./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.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_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/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_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/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_bbfabb89-b3e6-4e18-9fb7-cab65078d447/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 6b58d24144d549c81ae478cdbe56bd6625ad814c6ede850dce7ec3284e5d3039 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:14:42,746 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:14:42,849 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:14:42,860 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:14:42,860 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:14:42,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:14:42,900 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:14:42,901 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:14:42,901 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:14:42,902 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:14:42,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:14:42,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:14:42,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:14:42,903 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:14:42,903 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:14:42,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:14:42,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:14:42,904 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:14:42,904 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:14:42,904 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:14:42,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:14:42,904 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:14:42,904 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:14:42,904 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:14:42,904 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:14:42,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:14:42,904 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:14:42,904 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:14:42,905 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:14:42,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:14:42,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:14:42,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:14:42,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:14:42,905 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:14:42,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:14:42,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:14:42,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:14:42,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:14:42,905 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:14:42,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:14:42,906 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:14:42,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:14:42,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:14:42,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:14:42,906 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:14:42,906 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:14:42,906 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:14:42,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:14:42,906 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_bbfabb89-b3e6-4e18-9fb7-cab65078d447/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 -> 6b58d24144d549c81ae478cdbe56bd6625ad814c6ede850dce7ec3284e5d3039 [2024-11-27 23:14:43,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:14:43,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:14:43,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:14:43,213 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:14:43,213 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:14:43,215 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i [2024-11-27 23:14:46,120 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/data/ba68a6183/5ade16cc9c51416c9b57f600002bfca5/FLAG61377777e [2024-11-27 23:14:46,380 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:14:46,380 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i [2024-11-27 23:14:46,391 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/data/ba68a6183/5ade16cc9c51416c9b57f600002bfca5/FLAG61377777e [2024-11-27 23:14:46,409 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/data/ba68a6183/5ade16cc9c51416c9b57f600002bfca5 [2024-11-27 23:14:46,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:14:46,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:14:46,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:14:46,414 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:14:46,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:14:46,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e1e3ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46, skipping insertion in model container [2024-11-27 23:14:46,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,447 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:14:46,598 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_bbfabb89-b3e6-4e18-9fb7-cab65078d447/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i[916,929] [2024-11-27 23:14:46,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:14:46,684 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:14:46,694 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_bbfabb89-b3e6-4e18-9fb7-cab65078d447/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i[916,929] [2024-11-27 23:14:46,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:14:46,757 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:14:46,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46 WrapperNode [2024-11-27 23:14:46,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:14:46,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:14:46,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:14:46,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:14:46,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,827 INFO L138 Inliner]: procedures = 29, calls = 172, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 523 [2024-11-27 23:14:46,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:14:46,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:14:46,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:14:46,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:14:46,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,853 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,897 INFO L175 MemorySlicer]: Split 139 memory accesses to 6 slices as follows [2, 8, 40, 10, 22, 57]. 41 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 1, 5, 1, 2, 4]. The 17 writes are split as follows [0, 1, 6, 3, 2, 5]. [2024-11-27 23:14:46,900 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,900 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,929 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,931 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,936 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:14:46,964 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:14:46,964 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:14:46,964 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:14:46,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46" (1/1) ... [2024-11-27 23:14:46,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:14:46,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:14:46,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:14:47,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:14:47,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:14:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-27 23:14:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-27 23:14:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-27 23:14:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-27 23:14:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-27 23:14:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-27 23:14:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 23:14:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 23:14:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 23:14:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 23:14:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-27 23:14:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-27 23:14:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-27 23:14:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-27 23:14:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-27 23:14:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-27 23:14:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-27 23:14:47,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-27 23:14:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 23:14:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 23:14:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 23:14:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 23:14:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-27 23:14:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-27 23:14:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-27 23:14:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-27 23:14:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-27 23:14:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-27 23:14:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-27 23:14:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-27 23:14:47,032 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:14:47,032 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:14:47,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:14:47,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:14:47,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 23:14:47,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 23:14:47,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 23:14:47,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-27 23:14:47,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:14:47,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:14:47,184 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:14:47,186 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:14:47,945 INFO L? ?]: Removed 149 outVars from TransFormulas that were not future-live. [2024-11-27 23:14:47,945 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:14:47,959 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:14:47,962 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:14:47,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:14:47 BoogieIcfgContainer [2024-11-27 23:14:47,963 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:14:47,965 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:14:47,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:14:47,971 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:14:47,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:14:46" (1/3) ... [2024-11-27 23:14:47,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e3b30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:14:47, skipping insertion in model container [2024-11-27 23:14:47,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:46" (2/3) ... [2024-11-27 23:14:47,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e3b30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:14:47, skipping insertion in model container [2024-11-27 23:14:47,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:14:47" (3/3) ... [2024-11-27 23:14:47,975 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-30.i [2024-11-27 23:14:47,993 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:14:47,995 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-30.i that has 2 procedures, 120 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:14:48,065 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:14:48,080 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;@3f199487, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:14:48,080 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:14:48,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 100 states have (on average 1.41) internal successors, (141), 101 states have internal predecessors, (141), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:14:48,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-27 23:14:48,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:14:48,101 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:14:48,102 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:14:48,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:14:48,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1810914828, now seen corresponding path program 1 times [2024-11-27 23:14:48,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:14:48,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2704773] [2024-11-27 23:14:48,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:14:48,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:14:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:14:48,518 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-27 23:14:48,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:14:48,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2704773] [2024-11-27 23:14:48,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2704773] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:14:48,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304653424] [2024-11-27 23:14:48,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:14:48,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:14:48,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:14:48,522 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:14:48,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:14:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:14:48,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:14:48,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:14:48,939 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-27 23:14:48,939 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:14:48,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304653424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:14:48,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:14:48,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:14:48,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863146111] [2024-11-27 23:14:48,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:14:48,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:14:48,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:14:48,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:14:48,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:14:48,969 INFO L87 Difference]: Start difference. First operand has 120 states, 100 states have (on average 1.41) internal successors, (141), 101 states have internal predecessors, (141), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:14:49,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:14:49,005 INFO L93 Difference]: Finished difference Result 233 states and 361 transitions. [2024-11-27 23:14:49,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:14:49,007 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-11-27 23:14:49,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:14:49,014 INFO L225 Difference]: With dead ends: 233 [2024-11-27 23:14:49,014 INFO L226 Difference]: Without dead ends: 116 [2024-11-27 23:14:49,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:14:49,020 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 [2024-11-27 23:14:49,020 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] [2024-11-27 23:14:49,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-27 23:14:49,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-27 23:14:49,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 97 states have internal predecessors, (134), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:14:49,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 168 transitions. [2024-11-27 23:14:49,061 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 168 transitions. Word has length 138 [2024-11-27 23:14:49,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:14:49,062 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 168 transitions. [2024-11-27 23:14:49,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:14:49,062 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 168 transitions. [2024-11-27 23:14:49,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-27 23:14:49,065 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:14:49,065 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:14:49,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:14:49,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:14:49,270 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:14:49,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:14:49,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1650115294, now seen corresponding path program 1 times [2024-11-27 23:14:49,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:14:49,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530567035] [2024-11-27 23:14:49,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:14:49,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:14:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:14:49,736 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:14:49,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:14:49,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530567035] [2024-11-27 23:14:49,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530567035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:14:49,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:14:49,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:14:49,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522676462] [2024-11-27 23:14:49,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:14:49,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:14:49,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:14:49,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:14:49,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:14:49,740 INFO L87 Difference]: Start difference. First operand 116 states and 168 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:14:49,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:14:49,805 INFO L93 Difference]: Finished difference Result 231 states and 336 transitions. [2024-11-27 23:14:49,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:14:49,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-11-27 23:14:49,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:14:49,811 INFO L225 Difference]: With dead ends: 231 [2024-11-27 23:14:49,811 INFO L226 Difference]: Without dead ends: 118 [2024-11-27 23:14:49,812 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 [2024-11-27 23:14:49,813 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:14:49,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 487 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:14:49,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-27 23:14:49,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-27 23:14:49,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 99 states have (on average 1.3737373737373737) internal successors, (136), 99 states have internal predecessors, (136), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:14:49,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 170 transitions. [2024-11-27 23:14:49,839 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 170 transitions. Word has length 138 [2024-11-27 23:14:49,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:14:49,841 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 170 transitions. [2024-11-27 23:14:49,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:14:49,841 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 170 transitions. [2024-11-27 23:14:49,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-27 23:14:49,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:14:49,846 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:14:49,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:14:49,846 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:14:49,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:14:49,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1162068188, now seen corresponding path program 1 times [2024-11-27 23:14:49,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:14:49,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611873221] [2024-11-27 23:14:49,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:14:49,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:14:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:14:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:14:52,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:14:52,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611873221] [2024-11-27 23:14:52,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611873221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:14:52,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:14:52,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:14:52,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333364605] [2024-11-27 23:14:52,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:14:52,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:14:52,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:14:52,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:14:52,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:14:52,285 INFO L87 Difference]: Start difference. First operand 118 states and 170 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:14:52,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:14:52,981 INFO L93 Difference]: Finished difference Result 416 states and 598 transitions. [2024-11-27 23:14:52,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:14:52,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-11-27 23:14:52,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:14:52,984 INFO L225 Difference]: With dead ends: 416 [2024-11-27 23:14:52,984 INFO L226 Difference]: Without dead ends: 301 [2024-11-27 23:14:52,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:14:52,986 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 347 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:14:52,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 818 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:14:52,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-27 23:14:53,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 214. [2024-11-27 23:14:53,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 183 states have (on average 1.3825136612021858) internal successors, (253), 184 states have internal predecessors, (253), 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) [2024-11-27 23:14:53,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 309 transitions. [2024-11-27 23:14:53,016 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 309 transitions. Word has length 138 [2024-11-27 23:14:53,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:14:53,019 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 309 transitions. [2024-11-27 23:14:53,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:14:53,019 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 309 transitions. [2024-11-27 23:14:53,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-27 23:14:53,025 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:14:53,026 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:14:53,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:14:53,027 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:14:53,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:14:53,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1481224936, now seen corresponding path program 1 times [2024-11-27 23:14:53,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:14:53,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385696218] [2024-11-27 23:14:53,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:14:53,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:14:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:14:54,238 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:14:54,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:14:54,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385696218] [2024-11-27 23:14:54,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385696218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:14:54,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:14:54,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:14:54,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495264410] [2024-11-27 23:14:54,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:14:54,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:14:54,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:14:54,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:14:54,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:14:54,242 INFO L87 Difference]: Start difference. First operand 214 states and 309 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:14:54,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:14:54,558 INFO L93 Difference]: Finished difference Result 430 states and 620 transitions. [2024-11-27 23:14:54,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:14:54,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-27 23:14:54,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:14:54,561 INFO L225 Difference]: With dead ends: 430 [2024-11-27 23:14:54,561 INFO L226 Difference]: Without dead ends: 219 [2024-11-27 23:14:54,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:14:54,562 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 124 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:14:54,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 986 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:14:54,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-27 23:14:54,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2024-11-27 23:14:54,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 185 states have (on average 1.3783783783783783) internal successors, (255), 186 states have internal predecessors, (255), 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) [2024-11-27 23:14:54,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 311 transitions. [2024-11-27 23:14:54,580 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 311 transitions. Word has length 139 [2024-11-27 23:14:54,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:14:54,581 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 311 transitions. [2024-11-27 23:14:54,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:14:54,581 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 311 transitions. [2024-11-27 23:14:54,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-27 23:14:54,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:14:54,583 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:14:54,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:14:54,584 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:14:54,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:14:54,584 INFO L85 PathProgramCache]: Analyzing trace with hash 694211721, now seen corresponding path program 1 times [2024-11-27 23:14:54,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:14:54,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728849914] [2024-11-27 23:14:54,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:14:54,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:14:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:14:55,195 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:14:55,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:14:55,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728849914] [2024-11-27 23:14:55,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728849914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:14:55,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:14:55,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:14:55,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049242530] [2024-11-27 23:14:55,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:14:55,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:14:55,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:14:55,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:14:55,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:14:55,199 INFO L87 Difference]: Start difference. First operand 216 states and 311 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:14:55,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:14:55,323 INFO L93 Difference]: Finished difference Result 433 states and 622 transitions. [2024-11-27 23:14:55,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:14:55,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-27 23:14:55,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:14:55,327 INFO L225 Difference]: With dead ends: 433 [2024-11-27 23:14:55,327 INFO L226 Difference]: Without dead ends: 220 [2024-11-27 23:14:55,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:14:55,329 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 73 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:14:55,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1052 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:14:55,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-27 23:14:55,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 216. [2024-11-27 23:14:55,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 185 states have (on average 1.372972972972973) internal successors, (254), 186 states have internal predecessors, (254), 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) [2024-11-27 23:14:55,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 310 transitions. [2024-11-27 23:14:55,347 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 310 transitions. Word has length 139 [2024-11-27 23:14:55,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:14:55,348 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 310 transitions. [2024-11-27 23:14:55,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:14:55,348 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 310 transitions. [2024-11-27 23:14:55,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 23:14:55,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:14:55,350 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:14:55,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:14:55,351 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:14:55,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:14:55,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1491953827, now seen corresponding path program 1 times [2024-11-27 23:14:55,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:14:55,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125035433] [2024-11-27 23:14:55,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:14:55,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:14:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:14:56,142 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:14:56,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:14:56,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125035433] [2024-11-27 23:14:56,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125035433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:14:56,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:14:56,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:14:56,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911285427] [2024-11-27 23:14:56,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:14:56,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:14:56,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:14:56,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:14:56,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:14:56,146 INFO L87 Difference]: Start difference. First operand 216 states and 310 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:14:56,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:14:56,437 INFO L93 Difference]: Finished difference Result 613 states and 877 transitions. [2024-11-27 23:14:56,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:14:56,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-27 23:14:56,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:14:56,441 INFO L225 Difference]: With dead ends: 613 [2024-11-27 23:14:56,441 INFO L226 Difference]: Without dead ends: 400 [2024-11-27 23:14:56,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:14:56,443 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 117 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:14:56,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 952 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:14:56,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-27 23:14:56,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 253. [2024-11-27 23:14:56,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 222 states have (on average 1.3693693693693694) internal successors, (304), 223 states have internal predecessors, (304), 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) [2024-11-27 23:14:56,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 360 transitions. [2024-11-27 23:14:56,465 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 360 transitions. Word has length 141 [2024-11-27 23:14:56,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:14:56,465 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 360 transitions. [2024-11-27 23:14:56,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:14:56,466 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 360 transitions. [2024-11-27 23:14:56,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 23:14:56,467 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:14:56,468 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:14:56,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:14:56,468 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:14:56,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:14:56,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1331758940, now seen corresponding path program 1 times [2024-11-27 23:14:56,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:14:56,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929968064] [2024-11-27 23:14:56,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:14:56,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:14:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:14:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-27 23:14:56,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:14:56,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929968064] [2024-11-27 23:14:56,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929968064] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:14:56,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340994265] [2024-11-27 23:14:56,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:14:56,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:14:56,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:14:56,691 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:14:56,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:14:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:14:56,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:14:56,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:14:57,025 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:14:57,026 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:14:57,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340994265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:14:57,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:14:57,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-11-27 23:14:57,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129838512] [2024-11-27 23:14:57,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:14:57,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:14:57,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:14:57,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:14:57,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:14:57,028 INFO L87 Difference]: Start difference. First operand 253 states and 360 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:14:57,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:14:57,080 INFO L93 Difference]: Finished difference Result 512 states and 729 transitions. [2024-11-27 23:14:57,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:14:57,081 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-27 23:14:57,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:14:57,083 INFO L225 Difference]: With dead ends: 512 [2024-11-27 23:14:57,084 INFO L226 Difference]: Without dead ends: 262 [2024-11-27 23:14:57,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:14:57,086 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 650 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 [2024-11-27 23:14:57,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 650 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:14:57,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-27 23:14:57,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 258. [2024-11-27 23:14:57,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 227 states have (on average 1.3612334801762114) internal successors, (309), 228 states have internal predecessors, (309), 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) [2024-11-27 23:14:57,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 365 transitions. [2024-11-27 23:14:57,121 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 365 transitions. Word has length 141 [2024-11-27 23:14:57,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:14:57,121 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 365 transitions. [2024-11-27 23:14:57,121 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:14:57,121 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 365 transitions. [2024-11-27 23:14:57,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 23:14:57,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:14:57,123 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:14:57,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:14:57,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:14:57,324 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:14:57,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:14:57,325 INFO L85 PathProgramCache]: Analyzing trace with hash -2030086986, now seen corresponding path program 1 times [2024-11-27 23:14:57,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:14:57,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436233822] [2024-11-27 23:14:57,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:14:57,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:14:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:14:58,629 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:14:58,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:14:58,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436233822] [2024-11-27 23:14:58,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436233822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:14:58,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:14:58,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:14:58,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025086005] [2024-11-27 23:14:58,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:14:58,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:14:58,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:14:58,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:14:58,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:14:58,634 INFO L87 Difference]: Start difference. First operand 258 states and 365 transitions. Second operand has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:14:59,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:14:59,702 INFO L93 Difference]: Finished difference Result 914 states and 1286 transitions. [2024-11-27 23:14:59,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:14:59,703 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-11-27 23:14:59,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:14:59,710 INFO L225 Difference]: With dead ends: 914 [2024-11-27 23:14:59,710 INFO L226 Difference]: Without dead ends: 659 [2024-11-27 23:14:59,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:14:59,714 INFO L435 NwaCegarLoop]: 303 mSDtfsCounter, 446 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1956 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:14:59,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 1956 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:14:59,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-27 23:14:59,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 387. [2024-11-27 23:14:59,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 344 states have (on average 1.3662790697674418) internal successors, (470), 347 states have internal predecessors, (470), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-27 23:14:59,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 546 transitions. [2024-11-27 23:14:59,774 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 546 transitions. Word has length 141 [2024-11-27 23:14:59,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:14:59,776 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 546 transitions. [2024-11-27 23:14:59,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:14:59,776 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 546 transitions. [2024-11-27 23:14:59,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 23:14:59,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:14:59,779 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:14:59,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:14:59,779 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:14:59,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:14:59,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1243811956, now seen corresponding path program 1 times [2024-11-27 23:14:59,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:14:59,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848590769] [2024-11-27 23:14:59,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:14:59,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:14:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:00,706 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:00,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:00,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848590769] [2024-11-27 23:15:00,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848590769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:00,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:00,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:15:00,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8442961] [2024-11-27 23:15:00,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:00,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:00,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:00,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:00,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:00,709 INFO L87 Difference]: Start difference. First operand 387 states and 546 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:15:01,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:01,146 INFO L93 Difference]: Finished difference Result 747 states and 1050 transitions. [2024-11-27 23:15:01,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:01,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-11-27 23:15:01,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:01,150 INFO L225 Difference]: With dead ends: 747 [2024-11-27 23:15:01,150 INFO L226 Difference]: Without dead ends: 391 [2024-11-27 23:15:01,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:15:01,151 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 100 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:01,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 942 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:15:01,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-27 23:15:01,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 343. [2024-11-27 23:15:01,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 300 states have (on average 1.3566666666666667) internal successors, (407), 303 states have internal predecessors, (407), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-27 23:15:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 483 transitions. [2024-11-27 23:15:01,200 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 483 transitions. Word has length 141 [2024-11-27 23:15:01,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:01,201 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 483 transitions. [2024-11-27 23:15:01,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:15:01,202 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 483 transitions. [2024-11-27 23:15:01,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:15:01,203 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:01,203 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:01,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:15:01,204 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:01,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:01,204 INFO L85 PathProgramCache]: Analyzing trace with hash 407794705, now seen corresponding path program 1 times [2024-11-27 23:15:01,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:01,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307894588] [2024-11-27 23:15:01,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:01,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:01,957 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:01,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:01,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307894588] [2024-11-27 23:15:01,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307894588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:01,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:01,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:15:01,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518972272] [2024-11-27 23:15:01,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:01,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:15:01,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:01,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:15:01,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:15:01,960 INFO L87 Difference]: Start difference. First operand 343 states and 483 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:02,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:02,538 INFO L93 Difference]: Finished difference Result 662 states and 923 transitions. [2024-11-27 23:15:02,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:15:02,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-27 23:15:02,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:02,541 INFO L225 Difference]: With dead ends: 662 [2024-11-27 23:15:02,541 INFO L226 Difference]: Without dead ends: 350 [2024-11-27 23:15:02,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:15:02,542 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 100 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:02,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 861 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:15:02,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-27 23:15:02,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 266. [2024-11-27 23:15:02,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 233 states have (on average 1.3390557939914163) internal successors, (312), 234 states have internal predecessors, (312), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-27 23:15:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 368 transitions. [2024-11-27 23:15:02,567 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 368 transitions. Word has length 143 [2024-11-27 23:15:02,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:02,568 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 368 transitions. [2024-11-27 23:15:02,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:02,568 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 368 transitions. [2024-11-27 23:15:02,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:15:02,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:02,571 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:02,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:15:02,571 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:02,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:02,571 INFO L85 PathProgramCache]: Analyzing trace with hash 160802660, now seen corresponding path program 1 times [2024-11-27 23:15:02,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:02,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536582058] [2024-11-27 23:15:02,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:02,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:03,499 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:03,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:03,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536582058] [2024-11-27 23:15:03,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536582058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:03,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:03,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 23:15:03,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412880721] [2024-11-27 23:15:03,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:03,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:15:03,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:03,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:15:03,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:15:03,501 INFO L87 Difference]: Start difference. First operand 266 states and 368 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:04,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:04,254 INFO L93 Difference]: Finished difference Result 746 states and 1035 transitions. [2024-11-27 23:15:04,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:15:04,254 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-27 23:15:04,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:04,261 INFO L225 Difference]: With dead ends: 746 [2024-11-27 23:15:04,262 INFO L226 Difference]: Without dead ends: 483 [2024-11-27 23:15:04,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:15:04,263 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 221 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:04,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 1345 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:15:04,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-27 23:15:04,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 276. [2024-11-27 23:15:04,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 243 states have (on average 1.3415637860082306) internal successors, (326), 244 states have internal predecessors, (326), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-27 23:15:04,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 382 transitions. [2024-11-27 23:15:04,309 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 382 transitions. Word has length 143 [2024-11-27 23:15:04,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:04,310 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 382 transitions. [2024-11-27 23:15:04,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:04,311 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 382 transitions. [2024-11-27 23:15:04,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:15:04,313 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:04,313 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:04,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:15:04,314 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:04,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:04,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1833342046, now seen corresponding path program 1 times [2024-11-27 23:15:04,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:04,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770795768] [2024-11-27 23:15:04,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:04,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:04,880 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:04,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:04,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770795768] [2024-11-27 23:15:04,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770795768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:04,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:04,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:15:04,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368612247] [2024-11-27 23:15:04,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:04,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:15:04,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:04,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:15:04,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:15:04,883 INFO L87 Difference]: Start difference. First operand 276 states and 382 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:05,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:05,219 INFO L93 Difference]: Finished difference Result 748 states and 1034 transitions. [2024-11-27 23:15:05,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:15:05,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-27 23:15:05,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:05,223 INFO L225 Difference]: With dead ends: 748 [2024-11-27 23:15:05,223 INFO L226 Difference]: Without dead ends: 475 [2024-11-27 23:15:05,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:15:05,224 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 122 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:05,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1410 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:15:05,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-27 23:15:05,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 472. [2024-11-27 23:15:05,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 411 states have (on average 1.3309002433090025) internal successors, (547), 414 states have internal predecessors, (547), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-27 23:15:05,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 651 transitions. [2024-11-27 23:15:05,269 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 651 transitions. Word has length 143 [2024-11-27 23:15:05,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:05,270 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 651 transitions. [2024-11-27 23:15:05,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:05,270 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 651 transitions. [2024-11-27 23:15:05,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-27 23:15:05,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:05,272 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:05,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:15:05,273 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:05,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:05,273 INFO L85 PathProgramCache]: Analyzing trace with hash -330226388, now seen corresponding path program 1 times [2024-11-27 23:15:05,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:05,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609901401] [2024-11-27 23:15:05,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:05,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:05,680 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:05,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:05,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609901401] [2024-11-27 23:15:05,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609901401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:05,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:05,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:15:05,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459829825] [2024-11-27 23:15:05,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:05,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:05,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:05,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:05,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:05,683 INFO L87 Difference]: Start difference. First operand 472 states and 651 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:15:05,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:05,783 INFO L93 Difference]: Finished difference Result 944 states and 1299 transitions. [2024-11-27 23:15:05,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:05,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2024-11-27 23:15:05,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:05,787 INFO L225 Difference]: With dead ends: 944 [2024-11-27 23:15:05,787 INFO L226 Difference]: Without dead ends: 475 [2024-11-27 23:15:05,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:15:05,789 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 140 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:05,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 632 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:15:05,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-27 23:15:05,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 436. [2024-11-27 23:15:05,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 375 states have (on average 1.3226666666666667) internal successors, (496), 378 states have internal predecessors, (496), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-27 23:15:05,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 600 transitions. [2024-11-27 23:15:05,834 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 600 transitions. Word has length 144 [2024-11-27 23:15:05,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:05,835 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 600 transitions. [2024-11-27 23:15:05,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:15:05,835 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 600 transitions. [2024-11-27 23:15:05,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-27 23:15:05,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:05,837 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:05,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:15:05,838 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:05,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:05,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1205806378, now seen corresponding path program 1 times [2024-11-27 23:15:05,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:05,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657510257] [2024-11-27 23:15:05,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:05,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:15:05,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1990768240] [2024-11-27 23:15:05,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:05,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:15:05,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:05,967 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:15:05,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:15:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:06,571 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:15:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:06,949 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:15:06,950 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:15:06,951 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 23:15:06,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:15:07,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:15:07,156 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:07,288 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:15:07,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:15:07 BoogieIcfgContainer [2024-11-27 23:15:07,294 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:15:07,294 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:15:07,294 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:15:07,295 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:15:07,295 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:14:47" (3/4) ... [2024-11-27 23:15:07,298 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 23:15:07,298 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:15:07,300 INFO L158 Benchmark]: Toolchain (without parser) took 20886.68ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 92.6MB in the beginning and 251.2MB in the end (delta: -158.6MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. [2024-11-27 23:15:07,300 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:15:07,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.85ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 76.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:15:07,301 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.07ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 71.9MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:15:07,301 INFO L158 Benchmark]: Boogie Preprocessor took 135.21ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 66.5MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:15:07,301 INFO L158 Benchmark]: RCFGBuilder took 998.71ms. Allocated memory is still 117.4MB. Free memory was 66.5MB in the beginning and 81.8MB in the end (delta: -15.3MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2024-11-27 23:15:07,302 INFO L158 Benchmark]: TraceAbstraction took 19329.07ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 81.2MB in the beginning and 251.2MB in the end (delta: -170.0MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2024-11-27 23:15:07,302 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 352.3MB. Free memory was 251.2MB in the beginning and 251.2MB in the end (delta: 47.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:15:07,304 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.85ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 76.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.07ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 71.9MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 135.21ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 66.5MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 998.71ms. Allocated memory is still 117.4MB. Free memory was 66.5MB in the beginning and 81.8MB in the end (delta: -15.3MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * TraceAbstraction took 19329.07ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 81.2MB in the beginning and 251.2MB in the end (delta: -170.0MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 352.3MB. Free memory was 251.2MB in the beginning and 251.2MB in the end (delta: 47.0kB). 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 someBinaryFLOATComparisonOperation at line 105, overapproximation of someBinaryFLOATComparisonOperation at line 69, overapproximation of someBinaryFLOATComparisonOperation at line 78, overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryFLOATComparisonOperation at line 78, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someUnaryFLOAToperation at line 105, overapproximation of someUnaryFLOAToperation at line 69, overapproximation of someBinaryArithmeticFLOAToperation at line 69. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L25-L27] float float_Array_0[5] = { 127.8, 32.5, 256.6, 999.25, 1000000000.5 }; [L25-L27] float float_Array_0[5] = { 127.8, 32.5, 256.6, 999.25, 1000000000.5 }; [L25-L27] float float_Array_0[5] = { 127.8, 32.5, 256.6, 999.25, 1000000000.5 }; [L25-L27] float float_Array_0[5] = { 127.8, 32.5, 256.6, 999.25, 1000000000.5 }; [L25-L27] float float_Array_0[5] = { 127.8, 32.5, 256.6, 999.25, 1000000000.5 }; [L25-L27] float float_Array_0[5] = { 127.8, 32.5, 256.6, 999.25, 1000000000.5 }; [L28-L30] signed long int signed_long_int_Array_0[1] = { 0 }; [L28-L30] signed long int signed_long_int_Array_0[1] = { 0 }; [L31-L33] signed short int signed_short_int_Array_0[2] = { -32, 8 }; [L31-L33] signed short int signed_short_int_Array_0[2] = { -32, 8 }; [L31-L33] signed short int signed_short_int_Array_0[2] = { -32, 8 }; [L34-L36] unsigned char unsigned_char_Array_0[2][2] = { {2, 128}, {10, 64} }; [L34-L36] unsigned char unsigned_char_Array_0[2][2] = { {2, 128}, {10, 64} }; [L34-L36] unsigned char unsigned_char_Array_0[2][2] = { {2, 128}, {10, 64} }; [L34-L36] unsigned char unsigned_char_Array_0[2][2] = { {2, 128}, {10, 64} }; [L34-L36] unsigned char unsigned_char_Array_0[2][2] = { {2, 128}, {10, 64} }; [L37] signed long int last_1_signed_long_int_Array_0_0_ = 0; VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=0, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L109] isInitial = 1 [L110] FCALL initially() [L112] CALL updateLastVariables() [L102] EXPR signed_long_int_Array_0[0] [L102] last_1_signed_long_int_Array_0_0_ = signed_long_int_Array_0[0] [L112] RET updateLastVariables() [L113] CALL updateVariables() [L74] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L75] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L75] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L75] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L76] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L77] float_Array_0[0] = __VERIFIER_nondet_float() [L78] EXPR float_Array_0[0] [L78] EXPR float_Array_0[0] >= -461168.6018427382800e+13F && float_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L78] EXPR float_Array_0[0] >= -461168.6018427382800e+13F && float_Array_0[0] <= -1.0e-20F [L78] EXPR float_Array_0[0] [L78] EXPR float_Array_0[0] >= -461168.6018427382800e+13F && float_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L78] EXPR (float_Array_0[0] >= -461168.6018427382800e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 4611686.018427382800e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L78] EXPR (float_Array_0[0] >= -461168.6018427382800e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 4611686.018427382800e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L78] CALL assume_abort_if_not((float_Array_0[0] >= -461168.6018427382800e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 4611686.018427382800e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L78] RET assume_abort_if_not((float_Array_0[0] >= -461168.6018427382800e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 4611686.018427382800e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L79] float_Array_0[3] = __VERIFIER_nondet_float() [L80] EXPR float_Array_0[3] [L80] EXPR float_Array_0[3] >= -461168.6018427382800e+13F && float_Array_0[3] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L80] EXPR float_Array_0[3] >= -461168.6018427382800e+13F && float_Array_0[3] <= -1.0e-20F [L80] EXPR float_Array_0[3] [L80] EXPR float_Array_0[3] >= -461168.6018427382800e+13F && float_Array_0[3] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L80] EXPR (float_Array_0[3] >= -461168.6018427382800e+13F && float_Array_0[3] <= -1.0e-20F) || (float_Array_0[3] <= 4611686.018427382800e+12F && float_Array_0[3] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L80] EXPR (float_Array_0[3] >= -461168.6018427382800e+13F && float_Array_0[3] <= -1.0e-20F) || (float_Array_0[3] <= 4611686.018427382800e+12F && float_Array_0[3] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L80] CALL assume_abort_if_not((float_Array_0[3] >= -461168.6018427382800e+13F && float_Array_0[3] <= -1.0e-20F) || (float_Array_0[3] <= 4611686.018427382800e+12F && float_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L80] RET assume_abort_if_not((float_Array_0[3] >= -461168.6018427382800e+13F && float_Array_0[3] <= -1.0e-20F) || (float_Array_0[3] <= 4611686.018427382800e+12F && float_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L81] float_Array_0[4] = __VERIFIER_nondet_float() [L82] EXPR float_Array_0[4] [L82] EXPR float_Array_0[4] >= 0.0F && float_Array_0[4] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L82] EXPR float_Array_0[4] >= 0.0F && float_Array_0[4] <= -1.0e-20F [L82] EXPR float_Array_0[4] [L82] EXPR float_Array_0[4] >= 0.0F && float_Array_0[4] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L82] EXPR (float_Array_0[4] >= 0.0F && float_Array_0[4] <= -1.0e-20F) || (float_Array_0[4] <= 9223372.036854765600e+12F && float_Array_0[4] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L82] EXPR (float_Array_0[4] >= 0.0F && float_Array_0[4] <= -1.0e-20F) || (float_Array_0[4] <= 9223372.036854765600e+12F && float_Array_0[4] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L82] CALL assume_abort_if_not((float_Array_0[4] >= 0.0F && float_Array_0[4] <= -1.0e-20F) || (float_Array_0[4] <= 9223372.036854765600e+12F && float_Array_0[4] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L82] RET assume_abort_if_not((float_Array_0[4] >= 0.0F && float_Array_0[4] <= -1.0e-20F) || (float_Array_0[4] <= 9223372.036854765600e+12F && float_Array_0[4] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L83] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L84] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L84] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= -32768) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L84] RET assume_abort_if_not(signed_short_int_Array_0[0] >= -32768) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L85] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L85] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L85] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L86] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L86] CALL assume_abort_if_not(signed_short_int_Array_0[0] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L86] RET assume_abort_if_not(signed_short_int_Array_0[0] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L87] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L88] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L88] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= -32768) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L88] RET assume_abort_if_not(signed_short_int_Array_0[1] >= -32768) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L89] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L89] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L89] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L90] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L90] CALL assume_abort_if_not(signed_short_int_Array_0[1] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L90] RET assume_abort_if_not(signed_short_int_Array_0[1] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L91] unsigned_char_Array_0[0][0] = __VERIFIER_nondet_uchar() [L92] EXPR unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L92] CALL assume_abort_if_not(unsigned_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L92] RET assume_abort_if_not(unsigned_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L93] EXPR unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L93] CALL assume_abort_if_not(unsigned_char_Array_0[0][0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L93] RET assume_abort_if_not(unsigned_char_Array_0[0][0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L94] unsigned_char_Array_0[1][0] = __VERIFIER_nondet_uchar() [L95] EXPR unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] CALL assume_abort_if_not(unsigned_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] RET assume_abort_if_not(unsigned_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L96] EXPR unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L96] CALL assume_abort_if_not(unsigned_char_Array_0[1][0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L96] RET assume_abort_if_not(unsigned_char_Array_0[1][0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L97] unsigned_char_Array_0[0][1] = __VERIFIER_nondet_uchar() [L98] EXPR unsigned_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L98] CALL assume_abort_if_not(unsigned_char_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L98] RET assume_abort_if_not(unsigned_char_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L99] EXPR unsigned_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L99] CALL assume_abort_if_not(unsigned_char_Array_0[0][1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L99] RET assume_abort_if_not(unsigned_char_Array_0[0][1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L113] RET updateVariables() [L114] CALL step() [L41] EXPR signed_short_int_Array_0[1] [L41] EXPR signed_short_int_Array_0[0] [L41] signed long int stepLocal_0 = (last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0]; [L42] BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L42] COND FALSE !(BOOL_unsigned_char_Array_0[0]) [L47] EXPR unsigned_char_Array_0[0][0] [L47] unsigned_char_Array_0[1][1] = unsigned_char_Array_0[0][0] [L49] EXPR unsigned_char_Array_0[1][1] [L49] unsigned char stepLocal_2 = unsigned_char_Array_0[1][1]; [L50] EXPR unsigned_char_Array_0[1][1] [L50] EXPR unsigned_char_Array_0[1][1] [L50] signed long int stepLocal_1 = unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]; [L51] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L51] COND FALSE !(stepLocal_1 < signed_short_int_Array_0[0]) [L60] EXPR unsigned_char_Array_0[0][0] [L60] signed_long_int_Array_0[0] = unsigned_char_Array_0[0][0] [L62] EXPR unsigned_char_Array_0[1][1] [L62] unsigned char stepLocal_4 = unsigned_char_Array_0[1][1]; [L63] EXPR unsigned_char_Array_0[0][0] [L63] EXPR signed_short_int_Array_0[1] [L63] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L63] EXPR (unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, stepLocal_0=0, stepLocal_2=260, stepLocal_4=260, unsigned_char_Array_0={8:0}] [L63] signed long int stepLocal_3 = (unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0]; [L64] EXPR signed_long_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L64] COND FALSE !(stepLocal_4 > signed_long_int_Array_0[0]) [L69] EXPR float_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L69] EXPR ((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]) [L69] EXPR float_Array_0[0] [L69] EXPR ((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, stepLocal_0=0, stepLocal_2=260, stepLocal_3=0, unsigned_char_Array_0={8:0}] [L69] EXPR float_Array_0[4] [L69] float_Array_0[1] = (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4]) [L71] EXPR float_Array_0[4] [L71] float_Array_0[2] = float_Array_0[4] [L114] RET step() [L115] CALL, EXPR property() [L105] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L105] EXPR BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0])) [L105] EXPR unsigned_char_Array_0[1][1] [L105] EXPR unsigned_char_Array_0[0][0] [L105] EXPR BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L105] EXPR (BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L105] EXPR (BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0]))) [L105] EXPR unsigned_char_Array_0[1][1] [L105] EXPR unsigned_char_Array_0[1][1] [L105] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L105] EXPR ((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0])) [L105] EXPR signed_long_int_Array_0[0] [L105] EXPR unsigned_char_Array_0[0][0] [L105] EXPR ((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L105] EXPR (BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L105] EXPR ((BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0])))) && ((unsigned_char_Array_0[1][1] > signed_long_int_Array_0[0]) ? ((unsigned_char_Array_0[1][1] <= ((unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0])) ? (float_Array_0[1] == ((float) (float_Array_0[0] + float_Array_0[3]))) : 1) : (float_Array_0[1] == ((float) (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L105] EXPR ((BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0])))) && ((unsigned_char_Array_0[1][1] > signed_long_int_Array_0[0]) ? ((unsigned_char_Array_0[1][1] <= ((unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0])) ? (float_Array_0[1] == ((float) (float_Array_0[0] + float_Array_0[3]))) : 1) : (float_Array_0[1] == ((float) (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4])))) [L105] EXPR unsigned_char_Array_0[1][1] [L105] EXPR signed_long_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L105] EXPR (unsigned_char_Array_0[1][1] > signed_long_int_Array_0[0]) ? ((unsigned_char_Array_0[1][1] <= ((unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0])) ? (float_Array_0[1] == ((float) (float_Array_0[0] + float_Array_0[3]))) : 1) : (float_Array_0[1] == ((float) (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4]))) [L105] EXPR float_Array_0[1] [L105] EXPR float_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L105] EXPR ((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]) [L105] EXPR float_Array_0[0] [L105] EXPR ((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L105] EXPR float_Array_0[4] [L105] EXPR (unsigned_char_Array_0[1][1] > signed_long_int_Array_0[0]) ? ((unsigned_char_Array_0[1][1] <= ((unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0])) ? (float_Array_0[1] == ((float) (float_Array_0[0] + float_Array_0[3]))) : 1) : (float_Array_0[1] == ((float) (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L105] EXPR ((BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0])))) && ((unsigned_char_Array_0[1][1] > signed_long_int_Array_0[0]) ? ((unsigned_char_Array_0[1][1] <= ((unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0])) ? (float_Array_0[1] == ((float) (float_Array_0[0] + float_Array_0[3]))) : 1) : (float_Array_0[1] == ((float) (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L105] EXPR (((BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0])))) && ((unsigned_char_Array_0[1][1] > signed_long_int_Array_0[0]) ? ((unsigned_char_Array_0[1][1] <= ((unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0])) ? (float_Array_0[1] == ((float) (float_Array_0[0] + float_Array_0[3]))) : 1) : (float_Array_0[1] == ((float) (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4]))))) && (float_Array_0[2] == ((float) float_Array_0[4])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L105] EXPR (((BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0])))) && ((unsigned_char_Array_0[1][1] > signed_long_int_Array_0[0]) ? ((unsigned_char_Array_0[1][1] <= ((unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0])) ? (float_Array_0[1] == ((float) (float_Array_0[0] + float_Array_0[3]))) : 1) : (float_Array_0[1] == ((float) (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4]))))) && (float_Array_0[2] == ((float) float_Array_0[4])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L105-L106] return (((BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0])))) && ((unsigned_char_Array_0[1][1] > signed_long_int_Array_0[0]) ? ((unsigned_char_Array_0[1][1] <= ((unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0])) ? (float_Array_0[1] == ((float) (float_Array_0[0] + float_Array_0[3]))) : 1) : (float_Array_0[1] == ((float) (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4]))))) && (float_Array_0[2] == ((float) float_Array_0[4])) ; [L115] RET, EXPR property() [L115] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 120 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.1s, OverallIterations: 14, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1795 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1790 mSDsluCounter, 12259 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9520 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2794 IncrementalHoareTripleChecker+Invalid, 2844 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 2739 mSDtfsCounter, 2794 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 413 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=472occurred in iteration=12, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 898 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 2398 NumberOfCodeBlocks, 2398 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2093 ConstructedInterpolants, 0 QuantifiedInterpolants, 4224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 938 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 8080/8160 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 [2024-11-27 23:15:07,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/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_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/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_bbfabb89-b3e6-4e18-9fb7-cab65078d447/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 6b58d24144d549c81ae478cdbe56bd6625ad814c6ede850dce7ec3284e5d3039 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:15:09,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:15:10,083 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-27 23:15:10,093 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:15:10,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:15:10,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:15:10,167 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:15:10,168 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:15:10,170 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:15:10,170 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:15:10,170 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:15:10,170 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:15:10,171 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:15:10,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:15:10,175 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:15:10,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:15:10,175 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:15:10,175 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:15:10,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:15:10,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:15:10,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:15:10,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:15:10,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:15:10,176 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 23:15:10,176 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 23:15:10,176 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 23:15:10,176 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:15:10,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:15:10,177 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:15:10,177 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:15:10,177 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:15:10,177 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:15:10,177 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:15:10,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:15:10,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:10,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:15:10,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:15:10,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:15:10,178 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:15:10,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:10,178 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:15:10,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:15:10,178 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:15:10,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:15:10,178 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 23:15:10,178 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 23:15:10,179 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:15:10,179 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:15:10,179 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:15:10,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:15:10,179 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_bbfabb89-b3e6-4e18-9fb7-cab65078d447/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 -> 6b58d24144d549c81ae478cdbe56bd6625ad814c6ede850dce7ec3284e5d3039 [2024-11-27 23:15:10,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:15:10,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:15:10,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:15:10,513 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:15:10,513 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:15:10,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i [2024-11-27 23:15:13,535 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/data/54c46ea9a/7d24499cb2b0451fbd0d05467fb80d5e/FLAGbff8df7c1 [2024-11-27 23:15:13,881 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:15:13,896 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i [2024-11-27 23:15:13,920 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/data/54c46ea9a/7d24499cb2b0451fbd0d05467fb80d5e/FLAGbff8df7c1 [2024-11-27 23:15:13,947 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/data/54c46ea9a/7d24499cb2b0451fbd0d05467fb80d5e [2024-11-27 23:15:13,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:15:13,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:15:13,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:15:13,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:15:13,961 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:15:13,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:15:13" (1/1) ... [2024-11-27 23:15:13,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c83b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:13, skipping insertion in model container [2024-11-27 23:15:13,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:15:13" (1/1) ... [2024-11-27 23:15:13,984 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:15:14,157 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_bbfabb89-b3e6-4e18-9fb7-cab65078d447/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i[916,929] [2024-11-27 23:15:14,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:15:14,283 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:15:14,297 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_bbfabb89-b3e6-4e18-9fb7-cab65078d447/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i[916,929] [2024-11-27 23:15:14,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:15:14,440 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:15:14,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14 WrapperNode [2024-11-27 23:15:14,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:15:14,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:15:14,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:15:14,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:15:14,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14" (1/1) ... [2024-11-27 23:15:14,474 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14" (1/1) ... [2024-11-27 23:15:14,526 INFO L138 Inliner]: procedures = 36, calls = 172, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 508 [2024-11-27 23:15:14,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:15:14,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:15:14,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:15:14,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:15:14,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14" (1/1) ... [2024-11-27 23:15:14,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14" (1/1) ... [2024-11-27 23:15:14,558 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14" (1/1) ... [2024-11-27 23:15:14,578 INFO L175 MemorySlicer]: Split 139 memory accesses to 6 slices as follows [2, 8, 40, 10, 22, 57]. 41 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 1, 5, 1, 2, 4]. The 17 writes are split as follows [0, 1, 6, 3, 2, 5]. [2024-11-27 23:15:14,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14" (1/1) ... [2024-11-27 23:15:14,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14" (1/1) ... [2024-11-27 23:15:14,604 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14" (1/1) ... [2024-11-27 23:15:14,606 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14" (1/1) ... [2024-11-27 23:15:14,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14" (1/1) ... [2024-11-27 23:15:14,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14" (1/1) ... [2024-11-27 23:15:14,618 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14" (1/1) ... [2024-11-27 23:15:14,623 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:15:14,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:15:14,625 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:15:14,625 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:15:14,626 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14" (1/1) ... [2024-11-27 23:15:14,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:14,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:14,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:15:14,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:15:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:15:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-27 23:15:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-27 23:15:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-27 23:15:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-27 23:15:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-27 23:15:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-27 23:15:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-27 23:15:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-27 23:15:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-27 23:15:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-27 23:15:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-11-27 23:15:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-11-27 23:15:14,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 23:15:14,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-27 23:15:14,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-27 23:15:14,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-27 23:15:14,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-27 23:15:14,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-27 23:15:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-27 23:15:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-27 23:15:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-27 23:15:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-27 23:15:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-27 23:15:14,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-27 23:15:14,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-27 23:15:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-27 23:15:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-27 23:15:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-27 23:15:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-27 23:15:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-27 23:15:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-27 23:15:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-27 23:15:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-27 23:15:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-27 23:15:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-27 23:15:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-27 23:15:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:15:14,708 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:15:14,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-27 23:15:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-27 23:15:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-27 23:15:14,938 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:15:14,940 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:15:16,284 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-27 23:15:16,284 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:15:16,304 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:15:16,304 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:15:16,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:16 BoogieIcfgContainer [2024-11-27 23:15:16,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:15:16,310 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:15:16,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:15:16,317 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:15:16,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:15:13" (1/3) ... [2024-11-27 23:15:16,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca86367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:15:16, skipping insertion in model container [2024-11-27 23:15:16,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:14" (2/3) ... [2024-11-27 23:15:16,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca86367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:15:16, skipping insertion in model container [2024-11-27 23:15:16,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:16" (3/3) ... [2024-11-27 23:15:16,321 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-30.i [2024-11-27 23:15:16,340 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:15:16,342 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-30.i that has 2 procedures, 115 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:15:16,405 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:15:16,417 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;@59165cf2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:15:16,417 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:15:16,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 95 states have (on average 1.4105263157894736) internal successors, (134), 96 states have internal predecessors, (134), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:15:16,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-27 23:15:16,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:16,434 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:16,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:16,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:16,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1481991790, now seen corresponding path program 1 times [2024-11-27 23:15:16,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:16,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506389250] [2024-11-27 23:15:16,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:16,453 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 [2024-11-27 23:15:16,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:16,455 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:16,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:17,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:15:17,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:17,082 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-27 23:15:17,083 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:15:17,086 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:17,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506389250] [2024-11-27 23:15:17,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506389250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:17,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:17,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:15:17,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284136573] [2024-11-27 23:15:17,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:17,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:15:17,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:17,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:15:17,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:15:17,122 INFO L87 Difference]: Start difference. First operand has 115 states, 95 states have (on average 1.4105263157894736) internal successors, (134), 96 states have internal predecessors, (134), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:15:17,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:17,157 INFO L93 Difference]: Finished difference Result 223 states and 347 transitions. [2024-11-27 23:15:17,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:15:17,159 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136 [2024-11-27 23:15:17,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:17,190 INFO L225 Difference]: With dead ends: 223 [2024-11-27 23:15:17,190 INFO L226 Difference]: Without dead ends: 111 [2024-11-27 23:15:17,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:15:17,196 INFO L435 NwaCegarLoop]: 161 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, 161 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 [2024-11-27 23:15:17,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:15:17,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-27 23:15:17,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-27 23:15:17,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 92 states have (on average 1.3804347826086956) internal successors, (127), 92 states have internal predecessors, (127), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:15:17,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 161 transitions. [2024-11-27 23:15:17,240 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 161 transitions. Word has length 136 [2024-11-27 23:15:17,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:17,241 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 161 transitions. [2024-11-27 23:15:17,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:15:17,241 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 161 transitions. [2024-11-27 23:15:17,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-27 23:15:17,248 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:17,248 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:17,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-27 23:15:17,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:17,449 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:17,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:17,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1858278148, now seen corresponding path program 1 times [2024-11-27 23:15:17,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:17,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503908402] [2024-11-27 23:15:17,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:17,451 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 [2024-11-27 23:15:17,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:17,455 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:17,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:17,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:15:18,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:18,059 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-27 23:15:18,059 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:15:18,060 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:18,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503908402] [2024-11-27 23:15:18,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503908402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:18,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:18,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:15:18,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537321069] [2024-11-27 23:15:18,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:18,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:15:18,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:18,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:15:18,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:15:18,063 INFO L87 Difference]: Start difference. First operand 111 states and 161 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:15:18,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:18,180 INFO L93 Difference]: Finished difference Result 221 states and 322 transitions. [2024-11-27 23:15:18,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:15:18,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136 [2024-11-27 23:15:18,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:18,190 INFO L225 Difference]: With dead ends: 221 [2024-11-27 23:15:18,190 INFO L226 Difference]: Without dead ends: 113 [2024-11-27 23:15:18,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:15:18,191 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:18,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 466 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:15:18,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-27 23:15:18,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-27 23:15:18,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 94 states have (on average 1.372340425531915) internal successors, (129), 94 states have internal predecessors, (129), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:15:18,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 163 transitions. [2024-11-27 23:15:18,207 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 163 transitions. Word has length 136 [2024-11-27 23:15:18,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:18,208 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 163 transitions. [2024-11-27 23:15:18,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:15:18,208 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 163 transitions. [2024-11-27 23:15:18,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-27 23:15:18,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:18,211 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:18,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:18,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:18,412 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:18,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:18,413 INFO L85 PathProgramCache]: Analyzing trace with hash -576105862, now seen corresponding path program 1 times [2024-11-27 23:15:18,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:18,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563225641] [2024-11-27 23:15:18,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:18,414 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 [2024-11-27 23:15:18,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:18,416 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:18,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:19,058 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:15:19,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:19,133 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:19,135 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:15:19,135 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:19,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563225641] [2024-11-27 23:15:19,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563225641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:19,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:19,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:19,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134399575] [2024-11-27 23:15:19,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:19,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:15:19,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:19,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:15:19,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:15:19,140 INFO L87 Difference]: Start difference. First operand 113 states and 163 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:19,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:19,247 INFO L93 Difference]: Finished difference Result 228 states and 330 transitions. [2024-11-27 23:15:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:15:19,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-27 23:15:19,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:19,251 INFO L225 Difference]: With dead ends: 228 [2024-11-27 23:15:19,252 INFO L226 Difference]: Without dead ends: 118 [2024-11-27 23:15:19,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:15:19,254 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 1 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:19,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 611 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:15:19,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-27 23:15:19,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-11-27 23:15:19,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 98 states have (on average 1.3571428571428572) internal successors, (133), 98 states have internal predecessors, (133), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:15:19,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 167 transitions. [2024-11-27 23:15:19,283 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 167 transitions. Word has length 136 [2024-11-27 23:15:19,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:19,284 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 167 transitions. [2024-11-27 23:15:19,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:19,284 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 167 transitions. [2024-11-27 23:15:19,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-27 23:15:19,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:19,291 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:19,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:19,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:19,495 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:19,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:19,496 INFO L85 PathProgramCache]: Analyzing trace with hash -574258820, now seen corresponding path program 1 times [2024-11-27 23:15:19,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:19,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475620823] [2024-11-27 23:15:19,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:19,497 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 [2024-11-27 23:15:19,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:19,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:19,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:20,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:15:20,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:20,331 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 95 treesize of output 41 [2024-11-27 23:15:20,394 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-27 23:15:20,395 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:15:20,395 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:20,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475620823] [2024-11-27 23:15:20,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475620823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:20,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:20,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:20,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583172371] [2024-11-27 23:15:20,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:20,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:20,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:20,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:20,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:20,398 INFO L87 Difference]: Start difference. First operand 117 states and 167 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:15:21,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:21,456 INFO L93 Difference]: Finished difference Result 232 states and 332 transitions. [2024-11-27 23:15:21,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:15:21,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136 [2024-11-27 23:15:21,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:21,460 INFO L225 Difference]: With dead ends: 232 [2024-11-27 23:15:21,460 INFO L226 Difference]: Without dead ends: 118 [2024-11-27 23:15:21,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:15:21,462 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 134 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:21,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 505 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:15:21,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-27 23:15:21,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-11-27 23:15:21,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 98 states have (on average 1.346938775510204) internal successors, (132), 98 states have internal predecessors, (132), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:15:21,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 166 transitions. [2024-11-27 23:15:21,483 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 166 transitions. Word has length 136 [2024-11-27 23:15:21,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:21,486 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 166 transitions. [2024-11-27 23:15:21,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:15:21,487 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 166 transitions. [2024-11-27 23:15:21,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-27 23:15:21,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:21,491 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:21,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-27 23:15:21,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:21,692 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:21,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:21,692 INFO L85 PathProgramCache]: Analyzing trace with hash 950333250, now seen corresponding path program 1 times [2024-11-27 23:15:21,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:21,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523723028] [2024-11-27 23:15:21,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:21,693 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 [2024-11-27 23:15:21,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:21,697 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:21,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:22,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:15:22,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:22,455 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 [2024-11-27 23:15:22,465 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 19 treesize of output 19 [2024-11-27 23:15:22,511 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 [2024-11-27 23:15:22,568 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:15:22,568 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 39 treesize of output 19 [2024-11-27 23:15:22,579 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 [2024-11-27 23:15:22,629 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:22,630 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:15:22,630 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:22,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523723028] [2024-11-27 23:15:22,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523723028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:22,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:22,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:22,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824058893] [2024-11-27 23:15:22,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:22,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:15:22,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:22,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:15:22,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:15:22,633 INFO L87 Difference]: Start difference. First operand 117 states and 166 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:23,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:23,563 INFO L93 Difference]: Finished difference Result 412 states and 582 transitions. [2024-11-27 23:15:23,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:15:23,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-11-27 23:15:23,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:23,567 INFO L225 Difference]: With dead ends: 412 [2024-11-27 23:15:23,568 INFO L226 Difference]: Without dead ends: 298 [2024-11-27 23:15:23,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:23,569 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 328 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:23,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 590 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:15:23,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-27 23:15:23,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 209. [2024-11-27 23:15:23,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 178 states have (on average 1.353932584269663) internal successors, (241), 179 states have internal predecessors, (241), 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) [2024-11-27 23:15:23,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 297 transitions. [2024-11-27 23:15:23,600 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 297 transitions. Word has length 138 [2024-11-27 23:15:23,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:23,600 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 297 transitions. [2024-11-27 23:15:23,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:23,601 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 297 transitions. [2024-11-27 23:15:23,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-27 23:15:23,603 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:23,603 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:23,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-27 23:15:23,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:23,804 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:23,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:23,804 INFO L85 PathProgramCache]: Analyzing trace with hash -140302980, now seen corresponding path program 1 times [2024-11-27 23:15:23,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:23,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103511195] [2024-11-27 23:15:23,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:23,805 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 [2024-11-27 23:15:23,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:23,807 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:23,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:24,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 23:15:24,429 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:24,450 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 [2024-11-27 23:15:24,460 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 [2024-11-27 23:15:24,467 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 [2024-11-27 23:15:24,477 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 19 treesize of output 19 [2024-11-27 23:15:24,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:15:24,584 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 60 treesize of output 30 [2024-11-27 23:15:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:24,626 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:15:24,626 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:24,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103511195] [2024-11-27 23:15:24,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103511195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:24,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:24,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:24,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467293871] [2024-11-27 23:15:24,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:24,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:15:24,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:24,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:15:24,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:15:24,631 INFO L87 Difference]: Start difference. First operand 209 states and 297 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:25,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:25,260 INFO L93 Difference]: Finished difference Result 420 states and 596 transitions. [2024-11-27 23:15:25,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:15:25,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-27 23:15:25,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:25,265 INFO L225 Difference]: With dead ends: 420 [2024-11-27 23:15:25,269 INFO L226 Difference]: Without dead ends: 214 [2024-11-27 23:15:25,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:15:25,271 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 118 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:25,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 729 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:15:25,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-27 23:15:25,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 211. [2024-11-27 23:15:25,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 180 states have (on average 1.35) internal successors, (243), 181 states have internal predecessors, (243), 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) [2024-11-27 23:15:25,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 299 transitions. [2024-11-27 23:15:25,302 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 299 transitions. Word has length 139 [2024-11-27 23:15:25,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:25,303 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 299 transitions. [2024-11-27 23:15:25,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:25,304 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 299 transitions. [2024-11-27 23:15:25,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-27 23:15:25,306 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:25,306 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:25,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:25,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:25,507 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:25,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:25,507 INFO L85 PathProgramCache]: Analyzing trace with hash -488724721, now seen corresponding path program 1 times [2024-11-27 23:15:25,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:25,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572754071] [2024-11-27 23:15:25,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:25,508 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 [2024-11-27 23:15:25,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:25,510 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:25,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:25,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:15:25,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:26,678 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 [2024-11-27 23:15:26,745 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 78 proven. 45 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-27 23:15:26,747 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:15:27,070 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:27,070 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:27,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572754071] [2024-11-27 23:15:27,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572754071] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:15:27,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:15:27,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-27 23:15:27,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899762240] [2024-11-27 23:15:27,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:27,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:15:27,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:27,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:15:27,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:15:27,074 INFO L87 Difference]: Start difference. First operand 211 states and 299 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:27,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:27,283 INFO L93 Difference]: Finished difference Result 423 states and 598 transitions. [2024-11-27 23:15:27,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:15:27,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-27 23:15:27,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:27,290 INFO L225 Difference]: With dead ends: 423 [2024-11-27 23:15:27,290 INFO L226 Difference]: Without dead ends: 215 [2024-11-27 23:15:27,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:15:27,292 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 68 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:27,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 709 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:15:27,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-27 23:15:27,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2024-11-27 23:15:27,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 180 states have (on average 1.3444444444444446) internal successors, (242), 181 states have internal predecessors, (242), 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) [2024-11-27 23:15:27,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 298 transitions. [2024-11-27 23:15:27,317 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 298 transitions. Word has length 139 [2024-11-27 23:15:27,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:27,318 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 298 transitions. [2024-11-27 23:15:27,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:27,318 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 298 transitions. [2024-11-27 23:15:27,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 23:15:27,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:27,320 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:27,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:27,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:27,521 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:27,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:27,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1175255367, now seen corresponding path program 1 times [2024-11-27 23:15:27,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:27,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549605129] [2024-11-27 23:15:27,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:27,522 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 [2024-11-27 23:15:27,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:27,524 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:27,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:27,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:15:27,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:27,979 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 [2024-11-27 23:15:28,112 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:28,112 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:15:28,112 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:28,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549605129] [2024-11-27 23:15:28,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549605129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:28,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:28,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:15:28,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242135668] [2024-11-27 23:15:28,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:28,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:28,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:28,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:28,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:28,114 INFO L87 Difference]: Start difference. First operand 211 states and 298 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:28,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:28,700 INFO L93 Difference]: Finished difference Result 601 states and 845 transitions. [2024-11-27 23:15:28,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:28,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-27 23:15:28,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:28,704 INFO L225 Difference]: With dead ends: 601 [2024-11-27 23:15:28,704 INFO L226 Difference]: Without dead ends: 393 [2024-11-27 23:15:28,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:15:28,706 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 111 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:28,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 913 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:15:28,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-27 23:15:28,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 242. [2024-11-27 23:15:28,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 211 states have (on average 1.3459715639810426) internal successors, (284), 212 states have internal predecessors, (284), 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) [2024-11-27 23:15:28,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 340 transitions. [2024-11-27 23:15:28,726 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 340 transitions. Word has length 141 [2024-11-27 23:15:28,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:28,727 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 340 transitions. [2024-11-27 23:15:28,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:28,727 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 340 transitions. [2024-11-27 23:15:28,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 23:15:28,729 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:28,729 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:28,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:28,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:28,933 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:28,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:28,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1015060480, now seen corresponding path program 1 times [2024-11-27 23:15:28,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:28,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401298542] [2024-11-27 23:15:28,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:28,934 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 [2024-11-27 23:15:28,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:28,936 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:28,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-27 23:15:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:29,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:15:29,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:29,988 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 78 proven. 45 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-27 23:15:29,988 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:15:30,216 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:30,216 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:30,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401298542] [2024-11-27 23:15:30,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401298542] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:15:30,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:15:30,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-27 23:15:30,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725318389] [2024-11-27 23:15:30,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:30,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:15:30,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:30,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:15:30,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:15:30,219 INFO L87 Difference]: Start difference. First operand 242 states and 340 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:30,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:30,360 INFO L93 Difference]: Finished difference Result 502 states and 701 transitions. [2024-11-27 23:15:30,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:15:30,360 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-27 23:15:30,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:30,362 INFO L225 Difference]: With dead ends: 502 [2024-11-27 23:15:30,363 INFO L226 Difference]: Without dead ends: 263 [2024-11-27 23:15:30,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:15:30,364 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 92 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:30,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 451 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:15:30,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-27 23:15:30,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 232. [2024-11-27 23:15:30,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 201 states have (on average 1.328358208955224) internal successors, (267), 202 states have internal predecessors, (267), 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) [2024-11-27 23:15:30,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 323 transitions. [2024-11-27 23:15:30,379 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 323 transitions. Word has length 141 [2024-11-27 23:15:30,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:30,379 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 323 transitions. [2024-11-27 23:15:30,380 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:30,380 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 323 transitions. [2024-11-27 23:15:30,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 23:15:30,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:30,381 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:30,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-27 23:15:30,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:30,582 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:30,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:30,583 INFO L85 PathProgramCache]: Analyzing trace with hash 444051324, now seen corresponding path program 1 times [2024-11-27 23:15:30,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:30,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955113488] [2024-11-27 23:15:30,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:30,583 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 [2024-11-27 23:15:30,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:30,587 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:30,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:31,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 23:15:31,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:31,240 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 15 [2024-11-27 23:15:31,442 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 [2024-11-27 23:15:33,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:15:33,027 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 94 treesize of output 54 [2024-11-27 23:15:33,058 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:15:33,058 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 47 treesize of output 29 [2024-11-27 23:15:33,589 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:33,590 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:15:33,590 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:33,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955113488] [2024-11-27 23:15:33,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955113488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:33,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:33,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 23:15:33,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152017019] [2024-11-27 23:15:33,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:33,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:15:33,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:33,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:15:33,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:15:33,592 INFO L87 Difference]: Start difference. First operand 232 states and 323 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:41,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:41,351 INFO L93 Difference]: Finished difference Result 824 states and 1135 transitions. [2024-11-27 23:15:41,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:15:41,357 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-27 23:15:41,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:41,361 INFO L225 Difference]: With dead ends: 824 [2024-11-27 23:15:41,362 INFO L226 Difference]: Without dead ends: 595 [2024-11-27 23:15:41,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:15:41,365 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 303 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:41,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 1547 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-27 23:15:41,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-27 23:15:41,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 343. [2024-11-27 23:15:41,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 300 states have (on average 1.33) internal successors, (399), 303 states have internal predecessors, (399), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-27 23:15:41,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 475 transitions. [2024-11-27 23:15:41,405 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 475 transitions. Word has length 141 [2024-11-27 23:15:41,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:41,409 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 475 transitions. [2024-11-27 23:15:41,409 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:41,409 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 475 transitions. [2024-11-27 23:15:41,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 23:15:41,411 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:41,411 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:41,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:41,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:41,612 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:41,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:41,614 INFO L85 PathProgramCache]: Analyzing trace with hash -577017030, now seen corresponding path program 1 times [2024-11-27 23:15:41,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:41,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112469017] [2024-11-27 23:15:41,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:41,615 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 [2024-11-27 23:15:41,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:41,618 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:41,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:42,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:15:42,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:42,357 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 40 treesize of output 22 [2024-11-27 23:15:42,367 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 [2024-11-27 23:15:42,478 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:42,478 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:15:42,478 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:42,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112469017] [2024-11-27 23:15:42,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112469017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:42,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:42,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:42,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982674772] [2024-11-27 23:15:42,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:42,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:15:42,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:42,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:15:42,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:15:42,481 INFO L87 Difference]: Start difference. First operand 343 states and 475 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:43,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:43,523 INFO L93 Difference]: Finished difference Result 659 states and 909 transitions. [2024-11-27 23:15:43,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:15:43,524 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-27 23:15:43,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:43,526 INFO L225 Difference]: With dead ends: 659 [2024-11-27 23:15:43,526 INFO L226 Difference]: Without dead ends: 347 [2024-11-27 23:15:43,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:43,532 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 94 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:43,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 739 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:15:43,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-27 23:15:43,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 317. [2024-11-27 23:15:43,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 274 states have (on average 1.3211678832116789) internal successors, (362), 277 states have internal predecessors, (362), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-27 23:15:43,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 438 transitions. [2024-11-27 23:15:43,559 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 438 transitions. Word has length 141 [2024-11-27 23:15:43,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:43,559 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 438 transitions. [2024-11-27 23:15:43,559 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:43,560 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 438 transitions. [2024-11-27 23:15:43,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 23:15:43,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:43,563 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:43,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:43,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:43,764 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:43,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:43,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1189216467, now seen corresponding path program 1 times [2024-11-27 23:15:43,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:43,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958283820] [2024-11-27 23:15:43,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:43,765 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 [2024-11-27 23:15:43,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:43,766 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:43,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:44,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:15:44,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:44,345 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:44,346 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:15:44,346 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:44,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958283820] [2024-11-27 23:15:44,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958283820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:44,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:44,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:44,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676694499] [2024-11-27 23:15:44,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:44,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:15:44,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:44,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:15:44,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:15:44,348 INFO L87 Difference]: Start difference. First operand 317 states and 438 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:44,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:44,436 INFO L93 Difference]: Finished difference Result 609 states and 840 transitions. [2024-11-27 23:15:44,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:15:44,437 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-27 23:15:44,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:44,439 INFO L225 Difference]: With dead ends: 609 [2024-11-27 23:15:44,439 INFO L226 Difference]: Without dead ends: 323 [2024-11-27 23:15:44,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:15:44,441 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:44,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 618 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:15:44,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-27 23:15:44,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 321. [2024-11-27 23:15:44,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 278 states have (on average 1.316546762589928) internal successors, (366), 281 states have internal predecessors, (366), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-27 23:15:44,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 442 transitions. [2024-11-27 23:15:44,462 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 442 transitions. Word has length 141 [2024-11-27 23:15:44,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:44,463 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 442 transitions. [2024-11-27 23:15:44,463 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:44,463 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 442 transitions. [2024-11-27 23:15:44,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:15:44,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:44,465 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:44,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:44,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:44,665 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:44,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:44,666 INFO L85 PathProgramCache]: Analyzing trace with hash 550743285, now seen corresponding path program 1 times [2024-11-27 23:15:44,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:44,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99499718] [2024-11-27 23:15:44,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:44,666 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 [2024-11-27 23:15:44,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:44,668 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:44,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:45,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:15:45,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:45,323 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 23 [2024-11-27 23:15:45,330 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 [2024-11-27 23:15:45,432 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:45,433 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:15:45,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:45,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99499718] [2024-11-27 23:15:45,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99499718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:45,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:45,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:45,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890088364] [2024-11-27 23:15:45,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:45,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:15:45,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:45,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:15:45,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:15:45,434 INFO L87 Difference]: Start difference. First operand 321 states and 442 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:46,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:46,361 INFO L93 Difference]: Finished difference Result 616 states and 839 transitions. [2024-11-27 23:15:46,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:15:46,362 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-27 23:15:46,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:46,364 INFO L225 Difference]: With dead ends: 616 [2024-11-27 23:15:46,364 INFO L226 Difference]: Without dead ends: 326 [2024-11-27 23:15:46,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:46,366 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 86 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:46,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 520 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:15:46,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-27 23:15:46,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 244. [2024-11-27 23:15:46,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 211 states have (on average 1.2985781990521328) internal successors, (274), 212 states have internal predecessors, (274), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-27 23:15:46,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 330 transitions. [2024-11-27 23:15:46,387 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 330 transitions. Word has length 143 [2024-11-27 23:15:46,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:46,390 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 330 transitions. [2024-11-27 23:15:46,390 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:46,390 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 330 transitions. [2024-11-27 23:15:46,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:15:46,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:46,392 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:46,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:46,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:46,593 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:46,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:46,593 INFO L85 PathProgramCache]: Analyzing trace with hash -2056672790, now seen corresponding path program 1 times [2024-11-27 23:15:46,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:46,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790270711] [2024-11-27 23:15:46,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:46,594 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 [2024-11-27 23:15:46,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:46,597 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:46,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:47,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:15:47,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:47,085 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 15 [2024-11-27 23:15:47,218 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:47,219 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:15:47,219 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:47,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790270711] [2024-11-27 23:15:47,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790270711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:47,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:47,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:15:47,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43973317] [2024-11-27 23:15:47,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:47,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:15:47,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:47,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:15:47,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:15:47,221 INFO L87 Difference]: Start difference. First operand 244 states and 330 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:47,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:47,916 INFO L93 Difference]: Finished difference Result 673 states and 909 transitions. [2024-11-27 23:15:47,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:15:47,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-27 23:15:47,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:47,920 INFO L225 Difference]: With dead ends: 673 [2024-11-27 23:15:47,920 INFO L226 Difference]: Without dead ends: 432 [2024-11-27 23:15:47,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:15:47,922 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 116 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:47,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 1323 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:15:47,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-27 23:15:47,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 429. [2024-11-27 23:15:47,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 368 states have (on average 1.2880434782608696) internal successors, (474), 371 states have internal predecessors, (474), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-27 23:15:47,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 578 transitions. [2024-11-27 23:15:47,953 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 578 transitions. Word has length 143 [2024-11-27 23:15:47,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:47,953 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 578 transitions. [2024-11-27 23:15:47,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:47,954 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 578 transitions. [2024-11-27 23:15:47,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-27 23:15:47,956 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:47,956 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:47,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:48,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:48,157 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:48,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:48,157 INFO L85 PathProgramCache]: Analyzing trace with hash 760703186, now seen corresponding path program 1 times [2024-11-27 23:15:48,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:48,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912215597] [2024-11-27 23:15:48,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:48,158 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 [2024-11-27 23:15:48,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:48,160 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:48,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-27 23:15:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:48,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:15:48,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:49,148 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 78 proven. 45 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-27 23:15:49,149 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:15:49,332 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:15:49,332 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:49,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912215597] [2024-11-27 23:15:49,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912215597] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:15:49,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:15:49,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-27 23:15:49,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069417827] [2024-11-27 23:15:49,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:49,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:15:49,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:15:49,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:15:49,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:15:49,334 INFO L87 Difference]: Start difference. First operand 429 states and 578 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:49,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:49,468 INFO L93 Difference]: Finished difference Result 858 states and 1153 transitions. [2024-11-27 23:15:49,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:15:49,469 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-27 23:15:49,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:49,472 INFO L225 Difference]: With dead ends: 858 [2024-11-27 23:15:49,472 INFO L226 Difference]: Without dead ends: 432 [2024-11-27 23:15:49,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:15:49,474 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 49 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:49,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 600 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:15:49,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-27 23:15:49,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 408. [2024-11-27 23:15:49,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 347 states have (on average 1.282420749279539) internal successors, (445), 350 states have internal predecessors, (445), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-27 23:15:49,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 549 transitions. [2024-11-27 23:15:49,504 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 549 transitions. Word has length 144 [2024-11-27 23:15:49,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:49,505 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 549 transitions. [2024-11-27 23:15:49,505 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:15:49,505 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 549 transitions. [2024-11-27 23:15:49,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-27 23:15:49,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:49,507 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:49,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-27 23:15:49,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:15:49,707 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:49,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:49,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1780781997, now seen corresponding path program 1 times [2024-11-27 23:15:49,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:15:49,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665307402] [2024-11-27 23:15:49,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:49,708 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 [2024-11-27 23:15:49,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:15:49,710 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:15:49,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:15:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:50,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 23:15:50,344 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:50,480 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 [2024-11-27 23:15:52,007 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 78 treesize of output 32 [2024-11-27 23:15:52,024 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 129 treesize of output 65 [2024-11-27 23:15:52,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:15:52,353 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 219 treesize of output 75 [2024-11-27 23:15:52,508 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 244 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-27 23:15:52,508 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:15:52,966 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:15:52,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665307402] [2024-11-27 23:15:52,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665307402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:15:52,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1240611833] [2024-11-27 23:15:52,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:52,967 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:15:52,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:15:52,973 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:15:52,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-27 23:15:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:55,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-27 23:15:55,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:55,866 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 [2024-11-27 23:15:56,671 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 64 treesize of output 32 [2024-11-27 23:15:56,872 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 64 treesize of output 32 [2024-11-27 23:16:02,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:16:02,951 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 110 treesize of output 61 [2024-11-27 23:16:03,015 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:16:03,016 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 149 treesize of output 88 [2024-11-27 23:16:19,290 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:16:19,290 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 280 treesize of output 124 [2024-11-27 23:16:19,655 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 236 proven. 36 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-27 23:16:19,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:16:34,892 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:16:34,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1240611833] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:16:34,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:16:34,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15, 25] total 45 [2024-11-27 23:16:34,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234512455] [2024-11-27 23:16:34,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:34,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:16:34,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:16:34,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:16:34,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=1859, Unknown=0, NotChecked=0, Total=2162 [2024-11-27 23:16:34,894 INFO L87 Difference]: Start difference. First operand 408 states and 549 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:17:12,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:12,495 INFO L93 Difference]: Finished difference Result 454 states and 598 transitions. [2024-11-27 23:17:12,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:17:12,499 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-27 23:17:12,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:12,502 INFO L225 Difference]: With dead ends: 454 [2024-11-27 23:17:12,502 INFO L226 Difference]: Without dead ends: 452 [2024-11-27 23:17:12,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 897 ImplicationChecksByTransitivity, 51.8s TimeCoverageRelationStatistics Valid=399, Invalid=2571, Unknown=0, NotChecked=0, Total=2970 [2024-11-27 23:17:12,504 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 61 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:12,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1284 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 14.5s Time] [2024-11-27 23:17:12,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-27 23:17:12,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2024-11-27 23:17:12,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 387 states have (on average 1.2635658914728682) internal successors, (489), 390 states have internal predecessors, (489), 52 states have call successors, (52), 12 states have call predecessors, (52), 12 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-27 23:17:12,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 593 transitions. [2024-11-27 23:17:12,545 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 593 transitions. Word has length 145 [2024-11-27 23:17:12,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:12,545 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 593 transitions. [2024-11-27 23:17:12,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:17:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 593 transitions. [2024-11-27 23:17:12,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-27 23:17:12,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:12,547 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:12,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:17:12,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2024-11-27 23:17:12,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:17:12,948 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:12,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:12,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1778934955, now seen corresponding path program 1 times [2024-11-27 23:17:12,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:17:12,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006030761] [2024-11-27 23:17:12,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:12,949 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 [2024-11-27 23:17:12,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:17:12,951 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:17:12,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:17:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:38,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-27 23:17:38,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:17:38,703 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 15 treesize of output 1 [2024-11-27 23:17:39,146 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 68 treesize of output 32 [2024-11-27 23:17:39,336 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 68 treesize of output 32 [2024-11-27 23:17:44,013 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:17:44,013 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 199 treesize of output 106 [2024-11-27 23:17:46,677 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:17:46,678 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 199 treesize of output 97 [2024-11-27 23:17:57,806 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:17:57,806 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 336 treesize of output 132 [2024-11-27 23:17:59,387 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 236 proven. 36 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-27 23:17:59,387 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:18:27,202 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:18:27,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006030761] [2024-11-27 23:18:27,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006030761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:18:27,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1668186852] [2024-11-27 23:18:27,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:27,202 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:18:27,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:18:27,206 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:18:27,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-27 23:19:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:19,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-27 23:19:19,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:20,481 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 [2024-11-27 23:19:25,324 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 64 treesize of output 32 [2024-11-27 23:19:25,619 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 64 treesize of output 32 [2024-11-27 23:19:42,902 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:19:42,902 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 171 treesize of output 98 [2024-11-27 23:19:47,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:19:47,526 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 171 treesize of output 93 [2024-11-27 23:20:04,758 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:20:04,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 288 treesize of output 132 [2024-11-27 23:20:05,539 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 236 proven. 36 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-27 23:20:05,539 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:20:45,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1668186852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:20:45,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:20:45,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 41 [2024-11-27 23:20:45,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906173873] [2024-11-27 23:20:45,650 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:20:45,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-27 23:20:45,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:20:45,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-27 23:20:45,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=2334, Unknown=0, NotChecked=0, Total=2756 [2024-11-27 23:20:45,652 INFO L87 Difference]: Start difference. First operand 452 states and 593 transitions. Second operand has 42 states, 40 states have (on average 3.425) internal successors, (137), 39 states have internal predecessors, (137), 8 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 6 states have call predecessors, (34), 8 states have call successors, (34) [2024-11-27 23:21:10,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:21:40,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:40,754 INFO L93 Difference]: Finished difference Result 2313 states and 2981 transitions. [2024-11-27 23:21:40,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-27 23:21:40,755 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 40 states have (on average 3.425) internal successors, (137), 39 states have internal predecessors, (137), 8 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 6 states have call predecessors, (34), 8 states have call successors, (34) Word has length 145 [2024-11-27 23:21:40,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:40,762 INFO L225 Difference]: With dead ends: 2313 [2024-11-27 23:21:40,763 INFO L226 Difference]: Without dead ends: 1864 [2024-11-27 23:21:40,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 121.1s TimeCoverageRelationStatistics Valid=635, Invalid=3397, Unknown=0, NotChecked=0, Total=4032 [2024-11-27 23:21:40,765 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 850 mSDsluCounter, 3019 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 3167 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:40,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 3167 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 27.7s Time] [2024-11-27 23:21:40,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2024-11-27 23:21:40,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 821. [2024-11-27 23:21:40,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 688 states have (on average 1.242732558139535) internal successors, (855), 702 states have internal predecessors, (855), 104 states have call successors, (104), 28 states have call predecessors, (104), 28 states have return successors, (104), 90 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-27 23:21:40,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1063 transitions. [2024-11-27 23:21:40,890 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1063 transitions. Word has length 145 [2024-11-27 23:21:40,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:40,891 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1063 transitions. [2024-11-27 23:21:40,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 40 states have (on average 3.425) internal successors, (137), 39 states have internal predecessors, (137), 8 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 6 states have call predecessors, (34), 8 states have call successors, (34) [2024-11-27 23:21:40,891 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1063 transitions. [2024-11-27 23:21:40,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-27 23:21:40,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:40,893 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:40,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-27 23:21:41,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2024-11-27 23:21:41,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:21:41,294 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:21:41,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:41,295 INFO L85 PathProgramCache]: Analyzing trace with hash 569636700, now seen corresponding path program 1 times [2024-11-27 23:21:41,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:21:41,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048881673] [2024-11-27 23:21:41,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:41,295 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 [2024-11-27 23:21:41,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:21:41,297 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:21:41,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-27 23:21:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:41,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 23:21:41,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:41,861 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 [2024-11-27 23:21:42,328 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:21:42,329 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 21 [2024-11-27 23:21:42,338 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 [2024-11-27 23:21:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:21:42,415 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:21:42,415 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:21:42,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048881673] [2024-11-27 23:21:42,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048881673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:42,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:42,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 23:21:42,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467698824] [2024-11-27 23:21:42,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:42,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:21:42,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:21:42,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:21:42,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:21:42,417 INFO L87 Difference]: Start difference. First operand 821 states and 1063 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:21:44,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:44,130 INFO L93 Difference]: Finished difference Result 1933 states and 2489 transitions. [2024-11-27 23:21:44,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:21:44,131 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-27 23:21:44,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:44,136 INFO L225 Difference]: With dead ends: 1933 [2024-11-27 23:21:44,137 INFO L226 Difference]: Without dead ends: 1115 [2024-11-27 23:21:44,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:21:44,139 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 329 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:44,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 1135 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 23:21:44,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2024-11-27 23:21:44,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 835. [2024-11-27 23:21:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 702 states have (on average 1.2378917378917378) internal successors, (869), 716 states have internal predecessors, (869), 104 states have call successors, (104), 28 states have call predecessors, (104), 28 states have return successors, (104), 90 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-27 23:21:44,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1077 transitions. [2024-11-27 23:21:44,241 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1077 transitions. Word has length 145 [2024-11-27 23:21:44,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:44,242 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1077 transitions. [2024-11-27 23:21:44,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:21:44,242 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1077 transitions. [2024-11-27 23:21:44,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-27 23:21:44,244 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:44,244 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:44,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-27 23:21:44,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:21:44,445 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:21:44,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:44,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1393603643, now seen corresponding path program 1 times [2024-11-27 23:21:44,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:21:44,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847932976] [2024-11-27 23:21:44,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:44,446 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 [2024-11-27 23:21:44,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:21:44,448 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:21:44,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:21:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:44,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:21:44,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:45,581 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 78 proven. 45 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-27 23:21:45,581 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:21:45,824 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:21:45,825 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:21:45,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847932976] [2024-11-27 23:21:45,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847932976] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:45,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:21:45,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-27 23:21:45,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007497668] [2024-11-27 23:21:45,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:45,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:21:45,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:21:45,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:21:45,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:21:45,827 INFO L87 Difference]: Start difference. First operand 835 states and 1077 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:21:46,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:46,034 INFO L93 Difference]: Finished difference Result 1680 states and 2163 transitions. [2024-11-27 23:21:46,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:21:46,034 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-27 23:21:46,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:46,038 INFO L225 Difference]: With dead ends: 1680 [2024-11-27 23:21:46,038 INFO L226 Difference]: Without dead ends: 848 [2024-11-27 23:21:46,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:21:46,041 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 34 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:46,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 605 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:21:46,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-27 23:21:46,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 821. [2024-11-27 23:21:46,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 688 states have (on average 1.2340116279069768) internal successors, (849), 702 states have internal predecessors, (849), 104 states have call successors, (104), 28 states have call predecessors, (104), 28 states have return successors, (104), 90 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-27 23:21:46,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1057 transitions. [2024-11-27 23:21:46,139 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1057 transitions. Word has length 145 [2024-11-27 23:21:46,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:46,139 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1057 transitions. [2024-11-27 23:21:46,139 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:21:46,140 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1057 transitions. [2024-11-27 23:21:46,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-27 23:21:46,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:46,142 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:46,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-27 23:21:46,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:21:46,342 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:21:46,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:46,343 INFO L85 PathProgramCache]: Analyzing trace with hash 213380036, now seen corresponding path program 1 times [2024-11-27 23:21:46,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:21:46,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862536030] [2024-11-27 23:21:46,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:46,343 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 [2024-11-27 23:21:46,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:21:46,345 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:21:46,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:21:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:46,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:21:46,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:53,388 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:21:53,389 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 21 [2024-11-27 23:21:55,623 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:21:55,623 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:21:55,624 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:21:55,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862536030] [2024-11-27 23:21:55,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862536030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:55,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:55,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:21:55,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625423046] [2024-11-27 23:21:55,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:55,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:21:55,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:21:55,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:21:55,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:21:55,625 INFO L87 Difference]: Start difference. First operand 821 states and 1057 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:22:34,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:34,293 INFO L93 Difference]: Finished difference Result 2584 states and 3320 transitions. [2024-11-27 23:22:34,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:22:34,301 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-27 23:22:34,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:34,306 INFO L225 Difference]: With dead ends: 2584 [2024-11-27 23:22:34,306 INFO L226 Difference]: Without dead ends: 1766 [2024-11-27 23:22:34,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:22:34,309 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 380 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:34,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1087 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 32.3s Time] [2024-11-27 23:22:34,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-11-27 23:22:34,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1137. [2024-11-27 23:22:34,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 963 states have (on average 1.249221183800623) internal successors, (1203), 979 states have internal predecessors, (1203), 138 states have call successors, (138), 35 states have call predecessors, (138), 35 states have return successors, (138), 122 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-27 23:22:34,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1479 transitions. [2024-11-27 23:22:34,464 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1479 transitions. Word has length 145 [2024-11-27 23:22:34,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:34,465 INFO L471 AbstractCegarLoop]: Abstraction has 1137 states and 1479 transitions. [2024-11-27 23:22:34,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:22:34,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1479 transitions. [2024-11-27 23:22:34,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-27 23:22:34,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:34,469 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:34,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:22:34,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:22:34,670 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:34,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:34,671 INFO L85 PathProgramCache]: Analyzing trace with hash 374171863, now seen corresponding path program 1 times [2024-11-27 23:22:34,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:22:34,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780818692] [2024-11-27 23:22:34,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:34,672 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 [2024-11-27 23:22:34,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:22:34,674 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:22:34,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:22:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:35,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:22:35,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:35,357 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-27 23:22:35,357 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:22:35,357 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:22:35,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780818692] [2024-11-27 23:22:35,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780818692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:35,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:35,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:22:35,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527287889] [2024-11-27 23:22:35,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:35,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:22:35,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:22:35,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:22:35,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:22:35,359 INFO L87 Difference]: Start difference. First operand 1137 states and 1479 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-27 23:22:35,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:35,998 INFO L93 Difference]: Finished difference Result 2321 states and 3015 transitions. [2024-11-27 23:22:36,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:22:36,006 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), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 145 [2024-11-27 23:22:36,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:36,011 INFO L225 Difference]: With dead ends: 2321 [2024-11-27 23:22:36,011 INFO L226 Difference]: Without dead ends: 1137 [2024-11-27 23:22:36,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:22:36,015 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:36,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 660 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:22:36,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2024-11-27 23:22:36,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1107. [2024-11-27 23:22:36,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 943 states have (on average 1.2386002120890773) internal successors, (1168), 954 states have internal predecessors, (1168), 133 states have call successors, (133), 30 states have call predecessors, (133), 30 states have return successors, (133), 122 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-27 23:22:36,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1434 transitions. [2024-11-27 23:22:36,135 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1434 transitions. Word has length 145 [2024-11-27 23:22:36,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:36,136 INFO L471 AbstractCegarLoop]: Abstraction has 1107 states and 1434 transitions. [2024-11-27 23:22:36,136 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), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-27 23:22:36,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1434 transitions. [2024-11-27 23:22:36,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-27 23:22:36,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:36,138 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:36,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:22:36,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:22:36,339 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:36,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:36,340 INFO L85 PathProgramCache]: Analyzing trace with hash 384681619, now seen corresponding path program 1 times [2024-11-27 23:22:36,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:22:36,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159211135] [2024-11-27 23:22:36,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:36,340 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 [2024-11-27 23:22:36,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:22:36,342 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:22:36,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:22:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:36,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:22:36,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:37,254 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 94 treesize of output 40 [2024-11-27 23:22:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 240 proven. 16 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-27 23:22:37,435 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:37,976 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 22 [2024-11-27 23:22:38,036 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-27 23:22:38,036 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:22:38,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159211135] [2024-11-27 23:22:38,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159211135] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:22:38,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:22:38,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2024-11-27 23:22:38,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674493466] [2024-11-27 23:22:38,037 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:22:38,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:22:38,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:22:38,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:22:38,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:22:38,038 INFO L87 Difference]: Start difference. First operand 1107 states and 1434 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-27 23:22:40,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:40,558 INFO L93 Difference]: Finished difference Result 2306 states and 2955 transitions. [2024-11-27 23:22:40,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:22:40,559 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) Word has length 145 [2024-11-27 23:22:40,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:40,564 INFO L225 Difference]: With dead ends: 2306 [2024-11-27 23:22:40,564 INFO L226 Difference]: Without dead ends: 1112 [2024-11-27 23:22:40,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:22:40,568 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 131 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:40,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 661 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 23:22:40,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2024-11-27 23:22:40,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1082. [2024-11-27 23:22:40,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 923 states have (on average 1.2329360780065006) internal successors, (1138), 929 states have internal predecessors, (1138), 128 states have call successors, (128), 30 states have call predecessors, (128), 30 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-27 23:22:40,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1394 transitions. [2024-11-27 23:22:40,683 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1394 transitions. Word has length 145 [2024-11-27 23:22:40,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:40,683 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1394 transitions. [2024-11-27 23:22:40,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-27 23:22:40,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1394 transitions. [2024-11-27 23:22:40,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:22:40,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:40,686 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:40,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:22:40,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:22:40,887 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:40,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:40,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1205882509, now seen corresponding path program 1 times [2024-11-27 23:22:40,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:22:40,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947539459] [2024-11-27 23:22:40,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:40,888 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 [2024-11-27 23:22:40,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:22:40,892 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:22:40,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:22:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:41,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:22:41,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:41,705 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 79 treesize of output 43 [2024-11-27 23:22:41,885 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 168 proven. 8 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-27 23:22:41,885 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:42,427 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 25 [2024-11-27 23:22:42,463 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-27 23:22:42,463 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:22:42,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947539459] [2024-11-27 23:22:42,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947539459] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:22:42,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:22:42,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2024-11-27 23:22:42,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717638907] [2024-11-27 23:22:42,464 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:22:42,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:22:42,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:22:42,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:22:42,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:22:42,465 INFO L87 Difference]: Start difference. First operand 1082 states and 1394 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-27 23:22:45,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:45,424 INFO L93 Difference]: Finished difference Result 2236 states and 2870 transitions. [2024-11-27 23:22:45,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:22:45,425 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) Word has length 147 [2024-11-27 23:22:45,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:45,455 INFO L225 Difference]: With dead ends: 2236 [2024-11-27 23:22:45,455 INFO L226 Difference]: Without dead ends: 1102 [2024-11-27 23:22:45,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:22:45,457 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 139 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:45,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 845 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 23:22:45,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-11-27 23:22:45,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1072. [2024-11-27 23:22:45,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 913 states have (on average 1.2245345016429354) internal successors, (1118), 919 states have internal predecessors, (1118), 128 states have call successors, (128), 30 states have call predecessors, (128), 30 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-27 23:22:45,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1374 transitions. [2024-11-27 23:22:45,566 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1374 transitions. Word has length 147 [2024-11-27 23:22:45,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:45,567 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1374 transitions. [2024-11-27 23:22:45,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-27 23:22:45,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1374 transitions. [2024-11-27 23:22:45,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:22:45,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:45,570 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:45,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:22:45,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:22:45,771 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:45,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:45,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2139798920, now seen corresponding path program 1 times [2024-11-27 23:22:45,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:22:45,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267962064] [2024-11-27 23:22:45,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:45,772 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 [2024-11-27 23:22:45,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:22:45,776 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:22:45,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:22:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:46,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:22:46,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:46,295 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 15 [2024-11-27 23:22:46,576 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 8 treesize of output 4 [2024-11-27 23:22:46,897 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:22:46,897 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 23 [2024-11-27 23:22:46,906 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 14 [2024-11-27 23:22:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:22:46,991 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:22:46,991 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:22:46,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267962064] [2024-11-27 23:22:46,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267962064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:46,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:46,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:22:46,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137694505] [2024-11-27 23:22:46,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:46,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:22:46,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:22:46,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:22:46,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:22:46,994 INFO L87 Difference]: Start difference. First operand 1072 states and 1374 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:22:48,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:48,816 INFO L93 Difference]: Finished difference Result 2099 states and 2665 transitions. [2024-11-27 23:22:48,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:22:48,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 147 [2024-11-27 23:22:48,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:48,822 INFO L225 Difference]: With dead ends: 2099 [2024-11-27 23:22:48,822 INFO L226 Difference]: Without dead ends: 1333 [2024-11-27 23:22:48,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:22:48,824 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 279 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:48,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 775 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 23:22:48,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2024-11-27 23:22:48,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1117. [2024-11-27 23:22:48,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 958 states have (on average 1.2223382045929019) internal successors, (1171), 964 states have internal predecessors, (1171), 128 states have call successors, (128), 30 states have call predecessors, (128), 30 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-27 23:22:48,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1427 transitions. [2024-11-27 23:22:48,974 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1427 transitions. Word has length 147 [2024-11-27 23:22:48,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:48,974 INFO L471 AbstractCegarLoop]: Abstraction has 1117 states and 1427 transitions. [2024-11-27 23:22:48,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:22:48,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1427 transitions. [2024-11-27 23:22:48,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:22:48,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:48,977 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:48,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:22:49,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:22:49,177 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:49,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:49,178 INFO L85 PathProgramCache]: Analyzing trace with hash 208772735, now seen corresponding path program 1 times [2024-11-27 23:22:49,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:22:49,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887888803] [2024-11-27 23:22:49,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:49,178 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 [2024-11-27 23:22:49,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:22:49,180 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:22:49,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:22:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:50,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 23:22:50,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:50,285 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 [2024-11-27 23:22:52,742 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 78 treesize of output 32 [2024-11-27 23:22:52,768 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 129 treesize of output 65 [2024-11-27 23:22:53,374 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:22:53,375 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 219 treesize of output 75 [2024-11-27 23:22:53,663 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 244 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-27 23:22:53,663 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:54,446 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:22:54,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887888803] [2024-11-27 23:22:54,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887888803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:54,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1775389875] [2024-11-27 23:22:54,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:54,446 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:22:54,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:22:54,450 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:22:54,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-27 23:22:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:56,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-27 23:22:56,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:57,721 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 [2024-11-27 23:23:01,964 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 62 treesize of output 30 [2024-11-27 23:23:01,998 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 101 treesize of output 57 [2024-11-27 23:23:02,790 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:23:02,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 75 [2024-11-27 23:23:02,840 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 244 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-27 23:23:02,841 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:23:03,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1775389875] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:23:03,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:23:03,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2024-11-27 23:23:03,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861328707] [2024-11-27 23:23:03,302 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:23:03,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-27 23:23:03,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:23:03,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-27 23:23:03,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=804, Unknown=0, NotChecked=0, Total=930 [2024-11-27 23:23:03,304 INFO L87 Difference]: Start difference. First operand 1117 states and 1427 transitions. Second operand has 27 states, 25 states have (on average 5.52) internal successors, (138), 24 states have internal predecessors, (138), 6 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 23:23:12,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:12,348 INFO L93 Difference]: Finished difference Result 1227 states and 1546 transitions. [2024-11-27 23:23:12,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 23:23:12,349 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 5.52) internal successors, (138), 24 states have internal predecessors, (138), 6 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) Word has length 147 [2024-11-27 23:23:12,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:12,352 INFO L225 Difference]: With dead ends: 1227 [2024-11-27 23:23:12,353 INFO L226 Difference]: Without dead ends: 1225 [2024-11-27 23:23:12,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 323 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2024-11-27 23:23:12,354 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 530 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:12,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 1443 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-27 23:23:12,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2024-11-27 23:23:12,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1117. [2024-11-27 23:23:12,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 953 states have (on average 1.2182581322140609) internal successors, (1161), 959 states have internal predecessors, (1161), 128 states have call successors, (128), 35 states have call predecessors, (128), 35 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-27 23:23:12,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1417 transitions. [2024-11-27 23:23:12,472 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1417 transitions. Word has length 147 [2024-11-27 23:23:12,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:12,473 INFO L471 AbstractCegarLoop]: Abstraction has 1117 states and 1417 transitions. [2024-11-27 23:23:12,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 5.52) internal successors, (138), 24 states have internal predecessors, (138), 6 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 23:23:12,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1417 transitions. [2024-11-27 23:23:12,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:23:12,475 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:12,475 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:23:12,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2024-11-27 23:23:12,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:23:12,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:23:12,876 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:12,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:12,876 INFO L85 PathProgramCache]: Analyzing trace with hash 210619777, now seen corresponding path program 1 times [2024-11-27 23:23:12,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:23:12,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319953552] [2024-11-27 23:23:12,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:12,877 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 [2024-11-27 23:23:12,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:23:12,879 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:23:12,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:23:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:22,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-27 23:23:22,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:23:22,857 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 [2024-11-27 23:23:23,515 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 68 treesize of output 32 [2024-11-27 23:23:24,677 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:23:24,678 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 128 treesize of output 65 [2024-11-27 23:23:29,715 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:23:29,715 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 200 treesize of output 107 [2024-11-27 23:23:31,728 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:23:31,728 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 200 treesize of output 98 [2024-11-27 23:23:41,648 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:23:41,649 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 335 treesize of output 131 [2024-11-27 23:23:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-27 23:23:43,130 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:23:43,131 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:23:43,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319953552] [2024-11-27 23:23:43,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319953552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:23:43,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:23:43,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 23:23:43,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520093972] [2024-11-27 23:23:43,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:23:43,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:23:43,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:23:43,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:23:43,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:23:43,133 INFO L87 Difference]: Start difference. First operand 1117 states and 1417 transitions. Second operand has 16 states, 16 states have (on average 4.4375) internal successors, (71), 15 states have internal predecessors, (71), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-27 23:24:04,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:04,531 INFO L93 Difference]: Finished difference Result 3537 states and 4441 transitions. [2024-11-27 23:24:04,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-27 23:24:04,532 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.4375) internal successors, (71), 15 states have internal predecessors, (71), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 147 [2024-11-27 23:24:04,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:04,541 INFO L225 Difference]: With dead ends: 3537 [2024-11-27 23:24:04,541 INFO L226 Difference]: Without dead ends: 2423 [2024-11-27 23:24:04,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=167, Invalid=955, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 23:24:04,545 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 713 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:04,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 1722 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2024-11-27 23:24:04,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2024-11-27 23:24:04,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 1515. [2024-11-27 23:24:04,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1282 states have (on average 1.2246489859594383) internal successors, (1570), 1291 states have internal predecessors, (1570), 182 states have call successors, (182), 50 states have call predecessors, (182), 50 states have return successors, (182), 173 states have call predecessors, (182), 182 states have call successors, (182) [2024-11-27 23:24:04,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1934 transitions. [2024-11-27 23:24:04,752 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1934 transitions. Word has length 147 [2024-11-27 23:24:04,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:04,753 INFO L471 AbstractCegarLoop]: Abstraction has 1515 states and 1934 transitions. [2024-11-27 23:24:04,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.4375) internal successors, (71), 15 states have internal predecessors, (71), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-27 23:24:04,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1934 transitions. [2024-11-27 23:24:04,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:24:04,755 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:04,756 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:04,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-27 23:24:04,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:24:04,956 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:04,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:04,957 INFO L85 PathProgramCache]: Analyzing trace with hash 429474495, now seen corresponding path program 1 times [2024-11-27 23:24:04,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:24:04,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930575088] [2024-11-27 23:24:04,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:04,957 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 [2024-11-27 23:24:04,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:24:04,959 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:24:04,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:24:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:05,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 23:24:05,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:24:05,623 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 15 [2024-11-27 23:24:05,830 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 [2024-11-27 23:24:08,970 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:24:08,970 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 93 treesize of output 55 [2024-11-27 23:24:08,996 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:24:08,997 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 58 treesize of output 34 [2024-11-27 23:24:09,766 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:24:09,766 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:24:09,766 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:24:09,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930575088] [2024-11-27 23:24:09,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930575088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:09,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:09,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 23:24:09,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56390975] [2024-11-27 23:24:09,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:09,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:24:09,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:24:09,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:24:09,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:24:09,767 INFO L87 Difference]: Start difference. First operand 1515 states and 1934 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:24:20,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:20,570 INFO L93 Difference]: Finished difference Result 2920 states and 3660 transitions. [2024-11-27 23:24:20,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:24:20,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 147 [2024-11-27 23:24:20,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:20,576 INFO L225 Difference]: With dead ends: 2920 [2024-11-27 23:24:20,577 INFO L226 Difference]: Without dead ends: 1837 [2024-11-27 23:24:20,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:24:20,578 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 326 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:20,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1338 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-27 23:24:20,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2024-11-27 23:24:20,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1562. [2024-11-27 23:24:20,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1329 states have (on average 1.2227238525206923) internal successors, (1625), 1338 states have internal predecessors, (1625), 182 states have call successors, (182), 50 states have call predecessors, (182), 50 states have return successors, (182), 173 states have call predecessors, (182), 182 states have call successors, (182) [2024-11-27 23:24:20,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 1989 transitions. [2024-11-27 23:24:20,754 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 1989 transitions. Word has length 147 [2024-11-27 23:24:20,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:20,755 INFO L471 AbstractCegarLoop]: Abstraction has 1562 states and 1989 transitions. [2024-11-27 23:24:20,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:24:20,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 1989 transitions. [2024-11-27 23:24:20,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:24:20,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:20,758 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:20,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-27 23:24:20,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:24:20,959 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:20,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:20,959 INFO L85 PathProgramCache]: Analyzing trace with hash -307996308, now seen corresponding path program 1 times [2024-11-27 23:24:20,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:24:20,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872449952] [2024-11-27 23:24:20,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:20,960 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 [2024-11-27 23:24:20,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:24:20,962 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:24:20,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:24:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:21,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:24:21,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:24:21,573 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 [2024-11-27 23:24:21,987 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:24:21,987 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 39 treesize of output 23 [2024-11-27 23:24:21,995 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 14 [2024-11-27 23:24:22,066 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:24:22,066 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:24:22,066 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:24:22,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1872449952] [2024-11-27 23:24:22,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1872449952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:22,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:22,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:24:22,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631771075] [2024-11-27 23:24:22,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:22,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:24:22,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:24:22,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:24:22,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:24:22,068 INFO L87 Difference]: Start difference. First operand 1562 states and 1989 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:24:23,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:23,826 INFO L93 Difference]: Finished difference Result 2870 states and 3618 transitions. [2024-11-27 23:24:23,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:24:23,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 147 [2024-11-27 23:24:23,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:23,835 INFO L225 Difference]: With dead ends: 2870 [2024-11-27 23:24:23,836 INFO L226 Difference]: Without dead ends: 1744 [2024-11-27 23:24:23,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:24:23,838 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 186 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:23,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1003 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 23:24:23,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2024-11-27 23:24:24,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1587. [2024-11-27 23:24:24,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1354 states have (on average 1.2215657311669128) internal successors, (1654), 1363 states have internal predecessors, (1654), 182 states have call successors, (182), 50 states have call predecessors, (182), 50 states have return successors, (182), 173 states have call predecessors, (182), 182 states have call successors, (182) [2024-11-27 23:24:24,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2018 transitions. [2024-11-27 23:24:24,038 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2018 transitions. Word has length 147 [2024-11-27 23:24:24,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:24,039 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2018 transitions. [2024-11-27 23:24:24,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:24:24,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2018 transitions. [2024-11-27 23:24:24,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:24:24,041 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:24,041 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:24,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:24:24,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:24:24,242 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:24,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:24,243 INFO L85 PathProgramCache]: Analyzing trace with hash -2033690189, now seen corresponding path program 1 times [2024-11-27 23:24:24,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:24:24,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485766327] [2024-11-27 23:24:24,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:24,243 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 [2024-11-27 23:24:24,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:24:24,245 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:24:24,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:24:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:24,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:24:24,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:24:26,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:24:26,077 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 [2024-11-27 23:24:26,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:24:26,104 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 45 treesize of output 25 [2024-11-27 23:24:26,910 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:24:26,910 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:24:26,910 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:24:26,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485766327] [2024-11-27 23:24:26,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485766327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:26,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:26,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:24:26,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694025411] [2024-11-27 23:24:26,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:26,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:24:26,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:24:26,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:24:26,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:24:26,912 INFO L87 Difference]: Start difference. First operand 1587 states and 2018 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:24:36,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:24:37,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:37,630 INFO L93 Difference]: Finished difference Result 3755 states and 4705 transitions. [2024-11-27 23:24:37,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:24:37,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 147 [2024-11-27 23:24:37,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:37,652 INFO L225 Difference]: With dead ends: 3755 [2024-11-27 23:24:37,652 INFO L226 Difference]: Without dead ends: 2171 [2024-11-27 23:24:37,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:24:37,655 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 82 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:37,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 584 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2024-11-27 23:24:37,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2024-11-27 23:24:37,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 1673. [2024-11-27 23:24:37,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1440 states have (on average 1.2243055555555555) internal successors, (1763), 1449 states have internal predecessors, (1763), 182 states have call successors, (182), 50 states have call predecessors, (182), 50 states have return successors, (182), 173 states have call predecessors, (182), 182 states have call successors, (182) [2024-11-27 23:24:37,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2127 transitions. [2024-11-27 23:24:37,846 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2127 transitions. Word has length 147 [2024-11-27 23:24:37,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:37,847 INFO L471 AbstractCegarLoop]: Abstraction has 1673 states and 2127 transitions. [2024-11-27 23:24:37,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:24:37,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2127 transitions. [2024-11-27 23:24:37,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:24:37,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:37,850 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:37,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:24:38,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:24:38,051 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:38,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:38,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1785519713, now seen corresponding path program 1 times [2024-11-27 23:24:38,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:24:38,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739565005] [2024-11-27 23:24:38,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:38,052 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 [2024-11-27 23:24:38,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:24:38,053 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:24:38,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:24:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:38,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:24:38,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:24:39,766 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 [2024-11-27 23:24:39,853 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 78 proven. 45 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-27 23:24:39,853 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:24:40,414 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:24:40,414 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:24:40,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739565005] [2024-11-27 23:24:40,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739565005] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:24:40,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:24:40,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-27 23:24:40,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248800974] [2024-11-27 23:24:40,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:40,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:24:40,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:24:40,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:24:40,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:24:40,416 INFO L87 Difference]: Start difference. First operand 1673 states and 2127 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:24:40,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:40,795 INFO L93 Difference]: Finished difference Result 3346 states and 4256 transitions. [2024-11-27 23:24:40,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:24:40,796 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 147 [2024-11-27 23:24:40,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:40,802 INFO L225 Difference]: With dead ends: 3346 [2024-11-27 23:24:40,803 INFO L226 Difference]: Without dead ends: 1676 [2024-11-27 23:24:40,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:24:40,806 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 59 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:40,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 601 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:24:40,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2024-11-27 23:24:40,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1653. [2024-11-27 23:24:40,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1420 states have (on average 1.2183098591549295) internal successors, (1730), 1429 states have internal predecessors, (1730), 182 states have call successors, (182), 50 states have call predecessors, (182), 50 states have return successors, (182), 173 states have call predecessors, (182), 182 states have call successors, (182) [2024-11-27 23:24:40,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2094 transitions. [2024-11-27 23:24:40,992 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2094 transitions. Word has length 147 [2024-11-27 23:24:40,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:40,993 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2094 transitions. [2024-11-27 23:24:40,993 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:24:40,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2094 transitions. [2024-11-27 23:24:40,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:24:40,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:40,996 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:41,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-27 23:24:41,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:24:41,196 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:41,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:41,197 INFO L85 PathProgramCache]: Analyzing trace with hash 698666883, now seen corresponding path program 1 times [2024-11-27 23:24:41,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:24:41,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949841547] [2024-11-27 23:24:41,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:41,197 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 [2024-11-27 23:24:41,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:24:41,199 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:24:41,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-11-27 23:24:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:41,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:24:41,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:24:41,742 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-11-27 23:24:41,742 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:24:41,742 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:24:41,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949841547] [2024-11-27 23:24:41,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949841547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:41,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:41,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:24:41,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252164750] [2024-11-27 23:24:41,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:41,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:24:41,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:24:41,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:24:41,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:24:41,744 INFO L87 Difference]: Start difference. First operand 1653 states and 2094 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:24:41,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:41,990 INFO L93 Difference]: Finished difference Result 3313 states and 4200 transitions. [2024-11-27 23:24:41,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:24:41,997 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), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2024-11-27 23:24:41,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:42,009 INFO L225 Difference]: With dead ends: 3313 [2024-11-27 23:24:42,009 INFO L226 Difference]: Without dead ends: 1663 [2024-11-27 23:24:42,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:24:42,012 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 454 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 [2024-11-27 23:24:42,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 454 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:24:42,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2024-11-27 23:24:42,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1663. [2024-11-27 23:24:42,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1430 states have (on average 1.2132867132867133) internal successors, (1735), 1439 states have internal predecessors, (1735), 182 states have call successors, (182), 50 states have call predecessors, (182), 50 states have return successors, (182), 173 states have call predecessors, (182), 182 states have call successors, (182) [2024-11-27 23:24:42,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2099 transitions. [2024-11-27 23:24:42,232 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2099 transitions. Word has length 147 [2024-11-27 23:24:42,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:42,232 INFO L471 AbstractCegarLoop]: Abstraction has 1663 states and 2099 transitions. [2024-11-27 23:24:42,232 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), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:24:42,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2099 transitions. [2024-11-27 23:24:42,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:24:42,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:42,236 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:42,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-11-27 23:24:42,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:24:42,437 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:42,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:42,437 INFO L85 PathProgramCache]: Analyzing trace with hash 530722383, now seen corresponding path program 1 times [2024-11-27 23:24:42,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:24:42,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588321365] [2024-11-27 23:24:42,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:42,438 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 [2024-11-27 23:24:42,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:24:42,442 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:24:42,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:24:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:43,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:24:43,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:24:43,237 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 [2024-11-27 23:24:43,699 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 43 treesize of output 19 [2024-11-27 23:24:43,860 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 43 treesize of output 19 [2024-11-27 23:24:45,393 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 21 [2024-11-27 23:24:45,504 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 132 proven. 42 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-27 23:24:45,505 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:24:46,656 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-27 23:24:46,656 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:24:46,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588321365] [2024-11-27 23:24:46,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588321365] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:24:46,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:24:46,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-27 23:24:46,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162867834] [2024-11-27 23:24:46,657 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:24:46,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:24:46,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:24:46,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:24:46,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:24:46,659 INFO L87 Difference]: Start difference. First operand 1663 states and 2099 transitions. Second operand has 15 states, 13 states have (on average 9.153846153846153) internal successors, (119), 15 states have internal predecessors, (119), 6 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 23:24:51,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:51,931 INFO L93 Difference]: Finished difference Result 3807 states and 4760 transitions. [2024-11-27 23:24:51,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:24:51,932 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.153846153846153) internal successors, (119), 15 states have internal predecessors, (119), 6 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) Word has length 147 [2024-11-27 23:24:51,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:51,941 INFO L225 Difference]: With dead ends: 3807 [2024-11-27 23:24:51,941 INFO L226 Difference]: Without dead ends: 2147 [2024-11-27 23:24:51,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:24:51,949 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 284 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:51,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 1392 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-27 23:24:51,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2024-11-27 23:24:52,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 1683. [2024-11-27 23:24:52,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1445 states have (on average 1.2041522491349481) internal successors, (1740), 1454 states have internal predecessors, (1740), 182 states have call successors, (182), 55 states have call predecessors, (182), 55 states have return successors, (182), 173 states have call predecessors, (182), 182 states have call successors, (182) [2024-11-27 23:24:52,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2104 transitions. [2024-11-27 23:24:52,157 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2104 transitions. Word has length 147 [2024-11-27 23:24:52,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:52,158 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2104 transitions. [2024-11-27 23:24:52,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.153846153846153) internal successors, (119), 15 states have internal predecessors, (119), 6 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 23:24:52,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2104 transitions. [2024-11-27 23:24:52,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:24:52,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:52,162 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:52,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:24:52,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:24:52,363 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:52,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:52,363 INFO L85 PathProgramCache]: Analyzing trace with hash 953424209, now seen corresponding path program 1 times [2024-11-27 23:24:52,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:24:52,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734374695] [2024-11-27 23:24:52,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:52,364 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 [2024-11-27 23:24:52,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:24:52,366 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:24:52,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:24:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:53,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 23:24:53,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:24:53,140 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 [2024-11-27 23:24:53,606 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 43 treesize of output 19 [2024-11-27 23:24:53,772 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 43 treesize of output 19 [2024-11-27 23:24:55,373 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 43 treesize of output 19 [2024-11-27 23:24:55,406 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 43 treesize of output 19 [2024-11-27 23:24:55,571 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 21 [2024-11-27 23:24:55,690 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 132 proven. 42 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-27 23:24:55,690 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:24:56,953 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-27 23:24:56,953 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:24:56,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734374695] [2024-11-27 23:24:56,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734374695] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:24:56,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:24:56,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-27 23:24:56,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783862558] [2024-11-27 23:24:56,954 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:24:56,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:24:56,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:24:56,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:24:56,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:24:56,955 INFO L87 Difference]: Start difference. First operand 1683 states and 2104 transitions. Second operand has 15 states, 13 states have (on average 10.076923076923077) internal successors, (131), 15 states have internal predecessors, (131), 6 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 23:25:02,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:02,509 INFO L93 Difference]: Finished difference Result 3827 states and 4755 transitions. [2024-11-27 23:25:02,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:25:02,509 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 10.076923076923077) internal successors, (131), 15 states have internal predecessors, (131), 6 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) Word has length 147 [2024-11-27 23:25:02,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:02,518 INFO L225 Difference]: With dead ends: 3827 [2024-11-27 23:25:02,518 INFO L226 Difference]: Without dead ends: 2147 [2024-11-27 23:25:02,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:25:02,522 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 330 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:02,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 1477 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-27 23:25:02,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2024-11-27 23:25:02,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 1805. [2024-11-27 23:25:02,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1567 states have (on average 1.2093171665603064) internal successors, (1895), 1576 states have internal predecessors, (1895), 182 states have call successors, (182), 55 states have call predecessors, (182), 55 states have return successors, (182), 173 states have call predecessors, (182), 182 states have call successors, (182) [2024-11-27 23:25:02,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2259 transitions. [2024-11-27 23:25:02,704 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2259 transitions. Word has length 147 [2024-11-27 23:25:02,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:02,705 INFO L471 AbstractCegarLoop]: Abstraction has 1805 states and 2259 transitions. [2024-11-27 23:25:02,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 10.076923076923077) internal successors, (131), 15 states have internal predecessors, (131), 6 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 23:25:02,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2259 transitions. [2024-11-27 23:25:02,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 23:25:02,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:02,707 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:02,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:25:02,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:25:02,908 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:02,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:02,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1633482579, now seen corresponding path program 1 times [2024-11-27 23:25:02,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:25:02,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899515480] [2024-11-27 23:25:02,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:02,909 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 [2024-11-27 23:25:02,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:25:02,911 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:25:02,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:25:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:28,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-27 23:25:28,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:28,830 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 [2024-11-27 23:25:29,746 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 66 treesize of output 30 [2024-11-27 23:25:30,089 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 66 treesize of output 30 [2024-11-27 23:25:38,238 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:25:38,239 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 103 [2024-11-27 23:25:42,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:25:42,375 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 196 treesize of output 94 [2024-11-27 23:25:58,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:25:58,398 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 331 treesize of output 127 [2024-11-27 23:26:01,215 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 201 proven. 75 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-27 23:26:01,216 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:26:45,717 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:26:45,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899515480] [2024-11-27 23:26:45,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899515480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:45,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [178338462] [2024-11-27 23:26:45,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:45,718 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:26:45,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:26:45,720 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:26:45,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfabb89-b3e6-4e18-9fb7-cab65078d447/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2024-11-27 23:27:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:45,479 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-27 23:27:45,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:47,255 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 [2024-11-27 23:28:00,415 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 62 treesize of output 30 [2024-11-27 23:28:00,979 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 62 treesize of output 30 [2024-11-27 23:28:26,836 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:28:26,836 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 168 treesize of output 95 [2024-11-27 23:28:33,874 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:28:33,874 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 168 treesize of output 90 [2024-11-27 23:29:02,498 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:29:02,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 283 treesize of output 127 [2024-11-27 23:29:04,446 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 201 proven. 75 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-27 23:29:04,446 INFO L312 TraceCheckSpWp]: Computing backward predicates...