./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/test-easy7.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27552612 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/test-easy7.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-2755261-m [2024-01-26 15:22:37,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 15:22:37,547 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-26 15:22:37,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 15:22:37,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 15:22:37,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 15:22:37,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 15:22:37,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 15:22:37,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-26 15:22:37,591 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-26 15:22:37,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 15:22:37,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 15:22:37,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 15:22:37,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 15:22:37,594 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 15:22:37,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 15:22:37,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 15:22:37,595 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 15:22:37,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 15:22:37,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 15:22:37,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 15:22:37,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 15:22:37,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 15:22:37,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 15:22:37,597 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-26 15:22:37,597 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 15:22:37,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 15:22:37,597 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 15:22:37,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 15:22:37,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 15:22:37,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-26 15:22:37,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 15:22:37,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:22:37,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 15:22:37,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 15:22:37,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 15:22:37,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 15:22:37,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 15:22:37,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 15:22:37,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-26 15:22:37,601 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 15:22:37,602 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-26 15:22:37,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-26 15:22:37,602 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-26 15:22:37,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 15:22:37,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 15:22:37,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 15:22:37,878 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-26 15:22:37,879 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-26 15:22:37,880 INFO L431 ainManager$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/test-easy7.wvr.yml/witness.yml [2024-01-26 15:22:37,963 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 15:22:37,963 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 15:22:37,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c [2024-01-26 15:22:39,154 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 15:22:39,363 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 15:22:39,364 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy7.wvr.c [2024-01-26 15:22:39,373 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90af437e5/462f0f860b7a4d7686244b11a11c7e24/FLAGf0ed75752 [2024-01-26 15:22:39,389 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90af437e5/462f0f860b7a4d7686244b11a11c7e24 [2024-01-26 15:22:39,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 15:22:39,391 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 15:22:39,394 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 15:22:39,394 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 15:22:39,399 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 15:22:39,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:22:37" (1/2) ... [2024-01-26 15:22:39,402 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75db7701 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:22:39, skipping insertion in model container [2024-01-26 15:22:39,402 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:22:37" (1/2) ... [2024-01-26 15:22:39,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2430061c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:22:39, skipping insertion in model container [2024-01-26 15:22:39,404 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:22:39" (2/2) ... [2024-01-26 15:22:39,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75db7701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39, skipping insertion in model container [2024-01-26 15:22:39,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:22:39" (2/2) ... [2024-01-26 15:22:39,405 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-26 15:22:39,423 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-26 15:22:39,425 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-26 15:22:39,425 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-26 15:22:39,425 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-26 15:22:39,425 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-26 15:22:39,425 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] x1 == 0U [2024-01-26 15:22:39,426 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (long long )x1 - (long long )x2 >= 0LL [2024-01-26 15:22:39,426 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] x2 == 0U [2024-01-26 15:22:39,427 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (long long )x1 + (long long )x2 >= 0LL [2024-01-26 15:22:39,427 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (0LL - (long long )x1) + (long long )x2 >= 0LL [2024-01-26 15:22:39,427 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (0LL - (long long )x1) - (long long )x2 >= 0LL [2024-01-26 15:22:39,427 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-26 15:22:39,427 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-26 15:22:39,427 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-26 15:22:39,428 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] x2 == 0U [2024-01-26 15:22:39,428 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-26 15:22:39,428 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-26 15:22:39,428 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-26 15:22:39,428 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] x2 == 0U [2024-01-26 15:22:39,448 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 15:22:39,629 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy7.wvr.c[1898,1911] [2024-01-26 15:22:39,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:22:39,643 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 [2024-01-26 15:22:39,709 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy7.wvr.c[1898,1911] [2024-01-26 15:22:39,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:22:39,732 INFO L206 MainTranslator]: Completed translation [2024-01-26 15:22:39,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39 WrapperNode [2024-01-26 15:22:39,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 15:22:39,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 15:22:39,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 15:22:39,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 15:22:39,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39" (1/1) ... [2024-01-26 15:22:39,764 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39" (1/1) ... [2024-01-26 15:22:39,805 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2024-01-26 15:22:39,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 15:22:39,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 15:22:39,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 15:22:39,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 15:22:39,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39" (1/1) ... [2024-01-26 15:22:39,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39" (1/1) ... [2024-01-26 15:22:39,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39" (1/1) ... [2024-01-26 15:22:39,831 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-26 15:22:39,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39" (1/1) ... [2024-01-26 15:22:39,832 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39" (1/1) ... [2024-01-26 15:22:39,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39" (1/1) ... [2024-01-26 15:22:39,839 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39" (1/1) ... [2024-01-26 15:22:39,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39" (1/1) ... [2024-01-26 15:22:39,841 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39" (1/1) ... [2024-01-26 15:22:39,843 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 15:22:39,844 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 15:22:39,844 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 15:22:39,845 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 15:22:39,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39" (1/1) ... [2024-01-26 15:22:39,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:22:39,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-26 15:22:39,871 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) [2024-01-26 15:22:39,882 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 [2024-01-26 15:22:39,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 15:22:39,905 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-26 15:22:39,905 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-26 15:22:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-26 15:22:39,906 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-26 15:22:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-26 15:22:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-26 15:22:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-26 15:22:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 15:22:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-26 15:22:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-26 15:22:39,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-26 15:22:39,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 15:22:39,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 15:22:39,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-26 15:22:39,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-26 15:22:39,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-26 15:22:39,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 15:22:39,909 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 15:22:39,989 INFO L244 CfgBuilder]: Building ICFG [2024-01-26 15:22:39,991 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 15:22:40,250 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-26 15:22:40,251 INFO L293 CfgBuilder]: Performing block encoding [2024-01-26 15:22:40,366 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 15:22:40,367 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-26 15:22:40,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:22:40 BoogieIcfgContainer [2024-01-26 15:22:40,367 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 15:22:40,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 15:22:40,372 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 15:22:40,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 15:22:40,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:22:37" (1/4) ... [2024-01-26 15:22:40,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee5992 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:22:40, skipping insertion in model container [2024-01-26 15:22:40,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 03:22:39" (2/4) ... [2024-01-26 15:22:40,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee5992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:22:40, skipping insertion in model container [2024-01-26 15:22:40,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:39" (3/4) ... [2024-01-26 15:22:40,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee5992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:22:40, skipping insertion in model container [2024-01-26 15:22:40,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:22:40" (4/4) ... [2024-01-26 15:22:40,378 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy7.wvr.c [2024-01-26 15:22:40,394 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 15:22:40,394 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2024-01-26 15:22:40,395 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 15:22:40,447 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-26 15:22:40,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 51 transitions, 116 flow [2024-01-26 15:22:40,531 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2024-01-26 15:22:40,532 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-26 15:22:40,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 49 events. 0/49 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 68 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-26 15:22:40,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 51 transitions, 116 flow [2024-01-26 15:22:40,537 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 48 transitions, 108 flow [2024-01-26 15:22:40,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-26 15:22:40,552 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;@2c96046, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 15:22:40,552 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-01-26 15:22:40,554 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-26 15:22:40,554 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-26 15:22:40,555 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:22:40,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:22:40,555 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-26 15:22:40,556 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-01-26 15:22:40,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:22:40,559 INFO L85 PathProgramCache]: Analyzing trace with hash 8563, now seen corresponding path program 1 times [2024-01-26 15:22:40,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:22:40,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616483933] [2024-01-26 15:22:40,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:22:40,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:22:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:22:40,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:22:40,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:22:40,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616483933] [2024-01-26 15:22:40,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616483933] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:22:40,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:22:40,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:22:40,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296680031] [2024-01-26 15:22:40,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:22:40,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:22:40,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:22:40,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:22:40,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:22:40,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 51 [2024-01-26 15:22:40,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-01-26 15:22:40,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:22:40,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 51 [2024-01-26 15:22:40,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:22:41,070 INFO L124 PetriNetUnfolderBase]: 123/310 cut-off events. [2024-01-26 15:22:41,070 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-01-26 15:22:41,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 310 events. 123/310 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1412 event pairs, 123 based on Foata normal form. 5/309 useless extension candidates. Maximal degree in co-relation 499. Up to 239 conditions per place. [2024-01-26 15:22:41,077 INFO L140 encePairwiseOnDemand]: 43/51 looper letters, 21 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2024-01-26 15:22:41,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 42 transitions, 142 flow [2024-01-26 15:22:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:22:41,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:22:41,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-01-26 15:22:41,089 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6013071895424836 [2024-01-26 15:22:41,091 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 108 flow. Second operand 3 states and 92 transitions. [2024-01-26 15:22:41,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 42 transitions, 142 flow [2024-01-26 15:22:41,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 42 transitions, 134 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-26 15:22:41,096 INFO L231 Difference]: Finished difference. Result has 47 places, 42 transitions, 92 flow [2024-01-26 15:22:41,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=47, PETRI_TRANSITIONS=42} [2024-01-26 15:22:41,101 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -8 predicate places. [2024-01-26 15:22:41,102 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 42 transitions, 92 flow [2024-01-26 15:22:41,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-01-26 15:22:41,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:22:41,102 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:22:41,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 15:22:41,103 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-01-26 15:22:41,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:22:41,104 INFO L85 PathProgramCache]: Analyzing trace with hash 724911810, now seen corresponding path program 1 times [2024-01-26 15:22:41,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:22:41,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059997486] [2024-01-26 15:22:41,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:22:41,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:22:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:22:41,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:22:41,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:22:41,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059997486] [2024-01-26 15:22:41,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059997486] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:22:41,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:22:41,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:22:41,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720139252] [2024-01-26 15:22:41,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:22:41,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:22:41,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:22:41,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:22:41,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:22:41,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 51 [2024-01-26 15:22:41,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 42 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-01-26 15:22:41,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:22:41,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 51 [2024-01-26 15:22:41,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:22:41,276 INFO L124 PetriNetUnfolderBase]: 141/349 cut-off events. [2024-01-26 15:22:41,276 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-26 15:22:41,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 349 events. 141/349 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1622 event pairs, 123 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 619. Up to 237 conditions per place. [2024-01-26 15:22:41,280 INFO L140 encePairwiseOnDemand]: 46/51 looper letters, 29 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2024-01-26 15:22:41,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 49 transitions, 173 flow [2024-01-26 15:22:41,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:22:41,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:22:41,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-01-26 15:22:41,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6339869281045751 [2024-01-26 15:22:41,282 INFO L175 Difference]: Start difference. First operand has 47 places, 42 transitions, 92 flow. Second operand 3 states and 97 transitions. [2024-01-26 15:22:41,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 49 transitions, 173 flow [2024-01-26 15:22:41,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 49 transitions, 169 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:22:41,284 INFO L231 Difference]: Finished difference. Result has 46 places, 41 transitions, 94 flow [2024-01-26 15:22:41,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=46, PETRI_TRANSITIONS=41} [2024-01-26 15:22:41,285 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -9 predicate places. [2024-01-26 15:22:41,285 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 94 flow [2024-01-26 15:22:41,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-01-26 15:22:41,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:22:41,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:22:41,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 15:22:41,286 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-01-26 15:22:41,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:22:41,287 INFO L85 PathProgramCache]: Analyzing trace with hash 752485377, now seen corresponding path program 1 times [2024-01-26 15:22:41,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:22:41,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679420286] [2024-01-26 15:22:41,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:22:41,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:22:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:22:41,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:22:41,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:22:41,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679420286] [2024-01-26 15:22:41,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679420286] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:22:41,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:22:41,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:22:41,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078008330] [2024-01-26 15:22:41,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:22:41,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:22:41,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:22:41,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:22:41,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:22:41,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 51 [2024-01-26 15:22:41,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-01-26 15:22:41,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:22:41,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 51 [2024-01-26 15:22:41,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:22:41,537 INFO L124 PetriNetUnfolderBase]: 123/281 cut-off events. [2024-01-26 15:22:41,538 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:22:41,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 281 events. 123/281 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1148 event pairs, 5 based on Foata normal form. 14/294 useless extension candidates. Maximal degree in co-relation 258. Up to 216 conditions per place. [2024-01-26 15:22:41,542 INFO L140 encePairwiseOnDemand]: 44/51 looper letters, 28 selfloop transitions, 2 changer transitions 0/44 dead transitions. [2024-01-26 15:22:41,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 44 transitions, 161 flow [2024-01-26 15:22:41,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:22:41,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:22:41,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2024-01-26 15:22:41,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6029411764705882 [2024-01-26 15:22:41,548 INFO L175 Difference]: Start difference. First operand has 46 places, 41 transitions, 94 flow. Second operand 4 states and 123 transitions. [2024-01-26 15:22:41,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 44 transitions, 161 flow [2024-01-26 15:22:41,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 44 transitions, 153 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:22:41,552 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 80 flow [2024-01-26 15:22:41,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=39, 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=80, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2024-01-26 15:22:41,554 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -13 predicate places. [2024-01-26 15:22:41,554 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 80 flow [2024-01-26 15:22:41,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-01-26 15:22:41,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:22:41,555 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:22:41,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-26 15:22:41,555 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-01-26 15:22:41,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:22:41,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1583951171, now seen corresponding path program 1 times [2024-01-26 15:22:41,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:22:41,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691087001] [2024-01-26 15:22:41,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:22:41,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:22:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-26 15:22:41,579 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-26 15:22:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-26 15:22:41,622 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-26 15:22:41,623 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-26 15:22:41,627 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 32 remaining) [2024-01-26 15:22:41,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 32 remaining) [2024-01-26 15:22:41,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 32 remaining) [2024-01-26 15:22:41,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 32 remaining) [2024-01-26 15:22:41,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 32 remaining) [2024-01-26 15:22:41,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 32 remaining) [2024-01-26 15:22:41,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 32 remaining) [2024-01-26 15:22:41,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 32 remaining) [2024-01-26 15:22:41,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 32 remaining) [2024-01-26 15:22:41,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 32 remaining) [2024-01-26 15:22:41,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 32 remaining) [2024-01-26 15:22:41,632 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 32 remaining) [2024-01-26 15:22:41,632 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 32 remaining) [2024-01-26 15:22:41,632 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 32 remaining) [2024-01-26 15:22:41,632 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 32 remaining) [2024-01-26 15:22:41,632 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 32 remaining) [2024-01-26 15:22:41,633 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 32 remaining) [2024-01-26 15:22:41,633 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 32 remaining) [2024-01-26 15:22:41,633 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 32 remaining) [2024-01-26 15:22:41,633 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (12 of 32 remaining) [2024-01-26 15:22:41,634 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 32 remaining) [2024-01-26 15:22:41,634 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 32 remaining) [2024-01-26 15:22:41,634 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 32 remaining) [2024-01-26 15:22:41,634 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 32 remaining) [2024-01-26 15:22:41,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 32 remaining) [2024-01-26 15:22:41,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 32 remaining) [2024-01-26 15:22:41,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 32 remaining) [2024-01-26 15:22:41,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 32 remaining) [2024-01-26 15:22:41,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 32 remaining) [2024-01-26 15:22:41,637 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 32 remaining) [2024-01-26 15:22:41,637 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 32 remaining) [2024-01-26 15:22:41,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 32 remaining) [2024-01-26 15:22:41,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-26 15:22:41,641 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-01-26 15:22:41,649 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 15:22:41,650 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 15:22:41,676 INFO L503 ceAbstractionStarter]: Automizer considered 18 witness invariants [2024-01-26 15:22:41,676 INFO L504 ceAbstractionStarter]: WitnessConsidered=18 [2024-01-26 15:22:41,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 03:22:41 BasicIcfg [2024-01-26 15:22:41,677 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 15:22:41,678 INFO L158 Benchmark]: Toolchain (without parser) took 2286.78ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 87.6MB in the beginning and 65.5MB in the end (delta: 22.1MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2024-01-26 15:22:41,678 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 98.6MB. Free memory was 65.4MB in the beginning and 65.3MB in the end (delta: 81.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:22:41,678 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:22:41,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.87ms. Allocated memory is still 138.4MB. Free memory was 87.6MB in the beginning and 109.2MB in the end (delta: -21.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-01-26 15:22:41,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.92ms. Allocated memory is still 138.4MB. Free memory was 109.2MB in the beginning and 107.5MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-26 15:22:41,681 INFO L158 Benchmark]: Boogie Preprocessor took 37.40ms. Allocated memory is still 138.4MB. Free memory was 107.5MB in the beginning and 105.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:22:41,683 INFO L158 Benchmark]: RCFGBuilder took 522.99ms. Allocated memory is still 138.4MB. Free memory was 105.4MB in the beginning and 78.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-01-26 15:22:41,683 INFO L158 Benchmark]: TraceAbstraction took 1305.95ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 77.3MB in the beginning and 65.5MB in the end (delta: 11.9MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. [2024-01-26 15:22:41,685 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 0.19ms. Allocated memory is still 98.6MB. Free memory was 65.4MB in the beginning and 65.3MB in the end (delta: 81.1kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.87ms. Allocated memory is still 138.4MB. Free memory was 87.6MB in the beginning and 109.2MB in the end (delta: -21.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.92ms. Allocated memory is still 138.4MB. Free memory was 109.2MB in the beginning and 107.5MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.40ms. Allocated memory is still 138.4MB. Free memory was 107.5MB in the beginning and 105.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 522.99ms. Allocated memory is still 138.4MB. Free memory was 105.4MB in the beginning and 78.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1305.95ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 77.3MB in the beginning and 65.5MB in the end (delta: 11.9MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 43]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int x1, x2; [L59] 0 pthread_t t1, t2; VAL [t1={3:0}, t2={5:0}, x1=0, x2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x2]]],IntegerLiteral[0LL]]]] VAL [t1={3:0}, t2={5:0}, x1=0, x2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x2]]],IntegerLiteral[0LL]]]] VAL [t1={3:0}, t2={5:0}, x1=0, x2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[x1]],CastExpression[ACSLType[long long],IdentifierExpression[x2]]],IntegerLiteral[0LL]]]] VAL [t1={3:0}, t2={5:0}, x1=0, x2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x2],IntegerLiteral[0U]]]] VAL [t1={3:0}, t2={5:0}, x1=0, x2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[x1]],CastExpression[ACSLType[long long],IdentifierExpression[x2]]],IntegerLiteral[0LL]]]] VAL [t1={3:0}, t2={5:0}, x1=0, x2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]]]] [L61] 0 x1 = __VERIFIER_nondet_uint() [L62] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x2],IntegerLiteral[0U]]]] [L62] 0 x2 = __VERIFIER_nondet_uint() [L63] CALL 0 assume_abort_if_not(x1 == x2) [L35] COND FALSE 0 !(!cond) [L63] RET 0 assume_abort_if_not(x1 == x2) [L66] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, t1={3:0}, t2={5:0}, x1=0, x2=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] [L41] 1 x2++ VAL [_argptr={0:0}, _argptr={0:0}, x1=0, x2=1] [L42] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] [L42] 1 x2++ VAL [_argptr={0:0}, _argptr={0:0}, x1=0, x2=2] [L43] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x2],IntegerLiteral[0U]]]] VAL [_argptr={0:0}, _argptr={0:0}, x1=0, x2=2] - UnprovableResult [Line: 41]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 72]: 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: 66]: 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: 67]: 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, 80 locations, 32 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: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 170 IncrementalHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 11 mSDtfsCounter, 170 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2024-01-26 15:22:41,722 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