./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/lazy01.i --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/lazy01.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f 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/pthread/lazy01.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/lazy01.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-dev-a340643-m [2024-01-27 14:53:31,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:53:31,306 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:53:31,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:53:31,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:53:31,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:53:31,337 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:53:31,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:53:31,338 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:53:31,342 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:53:31,342 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:53:31,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:53:31,343 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:53:31,344 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:53:31,344 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:53:31,345 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:53:31,345 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:53:31,345 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:53:31,345 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:53:31,346 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:53:31,346 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:53:31,346 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:53:31,346 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:53:31,347 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:53:31,347 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:53:31,347 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:53:31,347 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:53:31,347 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:53:31,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:53:31,348 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:53:31,349 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:53:31,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:53:31,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:53:31,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:53:31,350 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:53:31,350 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:53:31,350 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:53:31,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:53:31,350 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:53:31,350 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:53:31,351 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:53:31,351 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:53:31,351 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:53:31,351 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:53:31,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:53:31,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:53:31,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:53:31,591 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:53:31,592 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:53:31,593 INFO L431 ainManager$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/lazy01.yml/witness.yml [2024-01-27 14:53:31,707 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:53:31,707 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:53:31,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2024-01-27 14:53:32,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:53:33,026 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:53:33,027 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2024-01-27 14:53:33,041 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3e0dfc0/63c805891de34f06834943849703f61e/FLAG9d4cb715e [2024-01-27 14:53:33,054 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3e0dfc0/63c805891de34f06834943849703f61e [2024-01-27 14:53:33,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:53:33,056 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:53:33,058 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:53:33,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:53:33,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:53:33,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:53:31" (1/2) ... [2024-01-27 14:53:33,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44f2107a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:53:33, skipping insertion in model container [2024-01-27 14:53:33,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:53:31" (1/2) ... [2024-01-27 14:53:33,065 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@634cf610 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:53:33, skipping insertion in model container [2024-01-27 14:53:33,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:53:33" (2/2) ... [2024-01-27 14:53:33,065 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44f2107a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33, skipping insertion in model container [2024-01-27 14:53:33,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:53:33" (2/2) ... [2024-01-27 14:53:33,066 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:53:33,099 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:53:33,100 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] (unsigned long )arg == 0UL [2024-01-27 14:53:33,100 INFO L98 nessWitnessExtractor]: Location invariant before [L730-L730] data == 0 [2024-01-27 14:53:33,101 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] (unsigned long )arg == 0UL [2024-01-27 14:53:33,101 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] (unsigned long )arg == 0UL [2024-01-27 14:53:33,101 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] (unsigned long )arg == 0UL [2024-01-27 14:53:33,101 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (unsigned long )arg == 0UL [2024-01-27 14:53:33,101 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] 0 <= data [2024-01-27 14:53:33,101 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] 2 <= data [2024-01-27 14:53:33,101 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] (unsigned long )arg == 0UL [2024-01-27 14:53:33,102 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L724] 0 <= data [2024-01-27 14:53:33,102 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L724] (unsigned long )arg == 0UL [2024-01-27 14:53:33,102 INFO L98 nessWitnessExtractor]: Location invariant before [L722-L722] data != 0 [2024-01-27 14:53:33,102 INFO L98 nessWitnessExtractor]: Location invariant before [L722-L722] 3 <= data [2024-01-27 14:53:33,102 INFO L98 nessWitnessExtractor]: Location invariant before [L722-L722] (unsigned long )arg == 0UL [2024-01-27 14:53:33,102 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] (unsigned long )arg == 0UL [2024-01-27 14:53:33,102 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] 1 <= data [2024-01-27 14:53:33,103 INFO L98 nessWitnessExtractor]: Location invariant before [L726-L726] (unsigned long )arg == 0UL [2024-01-27 14:53:33,103 INFO L98 nessWitnessExtractor]: Location invariant before [L725-L725] (unsigned long )arg == 0UL [2024-01-27 14:53:33,103 INFO L98 nessWitnessExtractor]: Location invariant before [L725-L725] 0 <= data [2024-01-27 14:53:33,103 INFO L98 nessWitnessExtractor]: Location invariant before [L725-L725] data <= 2 [2024-01-27 14:53:33,103 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L732] data == 0 [2024-01-27 14:53:33,104 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] 0 <= data [2024-01-27 14:53:33,104 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] (unsigned long )arg == 0UL [2024-01-27 14:53:33,104 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] (unsigned long )arg == 0UL [2024-01-27 14:53:33,142 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:53:33,435 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i[31042,31055] [2024-01-27 14:53:33,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:53:33,455 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 14:53:33,532 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i[31042,31055] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 14:53:33,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:53:33,561 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:53:33,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33 WrapperNode [2024-01-27 14:53:33,562 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:53:33,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:53:33,563 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:53:33,563 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:53:33,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33" (1/1) ... [2024-01-27 14:53:33,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33" (1/1) ... [2024-01-27 14:53:33,590 INFO L138 Inliner]: procedures = 170, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2024-01-27 14:53:33,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:53:33,591 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:53:33,591 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:53:33,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:53:33,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33" (1/1) ... [2024-01-27 14:53:33,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33" (1/1) ... [2024-01-27 14:53:33,601 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33" (1/1) ... [2024-01-27 14:53:33,618 INFO L175 MemorySlicer]: Split 13 memory accesses to 5 slices as follows [2, 2, 2, 5, 2]. 38 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 0, 5, 0]. The 3 writes are split as follows [0, 1, 1, 0, 1]. [2024-01-27 14:53:33,618 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33" (1/1) ... [2024-01-27 14:53:33,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33" (1/1) ... [2024-01-27 14:53:33,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33" (1/1) ... [2024-01-27 14:53:33,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33" (1/1) ... [2024-01-27 14:53:33,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33" (1/1) ... [2024-01-27 14:53:33,626 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33" (1/1) ... [2024-01-27 14:53:33,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:53:33,629 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:53:33,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:53:33,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:53:33,630 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33" (1/1) ... [2024-01-27 14:53:33,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:53:33,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:53:33,656 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) [2024-01-27 14:53:33,657 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 [2024-01-27 14:53:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:53:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:53:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:53:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 14:53:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 14:53:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 14:53:33,682 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 14:53:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 14:53:33,683 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 14:53:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 14:53:33,683 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 14:53:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:53:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:53:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:53:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:53:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 14:53:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 14:53:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:53:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:53:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:53:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:53:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:53:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:53:33,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:53:33,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 14:53:33,685 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 14:53:33,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:53:33,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:53:33,686 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:53:33,777 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:53:33,779 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:53:33,957 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:53:33,958 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:53:34,031 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:53:34,031 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 14:53:34,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:53:34 BoogieIcfgContainer [2024-01-27 14:53:34,031 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:53:34,033 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:53:34,033 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:53:34,035 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:53:34,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:53:31" (1/4) ... [2024-01-27 14:53:34,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409b3c12 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:53:34, skipping insertion in model container [2024-01-27 14:53:34,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:53:33" (2/4) ... [2024-01-27 14:53:34,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409b3c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:53:34, skipping insertion in model container [2024-01-27 14:53:34,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:33" (3/4) ... [2024-01-27 14:53:34,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409b3c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:53:34, skipping insertion in model container [2024-01-27 14:53:34,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:53:34" (4/4) ... [2024-01-27 14:53:34,038 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2024-01-27 14:53:34,054 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:53:34,054 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2024-01-27 14:53:34,054 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:53:34,144 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-27 14:53:34,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 83 transitions, 187 flow [2024-01-27 14:53:34,220 INFO L124 PetriNetUnfolderBase]: 1/80 cut-off events. [2024-01-27 14:53:34,220 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-27 14:53:34,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 80 events. 1/80 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 224 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2024-01-27 14:53:34,224 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 83 transitions, 187 flow [2024-01-27 14:53:34,229 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 78 transitions, 171 flow [2024-01-27 14:53:34,237 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:53:34,242 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;@40486acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:53:34,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-01-27 14:53:34,244 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:53:34,244 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:53:34,244 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:53:34,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:34,245 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:53:34,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 48 more)] === [2024-01-27 14:53:34,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:34,253 INFO L85 PathProgramCache]: Analyzing trace with hash 9158, now seen corresponding path program 1 times [2024-01-27 14:53:34,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:34,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262123773] [2024-01-27 14:53:34,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:34,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:34,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:53:34,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:34,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262123773] [2024-01-27 14:53:34,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262123773] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:34,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:34,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:53:34,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512477319] [2024-01-27 14:53:34,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:34,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:53:34,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:34,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:53:34,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:53:34,563 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 83 [2024-01-27 14:53:34,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 78 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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) [2024-01-27 14:53:34,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:34,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 83 [2024-01-27 14:53:34,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:35,172 INFO L124 PetriNetUnfolderBase]: 2325/4516 cut-off events. [2024-01-27 14:53:35,173 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-01-27 14:53:35,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8274 conditions, 4516 events. 2325/4516 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 36275 event pairs, 1173 based on Foata normal form. 171/4225 useless extension candidates. Maximal degree in co-relation 7235. Up to 3231 conditions per place. [2024-01-27 14:53:35,206 INFO L140 encePairwiseOnDemand]: 68/83 looper letters, 51 selfloop transitions, 4 changer transitions 0/95 dead transitions. [2024-01-27 14:53:35,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 95 transitions, 327 flow [2024-01-27 14:53:35,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:53:35,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:53:35,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 195 transitions. [2024-01-27 14:53:35,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7831325301204819 [2024-01-27 14:53:35,220 INFO L175 Difference]: Start difference. First operand has 87 places, 78 transitions, 171 flow. Second operand 3 states and 195 transitions. [2024-01-27 14:53:35,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 95 transitions, 327 flow [2024-01-27 14:53:35,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 95 transitions, 311 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-01-27 14:53:35,231 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 192 flow [2024-01-27 14:53:35,233 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=192, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2024-01-27 14:53:35,237 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -4 predicate places. [2024-01-27 14:53:35,237 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 192 flow [2024-01-27 14:53:35,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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) [2024-01-27 14:53:35,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:35,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 14:53:35,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:53:35,238 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 48 more)] === [2024-01-27 14:53:35,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:35,239 INFO L85 PathProgramCache]: Analyzing trace with hash -122850908, now seen corresponding path program 1 times [2024-01-27 14:53:35,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:35,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061024839] [2024-01-27 14:53:35,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:35,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:35,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:53:35,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:35,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061024839] [2024-01-27 14:53:35,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061024839] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:35,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:35,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:53:35,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443773942] [2024-01-27 14:53:35,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:35,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:53:35,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:35,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:53:35,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:53:35,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 83 [2024-01-27 14:53:35,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 192 flow. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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) [2024-01-27 14:53:35,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:35,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 83 [2024-01-27 14:53:35,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:35,750 INFO L124 PetriNetUnfolderBase]: 1094/2875 cut-off events. [2024-01-27 14:53:35,750 INFO L125 PetriNetUnfolderBase]: For 302/447 co-relation queries the response was YES. [2024-01-27 14:53:35,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5273 conditions, 2875 events. 1094/2875 cut-off events. For 302/447 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 25461 event pairs, 385 based on Foata normal form. 224/2781 useless extension candidates. Maximal degree in co-relation 2261. Up to 1325 conditions per place. [2024-01-27 14:53:35,769 INFO L140 encePairwiseOnDemand]: 77/83 looper letters, 37 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2024-01-27 14:53:35,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 85 transitions, 292 flow [2024-01-27 14:53:35,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:53:35,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:53:35,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 245 transitions. [2024-01-27 14:53:35,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7379518072289156 [2024-01-27 14:53:35,771 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 192 flow. Second operand 4 states and 245 transitions. [2024-01-27 14:53:35,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 85 transitions, 292 flow [2024-01-27 14:53:35,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 85 transitions, 287 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 14:53:35,775 INFO L231 Difference]: Finished difference. Result has 81 places, 73 transitions, 184 flow [2024-01-27 14:53:35,776 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=81, PETRI_TRANSITIONS=73} [2024-01-27 14:53:35,776 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -6 predicate places. [2024-01-27 14:53:35,776 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 73 transitions, 184 flow [2024-01-27 14:53:35,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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) [2024-01-27 14:53:35,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:35,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:53:35,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:53:35,777 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 48 more)] === [2024-01-27 14:53:35,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:35,778 INFO L85 PathProgramCache]: Analyzing trace with hash -2097258910, now seen corresponding path program 1 times [2024-01-27 14:53:35,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:35,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006897505] [2024-01-27 14:53:35,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:35,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:35,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:53:35,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:35,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006897505] [2024-01-27 14:53:35,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006897505] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:35,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:35,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:53:35,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771910355] [2024-01-27 14:53:35,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:35,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:53:35,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:35,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:53:35,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:53:35,875 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 83 [2024-01-27 14:53:35,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 73 transitions, 184 flow. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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) [2024-01-27 14:53:35,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:35,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 83 [2024-01-27 14:53:35,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:36,167 INFO L124 PetriNetUnfolderBase]: 1255/3330 cut-off events. [2024-01-27 14:53:36,167 INFO L125 PetriNetUnfolderBase]: For 248/299 co-relation queries the response was YES. [2024-01-27 14:53:36,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5918 conditions, 3330 events. 1255/3330 cut-off events. For 248/299 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 30024 event pairs, 779 based on Foata normal form. 244/3145 useless extension candidates. Maximal degree in co-relation 5901. Up to 1477 conditions per place. [2024-01-27 14:53:36,187 INFO L140 encePairwiseOnDemand]: 77/83 looper letters, 41 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2024-01-27 14:53:36,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 85 transitions, 301 flow [2024-01-27 14:53:36,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:53:36,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:53:36,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 249 transitions. [2024-01-27 14:53:36,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-01-27 14:53:36,192 INFO L175 Difference]: Start difference. First operand has 81 places, 73 transitions, 184 flow. Second operand 4 states and 249 transitions. [2024-01-27 14:53:36,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 85 transitions, 301 flow [2024-01-27 14:53:36,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 85 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:53:36,195 INFO L231 Difference]: Finished difference. Result has 78 places, 69 transitions, 177 flow [2024-01-27 14:53:36,195 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=177, PETRI_PLACES=78, PETRI_TRANSITIONS=69} [2024-01-27 14:53:36,196 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -9 predicate places. [2024-01-27 14:53:36,196 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 69 transitions, 177 flow [2024-01-27 14:53:36,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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) [2024-01-27 14:53:36,196 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:36,196 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:53:36,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:53:36,197 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 48 more)] === [2024-01-27 14:53:36,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:36,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1128210920, now seen corresponding path program 1 times [2024-01-27 14:53:36,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:36,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048274769] [2024-01-27 14:53:36,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:36,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:36,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:53:36,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:36,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048274769] [2024-01-27 14:53:36,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048274769] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:36,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:36,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:53:36,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985367496] [2024-01-27 14:53:36,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:36,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:53:36,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:36,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:53:36,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:53:36,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 83 [2024-01-27 14:53:36,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 177 flow. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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) [2024-01-27 14:53:36,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:36,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 83 [2024-01-27 14:53:36,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:36,667 INFO L124 PetriNetUnfolderBase]: 1311/3445 cut-off events. [2024-01-27 14:53:36,667 INFO L125 PetriNetUnfolderBase]: For 280/332 co-relation queries the response was YES. [2024-01-27 14:53:36,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6122 conditions, 3445 events. 1311/3445 cut-off events. For 280/332 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 30785 event pairs, 371 based on Foata normal form. 292/3392 useless extension candidates. Maximal degree in co-relation 6106. Up to 1213 conditions per place. [2024-01-27 14:53:36,687 INFO L140 encePairwiseOnDemand]: 76/83 looper letters, 50 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2024-01-27 14:53:36,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 89 transitions, 339 flow [2024-01-27 14:53:36,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:53:36,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:53:36,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-01-27 14:53:36,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7560240963855421 [2024-01-27 14:53:36,689 INFO L175 Difference]: Start difference. First operand has 78 places, 69 transitions, 177 flow. Second operand 4 states and 251 transitions. [2024-01-27 14:53:36,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 89 transitions, 339 flow [2024-01-27 14:53:36,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 89 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:53:36,692 INFO L231 Difference]: Finished difference. Result has 74 places, 64 transitions, 168 flow [2024-01-27 14:53:36,692 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=74, PETRI_TRANSITIONS=64} [2024-01-27 14:53:36,693 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -13 predicate places. [2024-01-27 14:53:36,693 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 64 transitions, 168 flow [2024-01-27 14:53:36,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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) [2024-01-27 14:53:36,694 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:36,694 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:53:36,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:53:36,694 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 48 more)] === [2024-01-27 14:53:36,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:36,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1777074926, now seen corresponding path program 1 times [2024-01-27 14:53:36,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:36,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139550559] [2024-01-27 14:53:36,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:36,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:36,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:53:36,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:36,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139550559] [2024-01-27 14:53:36,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139550559] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:36,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:36,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:53:36,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070613845] [2024-01-27 14:53:36,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:36,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:53:36,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:36,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:53:36,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:53:36,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 83 [2024-01-27 14:53:36,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 64 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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) [2024-01-27 14:53:36,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:36,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 83 [2024-01-27 14:53:36,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:37,008 INFO L124 PetriNetUnfolderBase]: 1405/2630 cut-off events. [2024-01-27 14:53:37,009 INFO L125 PetriNetUnfolderBase]: For 667/815 co-relation queries the response was YES. [2024-01-27 14:53:37,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5497 conditions, 2630 events. 1405/2630 cut-off events. For 667/815 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 18538 event pairs, 611 based on Foata normal form. 414/2984 useless extension candidates. Maximal degree in co-relation 5481. Up to 2050 conditions per place. [2024-01-27 14:53:37,020 INFO L140 encePairwiseOnDemand]: 74/83 looper letters, 39 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2024-01-27 14:53:37,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 68 transitions, 255 flow [2024-01-27 14:53:37,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:53:37,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:53:37,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 216 transitions. [2024-01-27 14:53:37,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6506024096385542 [2024-01-27 14:53:37,022 INFO L175 Difference]: Start difference. First operand has 74 places, 64 transitions, 168 flow. Second operand 4 states and 216 transitions. [2024-01-27 14:53:37,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 68 transitions, 255 flow [2024-01-27 14:53:37,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 68 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:53:37,024 INFO L231 Difference]: Finished difference. Result has 69 places, 58 transitions, 149 flow [2024-01-27 14:53:37,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=149, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2024-01-27 14:53:37,026 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -18 predicate places. [2024-01-27 14:53:37,026 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 149 flow [2024-01-27 14:53:37,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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) [2024-01-27 14:53:37,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:37,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:53:37,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:53:37,027 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 48 more)] === [2024-01-27 14:53:37,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:37,027 INFO L85 PathProgramCache]: Analyzing trace with hash 22950087, now seen corresponding path program 1 times [2024-01-27 14:53:37,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:37,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078238643] [2024-01-27 14:53:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:37,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:37,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:53:37,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:37,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078238643] [2024-01-27 14:53:37,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078238643] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:37,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:37,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:53:37,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720914004] [2024-01-27 14:53:37,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:37,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:53:37,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:37,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:53:37,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:53:37,107 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 83 [2024-01-27 14:53:37,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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) [2024-01-27 14:53:37,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:37,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 83 [2024-01-27 14:53:37,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:37,315 INFO L124 PetriNetUnfolderBase]: 1405/2605 cut-off events. [2024-01-27 14:53:37,315 INFO L125 PetriNetUnfolderBase]: For 499/557 co-relation queries the response was YES. [2024-01-27 14:53:37,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5479 conditions, 2605 events. 1405/2605 cut-off events. For 499/557 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 17487 event pairs, 227 based on Foata normal form. 130/2683 useless extension candidates. Maximal degree in co-relation 5462. Up to 1782 conditions per place. [2024-01-27 14:53:37,325 INFO L140 encePairwiseOnDemand]: 77/83 looper letters, 45 selfloop transitions, 6 changer transitions 7/82 dead transitions. [2024-01-27 14:53:37,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 82 transitions, 325 flow [2024-01-27 14:53:37,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:53:37,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:53:37,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 222 transitions. [2024-01-27 14:53:37,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6686746987951807 [2024-01-27 14:53:37,326 INFO L175 Difference]: Start difference. First operand has 69 places, 58 transitions, 149 flow. Second operand 4 states and 222 transitions. [2024-01-27 14:53:37,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 82 transitions, 325 flow [2024-01-27 14:53:37,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 82 transitions, 321 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:53:37,330 INFO L231 Difference]: Finished difference. Result has 70 places, 57 transitions, 172 flow [2024-01-27 14:53:37,331 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=70, PETRI_TRANSITIONS=57} [2024-01-27 14:53:37,333 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -17 predicate places. [2024-01-27 14:53:37,333 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 57 transitions, 172 flow [2024-01-27 14:53:37,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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) [2024-01-27 14:53:37,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:37,333 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] [2024-01-27 14:53:37,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 14:53:37,334 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 48 more)] === [2024-01-27 14:53:37,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:37,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1296645782, now seen corresponding path program 1 times [2024-01-27 14:53:37,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:37,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370792344] [2024-01-27 14:53:37,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:37,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:37,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:53:37,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:37,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370792344] [2024-01-27 14:53:37,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370792344] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:37,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:37,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:53:37,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974086307] [2024-01-27 14:53:37,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:37,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:53:37,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:37,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:53:37,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:53:37,408 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 83 [2024-01-27 14:53:37,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 57 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2024-01-27 14:53:37,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:37,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 83 [2024-01-27 14:53:37,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:37,480 INFO L124 PetriNetUnfolderBase]: 139/766 cut-off events. [2024-01-27 14:53:37,480 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-01-27 14:53:37,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1312 conditions, 766 events. 139/766 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 5161 event pairs, 40 based on Foata normal form. 58/780 useless extension candidates. Maximal degree in co-relation 1294. Up to 173 conditions per place. [2024-01-27 14:53:37,483 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 30 selfloop transitions, 5 changer transitions 0/67 dead transitions. [2024-01-27 14:53:37,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 67 transitions, 263 flow [2024-01-27 14:53:37,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:53:37,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:53:37,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2024-01-27 14:53:37,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8192771084337349 [2024-01-27 14:53:37,484 INFO L175 Difference]: Start difference. First operand has 70 places, 57 transitions, 172 flow. Second operand 3 states and 204 transitions. [2024-01-27 14:53:37,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 67 transitions, 263 flow [2024-01-27 14:53:37,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 67 transitions, 256 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-01-27 14:53:37,487 INFO L231 Difference]: Finished difference. Result has 68 places, 56 transitions, 169 flow [2024-01-27 14:53:37,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=169, PETRI_PLACES=68, PETRI_TRANSITIONS=56} [2024-01-27 14:53:37,491 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -19 predicate places. [2024-01-27 14:53:37,491 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 56 transitions, 169 flow [2024-01-27 14:53:37,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2024-01-27 14:53:37,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:37,491 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] [2024-01-27 14:53:37,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 14:53:37,492 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 48 more)] === [2024-01-27 14:53:37,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:37,492 INFO L85 PathProgramCache]: Analyzing trace with hash -688173972, now seen corresponding path program 1 times [2024-01-27 14:53:37,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:37,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668900621] [2024-01-27 14:53:37,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:37,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:37,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:53:37,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:37,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668900621] [2024-01-27 14:53:37,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668900621] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:37,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:37,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:53:37,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857395259] [2024-01-27 14:53:37,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:37,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:53:37,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:37,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:53:37,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:53:37,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 83 [2024-01-27 14:53:37,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 56 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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) [2024-01-27 14:53:37,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:37,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 83 [2024-01-27 14:53:37,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:37,634 INFO L124 PetriNetUnfolderBase]: 291/819 cut-off events. [2024-01-27 14:53:37,634 INFO L125 PetriNetUnfolderBase]: For 247/247 co-relation queries the response was YES. [2024-01-27 14:53:37,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1634 conditions, 819 events. 291/819 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4809 event pairs, 133 based on Foata normal form. 24/793 useless extension candidates. Maximal degree in co-relation 1616. Up to 353 conditions per place. [2024-01-27 14:53:37,637 INFO L140 encePairwiseOnDemand]: 77/83 looper letters, 37 selfloop transitions, 4 changer transitions 6/69 dead transitions. [2024-01-27 14:53:37,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 69 transitions, 287 flow [2024-01-27 14:53:37,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:53:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:53:37,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2024-01-27 14:53:37,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6987951807228916 [2024-01-27 14:53:37,638 INFO L175 Difference]: Start difference. First operand has 68 places, 56 transitions, 169 flow. Second operand 3 states and 174 transitions. [2024-01-27 14:53:37,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 69 transitions, 287 flow [2024-01-27 14:53:37,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 69 transitions, 275 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-01-27 14:53:37,640 INFO L231 Difference]: Finished difference. Result has 68 places, 50 transitions, 147 flow [2024-01-27 14:53:37,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=68, PETRI_TRANSITIONS=50} [2024-01-27 14:53:37,642 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -19 predicate places. [2024-01-27 14:53:37,642 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 50 transitions, 147 flow [2024-01-27 14:53:37,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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) [2024-01-27 14:53:37,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:37,642 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] [2024-01-27 14:53:37,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-27 14:53:37,642 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 48 more)] === [2024-01-27 14:53:37,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:37,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1540763886, now seen corresponding path program 1 times [2024-01-27 14:53:37,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:37,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376513228] [2024-01-27 14:53:37,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:37,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:37,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:53:37,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:37,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376513228] [2024-01-27 14:53:37,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376513228] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:37,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:37,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:53:37,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325919592] [2024-01-27 14:53:37,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:37,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:53:37,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:37,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:53:37,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:53:37,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 83 [2024-01-27 14:53:37,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 50 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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) [2024-01-27 14:53:37,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:37,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 83 [2024-01-27 14:53:37,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:37,770 INFO L124 PetriNetUnfolderBase]: 199/563 cut-off events. [2024-01-27 14:53:37,770 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2024-01-27 14:53:37,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1173 conditions, 563 events. 199/563 cut-off events. For 211/211 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3087 event pairs, 131 based on Foata normal form. 24/529 useless extension candidates. Maximal degree in co-relation 1153. Up to 275 conditions per place. [2024-01-27 14:53:37,772 INFO L140 encePairwiseOnDemand]: 81/83 looper letters, 32 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2024-01-27 14:53:37,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 56 transitions, 227 flow [2024-01-27 14:53:37,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:53:37,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:53:37,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 161 transitions. [2024-01-27 14:53:37,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6465863453815262 [2024-01-27 14:53:37,773 INFO L175 Difference]: Start difference. First operand has 68 places, 50 transitions, 147 flow. Second operand 3 states and 161 transitions. [2024-01-27 14:53:37,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 56 transitions, 227 flow [2024-01-27 14:53:37,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 56 transitions, 221 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:53:37,775 INFO L231 Difference]: Finished difference. Result has 63 places, 49 transitions, 141 flow [2024-01-27 14:53:37,775 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=63, PETRI_TRANSITIONS=49} [2024-01-27 14:53:37,776 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -24 predicate places. [2024-01-27 14:53:37,776 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 49 transitions, 141 flow [2024-01-27 14:53:37,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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) [2024-01-27 14:53:37,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:37,776 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] [2024-01-27 14:53:37,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-27 14:53:37,777 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err6ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 48 more)] === [2024-01-27 14:53:37,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:37,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1512500682, now seen corresponding path program 1 times [2024-01-27 14:53:37,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:37,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111790209] [2024-01-27 14:53:37,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:37,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:37,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:53:37,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:37,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111790209] [2024-01-27 14:53:37,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111790209] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:37,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:37,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:53:37,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106085006] [2024-01-27 14:53:37,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:37,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:53:37,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:37,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:53:37,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:53:37,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 83 [2024-01-27 14:53:37,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 49 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2024-01-27 14:53:37,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:37,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 83 [2024-01-27 14:53:37,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:37,928 INFO L124 PetriNetUnfolderBase]: 241/649 cut-off events. [2024-01-27 14:53:37,928 INFO L125 PetriNetUnfolderBase]: For 220/220 co-relation queries the response was YES. [2024-01-27 14:53:37,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 649 events. 241/649 cut-off events. For 220/220 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3303 event pairs, 71 based on Foata normal form. 4/642 useless extension candidates. Maximal degree in co-relation 1303. Up to 349 conditions per place. [2024-01-27 14:53:37,930 INFO L140 encePairwiseOnDemand]: 79/83 looper letters, 40 selfloop transitions, 4 changer transitions 2/65 dead transitions. [2024-01-27 14:53:37,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 271 flow [2024-01-27 14:53:37,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:53:37,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:53:37,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 211 transitions. [2024-01-27 14:53:37,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6355421686746988 [2024-01-27 14:53:37,932 INFO L175 Difference]: Start difference. First operand has 63 places, 49 transitions, 141 flow. Second operand 4 states and 211 transitions. [2024-01-27 14:53:37,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 271 flow [2024-01-27 14:53:37,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 65 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 14:53:37,934 INFO L231 Difference]: Finished difference. Result has 65 places, 48 transitions, 141 flow [2024-01-27 14:53:37,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=141, PETRI_PLACES=65, PETRI_TRANSITIONS=48} [2024-01-27 14:53:37,935 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -22 predicate places. [2024-01-27 14:53:37,935 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 48 transitions, 141 flow [2024-01-27 14:53:37,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2024-01-27 14:53:37,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:37,936 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] [2024-01-27 14:53:37,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-27 14:53:37,936 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err6ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 48 more)] === [2024-01-27 14:53:37,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:37,937 INFO L85 PathProgramCache]: Analyzing trace with hash 51860289, now seen corresponding path program 1 times [2024-01-27 14:53:37,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:37,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446260498] [2024-01-27 14:53:37,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:37,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:37,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:53:37,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:37,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446260498] [2024-01-27 14:53:37,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446260498] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:37,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:37,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:53:37,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611782174] [2024-01-27 14:53:37,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:37,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:53:37,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:37,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:53:37,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:53:38,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 83 [2024-01-27 14:53:38,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 48 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 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) [2024-01-27 14:53:38,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:38,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 83 [2024-01-27 14:53:38,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:38,091 INFO L124 PetriNetUnfolderBase]: 229/619 cut-off events. [2024-01-27 14:53:38,091 INFO L125 PetriNetUnfolderBase]: For 194/194 co-relation queries the response was YES. [2024-01-27 14:53:38,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1277 conditions, 619 events. 229/619 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3099 event pairs, 57 based on Foata normal form. 4/612 useless extension candidates. Maximal degree in co-relation 1257. Up to 271 conditions per place. [2024-01-27 14:53:38,093 INFO L140 encePairwiseOnDemand]: 79/83 looper letters, 42 selfloop transitions, 5 changer transitions 2/68 dead transitions. [2024-01-27 14:53:38,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 68 transitions, 291 flow [2024-01-27 14:53:38,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:53:38,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:53:38,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 202 transitions. [2024-01-27 14:53:38,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.608433734939759 [2024-01-27 14:53:38,095 INFO L175 Difference]: Start difference. First operand has 65 places, 48 transitions, 141 flow. Second operand 4 states and 202 transitions. [2024-01-27 14:53:38,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 68 transitions, 291 flow [2024-01-27 14:53:38,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 68 transitions, 282 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 14:53:38,096 INFO L231 Difference]: Finished difference. Result has 66 places, 48 transitions, 148 flow [2024-01-27 14:53:38,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=66, PETRI_TRANSITIONS=48} [2024-01-27 14:53:38,097 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -21 predicate places. [2024-01-27 14:53:38,097 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 48 transitions, 148 flow [2024-01-27 14:53:38,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 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) [2024-01-27 14:53:38,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:38,097 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] [2024-01-27 14:53:38,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-27 14:53:38,098 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err6ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 48 more)] === [2024-01-27 14:53:38,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:38,098 INFO L85 PathProgramCache]: Analyzing trace with hash 745437818, now seen corresponding path program 1 times [2024-01-27 14:53:38,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:38,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594195369] [2024-01-27 14:53:38,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:38,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:53:38,130 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 14:53:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:53:38,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 14:53:38,169 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 14:53:38,170 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread3Err6ASSERT_VIOLATIONERROR_FUNCTION (50 of 51 remaining) [2024-01-27 14:53:38,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 51 remaining) [2024-01-27 14:53:38,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 51 remaining) [2024-01-27 14:53:38,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 51 remaining) [2024-01-27 14:53:38,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 51 remaining) [2024-01-27 14:53:38,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 51 remaining) [2024-01-27 14:53:38,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 51 remaining) [2024-01-27 14:53:38,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 51 remaining) [2024-01-27 14:53:38,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 51 remaining) [2024-01-27 14:53:38,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 51 remaining) [2024-01-27 14:53:38,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 51 remaining) [2024-01-27 14:53:38,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 51 remaining) [2024-01-27 14:53:38,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 51 remaining) [2024-01-27 14:53:38,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 51 remaining) [2024-01-27 14:53:38,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 51 remaining) [2024-01-27 14:53:38,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 51 remaining) [2024-01-27 14:53:38,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 51 remaining) [2024-01-27 14:53:38,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err7ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 51 remaining) [2024-01-27 14:53:38,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 51 remaining) [2024-01-27 14:53:38,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err8ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 51 remaining) [2024-01-27 14:53:38,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 51 remaining) [2024-01-27 14:53:38,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err9ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 51 remaining) [2024-01-27 14:53:38,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err6ASSERT_VIOLATIONERROR_FUNCTION (28 of 51 remaining) [2024-01-27 14:53:38,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err10ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 51 remaining) [2024-01-27 14:53:38,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 51 remaining) [2024-01-27 14:53:38,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 51 remaining) [2024-01-27 14:53:38,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 51 remaining) [2024-01-27 14:53:38,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 51 remaining) [2024-01-27 14:53:38,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 51 remaining) [2024-01-27 14:53:38,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 51 remaining) [2024-01-27 14:53:38,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 51 remaining) [2024-01-27 14:53:38,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 51 remaining) [2024-01-27 14:53:38,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 51 remaining) [2024-01-27 14:53:38,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 51 remaining) [2024-01-27 14:53:38,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 51 remaining) [2024-01-27 14:53:38,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 51 remaining) [2024-01-27 14:53:38,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 51 remaining) [2024-01-27 14:53:38,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 51 remaining) [2024-01-27 14:53:38,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 51 remaining) [2024-01-27 14:53:38,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 51 remaining) [2024-01-27 14:53:38,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 51 remaining) [2024-01-27 14:53:38,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 51 remaining) [2024-01-27 14:53:38,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 51 remaining) [2024-01-27 14:53:38,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 51 remaining) [2024-01-27 14:53:38,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 51 remaining) [2024-01-27 14:53:38,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err7ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 51 remaining) [2024-01-27 14:53:38,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 51 remaining) [2024-01-27 14:53:38,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err8ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 51 remaining) [2024-01-27 14:53:38,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 51 remaining) [2024-01-27 14:53:38,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err9ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 51 remaining) [2024-01-27 14:53:38,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err10ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 51 remaining) [2024-01-27 14:53:38,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-27 14:53:38,179 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:53:38,185 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 14:53:38,185 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:53:38,235 INFO L503 ceAbstractionStarter]: Automizer considered 24 witness invariants [2024-01-27 14:53:38,236 INFO L504 ceAbstractionStarter]: WitnessConsidered=24 [2024-01-27 14:53:38,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:53:38 BasicIcfg [2024-01-27 14:53:38,238 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:53:38,238 INFO L158 Benchmark]: Toolchain (without parser) took 5182.68ms. Allocated memory was 165.7MB in the beginning and 348.1MB in the end (delta: 182.5MB). Free memory was 125.4MB in the beginning and 127.5MB in the end (delta: -2.1MB). Peak memory consumption was 181.0MB. Max. memory is 16.1GB. [2024-01-27 14:53:38,238 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:53:38,238 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 90.4MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:53:38,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.19ms. Allocated memory is still 165.7MB. Free memory was 125.0MB in the beginning and 101.1MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-27 14:53:38,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.37ms. Allocated memory is still 165.7MB. Free memory was 101.1MB in the beginning and 99.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:53:38,239 INFO L158 Benchmark]: Boogie Preprocessor took 37.03ms. Allocated memory is still 165.7MB. Free memory was 99.0MB in the beginning and 96.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:53:38,239 INFO L158 Benchmark]: RCFGBuilder took 402.83ms. Allocated memory is still 165.7MB. Free memory was 96.5MB in the beginning and 68.4MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-01-27 14:53:38,240 INFO L158 Benchmark]: TraceAbstraction took 4204.57ms. Allocated memory was 165.7MB in the beginning and 348.1MB in the end (delta: 182.5MB). Free memory was 67.5MB in the beginning and 127.5MB in the end (delta: -60.0MB). Peak memory consumption was 122.2MB. Max. memory is 16.1GB. [2024-01-27 14:53:38,242 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 90.4MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.19ms. Allocated memory is still 165.7MB. Free memory was 125.0MB in the beginning and 101.1MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.37ms. Allocated memory is still 165.7MB. Free memory was 101.1MB in the beginning and 99.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.03ms. Allocated memory is still 165.7MB. Free memory was 99.0MB in the beginning and 96.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.83ms. Allocated memory is still 165.7MB. Free memory was 96.5MB in the beginning and 68.4MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4204.57ms. Allocated memory was 165.7MB in the beginning and 348.1MB in the end (delta: 182.5MB). Free memory was 67.5MB in the beginning and 127.5MB in the end (delta: -60.0MB). Peak memory consumption was 122.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L703] 0 int data = 0; [L730] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[data],IntegerLiteral[0]]]] [L731] 0 pthread_t t1, t2, t3; VAL [data=0, mutex={3:0}, t1={7:0}, t2={5:0}, t3={6:0}] [L732] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[data],IntegerLiteral[0]]]] [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={3:0}, t1={7:0}, t2={5:0}, t3={6:0}] [L706] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, data=0, mutex={3:0}] [L707] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[data]]]] VAL [arg={0:0}, arg={0:0}, data=0, mutex={3:0}] [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={3:0}, t1={7:0}, t2={5:0}, t3={6:0}] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={3:0}, t1={7:0}, t2={5:0}, t3={6:0}] [L707] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L707] 1 data++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={3:0}] [L708] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[1],IdentifierExpression[data]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={3:0}] [L708] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={3:0}] [L713] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={3:0}] [L714] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={3:0}] [L714] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[data]]]] [L714] 2 data+=2 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L715] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L715] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[2],IdentifierExpression[data]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L720] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L721] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L721] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[data]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L721] COND TRUE 3 data >= 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L722] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L722] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[3],IdentifierExpression[data]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L722] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPNEQ,IdentifierExpression[data],IntegerLiteral[0]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L722] 3 reach_error() VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 730]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 733]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 734]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 151 locations, 51 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: 4.0s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 668 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 444 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 966 IncrementalHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 54 mSDtfsCounter, 966 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=1, InterpolantAutomatonStates: 40, 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, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 169 ConstructedInterpolants, 0 QuantifiedInterpolants, 393 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 RESULT: Ultimate proved your program to be incorrect! [2024-01-27 14:53:38,286 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE