./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-5.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-5.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-5.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-ticket-5.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 17:01:35,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 17:01:35,419 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 17:01:35,422 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 17:01:35,423 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 17:01:35,436 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 17:01:35,437 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 17:01:35,437 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 17:01:35,438 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 17:01:35,438 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 17:01:35,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 17:01:35,439 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 17:01:35,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 17:01:35,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 17:01:35,440 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 17:01:35,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 17:01:35,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 17:01:35,441 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 17:01:35,441 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 17:01:35,441 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 17:01:35,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 17:01:35,442 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 17:01:35,442 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 17:01:35,442 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 17:01:35,443 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 17:01:35,443 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 17:01:35,443 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 17:01:35,443 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 17:01:35,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 17:01:35,444 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 17:01:35,444 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 17:01:35,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 17:01:35,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 17:01:35,445 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 17:01:35,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 17:01:35,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 17:01:35,445 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 17:01:35,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 17:01:35,446 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 17:01:35,446 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 17:01:35,446 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 17:01:35,446 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 17:01:35,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 17:01:35,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 17:01:35,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 17:01:35,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 17:01:35,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 17:01:35,623 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 17:01:35,624 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 17:01:35,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2024-01-31 17:01:36,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 17:01:37,052 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 17:01:37,053 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2024-01-31 17:01:37,063 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f262effc/42d144e7fd654674a55c2b91efb2bb4e/FLAGe806142db [2024-01-31 17:01:37,079 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f262effc/42d144e7fd654674a55c2b91efb2bb4e [2024-01-31 17:01:37,082 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 17:01:37,083 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 17:01:37,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-ticket-5.wvr.yml/witness.yml [2024-01-31 17:01:37,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 17:01:37,239 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 17:01:37,242 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 17:01:37,242 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 17:01:37,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 17:01:37,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 05:01:37" (1/2) ... [2024-01-31 17:01:37,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c0a774f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:01:37, skipping insertion in model container [2024-01-31 17:01:37,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 05:01:37" (1/2) ... [2024-01-31 17:01:37,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5527cfb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:01:37, skipping insertion in model container [2024-01-31 17:01:37,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:01:37" (2/2) ... [2024-01-31 17:01:37,251 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c0a774f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:37, skipping insertion in model container [2024-01-31 17:01:37,251 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:01:37" (2/2) ... [2024-01-31 17:01:37,251 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 17:01:37,296 INFO L93 nessWitnessExtractor]: Witness did not contain any usable entries. [2024-01-31 17:01:37,319 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 17:01:37,484 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-5.wvr.c[4028,4041] [2024-01-31 17:01:37,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 17:01:37,510 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 17:01:37,553 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-5.wvr.c[4028,4041] [2024-01-31 17:01:37,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 17:01:37,569 INFO L208 MainTranslator]: Completed translation [2024-01-31 17:01:37,570 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:01:37 WrapperNode [2024-01-31 17:01:37,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 17:01:37,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 17:01:37,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 17:01:37,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 17:01:37,577 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 05:01:37" (1/1) ... [2024-01-31 17:01:37,590 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 05:01:37" (1/1) ... [2024-01-31 17:01:37,611 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 251 [2024-01-31 17:01:37,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 17:01:37,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 17:01:37,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 17:01:37,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 17:01:37,628 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 05:01:37" (1/1) ... [2024-01-31 17:01:37,628 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 05:01:37" (1/1) ... [2024-01-31 17:01:37,631 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 05:01:37" (1/1) ... [2024-01-31 17:01:37,653 INFO L175 MemorySlicer]: Split 12 memory accesses to 6 slices as follows [2, 2, 2, 2, 2, 2]. 17 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 5 writes are split as follows [0, 1, 1, 1, 1, 1]. [2024-01-31 17:01:37,653 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 05:01:37" (1/1) ... [2024-01-31 17:01:37,668 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 05:01:37" (1/1) ... [2024-01-31 17:01:37,673 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 05:01:37" (1/1) ... [2024-01-31 17:01:37,681 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 05:01:37" (1/1) ... [2024-01-31 17:01:37,683 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 05:01:37" (1/1) ... [2024-01-31 17:01:37,684 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 05:01:37" (1/1) ... [2024-01-31 17:01:37,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 17:01:37,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 17:01:37,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 17:01:37,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 17:01:37,688 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 05:01:37" (1/1) ... [2024-01-31 17:01:37,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 17:01:37,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:01:37,732 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 17:01:37,737 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 17:01:37,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 17:01:37,760 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-31 17:01:37,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-31 17:01:37,760 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-31 17:01:37,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-31 17:01:37,760 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-31 17:01:37,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-31 17:01:37,760 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-31 17:01:37,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-31 17:01:37,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 17:01:37,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 17:01:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 17:01:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 17:01:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-31 17:01:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-31 17:01:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-01-31 17:01:37,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-01-31 17:01:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 17:01:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 17:01:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 17:01:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 17:01:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 17:01:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-31 17:01:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-31 17:01:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 17:01:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 17:01:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 17:01:37,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 17:01:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-31 17:01:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-31 17:01:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-31 17:01:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-31 17:01:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-31 17:01:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-31 17:01:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 17:01:37,763 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 17:01:37,853 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 17:01:37,855 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 17:01:38,176 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 17:01:38,177 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 17:01:38,375 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 17:01:38,375 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-31 17:01:38,376 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:01:38 BoogieIcfgContainer [2024-01-31 17:01:38,376 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 17:01:38,378 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 17:01:38,378 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 17:01:38,380 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 17:01:38,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 05:01:37" (1/4) ... [2024-01-31 17:01:38,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b29fe0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 05:01:38, skipping insertion in model container [2024-01-31 17:01:38,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:01:37" (2/4) ... [2024-01-31 17:01:38,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b29fe0e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 05:01:38, skipping insertion in model container [2024-01-31 17:01:38,382 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 05:01:37" (3/4) ... [2024-01-31 17:01:38,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b29fe0e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 05:01:38, skipping insertion in model container [2024-01-31 17:01:38,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:01:38" (4/4) ... [2024-01-31 17:01:38,384 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2024-01-31 17:01:38,397 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 17:01:38,398 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-31 17:01:38,398 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 17:01:38,447 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-01-31 17:01:38,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 59 transitions, 153 flow [2024-01-31 17:01:38,521 INFO L124 PetriNetUnfolderBase]: 0/54 cut-off events. [2024-01-31 17:01:38,521 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-01-31 17:01:38,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 54 events. 0/54 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-31 17:01:38,523 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 59 transitions, 153 flow [2024-01-31 17:01:38,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 53 transitions, 136 flow [2024-01-31 17:01:38,536 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 17:01:38,543 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;@1d164551, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 17:01:38,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-01-31 17:01:38,565 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 17:01:38,565 INFO L124 PetriNetUnfolderBase]: 0/52 cut-off events. [2024-01-31 17:01:38,565 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-01-31 17:01:38,565 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:01:38,566 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:01:38,566 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 3 more)] === [2024-01-31 17:01:38,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:01:38,570 INFO L85 PathProgramCache]: Analyzing trace with hash 772612808, now seen corresponding path program 1 times [2024-01-31 17:01:38,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:01:38,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436207450] [2024-01-31 17:01:38,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:01:38,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:01:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:01:39,721 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 17:01:39,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:01:39,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436207450] [2024-01-31 17:01:39,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436207450] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:01:39,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:01:39,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-31 17:01:39,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840701195] [2024-01-31 17:01:39,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:01:39,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 17:01:39,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:01:39,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 17:01:39,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-31 17:01:39,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 59 [2024-01-31 17:01:39,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 53 transitions, 136 flow. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 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 17:01:39,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:01:39,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 59 [2024-01-31 17:01:39,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:01:49,528 INFO L124 PetriNetUnfolderBase]: 137327/176709 cut-off events. [2024-01-31 17:01:49,529 INFO L125 PetriNetUnfolderBase]: For 8146/8146 co-relation queries the response was YES. [2024-01-31 17:01:49,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361752 conditions, 176709 events. 137327/176709 cut-off events. For 8146/8146 co-relation queries the response was YES. Maximal size of possible extension queue 4696. Compared 1069240 event pairs, 35738 based on Foata normal form. 1/176620 useless extension candidates. Maximal degree in co-relation 324160. Up to 70875 conditions per place. [2024-01-31 17:01:50,368 INFO L140 encePairwiseOnDemand]: 51/59 looper letters, 114 selfloop transitions, 11 changer transitions 39/170 dead transitions. [2024-01-31 17:01:50,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 170 transitions, 752 flow [2024-01-31 17:01:50,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 17:01:50,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 17:01:50,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 231 transitions. [2024-01-31 17:01:50,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.652542372881356 [2024-01-31 17:01:50,380 INFO L175 Difference]: Start difference. First operand has 69 places, 53 transitions, 136 flow. Second operand 6 states and 231 transitions. [2024-01-31 17:01:50,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 170 transitions, 752 flow [2024-01-31 17:01:51,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 170 transitions, 696 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-01-31 17:01:51,672 INFO L231 Difference]: Finished difference. Result has 67 places, 62 transitions, 187 flow [2024-01-31 17:01:51,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=187, PETRI_PLACES=67, PETRI_TRANSITIONS=62} [2024-01-31 17:01:51,676 INFO L281 CegarLoopForPetriNet]: 69 programPoint places, -2 predicate places. [2024-01-31 17:01:51,676 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 187 flow [2024-01-31 17:01:51,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 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 17:01:51,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:01:51,677 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:01:51,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 17:01:51,677 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 3 more)] === [2024-01-31 17:01:51,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:01:51,678 INFO L85 PathProgramCache]: Analyzing trace with hash -923941920, now seen corresponding path program 2 times [2024-01-31 17:01:51,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:01:51,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572739066] [2024-01-31 17:01:51,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:01:51,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:01:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:01:51,826 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 17:01:51,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:01:51,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572739066] [2024-01-31 17:01:51,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572739066] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:01:51,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:01:51,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-31 17:01:51,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373164561] [2024-01-31 17:01:51,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:01:51,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-31 17:01:51,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:01:51,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-31 17:01:51,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-01-31 17:01:51,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-01-31 17:01:51,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 187 flow. Second operand has 8 states, 8 states have (on average 22.125) internal successors, (177), 8 states have internal predecessors, (177), 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 17:01:51,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:01:51,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-01-31 17:01:51,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:01:57,588 INFO L124 PetriNetUnfolderBase]: 70989/100401 cut-off events. [2024-01-31 17:01:57,588 INFO L125 PetriNetUnfolderBase]: For 11835/18539 co-relation queries the response was YES. [2024-01-31 17:01:57,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215665 conditions, 100401 events. 70989/100401 cut-off events. For 11835/18539 co-relation queries the response was YES. Maximal size of possible extension queue 3841. Compared 732103 event pairs, 13064 based on Foata normal form. 32/94836 useless extension candidates. Maximal degree in co-relation 215651. Up to 28769 conditions per place. [2024-01-31 17:01:58,498 INFO L140 encePairwiseOnDemand]: 47/59 looper letters, 138 selfloop transitions, 51 changer transitions 1/211 dead transitions. [2024-01-31 17:01:58,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 211 transitions, 892 flow [2024-01-31 17:01:58,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-31 17:01:58,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-31 17:01:58,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 327 transitions. [2024-01-31 17:01:58,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6927966101694916 [2024-01-31 17:01:58,504 INFO L175 Difference]: Start difference. First operand has 67 places, 62 transitions, 187 flow. Second operand 8 states and 327 transitions. [2024-01-31 17:01:58,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 211 transitions, 892 flow [2024-01-31 17:01:58,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 211 transitions, 882 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-01-31 17:01:58,510 INFO L231 Difference]: Finished difference. Result has 72 places, 106 transitions, 384 flow [2024-01-31 17:01:58,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=384, PETRI_PLACES=72, PETRI_TRANSITIONS=106} [2024-01-31 17:01:58,511 INFO L281 CegarLoopForPetriNet]: 69 programPoint places, 3 predicate places. [2024-01-31 17:01:58,512 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 106 transitions, 384 flow [2024-01-31 17:01:58,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.125) internal successors, (177), 8 states have internal predecessors, (177), 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 17:01:58,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:01:58,512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:01:58,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 17:01:58,513 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 3 more)] === [2024-01-31 17:01:58,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:01:58,513 INFO L85 PathProgramCache]: Analyzing trace with hash 115972344, now seen corresponding path program 3 times [2024-01-31 17:01:58,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:01:58,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401334040] [2024-01-31 17:01:58,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:01:58,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:01:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:01:58,896 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 17:01:58,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:01:58,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401334040] [2024-01-31 17:01:58,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401334040] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:01:58,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:01:58,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-31 17:01:58,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020964780] [2024-01-31 17:01:58,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:01:58,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 17:01:58,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:01:58,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 17:01:58,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-31 17:01:58,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 59 [2024-01-31 17:01:58,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 106 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 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 17:01:58,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:01:58,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 59 [2024-01-31 17:01:58,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:02:12,234 INFO L124 PetriNetUnfolderBase]: 182723/237011 cut-off events. [2024-01-31 17:02:12,234 INFO L125 PetriNetUnfolderBase]: For 141631/141631 co-relation queries the response was YES. [2024-01-31 17:02:12,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634645 conditions, 237011 events. 182723/237011 cut-off events. For 141631/141631 co-relation queries the response was YES. Maximal size of possible extension queue 5900. Compared 1476572 event pairs, 50563 based on Foata normal form. 2/236859 useless extension candidates. Maximal degree in co-relation 179893. Up to 120319 conditions per place. [2024-01-31 17:02:13,101 INFO L140 encePairwiseOnDemand]: 51/59 looper letters, 259 selfloop transitions, 15 changer transitions 37/317 dead transitions. [2024-01-31 17:02:13,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 317 transitions, 1777 flow [2024-01-31 17:02:13,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 17:02:13,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 17:02:13,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 227 transitions. [2024-01-31 17:02:13,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6412429378531074 [2024-01-31 17:02:13,103 INFO L175 Difference]: Start difference. First operand has 72 places, 106 transitions, 384 flow. Second operand 6 states and 227 transitions. [2024-01-31 17:02:13,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 317 transitions, 1777 flow [2024-01-31 17:02:13,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 317 transitions, 1766 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 17:02:13,713 INFO L231 Difference]: Finished difference. Result has 79 places, 110 transitions, 468 flow [2024-01-31 17:02:13,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=468, PETRI_PLACES=79, PETRI_TRANSITIONS=110} [2024-01-31 17:02:13,714 INFO L281 CegarLoopForPetriNet]: 69 programPoint places, 10 predicate places. [2024-01-31 17:02:13,714 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 110 transitions, 468 flow [2024-01-31 17:02:13,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 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 17:02:13,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:02:13,715 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:02:13,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 17:02:13,715 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 3 more)] === [2024-01-31 17:02:13,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:02:13,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1965243272, now seen corresponding path program 4 times [2024-01-31 17:02:13,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:02:13,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564780439] [2024-01-31 17:02:13,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:02:13,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:02:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:02:13,855 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 17:02:13,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:02:13,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564780439] [2024-01-31 17:02:13,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564780439] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:02:13,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:02:13,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-31 17:02:13,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835738128] [2024-01-31 17:02:13,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:02:13,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-31 17:02:13,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:02:13,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-31 17:02:13,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-01-31 17:02:13,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-01-31 17:02:13,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 110 transitions, 468 flow. Second operand has 8 states, 8 states have (on average 22.125) internal successors, (177), 8 states have internal predecessors, (177), 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 17:02:13,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:02:13,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-01-31 17:02:13,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:02:19,991 INFO L124 PetriNetUnfolderBase]: 70720/99539 cut-off events. [2024-01-31 17:02:19,992 INFO L125 PetriNetUnfolderBase]: For 88281/107855 co-relation queries the response was YES. [2024-01-31 17:02:20,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278857 conditions, 99539 events. 70720/99539 cut-off events. For 88281/107855 co-relation queries the response was YES. Maximal size of possible extension queue 3773. Compared 718798 event pairs, 11873 based on Foata normal form. 672/95520 useless extension candidates. Maximal degree in co-relation 180453. Up to 28719 conditions per place.