./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/sync01.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/sync01.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/sync01.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/sync01.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 14:46:23,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:46:23,788 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:46:23,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:46:23,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:46:23,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:46:23,832 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:46:23,832 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:46:23,833 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:46:23,836 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:46:23,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:46:23,836 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:46:23,837 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:46:23,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:46:23,838 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:46:23,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:46:23,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:46:23,839 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:46:23,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:46:23,839 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:46:23,839 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:46:23,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:46:23,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:46:23,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:46:23,840 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:46:23,841 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:46:23,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:46:23,841 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:46:23,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:46:23,842 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:46:23,842 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:46:23,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:46:23,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:46:23,843 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:46:23,843 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:46:23,843 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:46:23,843 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:46:23,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:46:23,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:46:23,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:46:23,851 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:46:23,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:46:23,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:46:23,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:46:24,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:46:24,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:46:24,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:46:24,071 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:46:24,072 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:46:24,072 INFO L431 ainManager$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/sync01.yml/witness.yml [2024-01-27 14:46:24,159 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:46:24,160 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:46:24,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2024-01-27 14:46:25,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:46:25,416 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:46:25,416 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2024-01-27 14:46:25,435 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3521f722/995b94959f8d4d9e8efb94545eafd5c6/FLAGbcb804d95 [2024-01-27 14:46:25,445 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3521f722/995b94959f8d4d9e8efb94545eafd5c6 [2024-01-27 14:46:25,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:46:25,447 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:46:25,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:46:25,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:46:25,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:46:25,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:46:24" (1/2) ... [2024-01-27 14:46:25,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f270d8a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:25, skipping insertion in model container [2024-01-27 14:46:25,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:46:24" (1/2) ... [2024-01-27 14:46:25,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@64da350a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:25, skipping insertion in model container [2024-01-27 14:46:25,459 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:46:25" (2/2) ... [2024-01-27 14:46:25,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f270d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25, skipping insertion in model container [2024-01-27 14:46:25,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:46:25" (2/2) ... [2024-01-27 14:46:25,459 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:46:25,502 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:46:25,503 INFO L98 nessWitnessExtractor]: Location invariant before [L948-L948] num == 1 [2024-01-27 14:46:25,503 INFO L98 nessWitnessExtractor]: Location invariant before [L948-L948] (unsigned long )arg == 0UL [2024-01-27 14:46:25,503 INFO L98 nessWitnessExtractor]: Location invariant before [L941-L941] (unsigned long )arg == 0UL [2024-01-27 14:46:25,503 INFO L98 nessWitnessExtractor]: Location invariant before [L939-L939] num == 1 [2024-01-27 14:46:25,503 INFO L98 nessWitnessExtractor]: Location invariant before [L939-L939] (unsigned long )arg == 0UL [2024-01-27 14:46:25,503 INFO L98 nessWitnessExtractor]: Location invariant before [L956-L956] num == 0 [2024-01-27 14:46:25,504 INFO L98 nessWitnessExtractor]: Location invariant before [L940-L940] (unsigned long )arg == 0UL [2024-01-27 14:46:25,504 INFO L98 nessWitnessExtractor]: Loop invariant at [L936-L937] num <= 1 [2024-01-27 14:46:25,504 INFO L98 nessWitnessExtractor]: Location invariant after [L936-L937] (unsigned long )arg == 0UL [2024-01-27 14:46:25,504 INFO L98 nessWitnessExtractor]: Loop invariant at [L936-L937] (unsigned long )arg == 0UL [2024-01-27 14:46:25,504 INFO L98 nessWitnessExtractor]: Location invariant after [L936-L937] num == 1 [2024-01-27 14:46:25,504 INFO L98 nessWitnessExtractor]: Loop invariant at [L936-L937] 0 <= num [2024-01-27 14:46:25,504 INFO L98 nessWitnessExtractor]: Location invariant before [L958-L958] num == 1 [2024-01-27 14:46:25,504 INFO L98 nessWitnessExtractor]: Location invariant before [L949-L949] num == 0 [2024-01-27 14:46:25,505 INFO L98 nessWitnessExtractor]: Location invariant before [L949-L949] (unsigned long )arg == 0UL [2024-01-27 14:46:25,505 INFO L98 nessWitnessExtractor]: Location invariant after [L946-L947] (unsigned long )arg == 0UL [2024-01-27 14:46:25,505 INFO L98 nessWitnessExtractor]: Loop invariant at [L946-L947] num <= 1 [2024-01-27 14:46:25,505 INFO L98 nessWitnessExtractor]: Loop invariant at [L946-L947] (unsigned long )arg == 0UL [2024-01-27 14:46:25,505 INFO L98 nessWitnessExtractor]: Loop invariant at [L946-L947] 0 <= num [2024-01-27 14:46:25,505 INFO L98 nessWitnessExtractor]: Location invariant after [L946-L947] num == 0 [2024-01-27 14:46:25,505 INFO L98 nessWitnessExtractor]: Location invariant before [L951-L951] (unsigned long )arg == 0UL [2024-01-27 14:46:25,506 INFO L98 nessWitnessExtractor]: Location invariant before [L935-L935] (unsigned long )arg == 0UL [2024-01-27 14:46:25,506 INFO L98 nessWitnessExtractor]: Location invariant before [L950-L950] (unsigned long )arg == 0UL [2024-01-27 14:46:25,506 INFO L98 nessWitnessExtractor]: Location invariant before [L959-L959] num == 1 [2024-01-27 14:46:25,506 INFO L98 nessWitnessExtractor]: Location invariant before [L957-L957] num == 1 [2024-01-27 14:46:25,506 INFO L98 nessWitnessExtractor]: Location invariant before [L945-L945] (unsigned long )arg == 0UL [2024-01-27 14:46:25,507 INFO L98 nessWitnessExtractor]: Location invariant before [L938-L938] (unsigned long )arg == 0UL [2024-01-27 14:46:25,507 INFO L98 nessWitnessExtractor]: Location invariant before [L938-L938] num == 0 [2024-01-27 14:46:25,507 INFO L98 nessWitnessExtractor]: Location invariant before [L960-L960] num == 1 [2024-01-27 14:46:25,546 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:46:25,850 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/sync01.i[42004,42017] [2024-01-27 14:46:25,853 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:46:25,862 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 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 Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 14:46:25,942 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/sync01.i[42004,42017] [2024-01-27 14:46:25,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:46:25,991 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:46:25,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25 WrapperNode [2024-01-27 14:46:25,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:46:25,995 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:46:25,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:46:25,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:46:26,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25" (1/1) ... [2024-01-27 14:46:26,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25" (1/1) ... [2024-01-27 14:46:26,054 INFO L138 Inliner]: procedures = 269, calls = 50, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2024-01-27 14:46:26,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:46:26,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:46:26,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:46:26,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:46:26,064 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25" (1/1) ... [2024-01-27 14:46:26,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25" (1/1) ... [2024-01-27 14:46:26,080 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25" (1/1) ... [2024-01-27 14:46:26,090 INFO L175 MemorySlicer]: Split 27 memory accesses to 6 slices as follows [2, 5, 8, 8, 2, 2]. 30 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 5, 8, 8, 0, 0]. The 2 writes are split as follows [0, 0, 0, 0, 1, 1]. [2024-01-27 14:46:26,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25" (1/1) ... [2024-01-27 14:46:26,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25" (1/1) ... [2024-01-27 14:46:26,095 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25" (1/1) ... [2024-01-27 14:46:26,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25" (1/1) ... [2024-01-27 14:46:26,099 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25" (1/1) ... [2024-01-27 14:46:26,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25" (1/1) ... [2024-01-27 14:46:26,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:46:26,102 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:46:26,103 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:46:26,103 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:46:26,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25" (1/1) ... [2024-01-27 14:46:26,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:46:26,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:26,124 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 14:46:26,125 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 14:46:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:46:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:46:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 14:46:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:46:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:46:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:46:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 14:46:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 14:46:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-27 14:46:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 14:46:26,153 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 14:46:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 14:46:26,153 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 14:46:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:46:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:46:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:46:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:46:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 14:46:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-27 14:46:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 14:46:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:46:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:46:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:46:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:46:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:46:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 14:46:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-27 14:46:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:46:26,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:46:26,156 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 14:46:26,269 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:46:26,270 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:46:26,495 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:46:26,495 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:46:26,629 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:46:26,631 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-27 14:46:26,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:46:26 BoogieIcfgContainer [2024-01-27 14:46:26,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:46:26,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:46:26,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:46:26,638 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:46:26,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:46:24" (1/4) ... [2024-01-27 14:46:26,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e9c2646 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:46:26, skipping insertion in model container [2024-01-27 14:46:26,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:46:25" (2/4) ... [2024-01-27 14:46:26,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e9c2646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:46:26, skipping insertion in model container [2024-01-27 14:46:26,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:25" (3/4) ... [2024-01-27 14:46:26,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e9c2646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:46:26, skipping insertion in model container [2024-01-27 14:46:26,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:46:26" (4/4) ... [2024-01-27 14:46:26,642 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2024-01-27 14:46:26,655 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:46:26,656 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2024-01-27 14:46:26,656 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:46:26,734 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-27 14:46:26,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 104 transitions, 222 flow [2024-01-27 14:46:26,811 INFO L124 PetriNetUnfolderBase]: 3/102 cut-off events. [2024-01-27 14:46:26,811 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 14:46:26,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 102 events. 3/102 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 251 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2024-01-27 14:46:26,815 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 104 transitions, 222 flow [2024-01-27 14:46:26,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 99 transitions, 210 flow [2024-01-27 14:46:26,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:46:26,833 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;@399330ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:46:26,833 INFO L358 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2024-01-27 14:46:26,836 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:46:26,836 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:46:26,836 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:26,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:26,837 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:46:26,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-27 14:46:26,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:26,844 INFO L85 PathProgramCache]: Analyzing trace with hash 11186, now seen corresponding path program 1 times [2024-01-27 14:46:26,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:26,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960860391] [2024-01-27 14:46:26,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:26,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:27,040 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 14:46:27,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:27,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960860391] [2024-01-27 14:46:27,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960860391] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:46:27,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:46:27,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:46:27,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403665528] [2024-01-27 14:46:27,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:46:27,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:46:27,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:27,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:46:27,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:46:27,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 104 [2024-01-27 14:46:27,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 14:46:27,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:27,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 104 [2024-01-27 14:46:27,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:27,391 INFO L124 PetriNetUnfolderBase]: 618/1731 cut-off events. [2024-01-27 14:46:27,392 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-01-27 14:46:27,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2910 conditions, 1731 events. 618/1731 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 13126 event pairs, 329 based on Foata normal form. 165/1533 useless extension candidates. Maximal degree in co-relation 2674. Up to 683 conditions per place. [2024-01-27 14:46:27,405 INFO L140 encePairwiseOnDemand]: 81/104 looper letters, 54 selfloop transitions, 7 changer transitions 0/114 dead transitions. [2024-01-27 14:46:27,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 114 transitions, 368 flow [2024-01-27 14:46:27,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:46:27,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:46:27,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 243 transitions. [2024-01-27 14:46:27,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7788461538461539 [2024-01-27 14:46:27,416 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 210 flow. Second operand 3 states and 243 transitions. [2024-01-27 14:46:27,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 114 transitions, 368 flow [2024-01-27 14:46:27,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 114 transitions, 356 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-27 14:46:27,422 INFO L231 Difference]: Finished difference. Result has 102 places, 100 transitions, 266 flow [2024-01-27 14:46:27,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=102, PETRI_TRANSITIONS=100} [2024-01-27 14:46:27,426 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -2 predicate places. [2024-01-27 14:46:27,426 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 100 transitions, 266 flow [2024-01-27 14:46:27,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 14:46:27,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:27,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 14:46:27,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:46:27,427 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-27 14:46:27,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:27,428 INFO L85 PathProgramCache]: Analyzing trace with hash 347136, now seen corresponding path program 1 times [2024-01-27 14:46:27,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:27,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927402421] [2024-01-27 14:46:27,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:27,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:27,474 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 14:46:27,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:27,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927402421] [2024-01-27 14:46:27,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927402421] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:46:27,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:46:27,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:46:27,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71738773] [2024-01-27 14:46:27,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:46:27,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:46:27,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:27,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:46:27,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:46:27,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 104 [2024-01-27 14:46:27,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 100 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 14:46:27,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:27,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 104 [2024-01-27 14:46:27,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:27,548 INFO L124 PetriNetUnfolderBase]: 46/174 cut-off events. [2024-01-27 14:46:27,548 INFO L125 PetriNetUnfolderBase]: For 136/144 co-relation queries the response was YES. [2024-01-27 14:46:27,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 174 events. 46/174 cut-off events. For 136/144 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 692 event pairs, 33 based on Foata normal form. 69/202 useless extension candidates. Maximal degree in co-relation 285. Up to 79 conditions per place. [2024-01-27 14:46:27,550 INFO L140 encePairwiseOnDemand]: 90/104 looper letters, 14 selfloop transitions, 1 changer transitions 0/39 dead transitions. [2024-01-27 14:46:27,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 39 transitions, 124 flow [2024-01-27 14:46:27,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:46:27,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:46:27,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2024-01-27 14:46:27,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5897435897435898 [2024-01-27 14:46:27,555 INFO L175 Difference]: Start difference. First operand has 102 places, 100 transitions, 266 flow. Second operand 3 states and 184 transitions. [2024-01-27 14:46:27,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 39 transitions, 124 flow [2024-01-27 14:46:27,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 39 transitions, 118 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 14:46:27,557 INFO L231 Difference]: Finished difference. Result has 44 places, 39 transitions, 90 flow [2024-01-27 14:46:27,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=44, PETRI_TRANSITIONS=39} [2024-01-27 14:46:27,557 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -60 predicate places. [2024-01-27 14:46:27,558 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 90 flow [2024-01-27 14:46:27,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 14:46:27,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:27,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:27,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:46:27,558 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-27 14:46:27,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:27,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1552937278, now seen corresponding path program 1 times [2024-01-27 14:46:27,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:27,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477761099] [2024-01-27 14:46:27,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:27,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:27,706 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 14:46:27,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:27,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477761099] [2024-01-27 14:46:27,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477761099] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:46:27,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:46:27,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:46:27,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525307830] [2024-01-27 14:46:27,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:46:27,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:46:27,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:27,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:46:27,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:46:27,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 104 [2024-01-27 14:46:27,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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 14:46:27,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:27,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 104 [2024-01-27 14:46:27,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:27,771 INFO L124 PetriNetUnfolderBase]: 56/211 cut-off events. [2024-01-27 14:46:27,771 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-27 14:46:27,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 211 events. 56/211 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 893 event pairs, 20 based on Foata normal form. 24/209 useless extension candidates. Maximal degree in co-relation 340. Up to 76 conditions per place. [2024-01-27 14:46:27,773 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 17 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2024-01-27 14:46:27,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 41 transitions, 135 flow [2024-01-27 14:46:27,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:46:27,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:46:27,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 294 transitions. [2024-01-27 14:46:27,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7067307692307693 [2024-01-27 14:46:27,774 INFO L175 Difference]: Start difference. First operand has 44 places, 39 transitions, 90 flow. Second operand 4 states and 294 transitions. [2024-01-27 14:46:27,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 41 transitions, 135 flow [2024-01-27 14:46:27,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 41 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 14:46:27,776 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 87 flow [2024-01-27 14:46:27,776 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=87, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2024-01-27 14:46:27,776 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -61 predicate places. [2024-01-27 14:46:27,776 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 87 flow [2024-01-27 14:46:27,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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 14:46:27,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:27,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:27,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:46:27,777 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-27 14:46:27,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:27,778 INFO L85 PathProgramCache]: Analyzing trace with hash 2017882330, now seen corresponding path program 1 times [2024-01-27 14:46:27,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:27,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550126732] [2024-01-27 14:46:27,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:27,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:27,868 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 14:46:27,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:27,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550126732] [2024-01-27 14:46:27,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550126732] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:46:27,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:46:27,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:46:27,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60253452] [2024-01-27 14:46:27,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:46:27,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:46:27,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:27,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:46:27,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:46:27,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 104 [2024-01-27 14:46:27,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 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 14:46:27,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:27,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 104 [2024-01-27 14:46:27,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:27,940 INFO L124 PetriNetUnfolderBase]: 59/198 cut-off events. [2024-01-27 14:46:27,940 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-01-27 14:46:27,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 198 events. 59/198 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 781 event pairs, 20 based on Foata normal form. 22/210 useless extension candidates. Maximal degree in co-relation 331. Up to 64 conditions per place. [2024-01-27 14:46:27,941 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 19 selfloop transitions, 2 changer transitions 0/40 dead transitions. [2024-01-27 14:46:27,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 40 transitions, 137 flow [2024-01-27 14:46:27,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:46:27,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:46:27,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2024-01-27 14:46:27,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7115384615384616 [2024-01-27 14:46:27,943 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 87 flow. Second operand 4 states and 296 transitions. [2024-01-27 14:46:27,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 40 transitions, 137 flow [2024-01-27 14:46:27,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 40 transitions, 134 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:46:27,944 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 82 flow [2024-01-27 14:46:27,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2024-01-27 14:46:27,945 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -63 predicate places. [2024-01-27 14:46:27,945 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 82 flow [2024-01-27 14:46:27,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 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 14:46:27,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:27,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:27,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:46:27,946 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-01-27 14:46:27,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:27,946 INFO L85 PathProgramCache]: Analyzing trace with hash -254730526, now seen corresponding path program 1 times [2024-01-27 14:46:27,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:27,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875197662] [2024-01-27 14:46:27,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:27,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:46:27,961 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 14:46:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:46:27,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 14:46:27,985 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 14:46:27,986 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 68 remaining) [2024-01-27 14:46:27,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 68 remaining) [2024-01-27 14:46:27,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 68 remaining) [2024-01-27 14:46:27,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 68 remaining) [2024-01-27 14:46:27,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 68 remaining) [2024-01-27 14:46:27,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 68 remaining) [2024-01-27 14:46:27,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 68 remaining) [2024-01-27 14:46:27,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 68 remaining) [2024-01-27 14:46:27,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 68 remaining) [2024-01-27 14:46:27,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 68 remaining) [2024-01-27 14:46:27,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 68 remaining) [2024-01-27 14:46:27,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 68 remaining) [2024-01-27 14:46:27,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 68 remaining) [2024-01-27 14:46:27,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 68 remaining) [2024-01-27 14:46:27,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 68 remaining) [2024-01-27 14:46:27,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 68 remaining) [2024-01-27 14:46:27,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 68 remaining) [2024-01-27 14:46:27,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 68 remaining) [2024-01-27 14:46:27,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 68 remaining) [2024-01-27 14:46:27,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 68 remaining) [2024-01-27 14:46:27,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 68 remaining) [2024-01-27 14:46:27,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 68 remaining) [2024-01-27 14:46:27,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 68 remaining) [2024-01-27 14:46:27,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 68 remaining) [2024-01-27 14:46:27,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 68 remaining) [2024-01-27 14:46:27,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 68 remaining) [2024-01-27 14:46:27,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 68 remaining) [2024-01-27 14:46:27,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 68 remaining) [2024-01-27 14:46:27,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 68 remaining) [2024-01-27 14:46:27,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 68 remaining) [2024-01-27 14:46:27,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 68 remaining) [2024-01-27 14:46:27,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 68 remaining) [2024-01-27 14:46:27,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 68 remaining) [2024-01-27 14:46:27,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 68 remaining) [2024-01-27 14:46:27,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 68 remaining) [2024-01-27 14:46:27,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 68 remaining) [2024-01-27 14:46:27,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (31 of 68 remaining) [2024-01-27 14:46:27,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 68 remaining) [2024-01-27 14:46:27,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 68 remaining) [2024-01-27 14:46:27,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 68 remaining) [2024-01-27 14:46:27,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 68 remaining) [2024-01-27 14:46:27,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 68 remaining) [2024-01-27 14:46:27,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 68 remaining) [2024-01-27 14:46:27,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 68 remaining) [2024-01-27 14:46:27,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 68 remaining) [2024-01-27 14:46:27,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 68 remaining) [2024-01-27 14:46:27,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 68 remaining) [2024-01-27 14:46:27,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 68 remaining) [2024-01-27 14:46:27,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 68 remaining) [2024-01-27 14:46:27,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 68 remaining) [2024-01-27 14:46:27,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 68 remaining) [2024-01-27 14:46:27,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 68 remaining) [2024-01-27 14:46:27,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 68 remaining) [2024-01-27 14:46:27,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 68 remaining) [2024-01-27 14:46:27,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 68 remaining) [2024-01-27 14:46:27,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 68 remaining) [2024-01-27 14:46:28,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 68 remaining) [2024-01-27 14:46:28,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 68 remaining) [2024-01-27 14:46:28,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 68 remaining) [2024-01-27 14:46:28,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 68 remaining) [2024-01-27 14:46:28,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 68 remaining) [2024-01-27 14:46:28,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 68 remaining) [2024-01-27 14:46:28,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 68 remaining) [2024-01-27 14:46:28,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 68 remaining) [2024-01-27 14:46:28,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 68 remaining) [2024-01-27 14:46:28,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 68 remaining) [2024-01-27 14:46:28,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 68 remaining) [2024-01-27 14:46:28,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 68 remaining) [2024-01-27 14:46:28,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:46:28,014 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-01-27 14:46:28,020 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 14:46:28,020 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:46:28,040 INFO L503 ceAbstractionStarter]: Automizer considered 35 witness invariants [2024-01-27 14:46:28,040 INFO L504 ceAbstractionStarter]: WitnessConsidered=35 [2024-01-27 14:46:28,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:46:28 BasicIcfg [2024-01-27 14:46:28,041 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:46:28,041 INFO L158 Benchmark]: Toolchain (without parser) took 2595.00ms. Allocated memory was 155.2MB in the beginning and 213.9MB in the end (delta: 58.7MB). Free memory was 96.7MB in the beginning and 100.7MB in the end (delta: -4.0MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2024-01-27 14:46:28,042 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 107.0MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:46:28,042 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:46:28,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.50ms. Allocated memory is still 155.2MB. Free memory was 96.3MB in the beginning and 103.2MB in the end (delta: -6.9MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2024-01-27 14:46:28,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.60ms. Allocated memory is still 155.2MB. Free memory was 103.2MB in the beginning and 100.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:46:28,043 INFO L158 Benchmark]: Boogie Preprocessor took 45.06ms. Allocated memory is still 155.2MB. Free memory was 100.9MB in the beginning and 97.7MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:46:28,043 INFO L158 Benchmark]: RCFGBuilder took 530.55ms. Allocated memory is still 155.2MB. Free memory was 97.7MB in the beginning and 110.8MB in the end (delta: -13.1MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2024-01-27 14:46:28,043 INFO L158 Benchmark]: TraceAbstraction took 1405.59ms. Allocated memory was 155.2MB in the beginning and 213.9MB in the end (delta: 58.7MB). Free memory was 110.5MB in the beginning and 100.7MB in the end (delta: 9.8MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. [2024-01-27 14:46:28,044 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 107.0MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 543.50ms. Allocated memory is still 155.2MB. Free memory was 96.3MB in the beginning and 103.2MB in the end (delta: -6.9MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.60ms. Allocated memory is still 155.2MB. Free memory was 103.2MB in the beginning and 100.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.06ms. Allocated memory is still 155.2MB. Free memory was 100.9MB in the beginning and 97.7MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 530.55ms. Allocated memory is still 155.2MB. Free memory was 97.7MB in the beginning and 110.8MB in the end (delta: -13.1MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1405.59ms. Allocated memory was 155.2MB in the beginning and 213.9MB in the end (delta: 58.7MB). Free memory was 110.5MB in the beginning and 100.7MB in the end (delta: 9.8MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 946]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L930] 0 int num; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L931] 0 pthread_mutex_t m; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L932] 0 pthread_cond_t empty, full; [L955] 0 pthread_t t1, t2; VAL [empty={4:0}, full={5:0}, m={3:0}, num=0, t1={6:0}, t2={7:0}] [L956] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[0]]]] [L956] 0 num = 1 VAL [empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L957] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[1]]]] [L958] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[1]]]] VAL [empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L959] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[1]]]] VAL [empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L960] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[1]]]] [L960] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L961] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1, t1={6:0}, t2={7:0}] [L945] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[num],IntegerLiteral[1]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[num]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] COND FALSE 2 !(num == 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] [L946] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[num],IntegerLiteral[0]]]] VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, full={5:0}, m={3:0}, num=1] - UnprovableResult [Line: 935]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 938]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 938]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 940]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 941]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 949]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 949]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 950]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 951]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 956]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 957]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 958]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 959]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 960]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 966]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 961]: 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: 960]: 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 5 procedures, 182 locations, 68 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: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 323 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 165 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 280 IncrementalHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 47 mSDtfsCounter, 280 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=1, InterpolantAutomatonStates: 14, 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, 0.3s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 14:46:28,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE