./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/singleton.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/singleton.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec 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/singleton.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/singleton.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-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:22:50,506 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:22:50,566 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:22:50,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:22:50,570 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:22:50,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:22:50,593 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:22:50,594 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:22:50,594 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:22:50,598 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:22:50,598 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:22:50,598 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:22:50,599 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:22:50,600 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:22:50,600 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:22:50,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:22:50,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:22:50,601 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:22:50,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:22:50,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:22:50,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:22:50,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:22:50,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:22:50,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:22:50,603 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:22:50,603 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:22:50,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:22:50,603 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:22:50,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:22:50,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:22:50,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:22:50,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:22:50,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:22:50,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:22:50,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:22:50,606 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:22:50,606 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:22:50,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:22:50,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:22:50,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:22:50,606 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:22:50,607 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:22:50,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:22:50,607 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:22:50,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:22:50,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:22:50,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:22:50,870 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:22:50,871 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:22:50,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2024-02-07 19:22:51,942 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:22:52,249 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:22:52,250 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i [2024-02-07 19:22:52,269 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aedbb8115/e30ac0827e32446cabbf5c0c01ad028a/FLAGd83a8aa2a [2024-02-07 19:22:52,282 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aedbb8115/e30ac0827e32446cabbf5c0c01ad028a [2024-02-07 19:22:52,284 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:22:52,284 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:22:52,285 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/singleton.yml/witness.yml [2024-02-07 19:22:52,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:22:52,340 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:22:52,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:22:52,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:22:52,345 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:22:52,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:22:52" (1/2) ... [2024-02-07 19:22:52,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37139e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:22:52, skipping insertion in model container [2024-02-07 19:22:52,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:22:52" (1/2) ... [2024-02-07 19:22:52,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1bceb355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:22:52, skipping insertion in model container [2024-02-07 19:22:52,348 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:22:52" (2/2) ... [2024-02-07 19:22:52,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37139e1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52, skipping insertion in model container [2024-02-07 19:22:52,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:22:52" (2/2) ... [2024-02-07 19:22:52,349 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:22:52,376 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:22:52,377 INFO L76 edCorrectnessWitness]: Location invariant before [L1123-L1123] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-07 19:22:52,424 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:22:52,807 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/singleton.i[55547,55560] [2024-02-07 19:22:52,824 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:22:52,830 INFO L206 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 19:22:52,891 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/singleton.i[55547,55560] [2024-02-07 19:22:52,897 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:22:52,942 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:22:52,943 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52 WrapperNode [2024-02-07 19:22:52,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:22:52,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:22:52,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:22:52,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:22:52,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52" (1/1) ... [2024-02-07 19:22:52,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52" (1/1) ... [2024-02-07 19:22:52,978 INFO L138 Inliner]: procedures = 324, calls = 51, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2024-02-07 19:22:52,978 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:22:52,979 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:22:52,979 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:22:52,979 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:22:52,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52" (1/1) ... [2024-02-07 19:22:52,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52" (1/1) ... [2024-02-07 19:22:52,991 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52" (1/1) ... [2024-02-07 19:22:53,002 INFO L175 MemorySlicer]: Split 17 memory accesses to 8 slices as follows [2, 2, 2, 2, 2, 3, 2, 2]. 18 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0, 0, 0, 0, 0]. The 8 writes are split as follows [1, 0, 1, 1, 1, 2, 1, 1]. [2024-02-07 19:22:53,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52" (1/1) ... [2024-02-07 19:22:53,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52" (1/1) ... [2024-02-07 19:22:53,009 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52" (1/1) ... [2024-02-07 19:22:53,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52" (1/1) ... [2024-02-07 19:22:53,012 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52" (1/1) ... [2024-02-07 19:22:53,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52" (1/1) ... [2024-02-07 19:22:53,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:22:53,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:22:53,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:22:53,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:22:53,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52" (1/1) ... [2024-02-07 19:22:53,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:22:53,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:22:53,067 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) [2024-02-07 19:22:53,080 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 [2024-02-07 19:22:53,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 19:22:53,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:22:53,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:22:53,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 19:22:53,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 19:22:53,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 19:22:53,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 19:22:53,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 19:22:53,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-07 19:22:53,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-07 19:22:53,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-02-07 19:22:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-02-07 19:22:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-02-07 19:22:53,131 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-02-07 19:22:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-07 19:22:53,131 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-07 19:22:53,132 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-07 19:22:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-07 19:22:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-07 19:22:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-07 19:22:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:22:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:22:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:22:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 19:22:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 19:22:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-07 19:22:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-02-07 19:22:53,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-02-07 19:22:53,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-02-07 19:22:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:22:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:22:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:22:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:22:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 19:22:53,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 19:22:53,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-07 19:22:53,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-02-07 19:22:53,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-02-07 19:22:53,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:22:53,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:22:53,141 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:22:53,252 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:22:53,254 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:22:53,476 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:22:53,477 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:22:53,599 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:22:53,599 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 19:22:53,600 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:22:53 BoogieIcfgContainer [2024-02-07 19:22:53,601 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:22:53,603 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:22:53,603 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:22:53,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:22:53,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:22:52" (1/4) ... [2024-02-07 19:22:53,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791f7f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:22:53, skipping insertion in model container [2024-02-07 19:22:53,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:22:52" (2/4) ... [2024-02-07 19:22:53,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791f7f1c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:22:53, skipping insertion in model container [2024-02-07 19:22:53,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:22:52" (3/4) ... [2024-02-07 19:22:53,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791f7f1c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:22:53, skipping insertion in model container [2024-02-07 19:22:53,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:22:53" (4/4) ... [2024-02-07 19:22:53,609 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2024-02-07 19:22:53,622 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:22:53,622 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-02-07 19:22:53,622 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:22:53,704 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-02-07 19:22:53,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 82 transitions, 261 flow [2024-02-07 19:22:53,771 INFO L124 PetriNetUnfolderBase]: 6/51 cut-off events. [2024-02-07 19:22:53,772 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-02-07 19:22:53,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 51 events. 6/51 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 60. Up to 3 conditions per place. [2024-02-07 19:22:53,775 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 82 transitions, 261 flow [2024-02-07 19:22:53,778 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 48 transitions, 147 flow [2024-02-07 19:22:53,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:22:53,794 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;@3d706107, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:22:53,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-02-07 19:22:53,813 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:22:53,813 INFO L124 PetriNetUnfolderBase]: 5/44 cut-off events. [2024-02-07 19:22:53,813 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-02-07 19:22:53,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:22:53,814 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:22:53,815 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-02-07 19:22:53,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:22:53,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1746979384, now seen corresponding path program 1 times [2024-02-07 19:22:53,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:22:53,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529750747] [2024-02-07 19:22:53,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:22:53,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:22:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:22:54,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:22:54,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:22:54,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529750747] [2024-02-07 19:22:54,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529750747] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:22:54,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:22:54,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:22:54,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060100682] [2024-02-07 19:22:54,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:22:54,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:22:54,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:22:54,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:22:54,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:22:54,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 84 [2024-02-07 19:22:54,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-02-07 19:22:54,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:22:54,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 84 [2024-02-07 19:22:54,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:22:54,718 INFO L124 PetriNetUnfolderBase]: 1659/2375 cut-off events. [2024-02-07 19:22:54,718 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2024-02-07 19:22:54,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5034 conditions, 2375 events. 1659/2375 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 10432 event pairs, 1577 based on Foata normal form. 0/2269 useless extension candidates. Maximal degree in co-relation 5010. Up to 2318 conditions per place. [2024-02-07 19:22:54,734 INFO L140 encePairwiseOnDemand]: 82/84 looper letters, 41 selfloop transitions, 1 changer transitions 0/47 dead transitions. [2024-02-07 19:22:54,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 47 transitions, 229 flow [2024-02-07 19:22:54,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:22:54,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:22:54,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2024-02-07 19:22:54,745 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3611111111111111 [2024-02-07 19:22:54,746 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 147 flow. Second operand 3 states and 91 transitions. [2024-02-07 19:22:54,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 47 transitions, 229 flow [2024-02-07 19:22:54,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 47 transitions, 195 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-02-07 19:22:54,760 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 113 flow [2024-02-07 19:22:54,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2024-02-07 19:22:54,764 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -11 predicate places. [2024-02-07 19:22:54,765 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 113 flow [2024-02-07 19:22:54,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-02-07 19:22:54,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:22:54,765 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:22:54,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:22:54,766 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-02-07 19:22:54,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:22:54,767 INFO L85 PathProgramCache]: Analyzing trace with hash 594282906, now seen corresponding path program 1 times [2024-02-07 19:22:54,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:22:54,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488913041] [2024-02-07 19:22:54,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:22:54,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:22:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:22:55,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:22:55,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:22:55,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488913041] [2024-02-07 19:22:55,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488913041] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:22:55,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:22:55,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 19:22:55,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179322136] [2024-02-07 19:22:55,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:22:55,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:22:55,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:22:55,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:22:55,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:22:55,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 84 [2024-02-07 19:22:55,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 113 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2024-02-07 19:22:55,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:22:55,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 84 [2024-02-07 19:22:55,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:22:55,371 INFO L124 PetriNetUnfolderBase]: 2651/3778 cut-off events. [2024-02-07 19:22:55,371 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-02-07 19:22:55,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7631 conditions, 3778 events. 2651/3778 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 17146 event pairs, 879 based on Foata normal form. 1/3633 useless extension candidates. Maximal degree in co-relation 7617. Up to 2329 conditions per place. [2024-02-07 19:22:55,381 INFO L140 encePairwiseOnDemand]: 78/84 looper letters, 54 selfloop transitions, 4 changer transitions 13/77 dead transitions. [2024-02-07 19:22:55,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 77 transitions, 329 flow [2024-02-07 19:22:55,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:22:55,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:22:55,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2024-02-07 19:22:55,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40476190476190477 [2024-02-07 19:22:55,385 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 113 flow. Second operand 4 states and 136 transitions. [2024-02-07 19:22:55,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 77 transitions, 329 flow [2024-02-07 19:22:55,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 77 transitions, 327 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:22:55,388 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 144 flow [2024-02-07 19:22:55,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2024-02-07 19:22:55,388 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-02-07 19:22:55,388 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 144 flow [2024-02-07 19:22:55,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2024-02-07 19:22:55,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:22:55,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:22:55,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:22:55,389 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-02-07 19:22:55,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:22:55,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1329535876, now seen corresponding path program 2 times [2024-02-07 19:22:55,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:22:55,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022362303] [2024-02-07 19:22:55,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:22:55,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:22:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:22:55,464 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 19:22:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:22:55,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 19:22:55,530 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 19:22:55,531 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (12 of 13 remaining) [2024-02-07 19:22:55,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 13 remaining) [2024-02-07 19:22:55,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 13 remaining) [2024-02-07 19:22:55,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 13 remaining) [2024-02-07 19:22:55,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2024-02-07 19:22:55,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 13 remaining) [2024-02-07 19:22:55,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 13 remaining) [2024-02-07 19:22:55,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2024-02-07 19:22:55,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-02-07 19:22:55,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2024-02-07 19:22:55,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2024-02-07 19:22:55,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2024-02-07 19:22:55,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 13 remaining) [2024-02-07 19:22:55,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 19:22:55,538 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2024-02-07 19:22:55,542 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 19:22:55,542 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 19:22:55,603 INFO L503 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-02-07 19:22:55,603 INFO L504 ceAbstractionStarter]: WitnessConsidered=1 [2024-02-07 19:22:55,604 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:22:55 BasicIcfg [2024-02-07 19:22:55,604 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 19:22:55,605 INFO L158 Benchmark]: Toolchain (without parser) took 3264.48ms. Allocated memory was 138.4MB in the beginning and 232.8MB in the end (delta: 94.4MB). Free memory was 105.0MB in the beginning and 146.9MB in the end (delta: -41.9MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2024-02-07 19:22:55,605 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 138.4MB. Free memory was 113.7MB in the beginning and 113.6MB in the end (delta: 85.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:22:55,605 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 138.4MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:22:55,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 602.18ms. Allocated memory is still 138.4MB. Free memory was 105.0MB in the beginning and 67.3MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-02-07 19:22:55,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.63ms. Allocated memory is still 138.4MB. Free memory was 67.3MB in the beginning and 64.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:22:55,606 INFO L158 Benchmark]: Boogie Preprocessor took 36.71ms. Allocated memory is still 138.4MB. Free memory was 64.8MB in the beginning and 62.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:22:55,606 INFO L158 Benchmark]: RCFGBuilder took 584.72ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 62.0MB in the beginning and 108.3MB in the end (delta: -46.3MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-02-07 19:22:55,607 INFO L158 Benchmark]: TraceAbstraction took 2001.00ms. Allocated memory was 167.8MB in the beginning and 232.8MB in the end (delta: 65.0MB). Free memory was 107.4MB in the beginning and 146.9MB in the end (delta: -39.5MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2024-02-07 19:22:55,608 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 138.4MB. Free memory was 113.7MB in the beginning and 113.6MB in the end (delta: 85.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 138.4MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 602.18ms. Allocated memory is still 138.4MB. Free memory was 105.0MB in the beginning and 67.3MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.63ms. Allocated memory is still 138.4MB. Free memory was 67.3MB in the beginning and 64.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.71ms. Allocated memory is still 138.4MB. Free memory was 64.8MB in the beginning and 62.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 584.72ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 62.0MB in the beginning and 108.3MB in the end (delta: -46.3MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2001.00ms. Allocated memory was 167.8MB in the beginning and 232.8MB in the end (delta: 65.0MB). Free memory was 107.4MB in the beginning and 146.9MB in the end (delta: -39.5MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1123]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1124] 0 char *v; [L1161] 0 pthread_t t; [L1162] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, t={5:0}, v={0:0}] [L1163] 0 \read(t) VAL [arg={0:0}, v={0:0}] [L1146] 1 pthread_t t1, t2, t3, t4, t5; [L1147] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={0:0}] [L1148] 1 \read(t1) VAL [arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={0:0}] [L1127] 2 v = malloc(sizeof(char)) [L1128] 2 return 0; [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1149] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1150] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1151] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1152] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1153] 1 \read(t2) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1133] 3 v[0] = 'X' VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1135] 3 return 0; [L1133] 5 v[0] = 'X' VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1135] 5 return 0; [L1133] 6 v[0] = 'X' VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1135] 6 return 0; [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1154] 1 \read(t3) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1140] 4 v[0] = 'Y' VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1142] 4 return 0; [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1155] 1 \read(t4) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1156] 1 \read(t5) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={6:0}, t2={3:0}, t3={9:0}, t4={8:0}, t5={7:0}, v={-1:0}] [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1163] FCALL, JOIN 1 pthread_join(t, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t={5:0}, v={-1:0}] [L1164] EXPR 0 v[0] [L1164] CALL 0 __VERIFIER_assert(v[0] == 'X') [L1123] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[expression]],BinaryExpression[COMPLEQ,IdentifierExpression[expression],IntegerLiteral[1]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[expression],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[expression],IntegerLiteral[1]]]]]] VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={-1:0}] [L1123] COND TRUE 0 !expression VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={-1:0}] [L1123] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={-1:0}] - UnprovableResult [Line: 1152]: 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: 1151]: 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: 1149]: 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: 1150]: 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: 1147]: 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: 1123]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1162]: 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: 1151]: 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: 1152]: 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: 1147]: 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: 1149]: 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: 1150]: 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 11 procedures, 95 locations, 13 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: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 236 IncrementalHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 1 mSDtfsCounter, 236 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2024-02-07 19:22:55,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE