] [2024-11-28 03:13:25,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801321378] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:25,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:13:25,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-28 03:13:25,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270318938] [2024-11-28 03:13:25,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:25,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:25,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:25,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:25,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:13:25,761 INFO L87 Difference]: Start difference. First operand 2221 states and 2810 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:26,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:26,177 INFO L93 Difference]: Finished difference Result 4953 states and 6244 transitions. [2024-11-28 03:13:26,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:26,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2024-11-28 03:13:26,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:26,182 INFO L225 Difference]: With dead ends: 4953 [2024-11-28 03:13:26,182 INFO L226 Difference]: Without dead ends: 2735 [2024-11-28 03:13:26,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:13:26,185 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 92 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:26,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 436 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:13:26,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2735 states. [2024-11-28 03:13:26,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2735 to 2731. [2024-11-28 03:13:26,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2731 states, 2639 states have (on average 1.2550208412277377) internal successors, (3312), 2643 states have internal predecessors, (3312), 60 states have call successors, (60), 31 states have call predecessors, (60), 31 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-28 03:13:26,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2731 states to 2731 states and 3432 transitions. [2024-11-28 03:13:26,619 INFO L78 Accepts]: Start accepts. Automaton has 2731 states and 3432 transitions. Word has length 158 [2024-11-28 03:13:26,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:26,619 INFO L471 AbstractCegarLoop]: Abstraction has 2731 states and 3432 transitions. [2024-11-28 03:13:26,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:26,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2731 states and 3432 transitions. [2024-11-28 03:13:26,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 03:13:26,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:26,622 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:26,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Ended with exit code 0 [2024-11-28 03:13:26,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:26,823 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:26,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:26,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1343196839, now seen corresponding path program 1 times [2024-11-28 03:13:26,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:26,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392130548] [2024-11-28 03:13:26,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:26,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:26,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:26,828 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:26,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2024-11-28 03:13:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:27,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 03:13:27,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:27,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:13:27,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-28 03:13:28,237 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:28,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 39 [2024-11-28 03:13:28,304 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:28,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 19 [2024-11-28 03:13:28,348 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 288 proven. 39 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-28 03:13:28,348 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 15 proven. 39 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-28 03:13:28,831 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:28,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392130548] [2024-11-28 03:13:28,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392130548] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:13:28,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:13:28,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2024-11-28 03:13:28,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697275537] [2024-11-28 03:13:28,831 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:13:28,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:13:28,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:28,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:13:28,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:13:28,833 INFO L87 Difference]: Start difference. First operand 2731 states and 3432 transitions. Second operand has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 14 states have internal predecessors, (106), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 3 states have call predecessors, (33), 5 states have call successors, (33) [2024-11-28 03:13:30,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:30,498 INFO L93 Difference]: Finished difference Result 5165 states and 6595 transitions. [2024-11-28 03:13:30,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 03:13:30,499 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 14 states have internal predecessors, (106), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 3 states have call predecessors, (33), 5 states have call successors, (33) Word has length 159 [2024-11-28 03:13:30,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:30,504 INFO L225 Difference]: With dead ends: 5165 [2024-11-28 03:13:30,504 INFO L226 Difference]: Without dead ends: 2437 [2024-11-28 03:13:30,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 304 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2024-11-28 03:13:30,508 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 344 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:30,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 698 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:13:30,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2024-11-28 03:13:30,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 1889. [2024-11-28 03:13:30,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1821 states have (on average 1.2240527182866556) internal successors, (2229), 1823 states have internal predecessors, (2229), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:13:30,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2313 transitions. [2024-11-28 03:13:30,775 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2313 transitions. Word has length 159 [2024-11-28 03:13:30,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:30,775 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 2313 transitions. [2024-11-28 03:13:30,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 14 states have internal predecessors, (106), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 3 states have call predecessors, (33), 5 states have call successors, (33) [2024-11-28 03:13:30,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2313 transitions. [2024-11-28 03:13:30,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:13:30,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:30,778 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:30,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2024-11-28 03:13:30,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:30,978 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:30,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:30,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1998557362, now seen corresponding path program 1 times [2024-11-28 03:13:30,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:30,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375859162] [2024-11-28 03:13:30,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:30,980 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:30,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:30,982 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:30,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2024-11-28 03:13:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:31,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:13:31,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:31,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:13:32,978 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:32,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 188 treesize of output 98 [2024-11-28 03:13:33,414 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:33,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 384 treesize of output 134 [2024-11-28 03:13:33,590 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2024-11-28 03:13:33,590 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:34,118 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:34,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375859162] [2024-11-28 03:13:34,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375859162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:34,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1502088095] [2024-11-28 03:13:34,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:34,118 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:13:34,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:13:34,123 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:13:34,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2024-11-28 03:13:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:35,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 03:13:35,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:35,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-28 03:13:38,785 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:38,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 100 [2024-11-28 03:13:39,563 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:39,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 326 treesize of output 142 [2024-11-28 03:13:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2024-11-28 03:13:39,606 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:39,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1502088095] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:39,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:13:39,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2024-11-28 03:13:39,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379942198] [2024-11-28 03:13:39,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:13:39,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 03:13:39,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:39,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 03:13:39,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:13:39,995 INFO L87 Difference]: Start difference. First operand 1889 states and 2313 transitions. Second operand has 19 states, 19 states have (on average 6.894736842105263) internal successors, (131), 18 states have internal predecessors, (131), 4 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-28 03:13:46,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:46,701 INFO L93 Difference]: Finished difference Result 6193 states and 7556 transitions. [2024-11-28 03:13:46,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 03:13:46,702 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.894736842105263) internal successors, (131), 18 states have internal predecessors, (131), 4 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) Word has length 160 [2024-11-28 03:13:46,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:46,706 INFO L225 Difference]: With dead ends: 6193 [2024-11-28 03:13:46,706 INFO L226 Difference]: Without dead ends: 4307 [2024-11-28 03:13:46,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 375 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=273, Invalid=1619, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 03:13:46,708 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 552 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:46,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 2718 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 03:13:46,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2024-11-28 03:13:47,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 2893. [2024-11-28 03:13:47,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2788 states have (on average 1.255738880918221) internal successors, (3501), 2790 states have internal predecessors, (3501), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:13:47,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 3629 transitions. [2024-11-28 03:13:47,097 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 3629 transitions. Word has length 160 [2024-11-28 03:13:47,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:47,097 INFO L471 AbstractCegarLoop]: Abstraction has 2893 states and 3629 transitions. [2024-11-28 03:13:47,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.894736842105263) internal successors, (131), 18 states have internal predecessors, (131), 4 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-28 03:13:47,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 3629 transitions. [2024-11-28 03:13:47,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:13:47,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:47,099 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:47,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2024-11-28 03:13:47,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (54)] Forceful destruction successful, exit code 0 [2024-11-28 03:13:47,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:13:47,500 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:47,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:47,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1602913538, now seen corresponding path program 1 times [2024-11-28 03:13:47,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:47,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025930136] [2024-11-28 03:13:47,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:47,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:47,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:47,502 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:47,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2024-11-28 03:13:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:47,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:13:47,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:48,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2024-11-28 03:13:48,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:48,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 20 [2024-11-28 03:13:48,756 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 332 proven. 66 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-11-28 03:13:48,757 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:49,233 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 66 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2024-11-28 03:13:49,233 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:49,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025930136] [2024-11-28 03:13:49,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2025930136] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:13:49,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:13:49,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 18 [2024-11-28 03:13:49,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030031384] [2024-11-28 03:13:49,234 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:13:49,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:13:49,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:49,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:13:49,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:13:49,236 INFO L87 Difference]: Start difference. First operand 2893 states and 3629 transitions. Second operand has 18 states, 14 states have (on average 8.642857142857142) internal successors, (121), 18 states have internal predecessors, (121), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-28 03:13:52,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:52,258 INFO L93 Difference]: Finished difference Result 6763 states and 8660 transitions. [2024-11-28 03:13:52,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-28 03:13:52,258 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 8.642857142857142) internal successors, (121), 18 states have internal predecessors, (121), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) Word has length 160 [2024-11-28 03:13:52,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:52,264 INFO L225 Difference]: With dead ends: 6763 [2024-11-28 03:13:52,264 INFO L226 Difference]: Without dead ends: 3873 [2024-11-28 03:13:52,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 302 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=353, Invalid=1207, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 03:13:52,267 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 384 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:52,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1780 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:13:52,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3873 states. [2024-11-28 03:13:52,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3873 to 2893. [2024-11-28 03:13:52,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2788 states have (on average 1.2514347202295553) internal successors, (3489), 2790 states have internal predecessors, (3489), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:13:52,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 3617 transitions. [2024-11-28 03:13:52,508 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 3617 transitions. Word has length 160 [2024-11-28 03:13:52,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:52,508 INFO L471 AbstractCegarLoop]: Abstraction has 2893 states and 3617 transitions. [2024-11-28 03:13:52,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 8.642857142857142) internal successors, (121), 18 states have internal predecessors, (121), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-28 03:13:52,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 3617 transitions. [2024-11-28 03:13:52,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:13:52,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:52,510 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:52,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Ended with exit code 0 [2024-11-28 03:13:52,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:52,710 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:52,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:52,711 INFO L85 PathProgramCache]: Analyzing trace with hash 193119028, now seen corresponding path program 1 times [2024-11-28 03:13:52,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:52,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217094830] [2024-11-28 03:13:52,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:52,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:52,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:52,713 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:52,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2024-11-28 03:13:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:53,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:13:53,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:53,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:53,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-11-28 03:13:53,209 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:13:53,209 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:13:53,209 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:53,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217094830] [2024-11-28 03:13:53,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217094830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:53,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:53,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:13:53,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916565911] [2024-11-28 03:13:53,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:53,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:13:53,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:53,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:13:53,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:13:53,210 INFO L87 Difference]: Start difference. First operand 2893 states and 3617 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:54,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:54,333 INFO L93 Difference]: Finished difference Result 6152 states and 7642 transitions. [2024-11-28 03:13:54,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:13:54,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-11-28 03:13:54,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:54,338 INFO L225 Difference]: With dead ends: 6152 [2024-11-28 03:13:54,338 INFO L226 Difference]: Without dead ends: 3262 [2024-11-28 03:13:54,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:13:54,340 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 115 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:54,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 809 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:13:54,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2024-11-28 03:13:54,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 2673. [2024-11-28 03:13:54,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2673 states, 2568 states have (on average 1.2153426791277258) internal successors, (3121), 2570 states have internal predecessors, (3121), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:13:54,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 3249 transitions. [2024-11-28 03:13:54,579 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 3249 transitions. Word has length 160 [2024-11-28 03:13:54,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:54,579 INFO L471 AbstractCegarLoop]: Abstraction has 2673 states and 3249 transitions. [2024-11-28 03:13:54,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:54,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 3249 transitions. [2024-11-28 03:13:54,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:13:54,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:54,580 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:54,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Ended with exit code 0 [2024-11-28 03:13:54,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:54,781 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:54,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:54,781 INFO L85 PathProgramCache]: Analyzing trace with hash 2057146109, now seen corresponding path program 1 times [2024-11-28 03:13:54,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:54,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194474764] [2024-11-28 03:13:54,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:54,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:54,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:54,785 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:54,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2024-11-28 03:13:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:55,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 03:13:55,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:55,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:13:56,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-11-28 03:13:56,617 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:56,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 31 [2024-11-28 03:13:56,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2024-11-28 03:13:56,987 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:13:56,987 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:57,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2024-11-28 03:13:57,778 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:13:57,778 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:57,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194474764] [2024-11-28 03:13:57,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194474764] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:57,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:13:57,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 24 [2024-11-28 03:13:57,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632599927] [2024-11-28 03:13:57,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:57,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:13:57,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:57,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:13:57,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:13:57,780 INFO L87 Difference]: Start difference. First operand 2673 states and 3249 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:13:59,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:59,859 INFO L93 Difference]: Finished difference Result 6369 states and 7652 transitions. [2024-11-28 03:13:59,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:13:59,860 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-11-28 03:13:59,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:59,864 INFO L225 Difference]: With dead ends: 6369 [2024-11-28 03:13:59,864 INFO L226 Difference]: Without dead ends: 3699 [2024-11-28 03:13:59,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:13:59,866 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 240 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:59,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 819 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:13:59,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2024-11-28 03:14:00,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 3171. [2024-11-28 03:14:00,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3171 states, 3066 states have (on average 1.1986301369863013) internal successors, (3675), 3068 states have internal predecessors, (3675), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:14:00,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3171 states to 3171 states and 3803 transitions. [2024-11-28 03:14:00,102 INFO L78 Accepts]: Start accepts. Automaton has 3171 states and 3803 transitions. Word has length 160 [2024-11-28 03:14:00,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:00,103 INFO L471 AbstractCegarLoop]: Abstraction has 3171 states and 3803 transitions. [2024-11-28 03:14:00,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:00,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3171 states and 3803 transitions. [2024-11-28 03:14:00,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:14:00,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:00,105 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:00,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Ended with exit code 0 [2024-11-28 03:14:00,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:00,305 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:00,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:00,306 INFO L85 PathProgramCache]: Analyzing trace with hash -143303116, now seen corresponding path program 1 times [2024-11-28 03:14:00,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:14:00,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904972186] [2024-11-28 03:14:00,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:00,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:00,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:14:00,308 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:14:00,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2024-11-28 03:14:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:00,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:14:00,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:00,652 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2024-11-28 03:14:00,652 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:14:00,652 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:14:00,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904972186] [2024-11-28 03:14:00,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904972186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:00,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:00,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:14:00,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327445374] [2024-11-28 03:14:00,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:00,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:14:00,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:14:00,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:14:00,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:00,654 INFO L87 Difference]: Start difference. First operand 3171 states and 3803 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:14:00,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:00,931 INFO L93 Difference]: Finished difference Result 6339 states and 7603 transitions. [2024-11-28 03:14:00,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:14:00,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2024-11-28 03:14:00,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:00,935 INFO L225 Difference]: With dead ends: 6339 [2024-11-28 03:14:00,935 INFO L226 Difference]: Without dead ends: 3171 [2024-11-28 03:14:00,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:00,937 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:00,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 478 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:14:00,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2024-11-28 03:14:01,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 3171. [2024-11-28 03:14:01,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3171 states, 3066 states have (on average 1.1979778212654926) internal successors, (3673), 3068 states have internal predecessors, (3673), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:14:01,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3171 states to 3171 states and 3801 transitions. [2024-11-28 03:14:01,178 INFO L78 Accepts]: Start accepts. Automaton has 3171 states and 3801 transitions. Word has length 160 [2024-11-28 03:14:01,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:01,178 INFO L471 AbstractCegarLoop]: Abstraction has 3171 states and 3801 transitions. [2024-11-28 03:14:01,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:14:01,178 INFO L276 IsEmpty]: Start isEmpty. Operand 3171 states and 3801 transitions. [2024-11-28 03:14:01,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 03:14:01,180 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:01,180 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:01,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Ended with exit code 0 [2024-11-28 03:14:01,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:01,380 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:01,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:01,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1588081533, now seen corresponding path program 1 times [2024-11-28 03:14:01,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:14:01,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331960549] [2024-11-28 03:14:01,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:01,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:01,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:14:01,383 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:14:01,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2024-11-28 03:14:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:01,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 03:14:01,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:01,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:14:03,464 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:14:03,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 33 [2024-11-28 03:14:03,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2024-11-28 03:14:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:14:03,886 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:04,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:14:04,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 1 [2024-11-28 03:14:04,872 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:14:04,873 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:14:04,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331960549] [2024-11-28 03:14:04,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331960549] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:04,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:14:04,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [21] total 30 [2024-11-28 03:14:04,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974096978] [2024-11-28 03:14:04,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:04,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:14:04,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:14:04,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:14:04,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:14:04,874 INFO L87 Difference]: Start difference. First operand 3171 states and 3801 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:07,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:07,446 INFO L93 Difference]: Finished difference Result 7870 states and 9357 transitions. [2024-11-28 03:14:07,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:14:07,447 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-28 03:14:07,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:07,453 INFO L225 Difference]: With dead ends: 7870 [2024-11-28 03:14:07,453 INFO L226 Difference]: Without dead ends: 4702 [2024-11-28 03:14:07,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=167, Invalid=1023, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 03:14:07,457 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 352 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:07,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 1005 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:14:07,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4702 states. [2024-11-28 03:14:07,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4702 to 3523. [2024-11-28 03:14:07,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3523 states, 3418 states have (on average 1.2062609713282622) internal successors, (4123), 3420 states have internal predecessors, (4123), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:14:07,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3523 states to 3523 states and 4251 transitions. [2024-11-28 03:14:07,726 INFO L78 Accepts]: Start accepts. Automaton has 3523 states and 4251 transitions. Word has length 162 [2024-11-28 03:14:07,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:07,726 INFO L471 AbstractCegarLoop]: Abstraction has 3523 states and 4251 transitions. [2024-11-28 03:14:07,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:07,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3523 states and 4251 transitions. [2024-11-28 03:14:07,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 03:14:07,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:07,728 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:07,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Ended with exit code 0 [2024-11-28 03:14:07,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:07,929 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:07,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:07,929 INFO L85 PathProgramCache]: Analyzing trace with hash 517281720, now seen corresponding path program 1 times [2024-11-28 03:14:07,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:14:07,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98300034] [2024-11-28 03:14:07,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:07,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:07,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:14:07,932 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:14:07,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2024-11-28 03:14:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:08,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:14:08,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:08,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:14:08,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-28 03:14:09,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:14:09,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 39 [2024-11-28 03:14:09,772 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:14:09,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 39 [2024-11-28 03:14:09,926 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 288 proven. 39 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-28 03:14:09,927 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:10,341 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:14:10,341 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:14:10,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98300034] [2024-11-28 03:14:10,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98300034] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:10,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:14:10,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 20 [2024-11-28 03:14:10,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772592861] [2024-11-28 03:14:10,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:10,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:14:10,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:14:10,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:14:10,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:14:10,343 INFO L87 Difference]: Start difference. First operand 3523 states and 4251 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:11,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:11,349 INFO L93 Difference]: Finished difference Result 3591 states and 4331 transitions. [2024-11-28 03:14:11,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:14:11,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-28 03:14:11,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:11,354 INFO L225 Difference]: With dead ends: 3591 [2024-11-28 03:14:11,354 INFO L226 Difference]: Without dead ends: 3589 [2024-11-28 03:14:11,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:14:11,355 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 52 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:11,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1155 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:14:11,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3589 states. [2024-11-28 03:14:11,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3589 to 3537. [2024-11-28 03:14:11,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 3432 states have (on average 1.2065850815850816) internal successors, (4141), 3434 states have internal predecessors, (4141), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:14:11,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 4269 transitions. [2024-11-28 03:14:11,678 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 4269 transitions. Word has length 162 [2024-11-28 03:14:11,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:11,678 INFO L471 AbstractCegarLoop]: Abstraction has 3537 states and 4269 transitions. [2024-11-28 03:14:11,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:11,678 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 4269 transitions. [2024-11-28 03:14:11,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 03:14:11,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:11,680 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:11,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Ended with exit code 0 [2024-11-28 03:14:11,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:11,881 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:11,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:11,881 INFO L85 PathProgramCache]: Analyzing trace with hash -292064906, now seen corresponding path program 1 times [2024-11-28 03:14:11,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:14:11,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121237149] [2024-11-28 03:14:11,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:11,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:11,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:14:11,884 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:14:11,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2024-11-28 03:14:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:12,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:14:12,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:12,515 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:14:12,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 16 [2024-11-28 03:14:12,547 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:14:12,547 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:14:12,547 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:14:12,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121237149] [2024-11-28 03:14:12,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121237149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:12,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:12,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:12,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132095524] [2024-11-28 03:14:12,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:12,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:12,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:14:12,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:12,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:12,549 INFO L87 Difference]: Start difference. First operand 3537 states and 4269 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:13,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:13,625 INFO L93 Difference]: Finished difference Result 7280 states and 8764 transitions. [2024-11-28 03:14:13,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:13,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-28 03:14:13,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:13,631 INFO L225 Difference]: With dead ends: 7280 [2024-11-28 03:14:13,631 INFO L226 Difference]: Without dead ends: 3746 [2024-11-28 03:14:13,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:14:13,634 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 82 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:13,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 583 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:14:13,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2024-11-28 03:14:13,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3537. [2024-11-28 03:14:13,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 3432 states have (on average 1.206002331002331) internal successors, (4139), 3434 states have internal predecessors, (4139), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:14:13,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 4267 transitions. [2024-11-28 03:14:13,884 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 4267 transitions. Word has length 162 [2024-11-28 03:14:13,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:13,885 INFO L471 AbstractCegarLoop]: Abstraction has 3537 states and 4267 transitions. [2024-11-28 03:14:13,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:13,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 4267 transitions. [2024-11-28 03:14:13,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 03:14:13,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:13,887 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:13,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2024-11-28 03:14:14,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:14,087 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:14,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:14,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1173287109, now seen corresponding path program 1 times [2024-11-28 03:14:14,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:14:14,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581261790] [2024-11-28 03:14:14,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:14,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:14,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:14:14,090 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:14:14,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2024-11-28 03:14:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:14,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 03:14:14,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:14,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:14:17,354 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:14:17,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 53 [2024-11-28 03:14:17,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 54 [2024-11-28 03:14:17,611 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:14:17,611 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:18,702 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:14:18,702 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:14:18,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581261790] [2024-11-28 03:14:18,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581261790] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:18,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:14:18,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [24] total 34 [2024-11-28 03:14:18,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547192176] [2024-11-28 03:14:18,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:18,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:14:18,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:14:18,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:14:18,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=947, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:14:18,704 INFO L87 Difference]: Start difference. First operand 3537 states and 4267 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:21,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:21,479 INFO L93 Difference]: Finished difference Result 8298 states and 9879 transitions. [2024-11-28 03:14:21,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:14:21,480 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-28 03:14:21,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:21,487 INFO L225 Difference]: With dead ends: 8298 [2024-11-28 03:14:21,488 INFO L226 Difference]: Without dead ends: 4764 [2024-11-28 03:14:21,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=262, Invalid=1298, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 03:14:21,492 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 360 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:21,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1201 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:14:21,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4764 states. [2024-11-28 03:14:21,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4764 to 3657. [2024-11-28 03:14:21,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3657 states, 3552 states have (on average 1.2001689189189189) internal successors, (4263), 3554 states have internal predecessors, (4263), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:14:21,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3657 states to 3657 states and 4391 transitions. [2024-11-28 03:14:21,881 INFO L78 Accepts]: Start accepts. Automaton has 3657 states and 4391 transitions. Word has length 162 [2024-11-28 03:14:21,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:21,881 INFO L471 AbstractCegarLoop]: Abstraction has 3657 states and 4391 transitions. [2024-11-28 03:14:21,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:21,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3657 states and 4391 transitions. [2024-11-28 03:14:21,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 03:14:21,884 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:21,884 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:21,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2024-11-28 03:14:22,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:22,084 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:22,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:22,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1201622149, now seen corresponding path program 1 times [2024-11-28 03:14:22,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:14:22,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460011699] [2024-11-28 03:14:22,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:22,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:22,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:14:22,088 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:14:22,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2024-11-28 03:14:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:22,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 03:14:22,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:22,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:14:24,954 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:14:24,954 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:26,228 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:14:26,229 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:14:26,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1460011699] [2024-11-28 03:14:26,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1460011699] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:26,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:14:26,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [23] total 34 [2024-11-28 03:14:26,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098719297] [2024-11-28 03:14:26,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:26,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:14:26,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:14:26,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:14:26,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=938, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:14:26,230 INFO L87 Difference]: Start difference. First operand 3657 states and 4391 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:29,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:29,351 INFO L93 Difference]: Finished difference Result 8418 states and 10003 transitions. [2024-11-28 03:14:29,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:14:29,352 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-28 03:14:29,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:29,357 INFO L225 Difference]: With dead ends: 8418 [2024-11-28 03:14:29,357 INFO L226 Difference]: Without dead ends: 4764 [2024-11-28 03:14:29,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=292, Invalid=1348, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 03:14:29,359 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 497 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:29,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1321 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:14:29,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4764 states. [2024-11-28 03:14:29,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4764 to 3749. [2024-11-28 03:14:29,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3749 states, 3644 states have (on average 1.1962129527991219) internal successors, (4359), 3646 states have internal predecessors, (4359), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:14:29,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3749 states to 3749 states and 4487 transitions. [2024-11-28 03:14:29,613 INFO L78 Accepts]: Start accepts. Automaton has 3749 states and 4487 transitions. Word has length 162 [2024-11-28 03:14:29,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:29,613 INFO L471 AbstractCegarLoop]: Abstraction has 3749 states and 4487 transitions. [2024-11-28 03:14:29,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:29,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3749 states and 4487 transitions. [2024-11-28 03:14:29,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 03:14:29,615 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:29,615 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:29,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2024-11-28 03:14:29,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:29,817 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:29,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:29,817 INFO L85 PathProgramCache]: Analyzing trace with hash -286882555, now seen corresponding path program 1 times [2024-11-28 03:14:29,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:14:29,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568801219] [2024-11-28 03:14:29,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:29,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:29,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:14:29,820 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:14:29,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2024-11-28 03:14:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:30,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-28 03:14:30,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:33,124 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:14:33,124 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:34,968 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:14:34,968 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:14:34,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568801219] [2024-11-28 03:14:34,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568801219] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:34,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:14:34,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [21] total 32 [2024-11-28 03:14:34,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046353467] [2024-11-28 03:14:34,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:34,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:14:34,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:14:34,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:14:34,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=793, Unknown=0, NotChecked=0, Total=992 [2024-11-28 03:14:34,970 INFO L87 Difference]: Start difference. First operand 3749 states and 4487 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:40,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:40,238 INFO L93 Difference]: Finished difference Result 7940 states and 9477 transitions. [2024-11-28 03:14:40,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:14:40,239 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-28 03:14:40,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:40,245 INFO L225 Difference]: With dead ends: 7940 [2024-11-28 03:14:40,245 INFO L226 Difference]: Without dead ends: 4194 [2024-11-28 03:14:40,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=341, Invalid=1219, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 03:14:40,248 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 219 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:40,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1597 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-28 03:14:40,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4194 states. [2024-11-28 03:14:40,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4194 to 3733. [2024-11-28 03:14:40,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3733 states, 3628 states have (on average 1.1970782800441013) internal successors, (4343), 3630 states have internal predecessors, (4343), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:14:40,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 4471 transitions. [2024-11-28 03:14:40,550 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 4471 transitions. Word has length 162 [2024-11-28 03:14:40,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:40,551 INFO L471 AbstractCegarLoop]: Abstraction has 3733 states and 4471 transitions. [2024-11-28 03:14:40,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:40,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 4471 transitions. [2024-11-28 03:14:40,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 03:14:40,553 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:40,554 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:40,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Ended with exit code 0 [2024-11-28 03:14:40,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:40,754 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:40,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:40,755 INFO L85 PathProgramCache]: Analyzing trace with hash 400645057, now seen corresponding path program 1 times [2024-11-28 03:14:40,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:14:40,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625983563] [2024-11-28 03:14:40,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:40,755 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:40,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:14:40,760 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:14:40,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2024-11-28 03:14:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:41,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 03:14:41,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:41,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:14:44,496 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:14:44,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 111 treesize of output 55 [2024-11-28 03:14:44,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2024-11-28 03:14:44,770 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:14:44,770 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:14:46,537 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:14:46,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625983563] [2024-11-28 03:14:46,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625983563] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:46,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:14:46,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [23] total 34 [2024-11-28 03:14:46,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089176979] [2024-11-28 03:14:46,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:46,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:14:46,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:14:46,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:14:46,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=940, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:14:46,539 INFO L87 Difference]: Start difference. First operand 3733 states and 4471 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:50,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:50,309 INFO L93 Difference]: Finished difference Result 6229 states and 7487 transitions. [2024-11-28 03:14:50,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:14:50,310 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-28 03:14:50,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:50,315 INFO L225 Difference]: With dead ends: 6229 [2024-11-28 03:14:50,315 INFO L226 Difference]: Without dead ends: 4070 [2024-11-28 03:14:50,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=300, Invalid=1340, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 03:14:50,318 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 356 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:50,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1229 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 03:14:50,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4070 states. [2024-11-28 03:14:50,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4070 to 3727. [2024-11-28 03:14:50,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3727 states, 3622 states have (on average 1.1974047487575925) internal successors, (4337), 3624 states have internal predecessors, (4337), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:14:50,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 4465 transitions. [2024-11-28 03:14:50,675 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 4465 transitions. Word has length 162 [2024-11-28 03:14:50,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:50,675 INFO L471 AbstractCegarLoop]: Abstraction has 3727 states and 4465 transitions. [2024-11-28 03:14:50,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:14:50,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 4465 transitions. [2024-11-28 03:14:50,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 03:14:50,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:50,677 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:50,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2024-11-28 03:14:50,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:50,878 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:50,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:50,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1764231800, now seen corresponding path program 1 times [2024-11-28 03:14:50,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:14:50,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114787437] [2024-11-28 03:14:50,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:50,879 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:50,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:14:50,881 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:14:50,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2024-11-28 03:14:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:51,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 03:14:51,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:51,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 10 [2024-11-28 03:14:57,308 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:14:57,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 196 treesize of output 100 [2024-11-28 03:14:57,884 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:14:57,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 392 treesize of output 136 [2024-11-28 03:14:58,148 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 10 proven. 382 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-28 03:14:58,148 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:58,830 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:14:58,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114787437] [2024-11-28 03:14:58,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114787437] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:58,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [368282568] [2024-11-28 03:14:58,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:58,831 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:14:58,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:14:58,833 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:14:58,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2024-11-28 03:15:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:00,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 03:15:00,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:04,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2024-11-28 03:15:14,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:15:14,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 156 treesize of output 94 [2024-11-28 03:15:15,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:15:15,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 289 treesize of output 145 [2024-11-28 03:15:15,630 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 10 proven. 382 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-28 03:15:15,630 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:15:16,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [368282568] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:15:16,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:15:16,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 26 [2024-11-28 03:15:16,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482292727] [2024-11-28 03:15:16,019 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:15:16,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 03:15:16,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:15:16,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 03:15:16,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=868, Unknown=3, NotChecked=0, Total=992 [2024-11-28 03:15:16,020 INFO L87 Difference]: Start difference. First operand 3727 states and 4465 transitions. Second operand has 27 states, 25 states have (on average 5.64) internal successors, (141), 24 states have internal predecessors, (141), 6 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) [2024-11-28 03:15:24,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:24,128 INFO L93 Difference]: Finished difference Result 10575 states and 12594 transitions. [2024-11-28 03:15:24,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-28 03:15:24,128 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 5.64) internal successors, (141), 24 states have internal predecessors, (141), 6 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) Word has length 162 [2024-11-28 03:15:24,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:24,137 INFO L225 Difference]: With dead ends: 10575 [2024-11-28 03:15:24,137 INFO L226 Difference]: Without dead ends: 6851 [2024-11-28 03:15:24,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 370 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 849 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=564, Invalid=3093, Unknown=3, NotChecked=0, Total=3660 [2024-11-28 03:15:24,141 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 1059 mSDsluCounter, 2574 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:24,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 2779 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 03:15:24,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6851 states. [2024-11-28 03:15:24,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6851 to 3729. [2024-11-28 03:15:24,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3729 states, 3624 states have (on average 1.1972958057395144) internal successors, (4339), 3626 states have internal predecessors, (4339), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 03:15:24,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3729 states to 3729 states and 4467 transitions. [2024-11-28 03:15:24,545 INFO L78 Accepts]: Start accepts. Automaton has 3729 states and 4467 transitions. Word has length 162 [2024-11-28 03:15:24,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:24,591 INFO L471 AbstractCegarLoop]: Abstraction has 3729 states and 4467 transitions. [2024-11-28 03:15:24,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 5.64) internal successors, (141), 24 states have internal predecessors, (141), 6 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) [2024-11-28 03:15:24,591 INFO L276 IsEmpty]: Start isEmpty. Operand 3729 states and 4467 transitions. [2024-11-28 03:15:24,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 03:15:24,594 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:24,594 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:24,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Ended with exit code 0 [2024-11-28 03:15:24,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (67)] Ended with exit code 0 [2024-11-28 03:15:24,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:15:24,998 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:24,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:24,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1140950198, now seen corresponding path program 1 times [2024-11-28 03:15:25,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:15:25,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005449423] [2024-11-28 03:15:25,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:25,000 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:25,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:15:25,002 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:15:25,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2024-11-28 03:15:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:25,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:15:25,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-28 03:15:25,505 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:15:25,505 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:15:25,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005449423] [2024-11-28 03:15:25,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005449423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:25,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:25,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:15:25,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256062252] [2024-11-28 03:15:25,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:25,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:15:25,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:15:25,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:15:25,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:15:25,507 INFO L87 Difference]: Start difference. First operand 3729 states and 4467 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:15:26,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:26,102 INFO L93 Difference]: Finished difference Result 6603 states and 7857 transitions. [2024-11-28 03:15:26,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:15:26,103 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 162 [2024-11-28 03:15:26,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:26,109 INFO L225 Difference]: With dead ends: 6603 [2024-11-28 03:15:26,109 INFO L226 Difference]: Without dead ends: 2865 [2024-11-28 03:15:26,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:15:26,112 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:26,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 665 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:15:26,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2024-11-28 03:15:26,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 2841. [2024-11-28 03:15:26,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2773 states have (on average 1.1795888928957807) internal successors, (3271), 2775 states have internal predecessors, (3271), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:15:26,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 3355 transitions. [2024-11-28 03:15:26,377 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 3355 transitions. Word has length 162 [2024-11-28 03:15:26,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:26,377 INFO L471 AbstractCegarLoop]: Abstraction has 2841 states and 3355 transitions. [2024-11-28 03:15:26,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:15:26,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 3355 transitions. [2024-11-28 03:15:26,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 03:15:26,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:26,380 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:26,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Ended with exit code 0 [2024-11-28 03:15:26,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:26,580 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:26,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:26,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1119322743, now seen corresponding path program 1 times [2024-11-28 03:15:26,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:15:26,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [673256125] [2024-11-28 03:15:26,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:26,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:26,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:15:26,587 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:15:26,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2024-11-28 03:15:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:27,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 03:15:27,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:27,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:15:28,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:15:28,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 35 [2024-11-28 03:15:28,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2024-11-28 03:15:29,208 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:15:29,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:15:29,907 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:15:29,907 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:15:29,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [673256125] [2024-11-28 03:15:29,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [673256125] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:15:29,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:15:29,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18] total 22 [2024-11-28 03:15:29,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128431884] [2024-11-28 03:15:29,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:29,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:29,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:15:29,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:29,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:15:29,908 INFO L87 Difference]: Start difference. First operand 2841 states and 3355 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:30,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:30,858 INFO L93 Difference]: Finished difference Result 6139 states and 7212 transitions. [2024-11-28 03:15:30,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:15:30,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 164 [2024-11-28 03:15:30,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:30,864 INFO L225 Difference]: With dead ends: 6139 [2024-11-28 03:15:30,864 INFO L226 Difference]: Without dead ends: 3301 [2024-11-28 03:15:30,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:15:30,867 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 142 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:30,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 565 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:15:30,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3301 states. [2024-11-28 03:15:31,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3301 to 2891. [2024-11-28 03:15:31,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2891 states, 2823 states have (on average 1.1721572794899044) internal successors, (3309), 2825 states have internal predecessors, (3309), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:15:31,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 3393 transitions. [2024-11-28 03:15:31,210 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 3393 transitions. Word has length 164 [2024-11-28 03:15:31,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:31,211 INFO L471 AbstractCegarLoop]: Abstraction has 2891 states and 3393 transitions. [2024-11-28 03:15:31,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:31,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 3393 transitions. [2024-11-28 03:15:31,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 03:15:31,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:31,214 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:31,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Ended with exit code 0 [2024-11-28 03:15:31,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:31,414 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:31,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:31,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1859047634, now seen corresponding path program 1 times [2024-11-28 03:15:31,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:15:31,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734310785] [2024-11-28 03:15:31,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:31,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:31,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:15:31,417 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:15:31,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2024-11-28 03:15:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:32,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 03:15:32,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:32,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:15:32,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 03:15:32,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 03:15:32,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-28 03:15:33,160 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:15:33,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 42 [2024-11-28 03:15:33,716 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 296 proven. 51 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-28 03:15:33,716 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:15:33,995 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:15:33,995 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:15:33,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734310785] [2024-11-28 03:15:33,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734310785] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:15:33,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:15:33,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 13 [2024-11-28 03:15:33,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773730002] [2024-11-28 03:15:33,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:33,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:33,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:15:33,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:33,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:15:33,997 INFO L87 Difference]: Start difference. First operand 2891 states and 3393 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:34,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:34,427 INFO L93 Difference]: Finished difference Result 5821 states and 6830 transitions. [2024-11-28 03:15:34,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:15:34,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 165 [2024-11-28 03:15:34,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:34,432 INFO L225 Difference]: With dead ends: 5821 [2024-11-28 03:15:34,432 INFO L226 Difference]: Without dead ends: 2933 [2024-11-28 03:15:34,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:15:34,435 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 77 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:34,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 505 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:15:34,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2024-11-28 03:15:34,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2891. [2024-11-28 03:15:34,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2891 states, 2823 states have (on average 1.1700318809776833) internal successors, (3303), 2825 states have internal predecessors, (3303), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:15:34,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 3387 transitions. [2024-11-28 03:15:34,692 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 3387 transitions. Word has length 165 [2024-11-28 03:15:34,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:34,692 INFO L471 AbstractCegarLoop]: Abstraction has 2891 states and 3387 transitions. [2024-11-28 03:15:34,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:34,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 3387 transitions. [2024-11-28 03:15:34,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 03:15:34,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:34,695 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:34,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Ended with exit code 0 [2024-11-28 03:15:34,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:34,895 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:34,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:34,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1015042132, now seen corresponding path program 1 times [2024-11-28 03:15:34,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:15:34,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304522495] [2024-11-28 03:15:34,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:34,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:34,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:15:34,899 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:15:34,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2024-11-28 03:15:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:35,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:15:35,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:35,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:15:35,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-28 03:15:35,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-28 03:15:37,404 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:15:37,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 48 [2024-11-28 03:15:38,173 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 318 proven. 45 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-11-28 03:15:38,173 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:15:38,474 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:15:38,474 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:15:38,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304522495] [2024-11-28 03:15:38,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304522495] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:15:38,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:15:38,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2024-11-28 03:15:38,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351693963] [2024-11-28 03:15:38,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:38,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:38,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:15:38,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:38,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:15:38,477 INFO L87 Difference]: Start difference. First operand 2891 states and 3387 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:38,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:38,970 INFO L93 Difference]: Finished difference Result 5837 states and 6836 transitions. [2024-11-28 03:15:38,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:15:38,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 165 [2024-11-28 03:15:38,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:38,975 INFO L225 Difference]: With dead ends: 5837 [2024-11-28 03:15:38,976 INFO L226 Difference]: Without dead ends: 2949 [2024-11-28 03:15:38,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:15:38,978 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 86 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:38,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 566 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:15:38,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2024-11-28 03:15:39,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 2914. [2024-11-28 03:15:39,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2846 states have (on average 1.168306394940267) internal successors, (3325), 2848 states have internal predecessors, (3325), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:15:39,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3409 transitions. [2024-11-28 03:15:39,250 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3409 transitions. Word has length 165 [2024-11-28 03:15:39,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:39,250 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 3409 transitions. [2024-11-28 03:15:39,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:39,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3409 transitions. [2024-11-28 03:15:39,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-28 03:15:39,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:39,252 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:39,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2024-11-28 03:15:39,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:39,453 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:39,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:39,453 INFO L85 PathProgramCache]: Analyzing trace with hash 73355486, now seen corresponding path program 1 times [2024-11-28 03:15:39,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:15:39,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567940216] [2024-11-28 03:15:39,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:39,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:39,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:15:39,456 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:15:39,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2024-11-28 03:15:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:40,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 03:15:40,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:40,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:15:40,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2024-11-28 03:15:41,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:15:41,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 40 [2024-11-28 03:15:41,568 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 332 proven. 66 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-11-28 03:15:41,568 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:15:42,008 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:15:42,008 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:15:42,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567940216] [2024-11-28 03:15:42,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567940216] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:15:42,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:15:42,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 21 [2024-11-28 03:15:42,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624897321] [2024-11-28 03:15:42,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:42,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:15:42,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:15:42,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:15:42,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:15:42,010 INFO L87 Difference]: Start difference. First operand 2914 states and 3409 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:43,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:43,057 INFO L93 Difference]: Finished difference Result 3032 states and 3547 transitions. [2024-11-28 03:15:43,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:15:43,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 167 [2024-11-28 03:15:43,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:43,061 INFO L225 Difference]: With dead ends: 3032 [2024-11-28 03:15:43,062 INFO L226 Difference]: Without dead ends: 3030 [2024-11-28 03:15:43,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:15:43,063 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 56 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:43,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1360 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:15:43,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2024-11-28 03:15:43,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2914. [2024-11-28 03:15:43,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2846 states have (on average 1.168306394940267) internal successors, (3325), 2848 states have internal predecessors, (3325), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:15:43,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3409 transitions. [2024-11-28 03:15:43,314 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3409 transitions. Word has length 167 [2024-11-28 03:15:43,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:43,314 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 3409 transitions. [2024-11-28 03:15:43,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:43,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3409 transitions. [2024-11-28 03:15:43,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-28 03:15:43,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:43,316 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:43,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Ended with exit code 0 [2024-11-28 03:15:43,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:43,517 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:43,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:43,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1059972441, now seen corresponding path program 1 times [2024-11-28 03:15:43,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:15:43,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359094579] [2024-11-28 03:15:43,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:43,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:43,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:15:43,520 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:15:43,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2024-11-28 03:15:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:44,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 03:15:44,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:44,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:15:45,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-11-28 03:15:45,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:15:45,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 35 [2024-11-28 03:15:45,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2024-11-28 03:15:46,286 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:15:46,286 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:15:46,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2024-11-28 03:15:47,152 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:15:47,152 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:15:47,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359094579] [2024-11-28 03:15:47,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359094579] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:15:47,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:15:47,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 24 [2024-11-28 03:15:47,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278607736] [2024-11-28 03:15:47,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:47,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:15:47,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:15:47,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:15:47,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:15:47,154 INFO L87 Difference]: Start difference. First operand 2914 states and 3409 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:49,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:49,368 INFO L93 Difference]: Finished difference Result 6572 states and 7638 transitions. [2024-11-28 03:15:49,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:15:49,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 169 [2024-11-28 03:15:49,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:49,374 INFO L225 Difference]: With dead ends: 6572 [2024-11-28 03:15:49,374 INFO L226 Difference]: Without dead ends: 3661 [2024-11-28 03:15:49,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:15:49,377 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 158 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:49,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 776 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:15:49,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3661 states. [2024-11-28 03:15:49,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3661 to 3062. [2024-11-28 03:15:49,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 2994 states have (on average 1.1639946559786238) internal successors, (3485), 2996 states have internal predecessors, (3485), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:15:49,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 3569 transitions. [2024-11-28 03:15:49,696 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 3569 transitions. Word has length 169 [2024-11-28 03:15:49,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:49,696 INFO L471 AbstractCegarLoop]: Abstraction has 3062 states and 3569 transitions. [2024-11-28 03:15:49,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:49,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 3569 transitions. [2024-11-28 03:15:49,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 03:15:49,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:49,700 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:49,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Ended with exit code 0 [2024-11-28 03:15:49,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:49,901 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:49,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:49,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1603193507, now seen corresponding path program 1 times [2024-11-28 03:15:49,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:15:49,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614993125] [2024-11-28 03:15:49,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:49,902 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:49,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:15:49,904 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:15:49,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2024-11-28 03:15:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:50,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:15:50,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:50,537 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:15:50,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-11-28 03:15:50,579 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:15:50,579 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:15:50,579 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:15:50,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614993125] [2024-11-28 03:15:50,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614993125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:50,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:50,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:15:50,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717510872] [2024-11-28 03:15:50,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:50,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:50,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:15:50,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:50,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:15:50,581 INFO L87 Difference]: Start difference. First operand 3062 states and 3569 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:51,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:51,863 INFO L93 Difference]: Finished difference Result 6271 states and 7298 transitions. [2024-11-28 03:15:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:15:51,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 170 [2024-11-28 03:15:51,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:51,871 INFO L225 Difference]: With dead ends: 6271 [2024-11-28 03:15:51,871 INFO L226 Difference]: Without dead ends: 3076 [2024-11-28 03:15:51,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:15:51,874 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 99 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:51,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 768 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:15:51,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3076 states. [2024-11-28 03:15:52,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3076 to 2888. [2024-11-28 03:15:52,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 2820 states have (on average 1.1606382978723404) internal successors, (3273), 2822 states have internal predecessors, (3273), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:15:52,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3357 transitions. [2024-11-28 03:15:52,156 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3357 transitions. Word has length 170 [2024-11-28 03:15:52,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:52,157 INFO L471 AbstractCegarLoop]: Abstraction has 2888 states and 3357 transitions. [2024-11-28 03:15:52,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:52,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3357 transitions. [2024-11-28 03:15:52,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 03:15:52,158 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:52,159 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:52,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Forceful destruction successful, exit code 0 [2024-11-28 03:15:52,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:52,359 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:52,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:52,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1711282589, now seen corresponding path program 1 times [2024-11-28 03:15:52,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:15:52,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487287686] [2024-11-28 03:15:52,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:52,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:52,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:15:52,363 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:15:52,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2024-11-28 03:15:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:52,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:15:52,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:53,116 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:15:53,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-11-28 03:15:53,155 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:15:53,156 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:15:53,156 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:15:53,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487287686] [2024-11-28 03:15:53,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487287686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:53,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:53,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:15:53,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766348993] [2024-11-28 03:15:53,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:53,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:53,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:15:53,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:53,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:15:53,157 INFO L87 Difference]: Start difference. First operand 2888 states and 3357 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:54,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:54,444 INFO L93 Difference]: Finished difference Result 5959 states and 6920 transitions. [2024-11-28 03:15:54,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:15:54,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 170 [2024-11-28 03:15:54,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:54,450 INFO L225 Difference]: With dead ends: 5959 [2024-11-28 03:15:54,450 INFO L226 Difference]: Without dead ends: 3074 [2024-11-28 03:15:54,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:15:54,453 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 77 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:54,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 763 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:15:54,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3074 states. [2024-11-28 03:15:54,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3074 to 2892. [2024-11-28 03:15:54,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2892 states, 2824 states have (on average 1.1604107648725213) internal successors, (3277), 2826 states have internal predecessors, (3277), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:15:54,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 3361 transitions. [2024-11-28 03:15:54,709 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 3361 transitions. Word has length 170 [2024-11-28 03:15:54,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:54,709 INFO L471 AbstractCegarLoop]: Abstraction has 2892 states and 3361 transitions. [2024-11-28 03:15:54,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:54,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 3361 transitions. [2024-11-28 03:15:54,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 03:15:54,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:54,712 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:54,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Forceful destruction successful, exit code 0 [2024-11-28 03:15:54,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:54,912 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:54,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:54,913 INFO L85 PathProgramCache]: Analyzing trace with hash 901935963, now seen corresponding path program 1 times [2024-11-28 03:15:54,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:15:54,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243091702] [2024-11-28 03:15:54,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:54,913 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:54,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:15:54,915 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:15:54,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2024-11-28 03:15:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:55,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:15:55,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:55,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:15:55,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2024-11-28 03:15:55,675 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:15:55,675 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:15:55,676 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:15:55,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [243091702] [2024-11-28 03:15:55,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [243091702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:55,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:55,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:15:55,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194695688] [2024-11-28 03:15:55,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:55,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:15:55,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:15:55,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:15:55,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:15:55,677 INFO L87 Difference]: Start difference. First operand 2892 states and 3361 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:56,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:56,715 INFO L93 Difference]: Finished difference Result 3434 states and 4109 transitions. [2024-11-28 03:15:56,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:15:56,716 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 170 [2024-11-28 03:15:56,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:56,721 INFO L225 Difference]: With dead ends: 3434 [2024-11-28 03:15:56,721 INFO L226 Difference]: Without dead ends: 3432 [2024-11-28 03:15:56,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:15:56,722 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 120 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 2122 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:56,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 2122 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:15:56,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2024-11-28 03:15:57,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 2892. [2024-11-28 03:15:57,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2892 states, 2824 states have (on average 1.1604107648725213) internal successors, (3277), 2826 states have internal predecessors, (3277), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:15:57,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 3361 transitions. [2024-11-28 03:15:57,037 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 3361 transitions. Word has length 170 [2024-11-28 03:15:57,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:57,037 INFO L471 AbstractCegarLoop]: Abstraction has 2892 states and 3361 transitions. [2024-11-28 03:15:57,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:15:57,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 3361 transitions. [2024-11-28 03:15:57,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-28 03:15:57,039 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:57,040 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:57,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Forceful destruction successful, exit code 0 [2024-11-28 03:15:57,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:57,240 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:15:57,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:57,241 INFO L85 PathProgramCache]: Analyzing trace with hash -352286193, now seen corresponding path program 1 times [2024-11-28 03:15:57,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:15:57,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038849599] [2024-11-28 03:15:57,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:57,241 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:15:57,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:15:57,243 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:15:57,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2024-11-28 03:15:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:57,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 03:15:57,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:57,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:15:59,919 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:15:59,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 37 [2024-11-28 03:15:59,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2024-11-28 03:16:00,132 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:16:00,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:16:01,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:16:01,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 1 [2024-11-28 03:16:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:16:01,324 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:16:01,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038849599] [2024-11-28 03:16:01,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038849599] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:16:01,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:16:01,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [21] total 30 [2024-11-28 03:16:01,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848657322] [2024-11-28 03:16:01,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:01,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:16:01,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:16:01,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:16:01,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:16:01,326 INFO L87 Difference]: Start difference. First operand 2892 states and 3361 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:16:04,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:16:04,019 INFO L93 Difference]: Finished difference Result 6229 states and 7214 transitions. [2024-11-28 03:16:04,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:16:04,020 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 171 [2024-11-28 03:16:04,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:16:04,025 INFO L225 Difference]: With dead ends: 6229 [2024-11-28 03:16:04,025 INFO L226 Difference]: Without dead ends: 3340 [2024-11-28 03:16:04,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=167, Invalid=1023, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 03:16:04,028 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 293 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:16:04,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 1036 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:16:04,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2024-11-28 03:16:04,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 2910. [2024-11-28 03:16:04,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2910 states, 2842 states have (on average 1.161505981703026) internal successors, (3301), 2844 states have internal predecessors, (3301), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:16:04,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2910 states to 2910 states and 3385 transitions. [2024-11-28 03:16:04,305 INFO L78 Accepts]: Start accepts. Automaton has 2910 states and 3385 transitions. Word has length 171 [2024-11-28 03:16:04,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:16:04,305 INFO L471 AbstractCegarLoop]: Abstraction has 2910 states and 3385 transitions. [2024-11-28 03:16:04,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:16:04,306 INFO L276 IsEmpty]: Start isEmpty. Operand 2910 states and 3385 transitions. [2024-11-28 03:16:04,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-28 03:16:04,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:16:04,308 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:04,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2024-11-28 03:16:04,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:16:04,508 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:16:04,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:04,509 INFO L85 PathProgramCache]: Analyzing trace with hash 586628691, now seen corresponding path program 1 times [2024-11-28 03:16:04,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:16:04,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268513514] [2024-11-28 03:16:04,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:04,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:16:04,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:16:04,512 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:16:04,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2024-11-28 03:16:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:05,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 03:16:05,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:16:05,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:16:08,409 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:16:08,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 54 [2024-11-28 03:16:08,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2024-11-28 03:16:08,669 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:16:08,669 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:16:09,980 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:16:09,981 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:16:09,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268513514] [2024-11-28 03:16:09,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268513514] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:16:09,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:16:09,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [24] total 34 [2024-11-28 03:16:09,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299736388] [2024-11-28 03:16:09,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:09,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:16:09,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:16:09,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:16:09,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=947, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:16:09,982 INFO L87 Difference]: Start difference. First operand 2910 states and 3385 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:16:13,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:16:13,178 INFO L93 Difference]: Finished difference Result 6261 states and 7250 transitions. [2024-11-28 03:16:13,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:16:13,179 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 171 [2024-11-28 03:16:13,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:16:13,183 INFO L225 Difference]: With dead ends: 6261 [2024-11-28 03:16:13,184 INFO L226 Difference]: Without dead ends: 3354 [2024-11-28 03:16:13,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=262, Invalid=1298, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 03:16:13,186 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 235 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:16:13,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 1360 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:16:13,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3354 states. [2024-11-28 03:16:13,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3354 to 2940. [2024-11-28 03:16:13,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2940 states, 2872 states have (on average 1.1598189415041782) internal successors, (3331), 2874 states have internal predecessors, (3331), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:16:13,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 3415 transitions. [2024-11-28 03:16:13,463 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 3415 transitions. Word has length 171 [2024-11-28 03:16:13,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:16:13,463 INFO L471 AbstractCegarLoop]: Abstraction has 2940 states and 3415 transitions. [2024-11-28 03:16:13,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:16:13,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 3415 transitions. [2024-11-28 03:16:13,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-28 03:16:13,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:16:13,466 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:13,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Forceful destruction successful, exit code 0 [2024-11-28 03:16:13,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:16:13,666 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:16:13,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:13,667 INFO L85 PathProgramCache]: Analyzing trace with hash 970641939, now seen corresponding path program 1 times [2024-11-28 03:16:13,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:16:13,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167806942] [2024-11-28 03:16:13,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:13,667 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:16:13,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:16:13,669 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:16:13,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2024-11-28 03:16:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:14,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 03:16:14,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:16:14,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:16:18,167 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:16:18,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 64 [2024-11-28 03:16:18,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2024-11-28 03:16:18,546 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:16:18,546 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:16:20,230 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:16:20,230 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:16:20,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167806942] [2024-11-28 03:16:20,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167806942] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:16:20,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:16:20,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [25] total 36 [2024-11-28 03:16:20,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814698961] [2024-11-28 03:16:20,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:20,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:16:20,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:16:20,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:16:20,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=1056, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 03:16:20,232 INFO L87 Difference]: Start difference. First operand 2940 states and 3415 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:16:24,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:16:24,201 INFO L93 Difference]: Finished difference Result 6291 states and 7280 transitions. [2024-11-28 03:16:24,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:16:24,202 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 171 [2024-11-28 03:16:24,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:16:24,207 INFO L225 Difference]: With dead ends: 6291 [2024-11-28 03:16:24,207 INFO L226 Difference]: Without dead ends: 3354 [2024-11-28 03:16:24,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=318, Invalid=1488, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 03:16:24,211 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 179 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:16:24,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1517 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:16:24,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3354 states. [2024-11-28 03:16:24,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3354 to 2944. [2024-11-28 03:16:24,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2876 states have (on average 1.159596662030598) internal successors, (3335), 2878 states have internal predecessors, (3335), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:16:24,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 3419 transitions. [2024-11-28 03:16:24,491 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 3419 transitions. Word has length 171 [2024-11-28 03:16:24,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:16:24,492 INFO L471 AbstractCegarLoop]: Abstraction has 2944 states and 3419 transitions. [2024-11-28 03:16:24,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:16:24,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 3419 transitions. [2024-11-28 03:16:24,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-28 03:16:24,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:16:24,494 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:24,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Ended with exit code 0 [2024-11-28 03:16:24,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:16:24,694 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:16:24,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:24,695 INFO L85 PathProgramCache]: Analyzing trace with hash 917084819, now seen corresponding path program 1 times [2024-11-28 03:16:24,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:16:24,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043043503] [2024-11-28 03:16:24,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:24,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:16:24,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:16:24,697 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:16:24,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2024-11-28 03:16:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:25,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-28 03:16:25,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:16:28,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 45 [2024-11-28 03:16:28,818 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:16:28,818 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:16:30,919 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:16:30,919 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:16:30,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043043503] [2024-11-28 03:16:30,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043043503] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:16:30,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:16:30,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [22] total 33 [2024-11-28 03:16:30,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623002139] [2024-11-28 03:16:30,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:30,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:16:30,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:16:30,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:16:30,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=851, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:16:30,921 INFO L87 Difference]: Start difference. First operand 2944 states and 3419 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:16:36,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:16:36,140 INFO L93 Difference]: Finished difference Result 6317 states and 7313 transitions. [2024-11-28 03:16:36,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:16:36,141 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 171 [2024-11-28 03:16:36,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:16:36,146 INFO L225 Difference]: With dead ends: 6317 [2024-11-28 03:16:36,146 INFO L226 Difference]: Without dead ends: 3376 [2024-11-28 03:16:36,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=347, Invalid=1293, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 03:16:36,149 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 157 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:16:36,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1752 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 03:16:36,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3376 states. [2024-11-28 03:16:36,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3376 to 3070. [2024-11-28 03:16:36,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 3002 states have (on average 1.1562291805463025) internal successors, (3471), 3004 states have internal predecessors, (3471), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:16:36,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 3555 transitions. [2024-11-28 03:16:36,441 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 3555 transitions. Word has length 171 [2024-11-28 03:16:36,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:16:36,441 INFO L471 AbstractCegarLoop]: Abstraction has 3070 states and 3555 transitions. [2024-11-28 03:16:36,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:16:36,441 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 3555 transitions. [2024-11-28 03:16:36,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-28 03:16:36,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:16:36,443 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:36,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Forceful destruction successful, exit code 0 [2024-11-28 03:16:36,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:16:36,644 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:16:36,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:36,644 INFO L85 PathProgramCache]: Analyzing trace with hash 107738193, now seen corresponding path program 1 times [2024-11-28 03:16:36,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:16:36,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739602756] [2024-11-28 03:16:36,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:36,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:16:36,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:16:36,647 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:16:36,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2024-11-28 03:16:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:37,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:16:37,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:16:37,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2024-11-28 03:16:38,400 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:16:38,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 36 [2024-11-28 03:16:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 332 proven. 66 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-11-28 03:16:38,566 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:16:39,798 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 39 proven. 66 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2024-11-28 03:16:39,798 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:16:39,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739602756] [2024-11-28 03:16:39,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739602756] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:16:39,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:16:39,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2024-11-28 03:16:39,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629415874] [2024-11-28 03:16:39,799 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:16:39,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 03:16:39,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:16:39,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 03:16:39,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=703, Unknown=0, NotChecked=0, Total=812 [2024-11-28 03:16:39,800 INFO L87 Difference]: Start difference. First operand 3070 states and 3555 transitions. Second operand has 29 states, 25 states have (on average 5.32) internal successors, (133), 28 states have internal predecessors, (133), 6 states have call successors, (32), 3 states have call predecessors, (32), 6 states have return successors, (32), 3 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-28 03:16:44,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:16:44,336 INFO L93 Difference]: Finished difference Result 3684 states and 4375 transitions. [2024-11-28 03:16:44,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-28 03:16:44,336 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 5.32) internal successors, (133), 28 states have internal predecessors, (133), 6 states have call successors, (32), 3 states have call predecessors, (32), 6 states have return successors, (32), 3 states have call predecessors, (32), 6 states have call successors, (32) Word has length 171 [2024-11-28 03:16:44,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:16:44,342 INFO L225 Difference]: With dead ends: 3684 [2024-11-28 03:16:44,342 INFO L226 Difference]: Without dead ends: 3682 [2024-11-28 03:16:44,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 313 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=496, Invalid=2584, Unknown=0, NotChecked=0, Total=3080 [2024-11-28 03:16:44,344 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 263 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:16:44,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 3016 Invalid, 1702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 03:16:44,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2024-11-28 03:16:44,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 3066. [2024-11-28 03:16:44,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 2998 states have (on average 1.156437625083389) internal successors, (3467), 3000 states have internal predecessors, (3467), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-28 03:16:44,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 3551 transitions. [2024-11-28 03:16:44,688 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 3551 transitions. Word has length 171 [2024-11-28 03:16:44,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:16:44,689 INFO L471 AbstractCegarLoop]: Abstraction has 3066 states and 3551 transitions. [2024-11-28 03:16:44,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 5.32) internal successors, (133), 28 states have internal predecessors, (133), 6 states have call successors, (32), 3 states have call predecessors, (32), 6 states have return successors, (32), 3 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-28 03:16:44,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 3551 transitions. [2024-11-28 03:16:44,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-28 03:16:44,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:16:44,691 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:44,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Forceful destruction successful, exit code 0 [2024-11-28 03:16:44,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:16:44,891 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:16:44,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:44,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1611836777, now seen corresponding path program 1 times [2024-11-28 03:16:44,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:16:44,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784833855] [2024-11-28 03:16:44,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:44,892 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:16:44,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:16:44,894 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:16:44,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2024-11-28 03:16:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:45,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 03:16:45,432 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:16:45,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:16:48,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 45 [2024-11-28 03:16:48,464 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:16:48,464 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:16:50,388 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:16:50,388 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:16:50,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784833855] [2024-11-28 03:16:50,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784833855] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:16:50,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:16:50,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [22] total 33 [2024-11-28 03:16:50,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972274677] [2024-11-28 03:16:50,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:50,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:16:50,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:16:50,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:16:50,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=895, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:16:50,390 INFO L87 Difference]: Start difference. First operand 3066 states and 3551 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:16:54,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:16:54,406 INFO L93 Difference]: Finished difference Result 5184 states and 6036 transitions. [2024-11-28 03:16:54,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:16:54,407 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 171 [2024-11-28 03:16:54,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:16:54,412 INFO L225 Difference]: With dead ends: 5184 [2024-11-28 03:16:54,412 INFO L226 Difference]: Without dead ends: 3383 [2024-11-28 03:16:54,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=266, Invalid=1294, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 03:16:54,415 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 283 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:16:54,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 1350 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 03:16:54,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2024-11-28 03:16:54,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3081. [2024-11-28 03:16:54,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3081 states, 3007 states have (on average 1.1559694047223146) internal successors, (3476), 3010 states have internal predecessors, (3476), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:16:54,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3081 states to 3081 states and 3568 transitions. [2024-11-28 03:16:54,729 INFO L78 Accepts]: Start accepts. Automaton has 3081 states and 3568 transitions. Word has length 171 [2024-11-28 03:16:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:16:54,730 INFO L471 AbstractCegarLoop]: Abstraction has 3081 states and 3568 transitions. [2024-11-28 03:16:54,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:16:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3081 states and 3568 transitions. [2024-11-28 03:16:54,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 03:16:54,731 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:16:54,732 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:54,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Ended with exit code 0 [2024-11-28 03:16:54,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:16:54,932 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:16:54,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:54,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1976069363, now seen corresponding path program 1 times [2024-11-28 03:16:54,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:16:54,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923855246] [2024-11-28 03:16:54,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:54,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:16:54,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:16:54,935 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:16:54,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2024-11-28 03:16:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:55,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 03:16:55,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:16:55,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:16:57,405 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:16:57,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 36 [2024-11-28 03:16:57,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-11-28 03:16:57,613 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:16:57,613 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:16:58,161 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 03:16:58,161 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:16:58,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923855246] [2024-11-28 03:16:58,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [923855246] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:16:58,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:16:58,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18] total 22 [2024-11-28 03:16:58,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934848323] [2024-11-28 03:16:58,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:58,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:16:58,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:16:58,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:16:58,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:16:58,163 INFO L87 Difference]: Start difference. First operand 3081 states and 3568 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:16:59,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:16:59,293 INFO L93 Difference]: Finished difference Result 6264 states and 7245 transitions. [2024-11-28 03:16:59,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:16:59,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 173 [2024-11-28 03:16:59,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:16:59,299 INFO L225 Difference]: With dead ends: 6264 [2024-11-28 03:16:59,299 INFO L226 Difference]: Without dead ends: 3203 [2024-11-28 03:16:59,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:16:59,301 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 67 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:16:59,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 565 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:16:59,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2024-11-28 03:16:59,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 2739. [2024-11-28 03:16:59,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2739 states, 2665 states have (on average 1.1617260787992496) internal successors, (3096), 2668 states have internal predecessors, (3096), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:16:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 3188 transitions. [2024-11-28 03:16:59,614 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 3188 transitions. Word has length 173 [2024-11-28 03:16:59,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:16:59,614 INFO L471 AbstractCegarLoop]: Abstraction has 2739 states and 3188 transitions. [2024-11-28 03:16:59,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:16:59,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 3188 transitions. [2024-11-28 03:16:59,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-11-28 03:16:59,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:16:59,617 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:59,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Forceful destruction successful, exit code 0 [2024-11-28 03:16:59,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:16:59,818 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:16:59,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:59,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1772021793, now seen corresponding path program 1 times [2024-11-28 03:16:59,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:16:59,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383665919] [2024-11-28 03:16:59,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:59,819 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:16:59,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:16:59,821 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:16:59,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2024-11-28 03:17:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:00,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:17:00,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:01,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2024-11-28 03:17:01,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2878 backedges. 1155 proven. 48 refuted. 0 times theorem prover too weak. 1675 trivial. 0 not checked. [2024-11-28 03:17:01,294 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:17:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2878 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2856 trivial. 0 not checked. [2024-11-28 03:17:01,782 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:17:01,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383665919] [2024-11-28 03:17:01,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383665919] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:01,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:01,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-28 03:17:01,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529958350] [2024-11-28 03:17:01,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:01,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:17:01,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:17:01,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:17:01,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:17:01,783 INFO L87 Difference]: Start difference. First operand 2739 states and 3188 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:17:02,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:02,554 INFO L93 Difference]: Finished difference Result 4686 states and 5449 transitions. [2024-11-28 03:17:02,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:17:02,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 303 [2024-11-28 03:17:02,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:02,560 INFO L225 Difference]: With dead ends: 4686 [2024-11-28 03:17:02,560 INFO L226 Difference]: Without dead ends: 3103 [2024-11-28 03:17:02,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 590 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:17:02,562 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 72 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:02,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 768 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:17:02,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2024-11-28 03:17:02,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 2471. [2024-11-28 03:17:02,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2397 states have (on average 1.1297455152273674) internal successors, (2708), 2400 states have internal predecessors, (2708), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:17:02,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 2800 transitions. [2024-11-28 03:17:02,897 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 2800 transitions. Word has length 303 [2024-11-28 03:17:02,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:02,898 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 2800 transitions. [2024-11-28 03:17:02,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:17:02,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 2800 transitions. [2024-11-28 03:17:02,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-28 03:17:02,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:02,901 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:02,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Forceful destruction successful, exit code 0 [2024-11-28 03:17:03,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:17:03,101 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:03,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:03,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1174757745, now seen corresponding path program 1 times [2024-11-28 03:17:03,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:17:03,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915033923] [2024-11-28 03:17:03,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:03,103 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:17:03,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:17:03,104 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:17:03,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2024-11-28 03:17:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:04,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-28 03:17:04,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:04,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:17:04,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-28 03:17:04,738 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:04,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-28 03:17:04,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:04,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 52 [2024-11-28 03:17:06,225 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:06,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 30 [2024-11-28 03:17:08,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:17:08,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:17:11,182 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:11,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 57 [2024-11-28 03:17:11,534 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:11,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 71 [2024-11-28 03:17:12,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 47 [2024-11-28 03:17:12,648 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:12,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 109 treesize of output 49 [2024-11-28 03:17:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1882 proven. 376 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2024-11-28 03:17:13,168 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:17:14,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2857 trivial. 0 not checked. [2024-11-28 03:17:14,789 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:17:14,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915033923] [2024-11-28 03:17:14,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1915033923] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:14,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:14,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [40] total 45 [2024-11-28 03:17:14,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964123095] [2024-11-28 03:17:14,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:14,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:17:14,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:17:14,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:17:14,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1775, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 03:17:14,792 INFO L87 Difference]: Start difference. First operand 2471 states and 2800 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:17:16,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:16,829 INFO L93 Difference]: Finished difference Result 4375 states and 4939 transitions. [2024-11-28 03:17:16,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:17:16,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 304 [2024-11-28 03:17:16,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:16,835 INFO L225 Difference]: With dead ends: 4375 [2024-11-28 03:17:16,835 INFO L226 Difference]: Without dead ends: 2865 [2024-11-28 03:17:16,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=230, Invalid=2026, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 03:17:16,837 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 227 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:16,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 847 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:17:16,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2024-11-28 03:17:17,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 2427. [2024-11-28 03:17:17,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 2353 states have (on average 1.1262218444538887) internal successors, (2650), 2356 states have internal predecessors, (2650), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:17:17,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 2742 transitions. [2024-11-28 03:17:17,172 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 2742 transitions. Word has length 304 [2024-11-28 03:17:17,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:17,173 INFO L471 AbstractCegarLoop]: Abstraction has 2427 states and 2742 transitions. [2024-11-28 03:17:17,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:17:17,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 2742 transitions. [2024-11-28 03:17:17,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-28 03:17:17,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:17,175 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:17,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Forceful destruction successful, exit code 0 [2024-11-28 03:17:17,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:17:17,376 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:17,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:17,376 INFO L85 PathProgramCache]: Analyzing trace with hash 724914711, now seen corresponding path program 1 times [2024-11-28 03:17:17,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:17:17,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917285166] [2024-11-28 03:17:17,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:17,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:17:17,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:17:17,379 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:17:17,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (86)] Waiting until timeout for monitored process [2024-11-28 03:17:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:18,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 03:17:18,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:18,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:17:19,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:17:19,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-28 03:17:20,694 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:20,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 61 [2024-11-28 03:17:21,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2024-11-28 03:17:21,828 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:21,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 42 [2024-11-28 03:17:22,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1251 proven. 48 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-11-28 03:17:22,426 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:17:24,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2857 trivial. 0 not checked. [2024-11-28 03:17:24,064 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:17:24,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917285166] [2024-11-28 03:17:24,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917285166] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:24,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:24,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [26] total 33 [2024-11-28 03:17:24,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097532420] [2024-11-28 03:17:24,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:24,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:17:24,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:17:24,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:17:24,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=895, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:17:24,066 INFO L87 Difference]: Start difference. First operand 2427 states and 2742 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:17:28,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:28,599 INFO L93 Difference]: Finished difference Result 5480 states and 6148 transitions. [2024-11-28 03:17:28,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:17:28,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 304 [2024-11-28 03:17:28,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:28,605 INFO L225 Difference]: With dead ends: 5480 [2024-11-28 03:17:28,605 INFO L226 Difference]: Without dead ends: 3073 [2024-11-28 03:17:28,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 574 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=204, Invalid=1128, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 03:17:28,607 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 339 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:28,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1091 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-28 03:17:28,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3073 states. [2024-11-28 03:17:28,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3073 to 2380. [2024-11-28 03:17:28,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2380 states, 2306 states have (on average 1.111448395490026) internal successors, (2563), 2309 states have internal predecessors, (2563), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:17:28,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 2655 transitions. [2024-11-28 03:17:28,961 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 2655 transitions. Word has length 304 [2024-11-28 03:17:28,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:28,961 INFO L471 AbstractCegarLoop]: Abstraction has 2380 states and 2655 transitions. [2024-11-28 03:17:28,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:17:28,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 2655 transitions. [2024-11-28 03:17:28,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-28 03:17:28,964 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:28,965 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:28,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (86)] Forceful destruction successful, exit code 0 [2024-11-28 03:17:29,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:17:29,165 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:29,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:29,166 INFO L85 PathProgramCache]: Analyzing trace with hash 302212885, now seen corresponding path program 1 times [2024-11-28 03:17:29,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:17:29,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758341998] [2024-11-28 03:17:29,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:29,167 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:17:29,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:17:29,169 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:17:29,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2024-11-28 03:17:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:30,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 03:17:30,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:30,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:17:31,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:17:31,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:17:32,298 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:32,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 57 [2024-11-28 03:17:32,546 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:32,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 80 [2024-11-28 03:17:33,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2024-11-28 03:17:33,330 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:33,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 97 treesize of output 43 [2024-11-28 03:17:33,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1249 proven. 48 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2024-11-28 03:17:33,940 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:17:35,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2857 trivial. 0 not checked. [2024-11-28 03:17:35,034 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:17:35,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758341998] [2024-11-28 03:17:35,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [758341998] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:35,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:35,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [25] total 30 [2024-11-28 03:17:35,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028687655] [2024-11-28 03:17:35,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:35,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:17:35,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:17:35,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:17:35,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=737, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:17:35,036 INFO L87 Difference]: Start difference. First operand 2380 states and 2655 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:17:36,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:36,916 INFO L93 Difference]: Finished difference Result 4421 states and 4925 transitions. [2024-11-28 03:17:36,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:17:36,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 304 [2024-11-28 03:17:36,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:36,924 INFO L225 Difference]: With dead ends: 4421 [2024-11-28 03:17:36,924 INFO L226 Difference]: Without dead ends: 2958 [2024-11-28 03:17:36,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=158, Invalid=898, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:17:36,926 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 249 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:36,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 875 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:17:36,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2024-11-28 03:17:37,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2380. [2024-11-28 03:17:37,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2380 states, 2306 states have (on average 1.1084128360797918) internal successors, (2556), 2309 states have internal predecessors, (2556), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:17:37,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 2648 transitions. [2024-11-28 03:17:37,268 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 2648 transitions. Word has length 304 [2024-11-28 03:17:37,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:37,268 INFO L471 AbstractCegarLoop]: Abstraction has 2380 states and 2648 transitions. [2024-11-28 03:17:37,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:17:37,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 2648 transitions. [2024-11-28 03:17:37,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-28 03:17:37,271 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:37,271 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:37,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Ended with exit code 0 [2024-11-28 03:17:37,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:17:37,471 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:37,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:37,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1746370133, now seen corresponding path program 1 times [2024-11-28 03:17:37,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:17:37,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920781501] [2024-11-28 03:17:37,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:37,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:17:37,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:17:37,475 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:17:37,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2024-11-28 03:17:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:38,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 03:17:38,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:39,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:17:39,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:17:39,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:17:40,675 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:40,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 56 [2024-11-28 03:17:40,924 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:40,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 79 [2024-11-28 03:17:41,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2024-11-28 03:17:41,745 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:41,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 96 treesize of output 42 [2024-11-28 03:17:42,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1249 proven. 48 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2024-11-28 03:17:42,361 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:17:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2857 trivial. 0 not checked. [2024-11-28 03:17:43,407 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:17:43,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920781501] [2024-11-28 03:17:43,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920781501] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:43,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:43,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [25] total 30 [2024-11-28 03:17:43,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414161680] [2024-11-28 03:17:43,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:43,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:17:43,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:17:43,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:17:43,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=737, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:17:43,409 INFO L87 Difference]: Start difference. First operand 2380 states and 2648 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:17:45,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:45,241 INFO L93 Difference]: Finished difference Result 4374 states and 4842 transitions. [2024-11-28 03:17:45,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:17:45,242 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 304 [2024-11-28 03:17:45,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:45,247 INFO L225 Difference]: With dead ends: 4374 [2024-11-28 03:17:45,248 INFO L226 Difference]: Without dead ends: 2911 [2024-11-28 03:17:45,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=158, Invalid=898, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:17:45,250 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 234 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:45,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 731 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:17:45,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2024-11-28 03:17:45,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2318. [2024-11-28 03:17:45,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2244 states have (on average 1.1056149732620322) internal successors, (2481), 2247 states have internal predecessors, (2481), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:17:45,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2573 transitions. [2024-11-28 03:17:45,593 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2573 transitions. Word has length 304 [2024-11-28 03:17:45,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:45,593 INFO L471 AbstractCegarLoop]: Abstraction has 2318 states and 2573 transitions. [2024-11-28 03:17:45,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:17:45,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2573 transitions. [2024-11-28 03:17:45,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-11-28 03:17:45,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:45,596 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:45,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Ended with exit code 0 [2024-11-28 03:17:45,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:17:45,797 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:45,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:45,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2101795281, now seen corresponding path program 1 times [2024-11-28 03:17:45,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:17:45,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196535215] [2024-11-28 03:17:45,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:45,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:17:45,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:17:45,800 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:17:45,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2024-11-28 03:17:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:46,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-28 03:17:46,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:47,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:17:47,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-28 03:17:47,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-11-28 03:17:50,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:50,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 81 [2024-11-28 03:17:50,544 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:50,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 123 treesize of output 95 [2024-11-28 03:17:51,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2024-11-28 03:17:52,270 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:17:52,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 141 treesize of output 63 [2024-11-28 03:17:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1251 proven. 48 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-11-28 03:17:54,194 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:17:56,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2859 trivial. 0 not checked. [2024-11-28 03:17:56,771 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:17:56,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196535215] [2024-11-28 03:17:56,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [196535215] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:56,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:56,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [34] total 44 [2024-11-28 03:17:56,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647837961] [2024-11-28 03:17:56,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:56,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:17:56,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:17:56,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:17:56,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1691, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 03:17:56,773 INFO L87 Difference]: Start difference. First operand 2318 states and 2573 transitions. Second operand has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:18:01,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:01,571 INFO L93 Difference]: Finished difference Result 4265 states and 4705 transitions. [2024-11-28 03:18:01,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:18:01,572 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 306 [2024-11-28 03:18:01,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:01,575 INFO L225 Difference]: With dead ends: 4265 [2024-11-28 03:18:01,575 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:18:01,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=264, Invalid=2492, Unknown=0, NotChecked=0, Total=2756 [2024-11-28 03:18:01,578 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 182 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:01,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 1793 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:18:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:18:01,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:18:01,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:01,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:18:01,582 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 306 [2024-11-28 03:18:01,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:01,583 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:18:01,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-28 03:18:01,583 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:18:01,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:18:01,586 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:18:01,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Ended with exit code 0 [2024-11-28 03:18:01,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39979d6d-73d5-4303-a14b-fd91a10c1553/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:18:01,791 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:01,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.