./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/13-privatized_25-struct_nr_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/13-privatized_25-struct_nr_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-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:06:06,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:06:06,515 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:06:06,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:06:06,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:06:06,539 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:06:06,542 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:06:06,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:06:06,543 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:06:06,545 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:06:06,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:06:06,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:06:06,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:06:06,550 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:06:06,551 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:06:06,551 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:06:06,552 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:06:06,553 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:06:06,553 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:06:06,553 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:06:06,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:06:06,554 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:06:06,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:06:06,554 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:06:06,555 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:06:06,555 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:06:06,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:06:06,555 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:06:06,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:06:06,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:06:06,558 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:06:06,558 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:06:06,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:06:06,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:06:06,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:06:06,559 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:06:06,559 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:06:06,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:06:06,559 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:06:06,559 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:06:06,560 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:06:06,560 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:06:06,560 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:06:06,560 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:06:06,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:06:06,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:06:06,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:06:06,860 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:06:06,862 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:06:06,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2024-02-07 19:06:08,237 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:06:08,650 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:06:08,652 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2024-02-07 19:06:08,674 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/261f9e42d/a121018db8454d8db9908661e181eac1/FLAGa44208d02 [2024-02-07 19:06:08,707 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/261f9e42d/a121018db8454d8db9908661e181eac1 [2024-02-07 19:06:08,709 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:06:08,710 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:06:08,712 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/13-privatized_25-struct_nr_true.yml/witness.yml [2024-02-07 19:06:08,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:06:08,826 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:06:08,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:06:08,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:06:08,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:06:08,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:06:08" (1/2) ... [2024-02-07 19:06:08,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff1da4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:08, skipping insertion in model container [2024-02-07 19:06:08,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:06:08" (1/2) ... [2024-02-07 19:06:08,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6ee600bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:06:08, skipping insertion in model container [2024-02-07 19:06:08,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:06:08" (2/2) ... [2024-02-07 19:06:08,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff1da4d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:08, skipping insertion in model container [2024-02-07 19:06:08,836 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:06:08" (2/2) ... [2024-02-07 19:06:08,836 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:06:08,867 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:06:08,868 INFO L76 edCorrectnessWitness]: Location invariant before [L699-L699] glob1 == 5 [2024-02-07 19:06:08,868 INFO L76 edCorrectnessWitness]: Location invariant before [L694-L694] (((0LL - (long long )glob1) + (long long )t >= 0LL) && ((long long )glob1 - (long long )t >= 0LL)) && (glob1 == 5) [2024-02-07 19:06:08,869 INFO L76 edCorrectnessWitness]: Location invariant before [L705-L705] glob1 == 5 [2024-02-07 19:06:08,869 INFO L76 edCorrectnessWitness]: Location invariant before [L692-L692] glob1 == -10 [2024-02-07 19:06:08,869 INFO L76 edCorrectnessWitness]: Location invariant before [L702-L702] glob1 == 5 [2024-02-07 19:06:08,870 INFO L76 edCorrectnessWitness]: Location invariant before [L693-L693] t == 5 [2024-02-07 19:06:08,870 INFO L76 edCorrectnessWitness]: Location invariant before [L689-L689] glob1 == 5 [2024-02-07 19:06:08,870 INFO L76 edCorrectnessWitness]: Location invariant before [L690-L690] t == 5 [2024-02-07 19:06:08,870 INFO L76 edCorrectnessWitness]: Location invariant before [L704-L704] glob1 == 6 [2024-02-07 19:06:08,870 INFO L76 edCorrectnessWitness]: Location invariant before [L703-L703] glob1 == 6 [2024-02-07 19:06:08,908 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:06:09,078 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_25-struct_nr_true.i[1086,1099] [2024-02-07 19:06:09,319 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:06:09,344 INFO L206 MainTranslator]: Completed pre-run [2024-02-07 19:06:09,357 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_25-struct_nr_true.i[1086,1099] 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 [2024-02-07 19:06:09,468 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:06:09,521 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:06:09,521 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:09 WrapperNode [2024-02-07 19:06:09,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:06:09,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:06:09,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:06:09,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:06:09,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:09" (1/1) ... [2024-02-07 19:06:09,572 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:09" (1/1) ... [2024-02-07 19:06:09,626 INFO L138 Inliner]: procedures = 163, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 91 [2024-02-07 19:06:09,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:06:09,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:06:09,627 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:06:09,628 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:06:09,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:09" (1/1) ... [2024-02-07 19:06:09,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:09" (1/1) ... [2024-02-07 19:06:09,649 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:09" (1/1) ... [2024-02-07 19:06:09,681 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 2, 5]. 56 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5]. The 1 writes are split as follows [0, 1, 0]. [2024-02-07 19:06:09,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:09" (1/1) ... [2024-02-07 19:06:09,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:09" (1/1) ... [2024-02-07 19:06:09,715 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:09" (1/1) ... [2024-02-07 19:06:09,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:09" (1/1) ... [2024-02-07 19:06:09,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:09" (1/1) ... [2024-02-07 19:06:09,725 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:09" (1/1) ... [2024-02-07 19:06:09,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:06:09,732 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:06:09,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:06:09,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:06:09,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:09" (1/1) ... [2024-02-07 19:06:09,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:06:09,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:06:09,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 19:06:09,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 19:06:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 19:06:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 19:06:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 19:06:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:06:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:06:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:06:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-07 19:06:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:06:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:06:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-07 19:06:09,920 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-07 19:06:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:06:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:06:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:06:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:06:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-07 19:06:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:06:09,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:06:09,921 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:06:10,083 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:06:10,085 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:06:10,390 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:06:10,394 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:06:10,522 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:06:10,536 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 19:06:10,536 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:06:10 BoogieIcfgContainer [2024-02-07 19:06:10,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:06:10,538 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:06:10,538 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:06:10,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:06:10,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:06:08" (1/4) ... [2024-02-07 19:06:10,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388dc331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:06:10, skipping insertion in model container [2024-02-07 19:06:10,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:06:08" (2/4) ... [2024-02-07 19:06:10,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388dc331 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:06:10, skipping insertion in model container [2024-02-07 19:06:10,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:06:09" (3/4) ... [2024-02-07 19:06:10,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388dc331 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:06:10, skipping insertion in model container [2024-02-07 19:06:10,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:06:10" (4/4) ... [2024-02-07 19:06:10,549 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2024-02-07 19:06:10,578 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:06:10,579 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-02-07 19:06:10,579 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:06:10,635 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-02-07 19:06:10,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions, 117 flow [2024-02-07 19:06:10,738 INFO L124 PetriNetUnfolderBase]: 4/54 cut-off events. [2024-02-07 19:06:10,739 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-07 19:06:10,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 54 events. 4/54 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-02-07 19:06:10,743 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 55 transitions, 117 flow [2024-02-07 19:06:10,751 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 52 transitions, 107 flow [2024-02-07 19:06:10,775 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:06:10,802 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;@2460bc53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:06:10,802 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-02-07 19:06:10,804 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:06:10,812 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-07 19:06:10,813 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:06:10,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:06:10,814 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-07 19:06:10,814 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-07 19:06:10,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:06:10,821 INFO L85 PathProgramCache]: Analyzing trace with hash 8509, now seen corresponding path program 1 times [2024-02-07 19:06:10,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:06:10,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115135375] [2024-02-07 19:06:10,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:06:10,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:06:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:06:11,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:06:11,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:06:11,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115135375] [2024-02-07 19:06:11,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115135375] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:06:11,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:06:11,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:06:11,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332486238] [2024-02-07 19:06:11,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:06:11,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:06:11,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:06:11,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:06:11,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:06:11,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-02-07 19:06:11,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 52 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:11,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:06:11,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-02-07 19:06:11,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:06:11,636 INFO L124 PetriNetUnfolderBase]: 113/426 cut-off events. [2024-02-07 19:06:11,652 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:06:11,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 426 events. 113/426 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2409 event pairs, 60 based on Foata normal form. 65/454 useless extension candidates. Maximal degree in co-relation 702. Up to 176 conditions per place. [2024-02-07 19:06:11,660 INFO L140 encePairwiseOnDemand]: 37/55 looper letters, 36 selfloop transitions, 8 changer transitions 0/64 dead transitions. [2024-02-07 19:06:11,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 64 transitions, 219 flow [2024-02-07 19:06:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:06:11,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:06:11,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-02-07 19:06:11,672 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-02-07 19:06:11,674 INFO L175 Difference]: Start difference. First operand has 52 places, 52 transitions, 107 flow. Second operand 3 states and 121 transitions. [2024-02-07 19:06:11,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 64 transitions, 219 flow [2024-02-07 19:06:11,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 64 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:06:11,705 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 162 flow [2024-02-07 19:06:11,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2024-02-07 19:06:11,710 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2024-02-07 19:06:11,710 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 162 flow [2024-02-07 19:06:11,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:11,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:06:11,711 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-07 19:06:11,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:06:11,712 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-07 19:06:11,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:06:11,713 INFO L85 PathProgramCache]: Analyzing trace with hash 8185385, now seen corresponding path program 1 times [2024-02-07 19:06:11,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:06:11,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177907530] [2024-02-07 19:06:11,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:06:11,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:06:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:06:11,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:06:11,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:06:11,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177907530] [2024-02-07 19:06:11,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177907530] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:06:11,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:06:11,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:06:11,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664324439] [2024-02-07 19:06:11,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:06:11,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:06:11,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:06:11,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:06:11,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:06:11,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-02-07 19:06:11,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:11,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:06:11,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-02-07 19:06:11,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:06:12,198 INFO L124 PetriNetUnfolderBase]: 130/433 cut-off events. [2024-02-07 19:06:12,207 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2024-02-07 19:06:12,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 433 events. 130/433 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2367 event pairs, 56 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 941. Up to 168 conditions per place. [2024-02-07 19:06:12,210 INFO L140 encePairwiseOnDemand]: 41/55 looper letters, 47 selfloop transitions, 17 changer transitions 0/78 dead transitions. [2024-02-07 19:06:12,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 78 transitions, 364 flow [2024-02-07 19:06:12,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:06:12,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:06:12,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2024-02-07 19:06:12,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5527272727272727 [2024-02-07 19:06:12,223 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 162 flow. Second operand 5 states and 152 transitions. [2024-02-07 19:06:12,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 78 transitions, 364 flow [2024-02-07 19:06:12,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 78 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:06:12,226 INFO L231 Difference]: Finished difference. Result has 52 places, 54 transitions, 190 flow [2024-02-07 19:06:12,226 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=52, PETRI_TRANSITIONS=54} [2024-02-07 19:06:12,227 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 0 predicate places. [2024-02-07 19:06:12,227 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 54 transitions, 190 flow [2024-02-07 19:06:12,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:12,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:06:12,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:06:12,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:06:12,228 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-07 19:06:12,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:06:12,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1036121051, now seen corresponding path program 1 times [2024-02-07 19:06:12,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:06:12,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779435557] [2024-02-07 19:06:12,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:06:12,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:06:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:06:12,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:06:12,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:06:12,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779435557] [2024-02-07 19:06:12,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779435557] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:06:12,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:06:12,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:06:12,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131606104] [2024-02-07 19:06:12,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:06:12,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:06:12,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:06:12,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:06:12,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:06:12,435 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 55 [2024-02-07 19:06:12,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 54 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:12,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:06:12,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 55 [2024-02-07 19:06:12,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:06:12,632 INFO L124 PetriNetUnfolderBase]: 113/403 cut-off events. [2024-02-07 19:06:12,632 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-02-07 19:06:12,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 914 conditions, 403 events. 113/403 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2191 event pairs, 26 based on Foata normal form. 16/395 useless extension candidates. Maximal degree in co-relation 895. Up to 136 conditions per place. [2024-02-07 19:06:12,635 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 42 selfloop transitions, 15 changer transitions 0/71 dead transitions. [2024-02-07 19:06:12,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 71 transitions, 354 flow [2024-02-07 19:06:12,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:06:12,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:06:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2024-02-07 19:06:12,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5527272727272727 [2024-02-07 19:06:12,640 INFO L175 Difference]: Start difference. First operand has 52 places, 54 transitions, 190 flow. Second operand 5 states and 152 transitions. [2024-02-07 19:06:12,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 71 transitions, 354 flow [2024-02-07 19:06:12,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 71 transitions, 354 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:06:12,646 INFO L231 Difference]: Finished difference. Result has 54 places, 54 transitions, 228 flow [2024-02-07 19:06:12,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=228, PETRI_PLACES=54, PETRI_TRANSITIONS=54} [2024-02-07 19:06:12,648 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2024-02-07 19:06:12,648 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 54 transitions, 228 flow [2024-02-07 19:06:12,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:12,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:06:12,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:06:12,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 19:06:12,649 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-07 19:06:12,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:06:12,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1058615444, now seen corresponding path program 1 times [2024-02-07 19:06:12,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:06:12,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032034894] [2024-02-07 19:06:12,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:06:12,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:06:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:06:12,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:06:12,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:06:12,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032034894] [2024-02-07 19:06:12,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032034894] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:06:12,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:06:12,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:06:12,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100432509] [2024-02-07 19:06:12,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:06:12,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:06:12,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:06:12,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:06:12,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:06:12,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 55 [2024-02-07 19:06:12,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 54 transitions, 228 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:12,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:06:12,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 55 [2024-02-07 19:06:12,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:06:12,876 INFO L124 PetriNetUnfolderBase]: 123/394 cut-off events. [2024-02-07 19:06:12,876 INFO L125 PetriNetUnfolderBase]: For 241/241 co-relation queries the response was YES. [2024-02-07 19:06:12,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1002 conditions, 394 events. 123/394 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2058 event pairs, 58 based on Foata normal form. 35/411 useless extension candidates. Maximal degree in co-relation 981. Up to 187 conditions per place. [2024-02-07 19:06:12,879 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 38 selfloop transitions, 15 changer transitions 2/67 dead transitions. [2024-02-07 19:06:12,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 67 transitions, 358 flow [2024-02-07 19:06:12,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:06:12,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:06:12,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2024-02-07 19:06:12,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-02-07 19:06:12,881 INFO L175 Difference]: Start difference. First operand has 54 places, 54 transitions, 228 flow. Second operand 4 states and 132 transitions. [2024-02-07 19:06:12,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 67 transitions, 358 flow [2024-02-07 19:06:12,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 67 transitions, 358 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:06:12,884 INFO L231 Difference]: Finished difference. Result has 59 places, 53 transitions, 274 flow [2024-02-07 19:06:12,885 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=59, PETRI_TRANSITIONS=53} [2024-02-07 19:06:12,900 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 7 predicate places. [2024-02-07 19:06:12,901 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 53 transitions, 274 flow [2024-02-07 19:06:12,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:12,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:06:12,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:06:12,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 19:06:12,902 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-07 19:06:12,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:06:12,902 INFO L85 PathProgramCache]: Analyzing trace with hash 720092296, now seen corresponding path program 1 times [2024-02-07 19:06:12,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:06:12,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718770468] [2024-02-07 19:06:12,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:06:12,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:06:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:06:12,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:06:12,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:06:12,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718770468] [2024-02-07 19:06:12,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718770468] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:06:12,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:06:12,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:06:12,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670799458] [2024-02-07 19:06:12,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:06:12,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:06:12,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:06:12,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:06:12,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:06:12,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-02-07 19:06:12,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 53 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:12,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:06:12,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-02-07 19:06:12,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:06:13,037 INFO L124 PetriNetUnfolderBase]: 122/360 cut-off events. [2024-02-07 19:06:13,038 INFO L125 PetriNetUnfolderBase]: For 538/540 co-relation queries the response was YES. [2024-02-07 19:06:13,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1097 conditions, 360 events. 122/360 cut-off events. For 538/540 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1759 event pairs, 62 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 1072. Up to 200 conditions per place. [2024-02-07 19:06:13,040 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 41 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2024-02-07 19:06:13,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 60 transitions, 429 flow [2024-02-07 19:06:13,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:06:13,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:06:13,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-02-07 19:06:13,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6242424242424243 [2024-02-07 19:06:13,045 INFO L175 Difference]: Start difference. First operand has 59 places, 53 transitions, 274 flow. Second operand 3 states and 103 transitions. [2024-02-07 19:06:13,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 60 transitions, 429 flow [2024-02-07 19:06:13,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 60 transitions, 414 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:06:13,048 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 264 flow [2024-02-07 19:06:13,048 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2024-02-07 19:06:13,050 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 4 predicate places. [2024-02-07 19:06:13,050 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 264 flow [2024-02-07 19:06:13,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:13,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:06:13,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:06:13,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-07 19:06:13,051 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-07 19:06:13,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:06:13,051 INFO L85 PathProgramCache]: Analyzing trace with hash 93522400, now seen corresponding path program 1 times [2024-02-07 19:06:13,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:06:13,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457440747] [2024-02-07 19:06:13,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:06:13,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:06:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:06:13,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:06:13,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:06:13,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457440747] [2024-02-07 19:06:13,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457440747] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:06:13,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:06:13,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:06:13,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091425877] [2024-02-07 19:06:13,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:06:13,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:06:13,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:06:13,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:06:13,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:06:13,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-02-07 19:06:13,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:13,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:06:13,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-02-07 19:06:13,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:06:13,170 INFO L124 PetriNetUnfolderBase]: 33/137 cut-off events. [2024-02-07 19:06:13,171 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2024-02-07 19:06:13,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 137 events. 33/137 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 371 event pairs, 7 based on Foata normal form. 12/149 useless extension candidates. Maximal degree in co-relation 348. Up to 72 conditions per place. [2024-02-07 19:06:13,171 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 20 selfloop transitions, 3 changer transitions 5/38 dead transitions. [2024-02-07 19:06:13,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 38 transitions, 222 flow [2024-02-07 19:06:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:06:13,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:06:13,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-02-07 19:06:13,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6606060606060606 [2024-02-07 19:06:13,173 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 264 flow. Second operand 3 states and 109 transitions. [2024-02-07 19:06:13,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 38 transitions, 222 flow [2024-02-07 19:06:13,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 38 transitions, 150 flow, removed 7 selfloop flow, removed 12 redundant places. [2024-02-07 19:06:13,175 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 80 flow [2024-02-07 19:06:13,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2024-02-07 19:06:13,177 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2024-02-07 19:06:13,177 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 80 flow [2024-02-07 19:06:13,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:13,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:06:13,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:06:13,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-07 19:06:13,178 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-07 19:06:13,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:06:13,179 INFO L85 PathProgramCache]: Analyzing trace with hash 848025995, now seen corresponding path program 1 times [2024-02-07 19:06:13,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:06:13,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957167004] [2024-02-07 19:06:13,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:06:13,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:06:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:06:13,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:06:13,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:06:13,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957167004] [2024-02-07 19:06:13,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957167004] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:06:13,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:06:13,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:06:13,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106339733] [2024-02-07 19:06:13,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:06:13,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:06:13,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:06:13,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:06:13,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:06:13,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-02-07 19:06:13,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:13,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:06:13,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-02-07 19:06:13,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:06:13,281 INFO L124 PetriNetUnfolderBase]: 25/98 cut-off events. [2024-02-07 19:06:13,282 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-02-07 19:06:13,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 98 events. 25/98 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 206 event pairs, 19 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 193. Up to 63 conditions per place. [2024-02-07 19:06:13,282 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 21 selfloop transitions, 2 changer transitions 1/31 dead transitions. [2024-02-07 19:06:13,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 31 transitions, 130 flow [2024-02-07 19:06:13,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:06:13,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:06:13,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-02-07 19:06:13,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5878787878787879 [2024-02-07 19:06:13,284 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 80 flow. Second operand 3 states and 97 transitions. [2024-02-07 19:06:13,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 31 transitions, 130 flow [2024-02-07 19:06:13,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 31 transitions, 115 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-02-07 19:06:13,285 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 65 flow [2024-02-07 19:06:13,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2024-02-07 19:06:13,286 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -17 predicate places. [2024-02-07 19:06:13,286 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 65 flow [2024-02-07 19:06:13,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:13,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:06:13,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:06:13,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-07 19:06:13,287 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-07 19:06:13,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:06:13,287 INFO L85 PathProgramCache]: Analyzing trace with hash -282112720, now seen corresponding path program 1 times [2024-02-07 19:06:13,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:06:13,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597501573] [2024-02-07 19:06:13,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:06:13,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:06:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:06:13,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:06:13,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:06:13,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597501573] [2024-02-07 19:06:13,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597501573] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:06:13,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:06:13,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:06:13,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819777574] [2024-02-07 19:06:13,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:06:13,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:06:13,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:06:13,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:06:13,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:06:13,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-02-07 19:06:13,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:13,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:06:13,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-02-07 19:06:13,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:06:13,446 INFO L124 PetriNetUnfolderBase]: 23/90 cut-off events. [2024-02-07 19:06:13,447 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-02-07 19:06:13,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 90 events. 23/90 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 175 event pairs, 11 based on Foata normal form. 4/94 useless extension candidates. Maximal degree in co-relation 165. Up to 39 conditions per place. [2024-02-07 19:06:13,447 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2024-02-07 19:06:13,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 31 transitions, 121 flow [2024-02-07 19:06:13,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:06:13,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:06:13,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2024-02-07 19:06:13,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44545454545454544 [2024-02-07 19:06:13,449 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 65 flow. Second operand 4 states and 98 transitions. [2024-02-07 19:06:13,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 31 transitions, 121 flow [2024-02-07 19:06:13,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 31 transitions, 117 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:06:13,450 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2024-02-07 19:06:13,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2024-02-07 19:06:13,452 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -18 predicate places. [2024-02-07 19:06:13,452 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2024-02-07 19:06:13,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:06:13,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 22 remaining) [2024-02-07 19:06:13,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (20 of 22 remaining) [2024-02-07 19:06:13,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 22 remaining) [2024-02-07 19:06:13,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 22 remaining) [2024-02-07 19:06:13,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (17 of 22 remaining) [2024-02-07 19:06:13,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 22 remaining) [2024-02-07 19:06:13,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 22 remaining) [2024-02-07 19:06:13,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 22 remaining) [2024-02-07 19:06:13,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 22 remaining) [2024-02-07 19:06:13,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 22 remaining) [2024-02-07 19:06:13,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (11 of 22 remaining) [2024-02-07 19:06:13,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 22 remaining) [2024-02-07 19:06:13,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONERROR_FUNCTION (9 of 22 remaining) [2024-02-07 19:06:13,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 22 remaining) [2024-02-07 19:06:13,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 22 remaining) [2024-02-07 19:06:13,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 22 remaining) [2024-02-07 19:06:13,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 22 remaining) [2024-02-07 19:06:13,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 22 remaining) [2024-02-07 19:06:13,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 22 remaining) [2024-02-07 19:06:13,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 22 remaining) [2024-02-07 19:06:13,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 22 remaining) [2024-02-07 19:06:13,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 22 remaining) [2024-02-07 19:06:13,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-07 19:06:13,460 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:06:13,465 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 19:06:13,465 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 19:06:13,470 INFO L503 ceAbstractionStarter]: Automizer considered 10 witness invariants [2024-02-07 19:06:13,470 INFO L504 ceAbstractionStarter]: WitnessConsidered=10 [2024-02-07 19:06:13,472 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:06:13 BasicIcfg [2024-02-07 19:06:13,472 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 19:06:13,472 INFO L158 Benchmark]: Toolchain (without parser) took 4646.73ms. Allocated memory was 188.7MB in the beginning and 264.2MB in the end (delta: 75.5MB). Free memory was 114.9MB in the beginning and 189.1MB in the end (delta: -74.2MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2024-02-07 19:06:13,473 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 78.0MB in the end (delta: 108.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:06:13,473 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 188.7MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:06:13,473 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.85ms. Allocated memory is still 188.7MB. Free memory was 114.5MB in the beginning and 90.1MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-02-07 19:06:13,473 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.67ms. Allocated memory is still 188.7MB. Free memory was 90.1MB in the beginning and 87.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:06:13,473 INFO L158 Benchmark]: Boogie Preprocessor took 104.06ms. Allocated memory is still 188.7MB. Free memory was 87.9MB in the beginning and 85.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:06:13,475 INFO L158 Benchmark]: RCFGBuilder took 804.71ms. Allocated memory is still 188.7MB. Free memory was 85.6MB in the beginning and 138.6MB in the end (delta: -53.1MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-02-07 19:06:13,475 INFO L158 Benchmark]: TraceAbstraction took 2933.95ms. Allocated memory was 188.7MB in the beginning and 264.2MB in the end (delta: 75.5MB). Free memory was 137.7MB in the beginning and 189.1MB in the end (delta: -51.4MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2024-02-07 19:06:13,476 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 78.0MB in the end (delta: 108.0kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.18ms. Allocated memory is still 188.7MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.85ms. Allocated memory is still 188.7MB. Free memory was 114.5MB in the beginning and 90.1MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.67ms. Allocated memory is still 188.7MB. Free memory was 90.1MB in the beginning and 87.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.06ms. Allocated memory is still 188.7MB. Free memory was 87.9MB in the beginning and 85.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 804.71ms. Allocated memory is still 188.7MB. Free memory was 85.6MB in the beginning and 138.6MB in the end (delta: -53.1MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2933.95ms. Allocated memory was 188.7MB in the beginning and 264.2MB in the end (delta: 75.5MB). Free memory was 137.7MB in the beginning and 189.1MB in the end (delta: -51.4MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 703]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 704]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 705]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 77 locations, 22 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: 2.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 314 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 213 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 579 IncrementalHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 37 mSDtfsCounter, 579 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=4, InterpolantAutomatonStates: 30, 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, 0.7s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 147 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-07 19:06:13,508 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 Result: TRUE