./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_42-traces-ex-mini_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b 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_42-traces-ex-mini_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_42-traces-ex-mini_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-8857f20-m [2024-01-29 22:55:26,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:55:26,875 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:55:26,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:55:26,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:55:26,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:55:26,913 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:55:26,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:55:26,914 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:55:26,918 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:55:26,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:55:26,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:55:26,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:55:26,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:55:26,921 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:55:26,921 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:55:26,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:55:26,922 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:55:26,922 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:55:26,922 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:55:26,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:55:26,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:55:26,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:55:26,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:55:26,924 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:55:26,924 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:55:26,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:55:26,925 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:55:26,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:55:26,925 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:55:26,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:55:26,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:55:26,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:55:26,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:55:26,928 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:55:26,929 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:55:26,929 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:55:26,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:55:26,929 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:55:26,930 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:55:26,930 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:55:26,930 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:55:26,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:55:26,931 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:55:27,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:55:27,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:55:27,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:55:27,239 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:55:27,239 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:55:27,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_42-traces-ex-mini_true.yml/witness.yml [2024-01-29 22:55:27,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:55:27,329 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:55:27,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i [2024-01-29 22:55:28,536 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:55:28,778 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:55:28,779 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i [2024-01-29 22:55:28,795 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dc5f8613/f2141199a7764dc9b8b2156523a96cc2/FLAG25f176dc3 [2024-01-29 22:55:28,808 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dc5f8613/f2141199a7764dc9b8b2156523a96cc2 [2024-01-29 22:55:28,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:55:28,811 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:55:28,815 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:55:28,815 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:55:28,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:55:28,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:27" (1/2) ... [2024-01-29 22:55:28,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5d3805 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:28, skipping insertion in model container [2024-01-29 22:55:28,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:27" (1/2) ... [2024-01-29 22:55:28,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@442a2c1a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:28, skipping insertion in model container [2024-01-29 22:55:28,825 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:55:28" (2/2) ... [2024-01-29 22:55:28,826 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5d3805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:28, skipping insertion in model container [2024-01-29 22:55:28,826 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:55:28" (2/2) ... [2024-01-29 22:55:28,826 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:55:28,859 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:55:28,861 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g == 17 [2024-01-29 22:55:28,861 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g == 42 [2024-01-29 22:55:28,861 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (g == 42) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:28,861 INFO L98 nessWitnessExtractor]: Location invariant before [L696-L696] g == 17 [2024-01-29 22:55:28,861 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (g == 17) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:28,862 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g == 17 [2024-01-29 22:55:28,862 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 42 [2024-01-29 22:55:28,862 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (g == 42) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:28,862 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-29 22:55:28,862 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] g == 17 [2024-01-29 22:55:28,862 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-29 22:55:28,863 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 17 [2024-01-29 22:55:28,863 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] (g == 17) && (g == 17) [2024-01-29 22:55:28,863 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] g == 17 [2024-01-29 22:55:28,863 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g == 17 [2024-01-29 22:55:28,863 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-29 22:55:28,863 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g == 17 [2024-01-29 22:55:28,864 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (g == 17) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:28,909 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:55:29,057 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_42-traces-ex-mini_true.i[1091,1104] [2024-01-29 22:55:29,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:55:29,205 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 22:55:29,225 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_42-traces-ex-mini_true.i[1091,1104] [2024-01-29 22:55:29,226 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:55:29,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:55:29,331 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:55:29,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:29 WrapperNode [2024-01-29 22:55:29,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:55:29,333 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:55:29,333 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:55:29,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:55:29,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:29" (1/1) ... [2024-01-29 22:55:29,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:29" (1/1) ... [2024-01-29 22:55:29,370 INFO L138 Inliner]: procedures = 163, calls = 40, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2024-01-29 22:55:29,371 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:55:29,371 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:55:29,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:55:29,372 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:55:29,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:29" (1/1) ... [2024-01-29 22:55:29,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:29" (1/1) ... [2024-01-29 22:55:29,399 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:29" (1/1) ... [2024-01-29 22:55:29,422 INFO L175 MemorySlicer]: Split 18 memory accesses to 5 slices as follows [2, 5, 5, 5, 1]. 28 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-01-29 22:55:29,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:29" (1/1) ... [2024-01-29 22:55:29,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:29" (1/1) ... [2024-01-29 22:55:29,439 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:29" (1/1) ... [2024-01-29 22:55:29,441 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:29" (1/1) ... [2024-01-29 22:55:29,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:29" (1/1) ... [2024-01-29 22:55:29,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:29" (1/1) ... [2024-01-29 22:55:29,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:55:29,447 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:55:29,447 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:55:29,447 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:55:29,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:29" (1/1) ... [2024-01-29 22:55:29,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:55:29,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:55:29,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 22:55:29,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 22:55:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:55:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:55:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:55:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:55:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 22:55:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 22:55:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:55:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:55:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-29 22:55:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-29 22:55:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:55:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:55:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:55:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:55:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:55:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 22:55:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 22:55:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:55:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:55:29,519 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:55:29,632 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:55:29,634 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:55:29,871 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:55:29,876 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:55:30,058 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:55:30,058 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 22:55:30,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:55:30 BoogieIcfgContainer [2024-01-29 22:55:30,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:55:30,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:55:30,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:55:30,064 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:55:30,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:27" (1/4) ... [2024-01-29 22:55:30,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e99a80c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:55:30, skipping insertion in model container [2024-01-29 22:55:30,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:55:28" (2/4) ... [2024-01-29 22:55:30,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e99a80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:55:30, skipping insertion in model container [2024-01-29 22:55:30,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:29" (3/4) ... [2024-01-29 22:55:30,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e99a80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:55:30, skipping insertion in model container [2024-01-29 22:55:30,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:55:30" (4/4) ... [2024-01-29 22:55:30,069 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_42-traces-ex-mini_true.i [2024-01-29 22:55:30,090 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:55:30,092 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-01-29 22:55:30,092 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:55:30,155 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 22:55:30,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 128 flow [2024-01-29 22:55:30,247 INFO L124 PetriNetUnfolderBase]: 1/61 cut-off events. [2024-01-29 22:55:30,248 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:30,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-01-29 22:55:30,253 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 62 transitions, 128 flow [2024-01-29 22:55:30,257 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 61 transitions, 125 flow [2024-01-29 22:55:30,278 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:55:30,286 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;@50a6f276, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:55:30,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-01-29 22:55:30,290 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:55:30,291 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:55:30,291 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:30,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:30,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:55:30,292 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-01-29 22:55:30,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:30,298 INFO L85 PathProgramCache]: Analyzing trace with hash 8453, now seen corresponding path program 1 times [2024-01-29 22:55:30,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:30,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852704963] [2024-01-29 22:55:30,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:30,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:30,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:30,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:30,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852704963] [2024-01-29 22:55:30,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852704963] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:30,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:30,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:55:30,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889212289] [2024-01-29 22:55:30,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:30,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:55:30,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:30,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:55:30,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:55:30,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 62 [2024-01-29 22:55:30,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 61 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:30,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:30,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 62 [2024-01-29 22:55:30,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:30,832 INFO L124 PetriNetUnfolderBase]: 189/652 cut-off events. [2024-01-29 22:55:30,833 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:30,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 652 events. 189/652 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3930 event pairs, 120 based on Foata normal form. 55/670 useless extension candidates. Maximal degree in co-relation 1118. Up to 321 conditions per place. [2024-01-29 22:55:30,843 INFO L140 encePairwiseOnDemand]: 44/62 looper letters, 40 selfloop transitions, 7 changer transitions 0/71 dead transitions. [2024-01-29 22:55:30,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 71 transitions, 239 flow [2024-01-29 22:55:30,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:55:30,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:55:30,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2024-01-29 22:55:30,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7258064516129032 [2024-01-29 22:55:30,861 INFO L175 Difference]: Start difference. First operand has 64 places, 61 transitions, 125 flow. Second operand 3 states and 135 transitions. [2024-01-29 22:55:30,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 71 transitions, 239 flow [2024-01-29 22:55:30,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 71 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 22:55:30,872 INFO L231 Difference]: Finished difference. Result has 64 places, 61 transitions, 174 flow [2024-01-29 22:55:30,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=64, PETRI_TRANSITIONS=61} [2024-01-29 22:55:30,877 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 0 predicate places. [2024-01-29 22:55:30,877 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 61 transitions, 174 flow [2024-01-29 22:55:30,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:30,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:30,878 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 22:55:30,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:55:30,879 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-01-29 22:55:30,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:30,880 INFO L85 PathProgramCache]: Analyzing trace with hash 252148998, now seen corresponding path program 1 times [2024-01-29 22:55:30,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:30,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209886087] [2024-01-29 22:55:30,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:30,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:31,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:31,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:31,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209886087] [2024-01-29 22:55:31,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209886087] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:31,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:31,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:31,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539870833] [2024-01-29 22:55:31,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:31,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:31,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:31,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:31,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:31,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 62 [2024-01-29 22:55:31,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 61 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:31,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:31,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 62 [2024-01-29 22:55:31,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:31,290 INFO L124 PetriNetUnfolderBase]: 112/571 cut-off events. [2024-01-29 22:55:31,293 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-01-29 22:55:31,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1010 conditions, 571 events. 112/571 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3615 event pairs, 21 based on Foata normal form. 22/564 useless extension candidates. Maximal degree in co-relation 996. Up to 224 conditions per place. [2024-01-29 22:55:31,311 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 30 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2024-01-29 22:55:31,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 68 transitions, 254 flow [2024-01-29 22:55:31,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:31,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:31,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 182 transitions. [2024-01-29 22:55:31,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7338709677419355 [2024-01-29 22:55:31,318 INFO L175 Difference]: Start difference. First operand has 64 places, 61 transitions, 174 flow. Second operand 4 states and 182 transitions. [2024-01-29 22:55:31,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 68 transitions, 254 flow [2024-01-29 22:55:31,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 68 transitions, 240 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:31,323 INFO L231 Difference]: Finished difference. Result has 62 places, 58 transitions, 158 flow [2024-01-29 22:55:31,324 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=62, PETRI_TRANSITIONS=58} [2024-01-29 22:55:31,324 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -2 predicate places. [2024-01-29 22:55:31,325 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 158 flow [2024-01-29 22:55:31,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:31,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:31,325 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:31,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:55:31,326 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-01-29 22:55:31,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:31,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1107970773, now seen corresponding path program 1 times [2024-01-29 22:55:31,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:31,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012017077] [2024-01-29 22:55:31,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:31,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:31,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:31,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:31,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012017077] [2024-01-29 22:55:31,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012017077] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:31,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:31,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:55:31,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814091867] [2024-01-29 22:55:31,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:31,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:31,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:31,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:31,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:31,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 62 [2024-01-29 22:55:31,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 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) [2024-01-29 22:55:31,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:31,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 62 [2024-01-29 22:55:31,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:31,641 INFO L124 PetriNetUnfolderBase]: 241/749 cut-off events. [2024-01-29 22:55:31,641 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-01-29 22:55:31,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1548 conditions, 749 events. 241/749 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4413 event pairs, 55 based on Foata normal form. 14/716 useless extension candidates. Maximal degree in co-relation 1534. Up to 259 conditions per place. [2024-01-29 22:55:31,647 INFO L140 encePairwiseOnDemand]: 52/62 looper letters, 55 selfloop transitions, 9 changer transitions 0/80 dead transitions. [2024-01-29 22:55:31,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 80 transitions, 338 flow [2024-01-29 22:55:31,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:31,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:31,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2024-01-29 22:55:31,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5362903225806451 [2024-01-29 22:55:31,650 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 158 flow. Second operand 4 states and 133 transitions. [2024-01-29 22:55:31,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 80 transitions, 338 flow [2024-01-29 22:55:31,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 80 transitions, 335 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:31,654 INFO L231 Difference]: Finished difference. Result has 62 places, 57 transitions, 171 flow [2024-01-29 22:55:31,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=171, PETRI_PLACES=62, PETRI_TRANSITIONS=57} [2024-01-29 22:55:31,656 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -2 predicate places. [2024-01-29 22:55:31,656 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 57 transitions, 171 flow [2024-01-29 22:55:31,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 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) [2024-01-29 22:55:31,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:31,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:31,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:55:31,657 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-01-29 22:55:31,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:31,658 INFO L85 PathProgramCache]: Analyzing trace with hash 12644716, now seen corresponding path program 1 times [2024-01-29 22:55:31,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:31,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358877429] [2024-01-29 22:55:31,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:31,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:31,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:31,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358877429] [2024-01-29 22:55:31,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358877429] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:31,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:31,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:31,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533237577] [2024-01-29 22:55:31,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:31,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:31,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:31,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:31,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:31,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 62 [2024-01-29 22:55:31,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 57 transitions, 171 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:31,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:31,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 62 [2024-01-29 22:55:31,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:31,929 INFO L124 PetriNetUnfolderBase]: 200/570 cut-off events. [2024-01-29 22:55:31,929 INFO L125 PetriNetUnfolderBase]: For 131/133 co-relation queries the response was YES. [2024-01-29 22:55:31,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1266 conditions, 570 events. 200/570 cut-off events. For 131/133 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2926 event pairs, 25 based on Foata normal form. 76/642 useless extension candidates. Maximal degree in co-relation 1252. Up to 290 conditions per place. [2024-01-29 22:55:31,933 INFO L140 encePairwiseOnDemand]: 51/62 looper letters, 51 selfloop transitions, 3 changer transitions 0/71 dead transitions. [2024-01-29 22:55:31,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 71 transitions, 299 flow [2024-01-29 22:55:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:31,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:31,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2024-01-29 22:55:31,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6048387096774194 [2024-01-29 22:55:31,935 INFO L175 Difference]: Start difference. First operand has 62 places, 57 transitions, 171 flow. Second operand 4 states and 150 transitions. [2024-01-29 22:55:31,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 71 transitions, 299 flow [2024-01-29 22:55:31,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 71 transitions, 289 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:31,938 INFO L231 Difference]: Finished difference. Result has 58 places, 49 transitions, 135 flow [2024-01-29 22:55:31,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=135, PETRI_PLACES=58, PETRI_TRANSITIONS=49} [2024-01-29 22:55:31,939 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -6 predicate places. [2024-01-29 22:55:31,940 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 49 transitions, 135 flow [2024-01-29 22:55:31,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:31,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:31,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:31,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:55:31,941 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-01-29 22:55:31,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:31,941 INFO L85 PathProgramCache]: Analyzing trace with hash -246290243, now seen corresponding path program 1 times [2024-01-29 22:55:31,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:31,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741098078] [2024-01-29 22:55:31,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:31,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:32,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:32,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:32,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741098078] [2024-01-29 22:55:32,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741098078] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:32,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:32,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:32,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295536224] [2024-01-29 22:55:32,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:32,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:32,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:32,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:32,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:32,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 62 [2024-01-29 22:55:32,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 49 transitions, 135 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:32,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:32,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 62 [2024-01-29 22:55:32,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:32,143 INFO L124 PetriNetUnfolderBase]: 178/497 cut-off events. [2024-01-29 22:55:32,143 INFO L125 PetriNetUnfolderBase]: For 90/94 co-relation queries the response was YES. [2024-01-29 22:55:32,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1117 conditions, 497 events. 178/497 cut-off events. For 90/94 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2472 event pairs, 112 based on Foata normal form. 4/495 useless extension candidates. Maximal degree in co-relation 1104. Up to 235 conditions per place. [2024-01-29 22:55:32,150 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 45 selfloop transitions, 8 changer transitions 4/70 dead transitions. [2024-01-29 22:55:32,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 70 transitions, 305 flow [2024-01-29 22:55:32,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:55:32,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:55:32,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2024-01-29 22:55:32,151 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5612903225806452 [2024-01-29 22:55:32,151 INFO L175 Difference]: Start difference. First operand has 58 places, 49 transitions, 135 flow. Second operand 5 states and 174 transitions. [2024-01-29 22:55:32,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 70 transitions, 305 flow [2024-01-29 22:55:32,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 70 transitions, 295 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:32,154 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 151 flow [2024-01-29 22:55:32,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=151, PETRI_PLACES=57, PETRI_TRANSITIONS=50} [2024-01-29 22:55:32,157 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -7 predicate places. [2024-01-29 22:55:32,157 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 151 flow [2024-01-29 22:55:32,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:32,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:32,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:32,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:55:32,158 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-01-29 22:55:32,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:32,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1482498607, now seen corresponding path program 1 times [2024-01-29 22:55:32,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:32,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798657985] [2024-01-29 22:55:32,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:32,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:32,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:32,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:32,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798657985] [2024-01-29 22:55:32,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798657985] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:32,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:32,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:32,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753855913] [2024-01-29 22:55:32,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:32,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:32,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:32,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:32,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:32,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 62 [2024-01-29 22:55:32,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 50 transitions, 151 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) [2024-01-29 22:55:32,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:32,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 62 [2024-01-29 22:55:32,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:32,402 INFO L124 PetriNetUnfolderBase]: 236/636 cut-off events. [2024-01-29 22:55:32,402 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-01-29 22:55:32,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1441 conditions, 636 events. 236/636 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3292 event pairs, 29 based on Foata normal form. 0/636 useless extension candidates. Maximal degree in co-relation 1427. Up to 266 conditions per place. [2024-01-29 22:55:32,405 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 51 selfloop transitions, 8 changer transitions 10/79 dead transitions. [2024-01-29 22:55:32,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 79 transitions, 371 flow [2024-01-29 22:55:32,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:32,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:32,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2024-01-29 22:55:32,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5443548387096774 [2024-01-29 22:55:32,406 INFO L175 Difference]: Start difference. First operand has 57 places, 50 transitions, 151 flow. Second operand 4 states and 135 transitions. [2024-01-29 22:55:32,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 79 transitions, 371 flow [2024-01-29 22:55:32,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 79 transitions, 371 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:55:32,408 INFO L231 Difference]: Finished difference. Result has 60 places, 49 transitions, 183 flow [2024-01-29 22:55:32,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=183, PETRI_PLACES=60, PETRI_TRANSITIONS=49} [2024-01-29 22:55:32,409 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -4 predicate places. [2024-01-29 22:55:32,409 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 49 transitions, 183 flow [2024-01-29 22:55:32,409 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) [2024-01-29 22:55:32,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:32,409 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:32,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:55:32,410 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-01-29 22:55:32,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:32,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1652723215, now seen corresponding path program 1 times [2024-01-29 22:55:32,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:32,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531262121] [2024-01-29 22:55:32,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:32,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:32,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:32,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:32,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531262121] [2024-01-29 22:55:32,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531262121] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:32,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:32,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:32,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369009184] [2024-01-29 22:55:32,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:32,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:32,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:32,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:32,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:32,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 62 [2024-01-29 22:55:32,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:32,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:32,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 62 [2024-01-29 22:55:32,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:32,587 INFO L124 PetriNetUnfolderBase]: 52/263 cut-off events. [2024-01-29 22:55:32,588 INFO L125 PetriNetUnfolderBase]: For 115/117 co-relation queries the response was YES. [2024-01-29 22:55:32,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 263 events. 52/263 cut-off events. For 115/117 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1213 event pairs, 26 based on Foata normal form. 10/260 useless extension candidates. Maximal degree in co-relation 552. Up to 62 conditions per place. [2024-01-29 22:55:32,589 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 22 selfloop transitions, 6 changer transitions 0/55 dead transitions. [2024-01-29 22:55:32,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 55 transitions, 254 flow [2024-01-29 22:55:32,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:32,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 193 transitions. [2024-01-29 22:55:32,591 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7782258064516129 [2024-01-29 22:55:32,591 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 183 flow. Second operand 4 states and 193 transitions. [2024-01-29 22:55:32,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 55 transitions, 254 flow [2024-01-29 22:55:32,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 55 transitions, 233 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-01-29 22:55:32,593 INFO L231 Difference]: Finished difference. Result has 55 places, 48 transitions, 174 flow [2024-01-29 22:55:32,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2024-01-29 22:55:32,594 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -9 predicate places. [2024-01-29 22:55:32,594 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 174 flow [2024-01-29 22:55:32,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:32,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:32,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:32,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 22:55:32,595 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-01-29 22:55:32,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:32,596 INFO L85 PathProgramCache]: Analyzing trace with hash 435412947, now seen corresponding path program 1 times [2024-01-29 22:55:32,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:32,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364354432] [2024-01-29 22:55:32,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:32,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:32,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:32,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:32,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364354432] [2024-01-29 22:55:32,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364354432] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:32,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:32,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-29 22:55:32,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465376741] [2024-01-29 22:55:32,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:32,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-29 22:55:32,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:32,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-29 22:55:32,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-29 22:55:32,811 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 62 [2024-01-29 22:55:32,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:32,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:32,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 62 [2024-01-29 22:55:32,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:32,863 INFO L124 PetriNetUnfolderBase]: 24/157 cut-off events. [2024-01-29 22:55:32,863 INFO L125 PetriNetUnfolderBase]: For 85/90 co-relation queries the response was YES. [2024-01-29 22:55:32,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 157 events. 24/157 cut-off events. For 85/90 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 554 event pairs, 8 based on Foata normal form. 8/158 useless extension candidates. Maximal degree in co-relation 327. Up to 54 conditions per place. [2024-01-29 22:55:32,864 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-01-29 22:55:32,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 48 transitions, 220 flow [2024-01-29 22:55:32,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:32,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:32,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-01-29 22:55:32,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7620967741935484 [2024-01-29 22:55:32,866 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 174 flow. Second operand 4 states and 189 transitions. [2024-01-29 22:55:32,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 48 transitions, 220 flow [2024-01-29 22:55:32,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 48 transitions, 193 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-01-29 22:55:32,868 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2024-01-29 22:55:32,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2024-01-29 22:55:32,870 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -13 predicate places. [2024-01-29 22:55:32,870 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2024-01-29 22:55:32,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:32,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 29 remaining) [2024-01-29 22:55:32,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 29 remaining) [2024-01-29 22:55:32,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (26 of 29 remaining) [2024-01-29 22:55:32,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 29 remaining) [2024-01-29 22:55:32,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 29 remaining) [2024-01-29 22:55:32,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 29 remaining) [2024-01-29 22:55:32,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 29 remaining) [2024-01-29 22:55:32,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 29 remaining) [2024-01-29 22:55:32,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 29 remaining) [2024-01-29 22:55:32,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 29 remaining) [2024-01-29 22:55:32,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 29 remaining) [2024-01-29 22:55:32,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 29 remaining) [2024-01-29 22:55:32,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 29 remaining) [2024-01-29 22:55:32,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 29 remaining) [2024-01-29 22:55:32,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 29 remaining) [2024-01-29 22:55:32,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 29 remaining) [2024-01-29 22:55:32,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 29 remaining) [2024-01-29 22:55:32,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 29 remaining) [2024-01-29 22:55:32,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 29 remaining) [2024-01-29 22:55:32,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 29 remaining) [2024-01-29 22:55:32,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 29 remaining) [2024-01-29 22:55:32,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 29 remaining) [2024-01-29 22:55:32,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 29 remaining) [2024-01-29 22:55:32,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 29 remaining) [2024-01-29 22:55:32,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 29 remaining) [2024-01-29 22:55:32,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 29 remaining) [2024-01-29 22:55:32,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 29 remaining) [2024-01-29 22:55:32,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 29 remaining) [2024-01-29 22:55:32,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 29 remaining) [2024-01-29 22:55:32,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 22:55:32,882 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:32,887 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:55:32,887 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:55:32,893 INFO L503 ceAbstractionStarter]: Automizer considered 16 witness invariants [2024-01-29 22:55:32,893 INFO L504 ceAbstractionStarter]: WitnessConsidered=16 [2024-01-29 22:55:32,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:55:32 BasicIcfg [2024-01-29 22:55:32,895 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:55:32,896 INFO L158 Benchmark]: Toolchain (without parser) took 4085.70ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 94.0MB in the beginning and 115.8MB in the end (delta: -21.8MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-01-29 22:55:32,896 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:55:32,896 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:55:32,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.64ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 71.0MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:32,897 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.89ms. Allocated memory is still 142.6MB. Free memory was 71.0MB in the beginning and 68.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:32,897 INFO L158 Benchmark]: Boogie Preprocessor took 74.88ms. Allocated memory is still 142.6MB. Free memory was 68.9MB in the beginning and 66.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:32,899 INFO L158 Benchmark]: RCFGBuilder took 611.59ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 66.2MB in the beginning and 150.7MB in the end (delta: -84.5MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2024-01-29 22:55:32,900 INFO L158 Benchmark]: TraceAbstraction took 2834.65ms. Allocated memory is still 190.8MB. Free memory was 149.6MB in the beginning and 115.8MB in the end (delta: 33.8MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2024-01-29 22:55:32,901 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 517.64ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 71.0MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.89ms. Allocated memory is still 142.6MB. Free memory was 71.0MB in the beginning and 68.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.88ms. Allocated memory is still 142.6MB. Free memory was 68.9MB in the beginning and 66.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 611.59ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 66.2MB in the beginning and 150.7MB in the end (delta: -84.5MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2834.65ms. Allocated memory is still 190.8MB. Free memory was 149.6MB in the beginning and 115.8MB in the end (delta: 33.8MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 696]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: 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: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds 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: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: 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: 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: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 29 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: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 547 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 358 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 671 IncrementalHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 114 mSolverCounterUnsat, 75 mSDtfsCounter, 671 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=6, InterpolantAutomatonStates: 32, 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, 0.8s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 753 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 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-29 22:55:32,932 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