./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-89.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_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-89.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1 --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 6c4f2ab200ae95c9ca275594b018c3497d9548a4085e649d22d856974a67d096 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:05:41,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:05:41,876 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 15:05:41,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:05:41,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:05:41,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:05:41,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:05:41,906 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:05:41,907 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:05:41,907 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:05:41,907 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:05:41,907 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:05:41,908 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:05:41,908 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:05:41,908 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:05:41,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:05:41,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:05:41,908 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:05:41,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:05:41,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:05:41,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:05:41,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:05:41,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:05:41,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:05:41,909 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:05:41,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:05:41,909 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:05:41,909 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:05:41,909 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:05:41,909 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:05:41,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:05:41,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:05:41,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:05:41,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:05:41,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:05:41,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:05:41,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:05:41,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:05:41,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:05:41,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:05:41,911 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:05:41,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:05:41,911 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:05:41,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:05:41,911 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:05:41,911 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:05:41,911 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:05:41,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:05:41,912 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_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1 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 -> 6c4f2ab200ae95c9ca275594b018c3497d9548a4085e649d22d856974a67d096 [2024-12-02 15:05:42,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:05:42,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:05:42,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:05:42,164 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:05:42,164 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:05:42,165 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-89.i [2024-12-02 15:05:45,527 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/data/5755f1449/ba794f62c5534182be52a0c9fe26f69a/FLAGc013a4c98 [2024-12-02 15:05:45,765 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:05:45,765 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-89.i [2024-12-02 15:05:45,774 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/data/5755f1449/ba794f62c5534182be52a0c9fe26f69a/FLAGc013a4c98 [2024-12-02 15:05:46,085 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/data/5755f1449/ba794f62c5534182be52a0c9fe26f69a [2024-12-02 15:05:46,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:05:46,089 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:05:46,090 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:05:46,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:05:46,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:05:46,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e60075f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46, skipping insertion in model container [2024-12-02 15:05:46,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,118 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:05:46,256 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_a96589b5-aab0-49b1-982c-2ec76204fccf/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-89.i[916,929] [2024-12-02 15:05:46,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:05:46,309 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:05:46,319 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_a96589b5-aab0-49b1-982c-2ec76204fccf/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-89.i[916,929] [2024-12-02 15:05:46,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:05:46,359 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:05:46,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46 WrapperNode [2024-12-02 15:05:46,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:05:46,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:05:46,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:05:46,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:05:46,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,375 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,406 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 140 [2024-12-02 15:05:46,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:05:46,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:05:46,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:05:46,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:05:46,416 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,419 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,435 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 15:05:46,435 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,436 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,442 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,455 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:05:46,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:05:46,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:05:46,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:05:46,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46" (1/1) ... [2024-12-02 15:05:46,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:05:46,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:05:46,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:05:46,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:05:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:05:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 15:05:46,514 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 15:05:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:05:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:05:46,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:05:46,585 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:05:46,587 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:05:46,913 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-12-02 15:05:46,913 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:05:46,924 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:05:46,924 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 15:05:46,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:05:46 BoogieIcfgContainer [2024-12-02 15:05:46,925 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:05:46,927 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:05:46,927 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:05:46,932 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:05:46,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:05:46" (1/3) ... [2024-12-02 15:05:46,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f9552a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:05:46, skipping insertion in model container [2024-12-02 15:05:46,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:46" (2/3) ... [2024-12-02 15:05:46,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f9552a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:05:46, skipping insertion in model container [2024-12-02 15:05:46,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:05:46" (3/3) ... [2024-12-02 15:05:46,935 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-89.i [2024-12-02 15:05:46,948 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:05:46,950 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-89.i that has 2 procedures, 63 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 15:05:47,004 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:05:47,017 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;@1194684b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:05:47,018 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:05:47,021 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 47 states have (on average 1.446808510638298) internal successors, (68), 48 states have internal predecessors, (68), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 15:05:47,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 15:05:47,029 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:05:47,030 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:05:47,030 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:05:47,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:05:47,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1313284559, now seen corresponding path program 1 times [2024-12-02 15:05:47,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:05:47,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078618881] [2024-12-02 15:05:47,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:05:47,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:05:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:05:47,266 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 15:05:47,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:05:47,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078618881] [2024-12-02 15:05:47,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078618881] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:05:47,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134781740] [2024-12-02 15:05:47,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:05:47,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:05:47,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:05:47,271 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:05:47,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:05:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:05:47,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 15:05:47,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:05:47,431 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 15:05:47,431 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:05:47,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134781740] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:05:47,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:05:47,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 15:05:47,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059019532] [2024-12-02 15:05:47,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:05:47,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 15:05:47,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:05:47,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 15:05:47,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:05:47,457 INFO L87 Difference]: Start difference. First operand has 63 states, 47 states have (on average 1.446808510638298) internal successors, (68), 48 states have internal predecessors, (68), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:05:47,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:05:47,478 INFO L93 Difference]: Finished difference Result 119 states and 195 transitions. [2024-12-02 15:05:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 15:05:47,480 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 87 [2024-12-02 15:05:47,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:05:47,487 INFO L225 Difference]: With dead ends: 119 [2024-12-02 15:05:47,487 INFO L226 Difference]: Without dead ends: 59 [2024-12-02 15:05:47,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:05:47,492 INFO L435 NwaCegarLoop]: 85 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, 85 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 [2024-12-02 15:05:47,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:05:47,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-12-02 15:05:47,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-12-02 15:05:47,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 44 states have internal predecessors, (59), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 15:05:47,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 85 transitions. [2024-12-02 15:05:47,529 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 85 transitions. Word has length 87 [2024-12-02 15:05:47,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:05:47,529 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 85 transitions. [2024-12-02 15:05:47,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:05:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 85 transitions. [2024-12-02 15:05:47,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 15:05:47,533 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:05:47,533 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:05:47,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:05:47,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 15:05:47,734 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:05:47,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:05:47,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1981552013, now seen corresponding path program 1 times [2024-12-02 15:05:47,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:05:47,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424385046] [2024-12-02 15:05:47,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:05:47,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:05:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:05:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 15:05:48,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:05:48,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424385046] [2024-12-02 15:05:48,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424385046] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:05:48,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:05:48,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:05:48,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005476387] [2024-12-02 15:05:48,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:05:48,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:05:48,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:05:48,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:05:48,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:05:48,327 INFO L87 Difference]: Start difference. First operand 59 states and 85 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:05:48,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:05:48,599 INFO L93 Difference]: Finished difference Result 172 states and 250 transitions. [2024-12-02 15:05:48,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:05:48,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2024-12-02 15:05:48,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:05:48,603 INFO L225 Difference]: With dead ends: 172 [2024-12-02 15:05:48,603 INFO L226 Difference]: Without dead ends: 116 [2024-12-02 15:05:48,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:05:48,605 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 62 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:05:48,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 282 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:05:48,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-12-02 15:05:48,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 85. [2024-12-02 15:05:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 56 states have internal predecessors, (71), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 15:05:48,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2024-12-02 15:05:48,631 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 123 transitions. Word has length 87 [2024-12-02 15:05:48,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:05:48,632 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-12-02 15:05:48,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:05:48,632 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 123 transitions. [2024-12-02 15:05:48,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 15:05:48,634 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:05:48,634 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:05:48,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:05:48,634 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:05:48,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:05:48,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1612350705, now seen corresponding path program 1 times [2024-12-02 15:05:48,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:05:48,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66850981] [2024-12-02 15:05:48,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:05:48,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:05:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:05:52,609 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 15:05:52,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:05:52,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66850981] [2024-12-02 15:05:52,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66850981] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:05:52,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:05:52,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:05:52,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407627906] [2024-12-02 15:05:52,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:05:52,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:05:52,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:05:52,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:05:52,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:05:52,612 INFO L87 Difference]: Start difference. First operand 85 states and 123 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:05:53,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:05:53,270 INFO L93 Difference]: Finished difference Result 170 states and 246 transitions. [2024-12-02 15:05:53,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:05:53,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2024-12-02 15:05:53,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:05:53,273 INFO L225 Difference]: With dead ends: 170 [2024-12-02 15:05:53,273 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 15:05:53,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:05:53,275 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 185 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:05:53,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 155 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 15:05:53,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 15:05:53,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 96. [2024-12-02 15:05:53,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 67 states have internal predecessors, (88), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 15:05:53,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 140 transitions. [2024-12-02 15:05:53,295 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 140 transitions. Word has length 87 [2024-12-02 15:05:53,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:05:53,296 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 140 transitions. [2024-12-02 15:05:53,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:05:53,296 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 140 transitions. [2024-12-02 15:05:53,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 15:05:53,297 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:05:53,298 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:05:53,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:05:53,298 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:05:53,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:05:53,299 INFO L85 PathProgramCache]: Analyzing trace with hash -932292335, now seen corresponding path program 1 times [2024-12-02 15:05:53,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:05:53,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386071445] [2024-12-02 15:05:53,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:05:53,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:05:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:05:55,538 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 15:05:55,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:05:55,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386071445] [2024-12-02 15:05:55,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386071445] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:05:55,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:05:55,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:05:55,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453507356] [2024-12-02 15:05:55,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:05:55,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:05:55,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:05:55,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:05:55,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:05:55,541 INFO L87 Difference]: Start difference. First operand 96 states and 140 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:05:56,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:05:56,073 INFO L93 Difference]: Finished difference Result 181 states and 262 transitions. [2024-12-02 15:05:56,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:05:56,074 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2024-12-02 15:05:56,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:05:56,075 INFO L225 Difference]: With dead ends: 181 [2024-12-02 15:05:56,075 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 15:05:56,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:05:56,077 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 123 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:05:56,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 173 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:05:56,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 15:05:56,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 85. [2024-12-02 15:05:56,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.25) internal successors, (70), 56 states have internal predecessors, (70), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 15:05:56,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 122 transitions. [2024-12-02 15:05:56,093 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 122 transitions. Word has length 87 [2024-12-02 15:05:56,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:05:56,093 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 122 transitions. [2024-12-02 15:05:56,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:05:56,094 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 122 transitions. [2024-12-02 15:05:56,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 15:05:56,095 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:05:56,096 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:05:56,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:05:56,096 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:05:56,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:05:56,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1191211448, now seen corresponding path program 1 times [2024-12-02 15:05:56,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:05:56,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720189692] [2024-12-02 15:05:56,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:05:56,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:05:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:05:57,013 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 15:05:57,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:05:57,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720189692] [2024-12-02 15:05:57,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720189692] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:05:57,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286531349] [2024-12-02 15:05:57,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:05:57,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:05:57,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:05:57,016 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:05:57,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 15:05:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:05:57,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 15:05:57,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:05:57,916 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 96 proven. 30 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-12-02 15:05:57,916 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:05:58,282 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 15:05:58,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286531349] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:05:58,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:05:58,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 11] total 25 [2024-12-02 15:05:58,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612057098] [2024-12-02 15:05:58,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:05:58,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:05:58,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:05:58,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:05:58,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2024-12-02 15:05:58,285 INFO L87 Difference]: Start difference. First operand 85 states and 122 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:05:58,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:05:58,574 INFO L93 Difference]: Finished difference Result 92 states and 129 transitions. [2024-12-02 15:05:58,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:05:58,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 89 [2024-12-02 15:05:58,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:05:58,576 INFO L225 Difference]: With dead ends: 92 [2024-12-02 15:05:58,576 INFO L226 Difference]: Without dead ends: 90 [2024-12-02 15:05:58,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 165 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2024-12-02 15:05:58,577 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 76 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:05:58,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 381 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:05:58,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-12-02 15:05:58,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2024-12-02 15:05:58,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 60 states have internal predecessors, (74), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 15:05:58,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 126 transitions. [2024-12-02 15:05:58,595 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 126 transitions. Word has length 89 [2024-12-02 15:05:58,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:05:58,596 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 126 transitions. [2024-12-02 15:05:58,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:05:58,596 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 126 transitions. [2024-12-02 15:05:58,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 15:05:58,597 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:05:58,597 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:05:58,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 15:05:58,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:05:58,798 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:05:58,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:05:58,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1611278920, now seen corresponding path program 1 times [2024-12-02 15:05:58,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:05:58,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043470940] [2024-12-02 15:05:58,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:05:58,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:05:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:05:58,938 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 15:05:58,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:05:58,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043470940] [2024-12-02 15:05:58,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043470940] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:05:58,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:05:58,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:05:58,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079096744] [2024-12-02 15:05:58,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:05:58,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:05:58,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:05:58,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:05:58,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:05:58,940 INFO L87 Difference]: Start difference. First operand 89 states and 126 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:05:59,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:05:59,038 INFO L93 Difference]: Finished difference Result 155 states and 218 transitions. [2024-12-02 15:05:59,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:05:59,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2024-12-02 15:05:59,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:05:59,040 INFO L225 Difference]: With dead ends: 155 [2024-12-02 15:05:59,040 INFO L226 Difference]: Without dead ends: 95 [2024-12-02 15:05:59,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:05:59,042 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 7 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:05:59,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 148 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:05:59,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-12-02 15:05:59,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 92. [2024-12-02 15:05:59,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 63 states have (on average 1.2222222222222223) internal successors, (77), 63 states have internal predecessors, (77), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 15:05:59,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 129 transitions. [2024-12-02 15:05:59,058 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 129 transitions. Word has length 91 [2024-12-02 15:05:59,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:05:59,059 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 129 transitions. [2024-12-02 15:05:59,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:05:59,059 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 129 transitions. [2024-12-02 15:05:59,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 15:05:59,061 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:05:59,061 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:05:59,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 15:05:59,061 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:05:59,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:05:59,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1697688837, now seen corresponding path program 1 times [2024-12-02 15:05:59,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:05:59,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056025461] [2024-12-02 15:05:59,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:05:59,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:05:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:06:00,051 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 15:06:00,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:06:00,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056025461] [2024-12-02 15:06:00,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056025461] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:06:00,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146007721] [2024-12-02 15:06:00,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:06:00,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:06:00,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:06:00,054 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:06:00,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 15:06:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:06:00,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 15:06:00,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:06:00,815 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 63 proven. 63 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-12-02 15:06:00,815 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:06:01,149 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 15:06:01,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146007721] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:06:01,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:06:01,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12, 12] total 28 [2024-12-02 15:06:01,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855851746] [2024-12-02 15:06:01,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:06:01,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:06:01,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:06:01,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:06:01,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2024-12-02 15:06:01,151 INFO L87 Difference]: Start difference. First operand 92 states and 129 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:01,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:06:01,442 INFO L93 Difference]: Finished difference Result 100 states and 137 transitions. [2024-12-02 15:06:01,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:06:01,442 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2024-12-02 15:06:01,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:06:01,443 INFO L225 Difference]: With dead ends: 100 [2024-12-02 15:06:01,443 INFO L226 Difference]: Without dead ends: 98 [2024-12-02 15:06:01,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2024-12-02 15:06:01,445 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 74 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:06:01,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 386 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:06:01,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-12-02 15:06:01,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 93. [2024-12-02 15:06:01,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 64 states have (on average 1.21875) internal successors, (78), 64 states have internal predecessors, (78), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 15:06:01,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 130 transitions. [2024-12-02 15:06:01,460 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 130 transitions. Word has length 92 [2024-12-02 15:06:01,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:06:01,460 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 130 transitions. [2024-12-02 15:06:01,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:01,460 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 130 transitions. [2024-12-02 15:06:01,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 15:06:01,462 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:06:01,462 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:06:01,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 15:06:01,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 15:06:01,662 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:06:01,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:06:01,663 INFO L85 PathProgramCache]: Analyzing trace with hash 336284300, now seen corresponding path program 1 times [2024-12-02 15:06:01,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:06:01,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265266452] [2024-12-02 15:06:01,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:06:01,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:06:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:06:01,734 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 15:06:01,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:06:01,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265266452] [2024-12-02 15:06:01,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265266452] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:06:01,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:06:01,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:06:01,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280135766] [2024-12-02 15:06:01,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:06:01,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:06:01,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:06:01,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:06:01,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:06:01,736 INFO L87 Difference]: Start difference. First operand 93 states and 130 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:01,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:06:01,786 INFO L93 Difference]: Finished difference Result 186 states and 255 transitions. [2024-12-02 15:06:01,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:06:01,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 94 [2024-12-02 15:06:01,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:06:01,788 INFO L225 Difference]: With dead ends: 186 [2024-12-02 15:06:01,788 INFO L226 Difference]: Without dead ends: 122 [2024-12-02 15:06:01,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:06:01,789 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 31 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:06:01,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 158 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:06:01,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-12-02 15:06:01,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2024-12-02 15:06:01,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 83 states have (on average 1.180722891566265) internal successors, (98), 84 states have internal predecessors, (98), 33 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 15:06:01,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 164 transitions. [2024-12-02 15:06:01,810 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 164 transitions. Word has length 94 [2024-12-02 15:06:01,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:06:01,810 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 164 transitions. [2024-12-02 15:06:01,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:01,811 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 164 transitions. [2024-12-02 15:06:01,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 15:06:01,812 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:06:01,812 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:06:01,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 15:06:01,812 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:06:01,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:06:01,813 INFO L85 PathProgramCache]: Analyzing trace with hash -264431386, now seen corresponding path program 1 times [2024-12-02 15:06:01,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:06:01,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251965061] [2024-12-02 15:06:01,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:06:01,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:06:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:06:01,890 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 15:06:01,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:06:01,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251965061] [2024-12-02 15:06:01,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251965061] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:06:01,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:06:01,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:06:01,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955928041] [2024-12-02 15:06:01,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:06:01,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:06:01,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:06:01,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:06:01,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:06:01,892 INFO L87 Difference]: Start difference. First operand 121 states and 164 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:02,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:06:02,086 INFO L93 Difference]: Finished difference Result 363 states and 492 transitions. [2024-12-02 15:06:02,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:06:02,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2024-12-02 15:06:02,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:06:02,091 INFO L225 Difference]: With dead ends: 363 [2024-12-02 15:06:02,091 INFO L226 Difference]: Without dead ends: 275 [2024-12-02 15:06:02,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:06:02,092 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 153 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:06:02,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 153 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:06:02,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-12-02 15:06:02,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 212. [2024-12-02 15:06:02,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 152 states have (on average 1.1710526315789473) internal successors, (178), 154 states have internal predecessors, (178), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 15:06:02,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 284 transitions. [2024-12-02 15:06:02,127 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 284 transitions. Word has length 95 [2024-12-02 15:06:02,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:06:02,127 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 284 transitions. [2024-12-02 15:06:02,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:02,127 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 284 transitions. [2024-12-02 15:06:02,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 15:06:02,128 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:06:02,129 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:06:02,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 15:06:02,129 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:06:02,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:06:02,129 INFO L85 PathProgramCache]: Analyzing trace with hash -867068570, now seen corresponding path program 1 times [2024-12-02 15:06:02,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:06:02,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892062396] [2024-12-02 15:06:02,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:06:02,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:06:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:06:03,794 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 15:06:03,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:06:03,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892062396] [2024-12-02 15:06:03,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892062396] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:06:03,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:06:03,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 15:06:03,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406934519] [2024-12-02 15:06:03,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:06:03,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 15:06:03,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:06:03,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 15:06:03,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-12-02 15:06:03,796 INFO L87 Difference]: Start difference. First operand 212 states and 284 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:05,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:06:05,439 INFO L93 Difference]: Finished difference Result 263 states and 336 transitions. [2024-12-02 15:06:05,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 15:06:05,439 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 105 [2024-12-02 15:06:05,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:06:05,441 INFO L225 Difference]: With dead ends: 263 [2024-12-02 15:06:05,441 INFO L226 Difference]: Without dead ends: 261 [2024-12-02 15:06:05,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=248, Invalid=942, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 15:06:05,441 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 145 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 15:06:05,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 596 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 15:06:05,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-12-02 15:06:05,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 224. [2024-12-02 15:06:05,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 164 states have (on average 1.170731707317073) internal successors, (192), 166 states have internal predecessors, (192), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 15:06:05,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 298 transitions. [2024-12-02 15:06:05,465 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 298 transitions. Word has length 105 [2024-12-02 15:06:05,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:06:05,465 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 298 transitions. [2024-12-02 15:06:05,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:05,465 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 298 transitions. [2024-12-02 15:06:05,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 15:06:05,466 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:06:05,466 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:06:05,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 15:06:05,466 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:06:05,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:06:05,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1127076136, now seen corresponding path program 1 times [2024-12-02 15:06:05,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:06:05,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833571923] [2024-12-02 15:06:05,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:06:05,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:06:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:06:05,534 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 15:06:05,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:06:05,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833571923] [2024-12-02 15:06:05,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833571923] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:06:05,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:06:05,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:06:05,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501236044] [2024-12-02 15:06:05,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:06:05,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:06:05,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:06:05,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:06:05,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:06:05,536 INFO L87 Difference]: Start difference. First operand 224 states and 298 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:05,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:06:05,642 INFO L93 Difference]: Finished difference Result 399 states and 533 transitions. [2024-12-02 15:06:05,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:06:05,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 105 [2024-12-02 15:06:05,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:06:05,644 INFO L225 Difference]: With dead ends: 399 [2024-12-02 15:06:05,644 INFO L226 Difference]: Without dead ends: 208 [2024-12-02 15:06:05,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:06:05,645 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 40 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:06:05,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 192 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:06:05,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-12-02 15:06:05,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-12-02 15:06:05,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 148 states have (on average 1.162162162162162) internal successors, (172), 150 states have internal predecessors, (172), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 15:06:05,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 278 transitions. [2024-12-02 15:06:05,667 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 278 transitions. Word has length 105 [2024-12-02 15:06:05,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:06:05,668 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 278 transitions. [2024-12-02 15:06:05,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:05,668 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 278 transitions. [2024-12-02 15:06:05,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 15:06:05,670 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:06:05,670 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:06:05,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 15:06:05,670 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:06:05,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:06:05,671 INFO L85 PathProgramCache]: Analyzing trace with hash 821982124, now seen corresponding path program 1 times [2024-12-02 15:06:05,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:06:05,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080874662] [2024-12-02 15:06:05,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:06:05,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:06:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:06:08,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1322 trivial. 0 not checked. [2024-12-02 15:06:08,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:06:08,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080874662] [2024-12-02 15:06:08,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080874662] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:06:08,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:06:08,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 15:06:08,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369667994] [2024-12-02 15:06:08,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:06:08,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 15:06:08,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:06:08,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 15:06:08,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:06:08,675 INFO L87 Difference]: Start difference. First operand 208 states and 278 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:10,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:06:10,055 INFO L93 Difference]: Finished difference Result 408 states and 542 transitions. [2024-12-02 15:06:10,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 15:06:10,055 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 181 [2024-12-02 15:06:10,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:06:10,057 INFO L225 Difference]: With dead ends: 408 [2024-12-02 15:06:10,057 INFO L226 Difference]: Without dead ends: 315 [2024-12-02 15:06:10,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-12-02 15:06:10,058 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 90 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:06:10,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 807 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 15:06:10,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-12-02 15:06:10,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 293. [2024-12-02 15:06:10,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 215 states have (on average 1.1813953488372093) internal successors, (254), 219 states have internal predecessors, (254), 69 states have call successors, (69), 8 states have call predecessors, (69), 8 states have return successors, (69), 65 states have call predecessors, (69), 69 states have call successors, (69) [2024-12-02 15:06:10,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 392 transitions. [2024-12-02 15:06:10,093 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 392 transitions. Word has length 181 [2024-12-02 15:06:10,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:06:10,093 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 392 transitions. [2024-12-02 15:06:10,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:10,094 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 392 transitions. [2024-12-02 15:06:10,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-12-02 15:06:10,096 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:06:10,096 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:06:10,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 15:06:10,097 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:06:10,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:06:10,097 INFO L85 PathProgramCache]: Analyzing trace with hash -181504122, now seen corresponding path program 1 times [2024-12-02 15:06:10,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:06:10,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874029776] [2024-12-02 15:06:10,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:06:10,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:06:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:06:10,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2024-12-02 15:06:10,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:06:10,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874029776] [2024-12-02 15:06:10,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874029776] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:06:10,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:06:10,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:06:10,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527800324] [2024-12-02 15:06:10,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:06:10,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:06:10,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:06:10,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:06:10,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:06:10,260 INFO L87 Difference]: Start difference. First operand 293 states and 392 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:06:10,455 INFO L93 Difference]: Finished difference Result 654 states and 877 transitions. [2024-12-02 15:06:10,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:06:10,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 187 [2024-12-02 15:06:10,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:06:10,460 INFO L225 Difference]: With dead ends: 654 [2024-12-02 15:06:10,460 INFO L226 Difference]: Without dead ends: 476 [2024-12-02 15:06:10,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:06:10,462 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 145 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:06:10,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 223 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:06:10,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-12-02 15:06:10,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 408. [2024-12-02 15:06:10,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 290 states have (on average 1.1275862068965516) internal successors, (327), 297 states have internal predecessors, (327), 105 states have call successors, (105), 12 states have call predecessors, (105), 12 states have return successors, (105), 98 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 15:06:10,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 537 transitions. [2024-12-02 15:06:10,521 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 537 transitions. Word has length 187 [2024-12-02 15:06:10,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:06:10,522 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 537 transitions. [2024-12-02 15:06:10,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:10,522 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 537 transitions. [2024-12-02 15:06:10,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 15:06:10,524 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:06:10,524 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:06:10,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 15:06:10,525 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:06:10,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:06:10,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1603055788, now seen corresponding path program 1 times [2024-12-02 15:06:10,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:06:10,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127182311] [2024-12-02 15:06:10,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:06:10,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:06:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:06:11,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2024-12-02 15:06:11,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:06:11,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127182311] [2024-12-02 15:06:11,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127182311] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:06:11,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:06:11,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 15:06:11,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441079843] [2024-12-02 15:06:11,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:06:11,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 15:06:11,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:06:11,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 15:06:11,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-12-02 15:06:11,650 INFO L87 Difference]: Start difference. First operand 408 states and 537 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:12,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:06:12,394 INFO L93 Difference]: Finished difference Result 535 states and 668 transitions. [2024-12-02 15:06:12,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 15:06:12,395 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 191 [2024-12-02 15:06:12,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:06:12,398 INFO L225 Difference]: With dead ends: 535 [2024-12-02 15:06:12,399 INFO L226 Difference]: Without dead ends: 533 [2024-12-02 15:06:12,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2024-12-02 15:06:12,400 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 165 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:06:12,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 597 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:06:12,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-12-02 15:06:12,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 432. [2024-12-02 15:06:12,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 314 states have (on average 1.1305732484076434) internal successors, (355), 321 states have internal predecessors, (355), 105 states have call successors, (105), 12 states have call predecessors, (105), 12 states have return successors, (105), 98 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 15:06:12,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 565 transitions. [2024-12-02 15:06:12,476 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 565 transitions. Word has length 191 [2024-12-02 15:06:12,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:06:12,477 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 565 transitions. [2024-12-02 15:06:12,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:12,477 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 565 transitions. [2024-12-02 15:06:12,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 15:06:12,479 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:06:12,479 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:06:12,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 15:06:12,480 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:06:12,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:06:12,480 INFO L85 PathProgramCache]: Analyzing trace with hash -697766802, now seen corresponding path program 1 times [2024-12-02 15:06:12,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:06:12,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257939984] [2024-12-02 15:06:12,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:06:12,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:06:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:06:12,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2024-12-02 15:06:12,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:06:12,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257939984] [2024-12-02 15:06:12,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257939984] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:06:12,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:06:12,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:06:12,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58638931] [2024-12-02 15:06:12,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:06:12,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:06:12,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:06:12,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:06:12,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:06:12,668 INFO L87 Difference]: Start difference. First operand 432 states and 565 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:12,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:06:12,893 INFO L93 Difference]: Finished difference Result 796 states and 1043 transitions. [2024-12-02 15:06:12,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:06:12,894 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 191 [2024-12-02 15:06:12,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:06:12,897 INFO L225 Difference]: With dead ends: 796 [2024-12-02 15:06:12,897 INFO L226 Difference]: Without dead ends: 479 [2024-12-02 15:06:12,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:06:12,898 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 137 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:06:12,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 357 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:06:12,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-12-02 15:06:12,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 329. [2024-12-02 15:06:12,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 233 states have (on average 1.1158798283261802) internal successors, (260), 239 states have internal predecessors, (260), 85 states have call successors, (85), 10 states have call predecessors, (85), 10 states have return successors, (85), 79 states have call predecessors, (85), 85 states have call successors, (85) [2024-12-02 15:06:12,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 430 transitions. [2024-12-02 15:06:12,937 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 430 transitions. Word has length 191 [2024-12-02 15:06:12,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:06:12,937 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 430 transitions. [2024-12-02 15:06:12,938 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:12,938 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 430 transitions. [2024-12-02 15:06:12,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-12-02 15:06:12,940 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:06:12,940 INFO L218 NwaCegarLoop]: trace histogram [39, 39, 39, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:06:12,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 15:06:12,940 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:06:12,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:06:12,941 INFO L85 PathProgramCache]: Analyzing trace with hash 115108212, now seen corresponding path program 2 times [2024-12-02 15:06:12,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:06:12,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579135474] [2024-12-02 15:06:12,941 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:06:12,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:06:12,961 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 15:06:12,961 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:06:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3064 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3044 trivial. 0 not checked. [2024-12-02 15:06:13,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:06:13,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579135474] [2024-12-02 15:06:13,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579135474] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:06:13,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:06:13,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 15:06:13,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429460133] [2024-12-02 15:06:13,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:06:13,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:06:13,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:06:13,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:06:13,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:06:13,935 INFO L87 Difference]: Start difference. First operand 329 states and 430 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:14,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:06:14,596 INFO L93 Difference]: Finished difference Result 373 states and 473 transitions. [2024-12-02 15:06:14,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 15:06:14,596 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 267 [2024-12-02 15:06:14,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:06:14,599 INFO L225 Difference]: With dead ends: 373 [2024-12-02 15:06:14,599 INFO L226 Difference]: Without dead ends: 371 [2024-12-02 15:06:14,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-12-02 15:06:14,600 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 94 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:06:14,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 506 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:06:14,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-12-02 15:06:14,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 325. [2024-12-02 15:06:14,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 229 states have (on average 1.1135371179039302) internal successors, (255), 235 states have internal predecessors, (255), 85 states have call successors, (85), 10 states have call predecessors, (85), 10 states have return successors, (85), 79 states have call predecessors, (85), 85 states have call successors, (85) [2024-12-02 15:06:14,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 425 transitions. [2024-12-02 15:06:14,649 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 425 transitions. Word has length 267 [2024-12-02 15:06:14,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:06:14,650 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 425 transitions. [2024-12-02 15:06:14,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:14,650 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 425 transitions. [2024-12-02 15:06:14,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-12-02 15:06:14,652 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:06:14,652 INFO L218 NwaCegarLoop]: trace histogram [39, 39, 39, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:06:14,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 15:06:14,652 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:06:14,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:06:14,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1042737457, now seen corresponding path program 1 times [2024-12-02 15:06:14,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:06:14,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192045565] [2024-12-02 15:06:14,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:06:14,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:06:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:06:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3064 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3050 trivial. 0 not checked. [2024-12-02 15:06:14,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:06:14,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192045565] [2024-12-02 15:06:14,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192045565] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:06:14,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:06:14,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:06:14,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188639847] [2024-12-02 15:06:14,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:06:14,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:06:14,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:06:14,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:06:14,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:06:14,749 INFO L87 Difference]: Start difference. First operand 325 states and 425 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:14,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:06:14,870 INFO L93 Difference]: Finished difference Result 713 states and 940 transitions. [2024-12-02 15:06:14,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:06:14,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 272 [2024-12-02 15:06:14,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:06:14,872 INFO L225 Difference]: With dead ends: 713 [2024-12-02 15:06:14,872 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 15:06:14,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:06:14,874 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 55 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:06:14,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 189 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:06:14,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 15:06:14,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 15:06:14,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:06:14,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 15:06:14,875 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 272 [2024-12-02 15:06:14,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:06:14,876 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 15:06:14,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:06:14,876 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 15:06:14,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 15:06:14,878 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 15:06:14,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 15:06:14,881 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:06:14,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 15:06:37,099 WARN L286 SmtUtils]: Spent 21.95s on a formula simplification. DAG size of input: 268 DAG size of output: 308 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 15:06:41,971 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 15:06:41,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:06:41 BoogieIcfgContainer [2024-12-02 15:06:41,982 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 15:06:41,983 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 15:06:41,983 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 15:06:41,983 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 15:06:41,984 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:05:46" (3/4) ... [2024-12-02 15:06:41,985 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 15:06:41,990 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 15:06:41,993 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-02 15:06:41,993 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 15:06:41,994 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 15:06:41,994 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 15:06:42,070 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 15:06:42,070 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 15:06:42,071 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 15:06:42,071 INFO L158 Benchmark]: Toolchain (without parser) took 55982.22ms. Allocated memory was 142.6MB in the beginning and 629.1MB in the end (delta: 486.5MB). Free memory was 115.9MB in the beginning and 431.5MB in the end (delta: -315.6MB). Peak memory consumption was 166.7MB. Max. memory is 16.1GB. [2024-12-02 15:06:42,072 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:06:42,072 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.55ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 103.0MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:06:42,072 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.96ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 100.4MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:06:42,072 INFO L158 Benchmark]: Boogie Preprocessor took 47.81ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 97.8MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:06:42,072 INFO L158 Benchmark]: RCFGBuilder took 469.57ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 78.5MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:06:42,073 INFO L158 Benchmark]: TraceAbstraction took 55055.32ms. Allocated memory was 142.6MB in the beginning and 629.1MB in the end (delta: 486.5MB). Free memory was 77.8MB in the beginning and 435.6MB in the end (delta: -357.7MB). Peak memory consumption was 336.6MB. Max. memory is 16.1GB. [2024-12-02 15:06:42,073 INFO L158 Benchmark]: Witness Printer took 87.65ms. Allocated memory is still 629.1MB. Free memory was 435.6MB in the beginning and 431.5MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:06:42,074 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.55ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 103.0MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.96ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 100.4MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.81ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 97.8MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 469.57ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 78.5MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 55055.32ms. Allocated memory was 142.6MB in the beginning and 629.1MB in the end (delta: 486.5MB). Free memory was 77.8MB in the beginning and 435.6MB in the end (delta: -357.7MB). Peak memory consumption was 336.6MB. Max. memory is 16.1GB. * Witness Printer took 87.65ms. Allocated memory is still 629.1MB. Free memory was 435.6MB in the beginning and 431.5MB in the end (delta: 4.1MB). 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.9s, OverallIterations: 17, TraceHistogramMax: 39, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1582 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1582 mSDsluCounter, 5388 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3748 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3766 IncrementalHoareTripleChecker+Invalid, 3888 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 1640 mSDtfsCounter, 3766 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 648 GetRequests, 473 SyntacticMatches, 3 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=432occurred in iteration=14, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 575 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 17.9s InterpolantComputationTime, 2576 NumberOfCodeBlocks, 2339 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2735 ConstructedInterpolants, 0 QuantifiedInterpolants, 12027 SizeOfPredicates, 12 NumberOfNonLiveVariables, 647 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 22 InterpolantComputations, 17 PerfectInterpolantSequences, 16263/16452 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: ((((((((var_1_8 != ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256))) || ((((3 + var_1_10) < var_1_9) || (var_1_8 == ((252 + var_1_9) % 256))) && (((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256)) <= 127))) && ((var_1_8 == ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256))) || ((((((3 + var_1_10) < var_1_9) || ((256 + var_1_8) == ((252 + var_1_9) % 256))) && (128 <= ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256)))) || ((256 + var_1_8) != ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256)))) && (((((var_1_9 <= (3 + var_1_10)) && ((256 + var_1_8) == ((252 + var_1_9) % 256))) || (((252 + var_1_9) % 256) < 128)) && ((127 < ((252 + var_1_9) % 256)) || ((var_1_8 == ((252 + var_1_9) % 256)) && (var_1_9 <= (3 + var_1_10))))) || ((256 + var_1_8) == ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256))))))) || (last_1_var_1_14 < (last_1_var_1_15 + 1))) && (var_1_13 == var_1_10)) && (var_1_8 == var_1_14)) && (var_1_15 == var_1_3)) || (((((((((((9 + last_1_var_1_14) <= last_1_var_1_15) && (0 <= 0)) && ((var_1_8 + 1) <= 0)) && (((var_1_14 / var_1_3) + 1) <= var_1_14)) && ((9 + var_1_14) <= var_1_15)) && ((var_1_7 == 0) || (var_1_5 == 0))) && (16 <= var_1_14)) && (var_1_15 <= 25)) && (var_1_1 == 0)) && (0 <= (((var_1_8 >= 0) ? (var_1_8 / 65536) : ((var_1_8 / 65536) - 1)) + 1)))) RESULT: Ultimate proved your program to be correct! [2024-12-02 15:06:42,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96589b5-aab0-49b1-982c-2ec76204fccf/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE