./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 ab2e0ac4 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-ab2e0ac-m [2024-01-29 14:16:45,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:16:45,092 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:16:45,096 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:16:45,097 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:16:45,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:16:45,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:16:45,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:16:45,122 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:16:45,125 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:16:45,125 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:16:45,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:16:45,126 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:16:45,127 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:16:45,127 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:16:45,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:16:45,128 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:16:45,128 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:16:45,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:16:45,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:16:45,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:16:45,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:16:45,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:16:45,129 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:16:45,130 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:16:45,130 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:16:45,130 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:16:45,130 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:16:45,131 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:16:45,131 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:16:45,132 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:16:45,132 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:16:45,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:16:45,132 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:16:45,132 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:16:45,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:16:45,133 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:16:45,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:16:45,133 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:16:45,133 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:16:45,133 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:16:45,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:16:45,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:16:45,134 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:16:45,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:16:45,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:16:45,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:16:45,349 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:16:45,350 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:16:45,351 INFO L431 ainManager$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 [2024-01-29 14:16:45,451 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:16:45,451 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:16:45,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i [2024-01-29 14:16:46,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:16:46,611 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:16:46,613 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_38-traces-ex-4-switch_true.i [2024-01-29 14:16:46,630 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3569ab60/b071d936c99b4abfb998f6359a6d1e47/FLAG673525f2a [2024-01-29 14:16:46,640 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3569ab60/b071d936c99b4abfb998f6359a6d1e47 [2024-01-29 14:16:46,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:16:46,642 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:16:46,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:16:46,644 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:16:46,647 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:16:46,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:45" (1/2) ... [2024-01-29 14:16:46,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d80818 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:46, skipping insertion in model container [2024-01-29 14:16:46,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:45" (1/2) ... [2024-01-29 14:16:46,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7f51bce1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:46, skipping insertion in model container [2024-01-29 14:16:46,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:16:46" (2/2) ... [2024-01-29 14:16:46,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d80818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:46, skipping insertion in model container [2024-01-29 14:16:46,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:16:46" (2/2) ... [2024-01-29 14:16:46,652 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:16:46,681 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:16:46,682 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 2 [2024-01-29 14:16:46,682 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 2 [2024-01-29 14:16:46,682 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-29 14:16:46,683 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] g == 2 [2024-01-29 14:16:46,683 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-29 14:16:46,684 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] g == 2 [2024-01-29 14:16:46,684 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g == 2 [2024-01-29 14:16:46,684 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-29 14:16:46,684 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-29 14:16:46,684 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g == 1 [2024-01-29 14:16:46,685 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] g == 2 [2024-01-29 14:16:46,685 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-29 14:16:46,685 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] g == 2 [2024-01-29 14:16:46,685 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-29 14:16:46,685 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-29 14:16:46,685 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g == 1 [2024-01-29 14:16:46,685 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] g == 2 [2024-01-29 14:16:46,686 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g == 2 [2024-01-29 14:16:46,686 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 1 [2024-01-29 14:16:46,686 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-29 14:16:46,686 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g == 2 [2024-01-29 14:16:46,686 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] g == 2 [2024-01-29 14:16:46,687 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-29 14:16:46,723 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:16:46,840 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] [2024-01-29 14:16:46,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:16:46,953 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:16:46,962 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] [2024-01-29 14:16:46,962 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 [2024-01-29 14:16:47,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:16:47,069 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:16:47,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:47 WrapperNode [2024-01-29 14:16:47,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:16:47,070 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:16:47,070 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:16:47,070 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:16:47,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:47" (1/1) ... [2024-01-29 14:16:47,085 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:47" (1/1) ... [2024-01-29 14:16:47,098 INFO L138 Inliner]: procedures = 163, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-01-29 14:16:47,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:16:47,100 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:16:47,100 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:16:47,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:16:47,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:47" (1/1) ... [2024-01-29 14:16:47,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:47" (1/1) ... [2024-01-29 14:16:47,109 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:47" (1/1) ... [2024-01-29 14:16:47,118 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]. [2024-01-29 14:16:47,119 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:47" (1/1) ... [2024-01-29 14:16:47,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:47" (1/1) ... [2024-01-29 14:16:47,124 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:47" (1/1) ... [2024-01-29 14:16:47,127 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:47" (1/1) ... [2024-01-29 14:16:47,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:47" (1/1) ... [2024-01-29 14:16:47,133 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:47" (1/1) ... [2024-01-29 14:16:47,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:16:47,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:16:47,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:16:47,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:16:47,145 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:47" (1/1) ... [2024-01-29 14:16:47,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:16:47,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:16:47,174 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) [2024-01-29 14:16:47,180 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 [2024-01-29 14:16:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:16:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:16:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:16:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:16:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 14:16:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:16:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:16:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-29 14:16:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-29 14:16:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:16:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:16:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:16:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:16:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:16:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 14:16:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:16:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:16:47,212 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:16:47,300 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:16:47,302 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:16:47,488 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:16:47,489 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:16:47,600 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:16:47,600 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 14:16:47,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:16:47 BoogieIcfgContainer [2024-01-29 14:16:47,601 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:16:47,603 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:16:47,603 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:16:47,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:16:47,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:45" (1/4) ... [2024-01-29 14:16:47,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e7c09d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:16:47, skipping insertion in model container [2024-01-29 14:16:47,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:16:46" (2/4) ... [2024-01-29 14:16:47,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e7c09d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:16:47, skipping insertion in model container [2024-01-29 14:16:47,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:47" (3/4) ... [2024-01-29 14:16:47,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e7c09d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:16:47, skipping insertion in model container [2024-01-29 14:16:47,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:16:47" (4/4) ... [2024-01-29 14:16:47,614 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_38-traces-ex-4-switch_true.i [2024-01-29 14:16:47,627 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:16:47,628 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-01-29 14:16:47,628 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:16:47,689 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 14:16:47,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 148 flow [2024-01-29 14:16:47,767 INFO L124 PetriNetUnfolderBase]: 1/71 cut-off events. [2024-01-29 14:16:47,767 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:47,770 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. [2024-01-29 14:16:47,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 72 transitions, 148 flow [2024-01-29 14:16:47,773 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 71 transitions, 145 flow [2024-01-29 14:16:47,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:16:47,795 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;@6fb871cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:16:47,795 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-01-29 14:16:47,798 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:16:47,798 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:16:47,798 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:47,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:47,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:16:47,802 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)] === [2024-01-29 14:16:47,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:47,807 INFO L85 PathProgramCache]: Analyzing trace with hash 8518, now seen corresponding path program 1 times [2024-01-29 14:16:47,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:47,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768398780] [2024-01-29 14:16:47,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:47,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:48,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:48,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:48,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768398780] [2024-01-29 14:16:48,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768398780] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:48,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:48,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:16:48,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916345063] [2024-01-29 14:16:48,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:48,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:48,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:48,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:48,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:48,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 72 [2024-01-29 14:16:48,146 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) [2024-01-29 14:16:48,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:48,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 72 [2024-01-29 14:16:48,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:48,325 INFO L124 PetriNetUnfolderBase]: 217/823 cut-off events. [2024-01-29 14:16:48,325 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:48,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1353 conditions, 823 events. 217/823 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5194 event pairs, 130 based on Foata normal form. 49/775 useless extension candidates. Maximal degree in co-relation 1342. Up to 367 conditions per place. [2024-01-29 14:16:48,334 INFO L140 encePairwiseOnDemand]: 52/72 looper letters, 41 selfloop transitions, 7 changer transitions 0/79 dead transitions. [2024-01-29 14:16:48,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 79 transitions, 257 flow [2024-01-29 14:16:48,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:48,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 158 transitions. [2024-01-29 14:16:48,345 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7314814814814815 [2024-01-29 14:16:48,346 INFO L175 Difference]: Start difference. First operand has 74 places, 71 transitions, 145 flow. Second operand 3 states and 158 transitions. [2024-01-29 14:16:48,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 79 transitions, 257 flow [2024-01-29 14:16:48,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 79 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:16:48,351 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 194 flow [2024-01-29 14:16:48,353 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} [2024-01-29 14:16:48,356 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -2 predicate places. [2024-01-29 14:16:48,356 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 194 flow [2024-01-29 14:16:48,357 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) [2024-01-29 14:16:48,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:48,357 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 14:16:48,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:16:48,358 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)] === [2024-01-29 14:16:48,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:48,359 INFO L85 PathProgramCache]: Analyzing trace with hash 254104825, now seen corresponding path program 1 times [2024-01-29 14:16:48,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:48,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629955484] [2024-01-29 14:16:48,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:48,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:48,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:48,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:48,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629955484] [2024-01-29 14:16:48,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629955484] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:48,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:48,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:48,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475760176] [2024-01-29 14:16:48,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:48,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:48,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:48,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:48,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:48,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 72 [2024-01-29 14:16:48,602 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) [2024-01-29 14:16:48,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:48,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 72 [2024-01-29 14:16:48,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:48,728 INFO L124 PetriNetUnfolderBase]: 128/624 cut-off events. [2024-01-29 14:16:48,728 INFO L125 PetriNetUnfolderBase]: For 102/103 co-relation queries the response was YES. [2024-01-29 14:16:48,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1096 conditions, 624 events. 128/624 cut-off events. For 102/103 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3800 event pairs, 27 based on Foata normal form. 107/710 useless extension candidates. Maximal degree in co-relation 1082. Up to 259 conditions per place. [2024-01-29 14:16:48,731 INFO L140 encePairwiseOnDemand]: 61/72 looper letters, 29 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2024-01-29 14:16:48,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 69 transitions, 256 flow [2024-01-29 14:16:48,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:48,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:48,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 202 transitions. [2024-01-29 14:16:48,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7013888888888888 [2024-01-29 14:16:48,737 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 194 flow. Second operand 4 states and 202 transitions. [2024-01-29 14:16:48,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 69 transitions, 256 flow [2024-01-29 14:16:48,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 69 transitions, 242 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:48,762 INFO L231 Difference]: Finished difference. Result has 64 places, 61 transitions, 166 flow [2024-01-29 14:16:48,762 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} [2024-01-29 14:16:48,762 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -10 predicate places. [2024-01-29 14:16:48,768 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 61 transitions, 166 flow [2024-01-29 14:16:48,769 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) [2024-01-29 14:16:48,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:48,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:48,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:16:48,770 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)] === [2024-01-29 14:16:48,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:48,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1878010369, now seen corresponding path program 1 times [2024-01-29 14:16:48,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:48,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034251379] [2024-01-29 14:16:48,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:48,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:48,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:48,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:48,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034251379] [2024-01-29 14:16:48,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034251379] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:48,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:48,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:48,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317025981] [2024-01-29 14:16:48,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:48,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:48,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:48,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:48,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:48,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 72 [2024-01-29 14:16:48,897 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) [2024-01-29 14:16:48,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:48,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 72 [2024-01-29 14:16:48,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:48,990 INFO L124 PetriNetUnfolderBase]: 236/752 cut-off events. [2024-01-29 14:16:48,990 INFO L125 PetriNetUnfolderBase]: For 103/123 co-relation queries the response was YES. [2024-01-29 14:16:48,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1529 conditions, 752 events. 236/752 cut-off events. For 103/123 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4341 event pairs, 120 based on Foata normal form. 6/724 useless extension candidates. Maximal degree in co-relation 1515. Up to 331 conditions per place. [2024-01-29 14:16:48,993 INFO L140 encePairwiseOnDemand]: 63/72 looper letters, 50 selfloop transitions, 11 changer transitions 8/88 dead transitions. [2024-01-29 14:16:48,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 88 transitions, 370 flow [2024-01-29 14:16:48,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:48,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:48,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 221 transitions. [2024-01-29 14:16:48,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6138888888888889 [2024-01-29 14:16:48,994 INFO L175 Difference]: Start difference. First operand has 64 places, 61 transitions, 166 flow. Second operand 5 states and 221 transitions. [2024-01-29 14:16:48,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 88 transitions, 370 flow [2024-01-29 14:16:48,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 88 transitions, 367 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:48,996 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 183 flow [2024-01-29 14:16:48,997 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} [2024-01-29 14:16:48,997 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -10 predicate places. [2024-01-29 14:16:48,997 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 183 flow [2024-01-29 14:16:48,997 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) [2024-01-29 14:16:48,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:48,998 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:48,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:16:48,998 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-29 14:16:48,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:48,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1439296544, now seen corresponding path program 1 times [2024-01-29 14:16:48,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:48,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719503440] [2024-01-29 14:16:48,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:48,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:49,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:49,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:49,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719503440] [2024-01-29 14:16:49,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719503440] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:49,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:49,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:49,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263279704] [2024-01-29 14:16:49,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:49,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:49,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:49,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:49,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:49,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 72 [2024-01-29 14:16:49,057 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) [2024-01-29 14:16:49,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:49,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 72 [2024-01-29 14:16:49,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:49,134 INFO L124 PetriNetUnfolderBase]: 163/545 cut-off events. [2024-01-29 14:16:49,134 INFO L125 PetriNetUnfolderBase]: For 187/193 co-relation queries the response was YES. [2024-01-29 14:16:49,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1137 conditions, 545 events. 163/545 cut-off events. For 187/193 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2779 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. [2024-01-29 14:16:49,136 INFO L140 encePairwiseOnDemand]: 63/72 looper letters, 30 selfloop transitions, 3 changer transitions 5/59 dead transitions. [2024-01-29 14:16:49,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 59 transitions, 241 flow [2024-01-29 14:16:49,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:49,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:49,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 158 transitions. [2024-01-29 14:16:49,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7314814814814815 [2024-01-29 14:16:49,138 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 183 flow. Second operand 3 states and 158 transitions. [2024-01-29 14:16:49,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 59 transitions, 241 flow [2024-01-29 14:16:49,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 59 transitions, 241 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 14:16:49,140 INFO L231 Difference]: Finished difference. Result has 63 places, 50 transitions, 151 flow [2024-01-29 14:16:49,140 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} [2024-01-29 14:16:49,141 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -11 predicate places. [2024-01-29 14:16:49,141 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 151 flow [2024-01-29 14:16:49,141 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) [2024-01-29 14:16:49,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:49,141 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:49,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:16:49,141 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)] === [2024-01-29 14:16:49,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:49,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1479771018, now seen corresponding path program 1 times [2024-01-29 14:16:49,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:49,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793724666] [2024-01-29 14:16:49,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:49,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:49,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:49,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:49,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793724666] [2024-01-29 14:16:49,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793724666] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:49,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:49,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:49,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250641078] [2024-01-29 14:16:49,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:49,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:49,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:49,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:49,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:49,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 72 [2024-01-29 14:16:49,235 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) [2024-01-29 14:16:49,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:49,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 72 [2024-01-29 14:16:49,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:49,281 INFO L124 PetriNetUnfolderBase]: 33/184 cut-off events. [2024-01-29 14:16:49,281 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-01-29 14:16:49,282 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 615 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. [2024-01-29 14:16:49,282 INFO L140 encePairwiseOnDemand]: 65/72 looper letters, 14 selfloop transitions, 6 changer transitions 6/54 dead transitions. [2024-01-29 14:16:49,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 54 transitions, 205 flow [2024-01-29 14:16:49,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:49,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:49,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 182 transitions. [2024-01-29 14:16:49,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8425925925925926 [2024-01-29 14:16:49,284 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 151 flow. Second operand 3 states and 182 transitions. [2024-01-29 14:16:49,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 54 transitions, 205 flow [2024-01-29 14:16:49,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 54 transitions, 181 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-01-29 14:16:49,286 INFO L231 Difference]: Finished difference. Result has 55 places, 46 transitions, 133 flow [2024-01-29 14:16:49,287 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} [2024-01-29 14:16:49,289 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -19 predicate places. [2024-01-29 14:16:49,289 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 46 transitions, 133 flow [2024-01-29 14:16:49,289 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) [2024-01-29 14:16:49,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:49,289 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] [2024-01-29 14:16:49,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:16:49,290 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)] === [2024-01-29 14:16:49,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:49,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1065785080, now seen corresponding path program 1 times [2024-01-29 14:16:49,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:49,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956840158] [2024-01-29 14:16:49,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:49,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:16:49,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:16:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:16:49,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:16:49,336 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:16:49,337 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 39 remaining) [2024-01-29 14:16:49,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 39 remaining) [2024-01-29 14:16:49,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 39 remaining) [2024-01-29 14:16:49,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (35 of 39 remaining) [2024-01-29 14:16:49,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 39 remaining) [2024-01-29 14:16:49,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 39 remaining) [2024-01-29 14:16:49,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 39 remaining) [2024-01-29 14:16:49,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 39 remaining) [2024-01-29 14:16:49,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 39 remaining) [2024-01-29 14:16:49,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 39 remaining) [2024-01-29 14:16:49,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 39 remaining) [2024-01-29 14:16:49,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 39 remaining) [2024-01-29 14:16:49,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 39 remaining) [2024-01-29 14:16:49,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 39 remaining) [2024-01-29 14:16:49,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 39 remaining) [2024-01-29 14:16:49,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 39 remaining) [2024-01-29 14:16:49,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 39 remaining) [2024-01-29 14:16:49,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 39 remaining) [2024-01-29 14:16:49,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 39 remaining) [2024-01-29 14:16:49,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 39 remaining) [2024-01-29 14:16:49,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 39 remaining) [2024-01-29 14:16:49,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 39 remaining) [2024-01-29 14:16:49,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 39 remaining) [2024-01-29 14:16:49,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 39 remaining) [2024-01-29 14:16:49,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 39 remaining) [2024-01-29 14:16:49,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 39 remaining) [2024-01-29 14:16:49,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 39 remaining) [2024-01-29 14:16:49,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 39 remaining) [2024-01-29 14:16:49,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 39 remaining) [2024-01-29 14:16:49,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 39 remaining) [2024-01-29 14:16:49,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 39 remaining) [2024-01-29 14:16:49,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 39 remaining) [2024-01-29 14:16:49,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 39 remaining) [2024-01-29 14:16:49,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 39 remaining) [2024-01-29 14:16:49,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 39 remaining) [2024-01-29 14:16:49,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 39 remaining) [2024-01-29 14:16:49,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 39 remaining) [2024-01-29 14:16:49,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 39 remaining) [2024-01-29 14:16:49,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 39 remaining) [2024-01-29 14:16:49,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:16:49,346 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-01-29 14:16:49,350 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:16:49,351 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:16:49,372 INFO L503 ceAbstractionStarter]: Automizer considered 21 witness invariants [2024-01-29 14:16:49,373 INFO L504 ceAbstractionStarter]: WitnessConsidered=21 [2024-01-29 14:16:49,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:16:49 BasicIcfg [2024-01-29 14:16:49,373 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:16:49,374 INFO L158 Benchmark]: Toolchain (without parser) took 2732.17ms. Allocated memory was 174.1MB in the beginning and 237.0MB in the end (delta: 62.9MB). Free memory was 141.8MB in the beginning and 175.2MB in the end (delta: -33.3MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2024-01-29 14:16:49,374 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:49,374 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 125.8MB. Free memory was 97.5MB in the beginning and 97.4MB in the end (delta: 103.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:49,374 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.06ms. Allocated memory is still 174.1MB. Free memory was 141.2MB in the beginning and 118.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:49,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.83ms. Allocated memory is still 174.1MB. Free memory was 118.1MB in the beginning and 116.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:49,375 INFO L158 Benchmark]: Boogie Preprocessor took 36.30ms. Allocated memory is still 174.1MB. Free memory was 116.2MB in the beginning and 114.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:49,375 INFO L158 Benchmark]: RCFGBuilder took 465.07ms. Allocated memory is still 174.1MB. Free memory was 113.9MB in the beginning and 137.9MB in the end (delta: -24.0MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2024-01-29 14:16:49,375 INFO L158 Benchmark]: TraceAbstraction took 1770.06ms. Allocated memory was 174.1MB in the beginning and 237.0MB in the end (delta: 62.9MB). Free memory was 137.9MB in the beginning and 175.2MB in the end (delta: -37.2MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2024-01-29 14:16:49,377 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.43ms. Allocated memory is still 125.8MB. Free memory was 97.5MB in the beginning and 97.4MB in the end (delta: 103.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 426.06ms. Allocated memory is still 174.1MB. Free memory was 141.2MB in the beginning and 118.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.83ms. Allocated memory is still 174.1MB. Free memory was 118.1MB in the beginning and 116.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.30ms. Allocated memory is still 174.1MB. Free memory was 116.2MB in the beginning and 114.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 465.07ms. Allocated memory is still 174.1MB. Free memory was 113.9MB in the beginning and 137.9MB in the end (delta: -24.0MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1770.06ms. Allocated memory was 174.1MB in the beginning and 237.0MB in the end (delta: 62.9MB). Free memory was 137.9MB in the beginning and 175.2MB in the end (delta: -37.2MB). Peak memory consumption was 25.7MB. 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,IdentifierExpression[g],IntegerLiteral[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] [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: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 300 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 186 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 358 IncrementalHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 22 mSDtfsCounter, 358 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, 0.4s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 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! [2024-01-29 14:16:49,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE