./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_38-traces-ex-4-switch_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cb09d658 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/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_38-traces-ex-4-switch_true.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-cb09d65-m [2024-01-27 23:06:56,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:06:56,733 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:06:56,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:06:56,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:06:56,762 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:06:56,763 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:06:56,763 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:06:56,764 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:06:56,767 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:06:56,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:06:56,767 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:06:56,768 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:06:56,769 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:06:56,769 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:06:56,769 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:06:56,769 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:06:56,770 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:06:56,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:06:56,770 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:06:56,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:06:56,770 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:06:56,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:06:56,771 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:06:56,771 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:06:56,771 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:06:56,771 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:06:56,772 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:06:56,772 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:06:56,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:06:56,773 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:06:56,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:06:56,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:06:56,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:06:56,774 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:06:56,774 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:06:56,774 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:06:56,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:06:56,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:06:56,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:06:56,775 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:06:56,775 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:06:56,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:06:56,775 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:06:56,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:06:56,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:06:56,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:06:56,999 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:06:57,000 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:06:57,001 INFO L431 ainManager$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/13-privatized_38-traces-ex-4-switch_true.yml/witness.yml [2024-01-27 23:06:57,103 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:06:57,104 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:06:57,104 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i [2024-01-27 23:06:58,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:06:58,318 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:06:58,318 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i [2024-01-27 23:06:58,333 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e437790d/72a3da5b26744799bc6ad7c886f3da8d/FLAG841b25e6e [2024-01-27 23:06:58,343 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e437790d/72a3da5b26744799bc6ad7c886f3da8d [2024-01-27 23:06:58,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:06:58,344 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:06:58,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:06:58,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:06:58,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:06:58,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:57" (1/2) ... [2024-01-27 23:06:58,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61bd213a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:58, skipping insertion in model container [2024-01-27 23:06:58,352 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:57" (1/2) ... [2024-01-27 23:06:58,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@47eeb64c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:58, skipping insertion in model container [2024-01-27 23:06:58,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:06:58" (2/2) ... [2024-01-27 23:06:58,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61bd213a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58, skipping insertion in model container [2024-01-27 23:06:58,354 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:06:58" (2/2) ... [2024-01-27 23:06:58,355 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:06:58,379 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:06:58,381 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-27 23:06:58,381 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-27 23:06:58,381 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] g == 2 [2024-01-27 23:06:58,381 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 1 [2024-01-27 23:06:58,381 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-27 23:06:58,382 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-27 23:06:58,382 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] g == 2 [2024-01-27 23:06:58,382 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 2 [2024-01-27 23:06:58,382 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 2 [2024-01-27 23:06:58,382 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g == 2 [2024-01-27 23:06:58,382 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-27 23:06:58,383 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-27 23:06:58,383 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g == 1 [2024-01-27 23:06:58,383 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] g == 2 [2024-01-27 23:06:58,383 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] g == 2 [2024-01-27 23:06:58,383 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g == 2 [2024-01-27 23:06:58,383 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g == 1 [2024-01-27 23:06:58,383 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-27 23:06:58,383 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g == 2 [2024-01-27 23:06:58,384 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-27 23:06:58,384 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-27 23:06:58,384 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] g == 2 [2024-01-27 23:06:58,384 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] g == 2 [2024-01-27 23:06:58,426 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:06:58,598 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i[1095,1108] [2024-01-27 23:06:58,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:06:58,731 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 23:06:58,741 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i[1095,1108] [2024-01-27 23:06:58,741 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 23:06:58,807 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:06:58,837 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:06:58,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58 WrapperNode [2024-01-27 23:06:58,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:06:58,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:06:58,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:06:58,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:06:58,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58" (1/1) ... [2024-01-27 23:06:58,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58" (1/1) ... [2024-01-27 23:06:58,888 INFO L138 Inliner]: procedures = 163, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-01-27 23:06:58,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:06:58,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:06:58,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:06:58,890 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:06:58,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58" (1/1) ... [2024-01-27 23:06:58,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58" (1/1) ... [2024-01-27 23:06:58,903 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58" (1/1) ... [2024-01-27 23:06:58,922 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 5, 1]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-01-27 23:06:58,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58" (1/1) ... [2024-01-27 23:06:58,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58" (1/1) ... [2024-01-27 23:06:58,930 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58" (1/1) ... [2024-01-27 23:06:58,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58" (1/1) ... [2024-01-27 23:06:58,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58" (1/1) ... [2024-01-27 23:06:58,936 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58" (1/1) ... [2024-01-27 23:06:58,937 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:06:58,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:06:58,940 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:06:58,940 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:06:58,940 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58" (1/1) ... [2024-01-27 23:06:58,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:06:58,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:06:58,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 23:06:58,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 23:06:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:06:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:06:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:06:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 23:06:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 23:06:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:06:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:06:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-27 23:06:58,995 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-27 23:06:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:06:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:06:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:06:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:06:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 23:06:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 23:06:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:06:58,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:06:58,997 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 23:06:59,099 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:06:59,100 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:06:59,341 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:06:59,342 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:06:59,412 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:06:59,413 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 23:06:59,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:06:59 BoogieIcfgContainer [2024-01-27 23:06:59,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:06:59,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:06:59,415 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:06:59,417 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:06:59,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:57" (1/4) ... [2024-01-27 23:06:59,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718ee930 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:06:59, skipping insertion in model container [2024-01-27 23:06:59,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:06:58" (2/4) ... [2024-01-27 23:06:59,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718ee930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:06:59, skipping insertion in model container [2024-01-27 23:06:59,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:58" (3/4) ... [2024-01-27 23:06:59,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718ee930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:06:59, skipping insertion in model container [2024-01-27 23:06:59,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:06:59" (4/4) ... [2024-01-27 23:06:59,421 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_38-traces-ex-4-switch_true.i [2024-01-27 23:06:59,435 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:06:59,436 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-01-27 23:06:59,436 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:06:59,487 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 23:06:59,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 148 flow [2024-01-27 23:06:59,559 INFO L124 PetriNetUnfolderBase]: 1/71 cut-off events. [2024-01-27 23:06:59,560 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:06:59,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2024-01-27 23:06:59,564 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 72 transitions, 148 flow [2024-01-27 23:06:59,567 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 71 transitions, 145 flow [2024-01-27 23:06:59,573 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:06:59,578 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;@491f2ce3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:06:59,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-01-27 23:06:59,580 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:06:59,580 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 23:06:59,580 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:06:59,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:59,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 23:06:59,581 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-27 23:06:59,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:59,585 INFO L85 PathProgramCache]: Analyzing trace with hash 8518, now seen corresponding path program 1 times [2024-01-27 23:06:59,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:59,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162825488] [2024-01-27 23:06:59,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:59,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:59,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:59,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:59,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162825488] [2024-01-27 23:06:59,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162825488] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:59,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:59,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:06:59,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459539550] [2024-01-27 23:06:59,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:59,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:06:59,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:59,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:06:59,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:06:59,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 72 [2024-01-27 23:06:59,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 71 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:06:59,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:59,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 72 [2024-01-27 23:06:59,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:00,089 INFO L124 PetriNetUnfolderBase]: 217/827 cut-off events. [2024-01-27 23:07:00,089 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:07:00,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1357 conditions, 827 events. 217/827 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5161 event pairs, 130 based on Foata normal form. 49/779 useless extension candidates. Maximal degree in co-relation 1346. Up to 367 conditions per place. [2024-01-27 23:07:00,095 INFO L140 encePairwiseOnDemand]: 52/72 looper letters, 41 selfloop transitions, 7 changer transitions 0/79 dead transitions. [2024-01-27 23:07:00,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 79 transitions, 257 flow [2024-01-27 23:07:00,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:07:00,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:07:00,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 158 transitions. [2024-01-27 23:07:00,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7314814814814815 [2024-01-27 23:07:00,111 INFO L175 Difference]: Start difference. First operand has 74 places, 71 transitions, 145 flow. Second operand 3 states and 158 transitions. [2024-01-27 23:07:00,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 79 transitions, 257 flow [2024-01-27 23:07:00,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 79 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 23:07:00,117 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 194 flow [2024-01-27 23:07:00,121 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=72, PETRI_TRANSITIONS=70} [2024-01-27 23:07:00,124 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -2 predicate places. [2024-01-27 23:07:00,125 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 194 flow [2024-01-27 23:07:00,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:00,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:00,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 23:07:00,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:07:00,127 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-27 23:07:00,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:00,127 INFO L85 PathProgramCache]: Analyzing trace with hash 254104825, now seen corresponding path program 1 times [2024-01-27 23:07:00,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:00,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021763048] [2024-01-27 23:07:00,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:00,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:00,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:00,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:00,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021763048] [2024-01-27 23:07:00,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021763048] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:00,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:00,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:07:00,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074753010] [2024-01-27 23:07:00,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:00,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:07:00,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:00,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:07:00,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:07:00,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 72 [2024-01-27 23:07:00,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 70 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:00,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:00,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 72 [2024-01-27 23:07:00,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:00,475 INFO L124 PetriNetUnfolderBase]: 128/627 cut-off events. [2024-01-27 23:07:00,475 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2024-01-27 23:07:00,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 627 events. 128/627 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3853 event pairs, 27 based on Foata normal form. 107/711 useless extension candidates. Maximal degree in co-relation 1085. Up to 259 conditions per place. [2024-01-27 23:07:00,478 INFO L140 encePairwiseOnDemand]: 61/72 looper letters, 29 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2024-01-27 23:07:00,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 69 transitions, 256 flow [2024-01-27 23:07:00,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:07:00,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:07:00,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 202 transitions. [2024-01-27 23:07:00,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7013888888888888 [2024-01-27 23:07:00,480 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 194 flow. Second operand 4 states and 202 transitions. [2024-01-27 23:07:00,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 69 transitions, 256 flow [2024-01-27 23:07:00,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 69 transitions, 242 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:00,483 INFO L231 Difference]: Finished difference. Result has 64 places, 61 transitions, 166 flow [2024-01-27 23:07:00,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=64, PETRI_TRANSITIONS=61} [2024-01-27 23:07:00,484 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -10 predicate places. [2024-01-27 23:07:00,484 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 61 transitions, 166 flow [2024-01-27 23:07:00,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:00,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:00,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:07:00,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 23:07:00,485 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-27 23:07:00,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:00,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1878010369, now seen corresponding path program 1 times [2024-01-27 23:07:00,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:00,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389421733] [2024-01-27 23:07:00,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:00,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:00,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:00,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:00,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389421733] [2024-01-27 23:07:00,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389421733] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:00,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:00,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:07:00,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629355591] [2024-01-27 23:07:00,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:00,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:07:00,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:00,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:07:00,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:07:00,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 72 [2024-01-27 23:07:00,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 61 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:00,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:00,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 72 [2024-01-27 23:07:00,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:00,678 INFO L124 PetriNetUnfolderBase]: 236/755 cut-off events. [2024-01-27 23:07:00,678 INFO L125 PetriNetUnfolderBase]: For 116/133 co-relation queries the response was YES. [2024-01-27 23:07:00,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1532 conditions, 755 events. 236/755 cut-off events. For 116/133 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4342 event pairs, 120 based on Foata normal form. 6/728 useless extension candidates. Maximal degree in co-relation 1518. Up to 331 conditions per place. [2024-01-27 23:07:00,681 INFO L140 encePairwiseOnDemand]: 63/72 looper letters, 50 selfloop transitions, 11 changer transitions 8/88 dead transitions. [2024-01-27 23:07:00,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 88 transitions, 370 flow [2024-01-27 23:07:00,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 23:07:00,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 23:07:00,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 221 transitions. [2024-01-27 23:07:00,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6138888888888889 [2024-01-27 23:07:00,683 INFO L175 Difference]: Start difference. First operand has 64 places, 61 transitions, 166 flow. Second operand 5 states and 221 transitions. [2024-01-27 23:07:00,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 88 transitions, 370 flow [2024-01-27 23:07:00,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 88 transitions, 367 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:00,685 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 183 flow [2024-01-27 23:07:00,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=183, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2024-01-27 23:07:00,686 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -10 predicate places. [2024-01-27 23:07:00,686 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 183 flow [2024-01-27 23:07:00,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:00,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:00,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:07:00,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 23:07:00,687 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-27 23:07:00,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:00,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1668519583, now seen corresponding path program 1 times [2024-01-27 23:07:00,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:00,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006819495] [2024-01-27 23:07:00,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:00,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:00,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:00,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:00,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006819495] [2024-01-27 23:07:00,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006819495] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:00,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:00,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 23:07:00,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165060802] [2024-01-27 23:07:00,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:00,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:07:00,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:00,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:07:00,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:07:00,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 72 [2024-01-27 23:07:00,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:00,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:00,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 72 [2024-01-27 23:07:00,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:00,816 INFO L124 PetriNetUnfolderBase]: 163/545 cut-off events. [2024-01-27 23:07:00,816 INFO L125 PetriNetUnfolderBase]: For 194/196 co-relation queries the response was YES. [2024-01-27 23:07:00,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1137 conditions, 545 events. 163/545 cut-off events. For 194/196 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2780 event pairs, 121 based on Foata normal form. 62/593 useless extension candidates. Maximal degree in co-relation 1123. Up to 268 conditions per place. [2024-01-27 23:07:00,818 INFO L140 encePairwiseOnDemand]: 63/72 looper letters, 30 selfloop transitions, 3 changer transitions 5/59 dead transitions. [2024-01-27 23:07:00,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 59 transitions, 241 flow [2024-01-27 23:07:00,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:07:00,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:07:00,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 158 transitions. [2024-01-27 23:07:00,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7314814814814815 [2024-01-27 23:07:00,820 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 183 flow. Second operand 3 states and 158 transitions. [2024-01-27 23:07:00,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 59 transitions, 241 flow [2024-01-27 23:07:00,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 59 transitions, 241 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 23:07:00,822 INFO L231 Difference]: Finished difference. Result has 63 places, 50 transitions, 151 flow [2024-01-27 23:07:00,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=63, PETRI_TRANSITIONS=50} [2024-01-27 23:07:00,823 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -11 predicate places. [2024-01-27 23:07:00,823 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 151 flow [2024-01-27 23:07:00,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:00,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:00,824 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:07:00,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 23:07:00,824 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-27 23:07:00,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:00,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1479771018, now seen corresponding path program 1 times [2024-01-27 23:07:00,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:00,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206669779] [2024-01-27 23:07:00,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:00,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:00,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:00,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206669779] [2024-01-27 23:07:00,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206669779] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:00,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:00,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:07:00,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810458902] [2024-01-27 23:07:00,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:00,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:07:00,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:00,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:07:00,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:07:00,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 72 [2024-01-27 23:07:00,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:00,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:00,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 72 [2024-01-27 23:07:00,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:00,948 INFO L124 PetriNetUnfolderBase]: 33/184 cut-off events. [2024-01-27 23:07:00,948 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-01-27 23:07:00,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 184 events. 33/184 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 616 event pairs, 13 based on Foata normal form. 10/187 useless extension candidates. Maximal degree in co-relation 343. Up to 49 conditions per place. [2024-01-27 23:07:00,949 INFO L140 encePairwiseOnDemand]: 65/72 looper letters, 14 selfloop transitions, 6 changer transitions 6/54 dead transitions. [2024-01-27 23:07:00,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 54 transitions, 205 flow [2024-01-27 23:07:00,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:07:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:07:00,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 182 transitions. [2024-01-27 23:07:00,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8425925925925926 [2024-01-27 23:07:00,951 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 151 flow. Second operand 3 states and 182 transitions. [2024-01-27 23:07:00,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 54 transitions, 205 flow [2024-01-27 23:07:00,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 54 transitions, 181 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-01-27 23:07:00,955 INFO L231 Difference]: Finished difference. Result has 55 places, 46 transitions, 133 flow [2024-01-27 23:07:00,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=55, PETRI_TRANSITIONS=46} [2024-01-27 23:07:00,957 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -19 predicate places. [2024-01-27 23:07:00,958 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 46 transitions, 133 flow [2024-01-27 23:07:00,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:00,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:00,958 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] [2024-01-27 23:07:00,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 23:07:00,958 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-27 23:07:00,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:00,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1065785080, now seen corresponding path program 1 times [2024-01-27 23:07:00,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:00,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938423198] [2024-01-27 23:07:00,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:00,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:07:00,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 23:07:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:07:01,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 23:07:01,010 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 23:07:01,011 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 39 remaining) [2024-01-27 23:07:01,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 39 remaining) [2024-01-27 23:07:01,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 39 remaining) [2024-01-27 23:07:01,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (35 of 39 remaining) [2024-01-27 23:07:01,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 39 remaining) [2024-01-27 23:07:01,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 39 remaining) [2024-01-27 23:07:01,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 39 remaining) [2024-01-27 23:07:01,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 39 remaining) [2024-01-27 23:07:01,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 39 remaining) [2024-01-27 23:07:01,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 39 remaining) [2024-01-27 23:07:01,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 39 remaining) [2024-01-27 23:07:01,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 39 remaining) [2024-01-27 23:07:01,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 39 remaining) [2024-01-27 23:07:01,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 39 remaining) [2024-01-27 23:07:01,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 39 remaining) [2024-01-27 23:07:01,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 39 remaining) [2024-01-27 23:07:01,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 39 remaining) [2024-01-27 23:07:01,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 39 remaining) [2024-01-27 23:07:01,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 39 remaining) [2024-01-27 23:07:01,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 39 remaining) [2024-01-27 23:07:01,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 39 remaining) [2024-01-27 23:07:01,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 39 remaining) [2024-01-27 23:07:01,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 39 remaining) [2024-01-27 23:07:01,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 39 remaining) [2024-01-27 23:07:01,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 39 remaining) [2024-01-27 23:07:01,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 39 remaining) [2024-01-27 23:07:01,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 39 remaining) [2024-01-27 23:07:01,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 39 remaining) [2024-01-27 23:07:01,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 39 remaining) [2024-01-27 23:07:01,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 39 remaining) [2024-01-27 23:07:01,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 39 remaining) [2024-01-27 23:07:01,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 39 remaining) [2024-01-27 23:07:01,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 39 remaining) [2024-01-27 23:07:01,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 39 remaining) [2024-01-27 23:07:01,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 39 remaining) [2024-01-27 23:07:01,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 39 remaining) [2024-01-27 23:07:01,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 39 remaining) [2024-01-27 23:07:01,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 39 remaining) [2024-01-27 23:07:01,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 39 remaining) [2024-01-27 23:07:01,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 23:07:01,019 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-01-27 23:07:01,023 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 23:07:01,023 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 23:07:01,059 INFO L503 ceAbstractionStarter]: Automizer considered 21 witness invariants [2024-01-27 23:07:01,060 INFO L504 ceAbstractionStarter]: WitnessConsidered=21 [2024-01-27 23:07:01,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:07:01 BasicIcfg [2024-01-27 23:07:01,061 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 23:07:01,061 INFO L158 Benchmark]: Toolchain (without parser) took 2717.43ms. Allocated memory was 144.7MB in the beginning and 199.2MB in the end (delta: 54.5MB). Free memory was 72.1MB in the beginning and 107.1MB in the end (delta: -35.0MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2024-01-27 23:07:01,063 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:07:01,063 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 144.7MB. Free memory is still 119.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:07:01,064 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.64ms. Allocated memory is still 144.7MB. Free memory was 72.0MB in the beginning and 104.3MB in the end (delta: -32.3MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-01-27 23:07:01,065 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.47ms. Allocated memory is still 144.7MB. Free memory was 104.3MB in the beginning and 102.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 23:07:01,065 INFO L158 Benchmark]: Boogie Preprocessor took 48.71ms. Allocated memory is still 144.7MB. Free memory was 102.3MB in the beginning and 100.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:07:01,065 INFO L158 Benchmark]: RCFGBuilder took 474.93ms. Allocated memory is still 144.7MB. Free memory was 100.2MB in the beginning and 71.9MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-01-27 23:07:01,066 INFO L158 Benchmark]: TraceAbstraction took 1646.41ms. Allocated memory was 144.7MB in the beginning and 199.2MB in the end (delta: 54.5MB). Free memory was 71.4MB in the beginning and 107.1MB in the end (delta: -35.8MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2024-01-27 23:07:01,068 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 0.14ms. Allocated memory is still 113.2MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 144.7MB. Free memory is still 119.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.64ms. Allocated memory is still 144.7MB. Free memory was 72.0MB in the beginning and 104.3MB in the end (delta: -32.3MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.47ms. Allocated memory is still 144.7MB. Free memory was 104.3MB in the beginning and 102.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.71ms. Allocated memory is still 144.7MB. Free memory was 102.3MB in the beginning and 100.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 474.93ms. Allocated memory is still 144.7MB. Free memory was 100.2MB in the beginning and 71.9MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1646.41ms. Allocated memory was 144.7MB in the beginning and 199.2MB in the end (delta: 54.5MB). Free memory was 71.4MB in the beginning and 107.1MB in the end (delta: -35.8MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 699]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L681] 0 int g = 2; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; VAL [A={3:0}, B={4:0}, g=2, id={5:0}] [L697] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[2]]]] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=2, id={5:0}] [L685] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=2] [L686] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[2]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=2] [L686] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=2] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[2]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=2] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L687] 1 g = 1 VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=1] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=1] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[1]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=1] [L699] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[2]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=1, id={5:0}] - UnprovableResult [Line: 697]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 19]: 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: 701]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 697]: 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: 685]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 119 locations, 39 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: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 299 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 185 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 359 IncrementalHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 22 mSDtfsCounter, 359 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred in iteration=1, InterpolantAutomatonStates: 18, 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, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-27 23:07:01,107 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