./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-ticket-3.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 80b1b132 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-ticket-3.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-?-80b1b13-m [2024-01-31 17:01:26,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 17:01:26,868 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 17:01:26,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 17:01:26,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 17:01:26,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 17:01:26,898 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 17:01:26,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 17:01:26,899 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 17:01:26,902 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 17:01:26,902 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 17:01:26,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 17:01:26,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 17:01:26,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 17:01:26,904 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 17:01:26,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 17:01:26,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 17:01:26,905 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 17:01:26,905 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 17:01:26,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 17:01:26,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 17:01:26,906 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 17:01:26,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 17:01:26,907 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 17:01:26,907 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 17:01:26,907 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 17:01:26,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 17:01:26,908 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 17:01:26,908 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 17:01:26,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 17:01:26,909 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 17:01:26,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 17:01:26,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 17:01:26,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 17:01:26,910 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 17:01:26,910 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 17:01:26,910 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 17:01:26,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 17:01:26,910 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 17:01:26,911 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 17:01:26,911 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 17:01:26,911 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 17:01:26,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 17:01:26,911 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 17:01:27,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 17:01:27,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 17:01:27,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 17:01:27,121 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 17:01:27,122 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 17:01:27,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2024-01-31 17:01:28,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 17:01:28,292 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 17:01:28,293 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2024-01-31 17:01:28,309 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b2764ea/c20480d5cf37490ebbe3239619b99cda/FLAGf3ad07ca8 [2024-01-31 17:01:28,325 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b2764ea/c20480d5cf37490ebbe3239619b99cda [2024-01-31 17:01:28,327 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 17:01:28,327 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 17:01:28,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-ticket-3.wvr.yml/witness.yml [2024-01-31 17:01:28,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 17:01:28,456 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 17:01:28,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 17:01:28,457 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 17:01:28,460 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 17:01:28,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 05:01:28" (1/2) ... [2024-01-31 17:01:28,461 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c095a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:01:28, skipping insertion in model container [2024-01-31 17:01:28,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 05:01:28" (1/2) ... [2024-01-31 17:01:28,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@c6ad1a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:01:28, skipping insertion in model container [2024-01-31 17:01:28,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:01:28" (2/2) ... [2024-01-31 17:01:28,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c095a8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28, skipping insertion in model container [2024-01-31 17:01:28,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:01:28" (2/2) ... [2024-01-31 17:01:28,465 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 17:01:28,497 INFO L93 nessWitnessExtractor]: Witness did not contain any usable entries. [2024-01-31 17:01:28,513 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 17:01:28,667 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c[3128,3141] [2024-01-31 17:01:28,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 17:01:28,678 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 17:01:28,694 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c[3128,3141] [2024-01-31 17:01:28,695 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 17:01:28,706 INFO L208 MainTranslator]: Completed translation [2024-01-31 17:01:28,707 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28 WrapperNode [2024-01-31 17:01:28,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 17:01:28,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 17:01:28,708 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 17:01:28,708 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 17:01:28,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28" (1/1) ... [2024-01-31 17:01:28,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28" (1/1) ... [2024-01-31 17:01:28,738 INFO L138 Inliner]: procedures = 22, calls = 55, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 167 [2024-01-31 17:01:28,738 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 17:01:28,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 17:01:28,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 17:01:28,739 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 17:01:28,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28" (1/1) ... [2024-01-31 17:01:28,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28" (1/1) ... [2024-01-31 17:01:28,748 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28" (1/1) ... [2024-01-31 17:01:28,759 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-31 17:01:28,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28" (1/1) ... [2024-01-31 17:01:28,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28" (1/1) ... [2024-01-31 17:01:28,765 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28" (1/1) ... [2024-01-31 17:01:28,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28" (1/1) ... [2024-01-31 17:01:28,767 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28" (1/1) ... [2024-01-31 17:01:28,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28" (1/1) ... [2024-01-31 17:01:28,770 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 17:01:28,770 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 17:01:28,770 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 17:01:28,771 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 17:01:28,771 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28" (1/1) ... [2024-01-31 17:01:28,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 17:01:28,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:01:28,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-31 17:01:28,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-31 17:01:28,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 17:01:28,822 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-31 17:01:28,822 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-31 17:01:28,822 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-31 17:01:28,822 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-31 17:01:28,822 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-31 17:01:28,822 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-31 17:01:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 17:01:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 17:01:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 17:01:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 17:01:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 17:01:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 17:01:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 17:01:28,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 17:01:28,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 17:01:28,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 17:01:28,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 17:01:28,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 17:01:28,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 17:01:28,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-31 17:01:28,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-31 17:01:28,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-31 17:01:28,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-31 17:01:28,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 17:01:28,826 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 17:01:28,919 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 17:01:28,921 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 17:01:29,118 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 17:01:29,118 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 17:01:29,292 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 17:01:29,292 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-31 17:01:29,292 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:01:29 BoogieIcfgContainer [2024-01-31 17:01:29,293 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 17:01:29,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 17:01:29,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 17:01:29,296 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 17:01:29,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 05:01:28" (1/4) ... [2024-01-31 17:01:29,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c84d599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 05:01:29, skipping insertion in model container [2024-01-31 17:01:29,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:01:28" (2/4) ... [2024-01-31 17:01:29,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c84d599 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 05:01:29, skipping insertion in model container [2024-01-31 17:01:29,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:28" (3/4) ... [2024-01-31 17:01:29,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c84d599 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 05:01:29, skipping insertion in model container [2024-01-31 17:01:29,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:01:29" (4/4) ... [2024-01-31 17:01:29,300 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-01-31 17:01:29,313 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 17:01:29,313 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-31 17:01:29,313 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 17:01:29,357 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-31 17:01:29,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 37 transitions, 95 flow [2024-01-31 17:01:29,433 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-01-31 17:01:29,434 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-31 17:01:29,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 34 events. 0/34 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-31 17:01:29,435 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 37 transitions, 95 flow [2024-01-31 17:01:29,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 33 transitions, 84 flow [2024-01-31 17:01:29,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 17:01:29,456 INFO L357 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, mHoare=false, 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;@2e82d3e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 17:01:29,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-01-31 17:01:29,476 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 17:01:29,476 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-01-31 17:01:29,476 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-31 17:01:29,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:01:29,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:01:29,478 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:01:29,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:01:29,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1357286859, now seen corresponding path program 1 times [2024-01-31 17:01:29,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:01:29,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048544491] [2024-01-31 17:01:29,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:01:29,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:01:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:01:30,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:01:30,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:01:30,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048544491] [2024-01-31 17:01:30,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048544491] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:01:30,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:01:30,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 17:01:30,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487527185] [2024-01-31 17:01:30,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:01:30,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 17:01:30,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:01:30,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 17:01:30,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-31 17:01:30,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-01-31 17:01:30,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2024-01-31 17:01:30,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:01:30,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-01-31 17:01:30,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:01:30,619 INFO L124 PetriNetUnfolderBase]: 1823/2829 cut-off events. [2024-01-31 17:01:30,619 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-01-31 17:01:30,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5854 conditions, 2829 events. 1823/2829 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 14000 event pairs, 710 based on Foata normal form. 1/2826 useless extension candidates. Maximal degree in co-relation 5128. Up to 1233 conditions per place. [2024-01-31 17:01:30,633 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 60 selfloop transitions, 7 changer transitions 10/81 dead transitions. [2024-01-31 17:01:30,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 81 transitions, 355 flow [2024-01-31 17:01:30,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 17:01:30,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 17:01:30,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 113 transitions. [2024-01-31 17:01:30,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6108108108108108 [2024-01-31 17:01:30,645 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 84 flow. Second operand 5 states and 113 transitions. [2024-01-31 17:01:30,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 81 transitions, 355 flow [2024-01-31 17:01:30,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 81 transitions, 329 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-31 17:01:30,652 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 110 flow [2024-01-31 17:01:30,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=110, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2024-01-31 17:01:30,656 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2024-01-31 17:01:30,656 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 110 flow [2024-01-31 17:01:30,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2024-01-31 17:01:30,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:01:30,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:01:30,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 17:01:30,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:01:30,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:01:30,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1490189187, now seen corresponding path program 2 times [2024-01-31 17:01:30,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:01:30,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996060759] [2024-01-31 17:01:30,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:01:30,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:01:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:01:30,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:01:30,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:01:30,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996060759] [2024-01-31 17:01:30,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996060759] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:01:30,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:01:30,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-31 17:01:30,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679630975] [2024-01-31 17:01:30,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:01:30,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 17:01:30,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:01:30,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 17:01:30,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-01-31 17:01:30,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-31 17:01:30,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2024-01-31 17:01:30,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:01:30,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-31 17:01:30,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:01:31,036 INFO L124 PetriNetUnfolderBase]: 934/1672 cut-off events. [2024-01-31 17:01:31,036 INFO L125 PetriNetUnfolderBase]: For 86/88 co-relation queries the response was YES. [2024-01-31 17:01:31,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3414 conditions, 1672 events. 934/1672 cut-off events. For 86/88 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 9242 event pairs, 216 based on Foata normal form. 8/1653 useless extension candidates. Maximal degree in co-relation 2548. Up to 624 conditions per place. [2024-01-31 17:01:31,044 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 58 selfloop transitions, 19 changer transitions 0/90 dead transitions. [2024-01-31 17:01:31,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 90 transitions, 379 flow [2024-01-31 17:01:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 17:01:31,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 17:01:31,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 144 transitions. [2024-01-31 17:01:31,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6486486486486487 [2024-01-31 17:01:31,050 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 110 flow. Second operand 6 states and 144 transitions. [2024-01-31 17:01:31,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 90 transitions, 379 flow [2024-01-31 17:01:31,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 90 transitions, 372 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-01-31 17:01:31,055 INFO L231 Difference]: Finished difference. Result has 48 places, 52 transitions, 180 flow [2024-01-31 17:01:31,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=180, PETRI_PLACES=48, PETRI_TRANSITIONS=52} [2024-01-31 17:01:31,059 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2024-01-31 17:01:31,060 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 52 transitions, 180 flow [2024-01-31 17:01:31,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2024-01-31 17:01:31,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:01:31,060 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:01:31,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 17:01:31,061 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:01:31,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:01:31,063 INFO L85 PathProgramCache]: Analyzing trace with hash 904220851, now seen corresponding path program 3 times [2024-01-31 17:01:31,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:01:31,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135292195] [2024-01-31 17:01:31,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:01:31,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:01:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:01:31,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:01:31,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:01:31,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135292195] [2024-01-31 17:01:31,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135292195] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:01:31,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:01:31,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-31 17:01:31,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895031692] [2024-01-31 17:01:31,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:01:31,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 17:01:31,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:01:31,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 17:01:31,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-31 17:01:31,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-01-31 17:01:31,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 52 transitions, 180 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-01-31 17:01:31,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:01:31,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-01-31 17:01:31,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:01:31,738 INFO L124 PetriNetUnfolderBase]: 2345/3751 cut-off events. [2024-01-31 17:01:31,738 INFO L125 PetriNetUnfolderBase]: For 1272/1272 co-relation queries the response was YES. [2024-01-31 17:01:31,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9401 conditions, 3751 events. 2345/3751 cut-off events. For 1272/1272 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 20152 event pairs, 779 based on Foata normal form. 2/3749 useless extension candidates. Maximal degree in co-relation 2367. Up to 1588 conditions per place. [2024-01-31 17:01:31,750 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 99 selfloop transitions, 9 changer transitions 23/135 dead transitions. [2024-01-31 17:01:31,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 135 transitions, 727 flow [2024-01-31 17:01:31,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 17:01:31,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 17:01:31,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 133 transitions. [2024-01-31 17:01:31,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5990990990990991 [2024-01-31 17:01:31,753 INFO L175 Difference]: Start difference. First operand has 48 places, 52 transitions, 180 flow. Second operand 6 states and 133 transitions. [2024-01-31 17:01:31,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 135 transitions, 727 flow [2024-01-31 17:01:31,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 135 transitions, 720 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 17:01:31,759 INFO L231 Difference]: Finished difference. Result has 55 places, 54 transitions, 224 flow [2024-01-31 17:01:31,759 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=55, PETRI_TRANSITIONS=54} [2024-01-31 17:01:31,760 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 12 predicate places. [2024-01-31 17:01:31,760 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 54 transitions, 224 flow [2024-01-31 17:01:31,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-01-31 17:01:31,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:01:31,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:01:31,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 17:01:31,761 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:01:31,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:01:31,763 INFO L85 PathProgramCache]: Analyzing trace with hash 24148193, now seen corresponding path program 4 times [2024-01-31 17:01:31,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:01:31,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893333445] [2024-01-31 17:01:31,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:01:31,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:01:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:01:31,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:01:31,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:01:31,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893333445] [2024-01-31 17:01:31,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893333445] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:01:31,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:01:31,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 17:01:31,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206057893] [2024-01-31 17:01:31,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:01:31,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 17:01:31,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:01:31,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 17:01:31,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-31 17:01:31,842 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-31 17:01:31,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 54 transitions, 224 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-01-31 17:01:31,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:01:31,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-31 17:01:31,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:01:32,072 INFO L124 PetriNetUnfolderBase]: 1074/1937 cut-off events. [2024-01-31 17:01:32,073 INFO L125 PetriNetUnfolderBase]: For 964/994 co-relation queries the response was YES. [2024-01-31 17:01:32,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4923 conditions, 1937 events. 1074/1937 cut-off events. For 964/994 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 10856 event pairs, 314 based on Foata normal form. 45/1959 useless extension candidates. Maximal degree in co-relation 3377. Up to 643 conditions per place. [2024-01-31 17:01:32,082 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 58 selfloop transitions, 21 changer transitions 4/98 dead transitions. [2024-01-31 17:01:32,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 98 transitions, 518 flow [2024-01-31 17:01:32,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 17:01:32,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 17:01:32,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2024-01-31 17:01:32,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6864864864864865 [2024-01-31 17:01:32,084 INFO L175 Difference]: Start difference. First operand has 55 places, 54 transitions, 224 flow. Second operand 5 states and 127 transitions. [2024-01-31 17:01:32,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 98 transitions, 518 flow [2024-01-31 17:01:32,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 98 transitions, 486 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-01-31 17:01:32,089 INFO L231 Difference]: Finished difference. Result has 55 places, 65 transitions, 315 flow [2024-01-31 17:01:32,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=315, PETRI_PLACES=55, PETRI_TRANSITIONS=65} [2024-01-31 17:01:32,090 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 12 predicate places. [2024-01-31 17:01:32,090 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 65 transitions, 315 flow [2024-01-31 17:01:32,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-01-31 17:01:32,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:01:32,090 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:01:32,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 17:01:32,091 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:01:32,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:01:32,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1410206501, now seen corresponding path program 5 times [2024-01-31 17:01:32,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:01:32,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004875379] [2024-01-31 17:01:32,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:01:32,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:01:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:01:32,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:01:32,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:01:32,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004875379] [2024-01-31 17:01:32,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004875379] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:01:32,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:01:32,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 17:01:32,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653942406] [2024-01-31 17:01:32,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:01:32,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 17:01:32,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:01:32,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 17:01:32,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-31 17:01:32,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-31 17:01:32,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 65 transitions, 315 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-01-31 17:01:32,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:01:32,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-31 17:01:32,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:01:32,355 INFO L124 PetriNetUnfolderBase]: 1020/1883 cut-off events. [2024-01-31 17:01:32,355 INFO L125 PetriNetUnfolderBase]: For 1841/1853 co-relation queries the response was YES. [2024-01-31 17:01:32,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5333 conditions, 1883 events. 1020/1883 cut-off events. For 1841/1853 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 10779 event pairs, 308 based on Foata normal form. 40/1902 useless extension candidates. Maximal degree in co-relation 2323. Up to 645 conditions per place. [2024-01-31 17:01:32,366 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 56 selfloop transitions, 22 changer transitions 5/98 dead transitions. [2024-01-31 17:01:32,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 98 transitions, 580 flow [2024-01-31 17:01:32,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 17:01:32,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 17:01:32,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 125 transitions. [2024-01-31 17:01:32,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6756756756756757 [2024-01-31 17:01:32,367 INFO L175 Difference]: Start difference. First operand has 55 places, 65 transitions, 315 flow. Second operand 5 states and 125 transitions. [2024-01-31 17:01:32,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 98 transitions, 580 flow [2024-01-31 17:01:32,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 98 transitions, 580 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-31 17:01:32,372 INFO L231 Difference]: Finished difference. Result has 60 places, 66 transitions, 374 flow [2024-01-31 17:01:32,372 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=374, PETRI_PLACES=60, PETRI_TRANSITIONS=66} [2024-01-31 17:01:32,372 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 17 predicate places. [2024-01-31 17:01:32,373 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 66 transitions, 374 flow [2024-01-31 17:01:32,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-01-31 17:01:32,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:01:32,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:01:32,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-31 17:01:32,374 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:01:32,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:01:32,374 INFO L85 PathProgramCache]: Analyzing trace with hash -592246379, now seen corresponding path program 6 times [2024-01-31 17:01:32,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:01:32,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361664187] [2024-01-31 17:01:32,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:01:32,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:01:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:01:32,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:01:32,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:01:32,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361664187] [2024-01-31 17:01:32,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361664187] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:01:32,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:01:32,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 17:01:32,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16244381] [2024-01-31 17:01:32,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:01:32,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 17:01:32,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:01:32,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 17:01:32,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-31 17:01:32,426 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-31 17:01:32,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 66 transitions, 374 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-01-31 17:01:32,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:01:32,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-31 17:01:32,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:01:32,542 INFO L124 PetriNetUnfolderBase]: 414/802 cut-off events. [2024-01-31 17:01:32,543 INFO L125 PetriNetUnfolderBase]: For 1041/1049 co-relation queries the response was YES. [2024-01-31 17:01:32,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2381 conditions, 802 events. 414/802 cut-off events. For 1041/1049 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3628 event pairs, 124 based on Foata normal form. 48/850 useless extension candidates. Maximal degree in co-relation 1584. Up to 247 conditions per place. [2024-01-31 17:01:32,547 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 46 selfloop transitions, 21 changer transitions 4/81 dead transitions. [2024-01-31 17:01:32,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 81 transitions, 535 flow [2024-01-31 17:01:32,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 17:01:32,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 17:01:32,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2024-01-31 17:01:32,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6324324324324324 [2024-01-31 17:01:32,548 INFO L175 Difference]: Start difference. First operand has 60 places, 66 transitions, 374 flow. Second operand 5 states and 117 transitions. [2024-01-31 17:01:32,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 81 transitions, 535 flow [2024-01-31 17:01:32,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 81 transitions, 490 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-01-31 17:01:32,551 INFO L231 Difference]: Finished difference. Result has 57 places, 56 transitions, 325 flow [2024-01-31 17:01:32,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=325, PETRI_PLACES=57, PETRI_TRANSITIONS=56} [2024-01-31 17:01:32,552 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2024-01-31 17:01:32,552 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 56 transitions, 325 flow [2024-01-31 17:01:32,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-01-31 17:01:32,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:01:32,552 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:01:32,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-31 17:01:32,553 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:01:32,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:01:32,553 INFO L85 PathProgramCache]: Analyzing trace with hash -336101195, now seen corresponding path program 7 times [2024-01-31 17:01:32,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:01:32,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103194759] [2024-01-31 17:01:32,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:01:32,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:01:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:01:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:01:32,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:01:32,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103194759] [2024-01-31 17:01:32,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103194759] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:01:32,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:01:32,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-31 17:01:32,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412305037] [2024-01-31 17:01:32,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:01:32,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 17:01:32,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:01:32,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 17:01:32,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-01-31 17:01:32,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-31 17:01:32,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 56 transitions, 325 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2024-01-31 17:01:32,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:01:32,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-31 17:01:32,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:01:32,731 INFO L124 PetriNetUnfolderBase]: 370/734 cut-off events. [2024-01-31 17:01:32,731 INFO L125 PetriNetUnfolderBase]: For 966/970 co-relation queries the response was YES. [2024-01-31 17:01:32,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2136 conditions, 734 events. 370/734 cut-off events. For 966/970 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3195 event pairs, 66 based on Foata normal form. 12/742 useless extension candidates. Maximal degree in co-relation 1180. Up to 230 conditions per place. [2024-01-31 17:01:32,735 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 51 selfloop transitions, 24 changer transitions 4/89 dead transitions. [2024-01-31 17:01:32,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 89 transitions, 571 flow [2024-01-31 17:01:32,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 17:01:32,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 17:01:32,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2024-01-31 17:01:32,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6171171171171171 [2024-01-31 17:01:32,736 INFO L175 Difference]: Start difference. First operand has 57 places, 56 transitions, 325 flow. Second operand 6 states and 137 transitions. [2024-01-31 17:01:32,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 89 transitions, 571 flow [2024-01-31 17:01:32,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 89 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 17:01:32,739 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 338 flow [2024-01-31 17:01:32,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2024-01-31 17:01:32,740 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 18 predicate places. [2024-01-31 17:01:32,740 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 338 flow [2024-01-31 17:01:32,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2024-01-31 17:01:32,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:01:32,740 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:01:32,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-31 17:01:32,741 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:01:32,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:01:32,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1185897815, now seen corresponding path program 8 times [2024-01-31 17:01:32,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:01:32,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628814570] [2024-01-31 17:01:32,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:01:32,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:01:32,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:01:32,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:01:32,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:01:32,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628814570] [2024-01-31 17:01:32,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628814570] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:01:32,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:01:32,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 17:01:32,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707226889] [2024-01-31 17:01:32,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:01:32,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 17:01:32,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:01:32,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 17:01:32,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-01-31 17:01:32,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-31 17:01:32,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 54 transitions, 338 flow. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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) [2024-01-31 17:01:32,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:01:32,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-31 17:01:32,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:01:32,954 INFO L124 PetriNetUnfolderBase]: 346/688 cut-off events. [2024-01-31 17:01:32,954 INFO L125 PetriNetUnfolderBase]: For 1225/1228 co-relation queries the response was YES. [2024-01-31 17:01:32,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2099 conditions, 688 events. 346/688 cut-off events. For 1225/1228 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2990 event pairs, 64 based on Foata normal form. 10/694 useless extension candidates. Maximal degree in co-relation 1120. Up to 196 conditions per place. [2024-01-31 17:01:32,957 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 49 selfloop transitions, 22 changer transitions 9/90 dead transitions. [2024-01-31 17:01:32,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 90 transitions, 596 flow [2024-01-31 17:01:32,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-31 17:01:32,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-31 17:01:32,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 163 transitions. [2024-01-31 17:01:32,959 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5506756756756757 [2024-01-31 17:01:32,959 INFO L175 Difference]: Start difference. First operand has 61 places, 54 transitions, 338 flow. Second operand 8 states and 163 transitions. [2024-01-31 17:01:32,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 90 transitions, 596 flow [2024-01-31 17:01:32,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 90 transitions, 550 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-01-31 17:01:32,962 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 321 flow [2024-01-31 17:01:32,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=321, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2024-01-31 17:01:32,962 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2024-01-31 17:01:32,962 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 321 flow [2024-01-31 17:01:32,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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) [2024-01-31 17:01:32,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:01:32,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:01:32,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-31 17:01:32,963 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:01:32,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:01:32,964 INFO L85 PathProgramCache]: Analyzing trace with hash -626688443, now seen corresponding path program 9 times [2024-01-31 17:01:32,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:01:32,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674975544] [2024-01-31 17:01:32,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:01:32,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:01:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:01:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:01:33,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:01:33,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674975544] [2024-01-31 17:01:33,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674975544] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:01:33,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:01:33,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 17:01:33,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870359772] [2024-01-31 17:01:33,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:01:33,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 17:01:33,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:01:33,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 17:01:33,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-01-31 17:01:33,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-31 17:01:33,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 321 flow. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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) [2024-01-31 17:01:33,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:01:33,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-31 17:01:33,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:01:33,180 INFO L124 PetriNetUnfolderBase]: 266/544 cut-off events. [2024-01-31 17:01:33,180 INFO L125 PetriNetUnfolderBase]: For 936/940 co-relation queries the response was YES. [2024-01-31 17:01:33,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1703 conditions, 544 events. 266/544 cut-off events. For 936/940 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2220 event pairs, 46 based on Foata normal form. 36/580 useless extension candidates. Maximal degree in co-relation 1052. Up to 134 conditions per place. [2024-01-31 17:01:33,183 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 41 selfloop transitions, 12 changer transitions 26/87 dead transitions. [2024-01-31 17:01:33,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 87 transitions, 570 flow [2024-01-31 17:01:33,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-31 17:01:33,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-31 17:01:33,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 164 transitions. [2024-01-31 17:01:33,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5540540540540541 [2024-01-31 17:01:33,184 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 321 flow. Second operand 8 states and 164 transitions. [2024-01-31 17:01:33,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 87 transitions, 570 flow [2024-01-31 17:01:33,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 87 transitions, 520 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-01-31 17:01:33,187 INFO L231 Difference]: Finished difference. Result has 64 places, 39 transitions, 205 flow [2024-01-31 17:01:33,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=205, PETRI_PLACES=64, PETRI_TRANSITIONS=39} [2024-01-31 17:01:33,187 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2024-01-31 17:01:33,188 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 39 transitions, 205 flow [2024-01-31 17:01:33,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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) [2024-01-31 17:01:33,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:01:33,188 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:01:33,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-31 17:01:33,188 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:01:33,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:01:33,189 INFO L85 PathProgramCache]: Analyzing trace with hash -562428533, now seen corresponding path program 10 times [2024-01-31 17:01:33,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:01:33,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702511206] [2024-01-31 17:01:33,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:01:33,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:01:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:01:33,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:01:33,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:01:33,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702511206] [2024-01-31 17:01:33,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702511206] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:01:33,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:01:33,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 17:01:33,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739107424] [2024-01-31 17:01:33,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:01:33,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 17:01:33,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:01:33,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 17:01:33,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-01-31 17:01:33,255 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-31 17:01:33,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 39 transitions, 205 flow. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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) [2024-01-31 17:01:33,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:01:33,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-31 17:01:33,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:01:33,319 INFO L124 PetriNetUnfolderBase]: 34/90 cut-off events. [2024-01-31 17:01:33,320 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-01-31 17:01:33,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 90 events. 34/90 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 238 event pairs, 4 based on Foata normal form. 16/106 useless extension candidates. Maximal degree in co-relation 326. Up to 20 conditions per place. [2024-01-31 17:01:33,320 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2024-01-31 17:01:33,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 32 transitions, 214 flow [2024-01-31 17:01:33,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-31 17:01:33,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-31 17:01:33,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 117 transitions. [2024-01-31 17:01:33,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3952702702702703 [2024-01-31 17:01:33,322 INFO L175 Difference]: Start difference. First operand has 64 places, 39 transitions, 205 flow. Second operand 8 states and 117 transitions. [2024-01-31 17:01:33,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 32 transitions, 214 flow [2024-01-31 17:01:33,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 32 transitions, 160 flow, removed 10 selfloop flow, removed 14 redundant places. [2024-01-31 17:01:33,323 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2024-01-31 17:01:33,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2024-01-31 17:01:33,323 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2024-01-31 17:01:33,323 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2024-01-31 17:01:33,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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) [2024-01-31 17:01:33,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-01-31 17:01:33,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-01-31 17:01:33,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-01-31 17:01:33,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-01-31 17:01:33,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-31 17:01:33,327 INFO L445 BasicCegarLoop]: Path program histogram: [10] [2024-01-31 17:01:33,329 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 17:01:33,329 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 17:01:33,332 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 05:01:33 BasicIcfg [2024-01-31 17:01:33,333 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 17:01:33,333 INFO L158 Benchmark]: Toolchain (without parser) took 4877.62ms. Allocated memory was 155.2MB in the beginning and 343.9MB in the end (delta: 188.7MB). Free memory was 79.8MB in the beginning and 224.6MB in the end (delta: -144.8MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2024-01-31 17:01:33,333 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory was 75.6MB in the beginning and 75.4MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 17:01:33,333 INFO L158 Benchmark]: Witness Parser took 0.43ms. Allocated memory is still 155.2MB. Free memory was 86.3MB in the beginning and 86.3MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 17:01:33,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.55ms. Allocated memory is still 155.2MB. Free memory was 79.5MB in the beginning and 125.4MB in the end (delta: -45.9MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2024-01-31 17:01:33,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.37ms. Allocated memory is still 155.2MB. Free memory was 125.4MB in the beginning and 123.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 17:01:33,334 INFO L158 Benchmark]: Boogie Preprocessor took 31.03ms. Allocated memory is still 155.2MB. Free memory was 123.3MB in the beginning and 121.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 17:01:33,334 INFO L158 Benchmark]: RCFGBuilder took 522.30ms. Allocated memory is still 155.2MB. Free memory was 121.2MB in the beginning and 73.0MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-01-31 17:01:33,335 INFO L158 Benchmark]: TraceAbstraction took 4038.66ms. Allocated memory was 155.2MB in the beginning and 343.9MB in the end (delta: 188.7MB). Free memory was 72.2MB in the beginning and 224.6MB in the end (delta: -152.4MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2024-01-31 17:01:33,336 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory was 75.6MB in the beginning and 75.4MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.43ms. Allocated memory is still 155.2MB. Free memory was 86.3MB in the beginning and 86.3MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.55ms. Allocated memory is still 155.2MB. Free memory was 79.5MB in the beginning and 125.4MB in the end (delta: -45.9MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.37ms. Allocated memory is still 155.2MB. Free memory was 125.4MB in the beginning and 123.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.03ms. Allocated memory is still 155.2MB. Free memory was 123.3MB in the beginning and 121.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 522.30ms. Allocated memory is still 155.2MB. Free memory was 121.2MB in the beginning and 73.0MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4038.66ms. Allocated memory was 155.2MB in the beginning and 343.9MB in the end (delta: 188.7MB). Free memory was 72.2MB in the beginning and 224.6MB in the end (delta: -152.4MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: 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 with 1 thread instances CFG has 7 procedures, 63 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 373 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 361 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1567 IncrementalHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 10 mSDtfsCounter, 1567 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=374occurred in iteration=5, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 330 NumberOfCodeBlocks, 330 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 320 ConstructedInterpolants, 0 QuantifiedInterpolants, 1346 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-31 17:01:33,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE