./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.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/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 80b1b132 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.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-?-80b1b13-m [2024-01-31 16:44:16,964 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:44:17,035 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:44:17,038 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:44:17,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:44:17,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:44:17,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:44:17,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:44:17,054 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:44:17,054 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:44:17,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:44:17,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:44:17,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:44:17,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:44:17,056 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:44:17,056 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:44:17,056 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:44:17,056 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:44:17,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:44:17,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:44:17,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:44:17,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:44:17,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:44:17,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:44:17,064 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:44:17,064 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:44:17,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:44:17,065 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:44:17,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:44:17,065 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:44:17,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:44:17,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:44:17,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:44:17,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:44:17,067 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:44:17,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:44:17,073 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:44:17,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:44:17,073 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:44:17,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:44:17,074 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:44:17,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:44:17,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:44:17,074 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:44:17,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:44:17,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:44:17,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:44:17,300 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:44:17,300 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:44:17,301 INFO L431 ainManager$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/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.yml/witness.yml [2024-01-31 16:44:17,525 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:44:17,526 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:44:17,527 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-01-31 16:44:18,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:44:18,936 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:44:18,936 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-01-31 16:44:18,947 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/143dfa823/ab16251bac39467281809e30a441b531/FLAG47e98662f [2024-01-31 16:44:18,960 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/143dfa823/ab16251bac39467281809e30a441b531 [2024-01-31 16:44:18,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:44:18,962 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:44:18,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:44:18,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:44:18,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:44:18,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:44:17" (1/2) ... [2024-01-31 16:44:18,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75bb18cd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:18, skipping insertion in model container [2024-01-31 16:44:18,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:44:17" (1/2) ... [2024-01-31 16:44:18,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3662c099 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:18, skipping insertion in model container [2024-01-31 16:44:18,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:18" (2/2) ... [2024-01-31 16:44:18,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75bb18cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:18, skipping insertion in model container [2024-01-31 16:44:18,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:18" (2/2) ... [2024-01-31 16:44:18,973 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:44:19,283 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:44:19,284 INFO L98 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 0 [2024-01-31 16:44:19,284 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-01-31 16:44:19,326 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:44:19,497 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-01-31 16:44:19,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:44:19,597 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 16:44:19,605 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] Start Parsing Local [2024-01-31 16:44:19,622 WARN L424 MainDispatcher]: Unable to annotate ; with a witness entry [2024-01-31 16:44:19,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:44:19,665 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:44:19,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:19 WrapperNode [2024-01-31 16:44:19,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:44:19,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:44:19,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:44:19,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:44:19,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:19" (1/1) ... [2024-01-31 16:44:19,684 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:19" (1/1) ... [2024-01-31 16:44:19,699 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-01-31 16:44:19,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:44:19,700 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:44:19,700 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:44:19,700 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:44:19,707 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:19" (1/1) ... [2024-01-31 16:44:19,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:19" (1/1) ... [2024-01-31 16:44:19,709 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:19" (1/1) ... [2024-01-31 16:44:19,720 INFO L175 MemorySlicer]: Split 5 memory accesses to 4 slices as follows [2, 1, 1, 1]. 40 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-31 16:44:19,720 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:19" (1/1) ... [2024-01-31 16:44:19,720 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:19" (1/1) ... [2024-01-31 16:44:19,724 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:19" (1/1) ... [2024-01-31 16:44:19,725 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:19" (1/1) ... [2024-01-31 16:44:19,726 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:19" (1/1) ... [2024-01-31 16:44:19,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:19" (1/1) ... [2024-01-31 16:44:19,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:44:19,729 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:44:19,729 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:44:19,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:44:19,730 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:19" (1/1) ... [2024-01-31 16:44:19,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:44:19,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:44:19,752 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) [2024-01-31 16:44:19,768 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 [2024-01-31 16:44:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:44:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:44:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:44:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 16:44:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 16:44:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:44:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:44:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:44:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-01-31 16:44:19,780 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-01-31 16:44:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-01-31 16:44:19,781 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-01-31 16:44:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-01-31 16:44:19,781 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-01-31 16:44:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:44:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:44:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:44:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 16:44:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 16:44:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:44:19,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:44:19,783 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 16:44:19,871 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:44:19,874 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:44:20,038 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:44:20,038 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:44:20,118 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:44:20,119 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-31 16:44:20,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:20 BoogieIcfgContainer [2024-01-31 16:44:20,119 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:44:20,121 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:44:20,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:44:20,123 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:44:20,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:44:17" (1/4) ... [2024-01-31 16:44:20,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29893eda and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:44:20, skipping insertion in model container [2024-01-31 16:44:20,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:44:18" (2/4) ... [2024-01-31 16:44:20,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29893eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:20, skipping insertion in model container [2024-01-31 16:44:20,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:19" (3/4) ... [2024-01-31 16:44:20,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29893eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:20, skipping insertion in model container [2024-01-31 16:44:20,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:20" (4/4) ... [2024-01-31 16:44:20,127 INFO L112 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-01-31 16:44:20,142 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:44:20,142 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-01-31 16:44:20,142 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:44:20,200 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:44:20,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 40 transitions, 92 flow [2024-01-31 16:44:20,283 INFO L124 PetriNetUnfolderBase]: 1/37 cut-off events. [2024-01-31 16:44:20,283 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:44:20,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 37 events. 1/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-01-31 16:44:20,289 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 40 transitions, 92 flow [2024-01-31 16:44:20,292 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 34 transitions, 77 flow [2024-01-31 16:44:20,303 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:44:20,315 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;@1590e16a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:44:20,315 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-01-31 16:44:20,338 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:44:20,356 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-01-31 16:44:20,357 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:44:20,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:20,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:20,358 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:20,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:20,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1798407073, now seen corresponding path program 1 times [2024-01-31 16:44:20,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:20,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879172763] [2024-01-31 16:44:20,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:20,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:20,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:20,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879172763] [2024-01-31 16:44:20,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879172763] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:20,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:20,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:44:20,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933559521] [2024-01-31 16:44:20,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:20,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:44:20,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:20,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:44:20,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:44:20,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 40 [2024-01-31 16:44:20,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 77 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) [2024-01-31 16:44:20,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:20,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 40 [2024-01-31 16:44:20,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:20,691 INFO L124 PetriNetUnfolderBase]: 75/202 cut-off events. [2024-01-31 16:44:20,691 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:44:20,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 202 events. 75/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1086 event pairs, 51 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 346. Up to 97 conditions per place. [2024-01-31 16:44:20,694 INFO L140 encePairwiseOnDemand]: 38/40 looper letters, 16 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2024-01-31 16:44:20,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 36 transitions, 115 flow [2024-01-31 16:44:20,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:44:20,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:44:20,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-01-31 16:44:20,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-01-31 16:44:20,711 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 77 flow. Second operand 3 states and 84 transitions. [2024-01-31 16:44:20,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 36 transitions, 115 flow [2024-01-31 16:44:20,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 36 transitions, 112 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-31 16:44:20,715 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 74 flow [2024-01-31 16:44:20,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2024-01-31 16:44:20,719 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -2 predicate places. [2024-01-31 16:44:20,719 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 74 flow [2024-01-31 16:44:20,719 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) [2024-01-31 16:44:20,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:20,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:20,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:44:20,720 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:20,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:20,720 INFO L85 PathProgramCache]: Analyzing trace with hash 83955784, now seen corresponding path program 1 times [2024-01-31 16:44:20,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:20,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282313688] [2024-01-31 16:44:20,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:20,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:20,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:20,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:20,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282313688] [2024-01-31 16:44:20,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282313688] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:20,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:20,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:44:20,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861844246] [2024-01-31 16:44:20,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:20,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:44:20,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:20,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:44:20,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:44:20,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 40 [2024-01-31 16:44:20,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:44:20,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:20,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 40 [2024-01-31 16:44:20,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:21,129 INFO L124 PetriNetUnfolderBase]: 291/617 cut-off events. [2024-01-31 16:44:21,129 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:44:21,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1147 conditions, 617 events. 291/617 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3499 event pairs, 58 based on Foata normal form. 27/636 useless extension candidates. Maximal degree in co-relation 1138. Up to 236 conditions per place. [2024-01-31 16:44:21,137 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 25 selfloop transitions, 5 changer transitions 1/48 dead transitions. [2024-01-31 16:44:21,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 48 transitions, 170 flow [2024-01-31 16:44:21,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:44:21,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:44:21,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions. [2024-01-31 16:44:21,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.75625 [2024-01-31 16:44:21,143 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 74 flow. Second operand 4 states and 121 transitions. [2024-01-31 16:44:21,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 48 transitions, 170 flow [2024-01-31 16:44:21,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 48 transitions, 169 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 16:44:21,150 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 107 flow [2024-01-31 16:44:21,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=107, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-01-31 16:44:21,152 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 2 predicate places. [2024-01-31 16:44:21,152 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 107 flow [2024-01-31 16:44:21,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:44:21,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:21,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:21,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:44:21,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:21,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:21,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1437889650, now seen corresponding path program 1 times [2024-01-31 16:44:21,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:21,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345044474] [2024-01-31 16:44:21,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:21,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:21,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:21,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:21,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345044474] [2024-01-31 16:44:21,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345044474] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:21,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:21,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 16:44:21,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487337166] [2024-01-31 16:44:21,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:21,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:44:21,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:21,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:44:21,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:44:21,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 40 [2024-01-31 16:44:21,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-01-31 16:44:21,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:21,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 40 [2024-01-31 16:44:21,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:21,523 INFO L124 PetriNetUnfolderBase]: 249/526 cut-off events. [2024-01-31 16:44:21,523 INFO L125 PetriNetUnfolderBase]: For 173/176 co-relation queries the response was YES. [2024-01-31 16:44:21,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 526 events. 249/526 cut-off events. For 173/176 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2689 event pairs, 15 based on Foata normal form. 28/547 useless extension candidates. Maximal degree in co-relation 1212. Up to 188 conditions per place. [2024-01-31 16:44:21,527 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 31 selfloop transitions, 8 changer transitions 1/57 dead transitions. [2024-01-31 16:44:21,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 250 flow [2024-01-31 16:44:21,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 16:44:21,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 16:44:21,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2024-01-31 16:44:21,532 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.76 [2024-01-31 16:44:21,532 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 107 flow. Second operand 5 states and 152 transitions. [2024-01-31 16:44:21,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 250 flow [2024-01-31 16:44:21,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 240 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-01-31 16:44:21,535 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 147 flow [2024-01-31 16:44:21,535 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=147, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2024-01-31 16:44:21,536 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 6 predicate places. [2024-01-31 16:44:21,536 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 147 flow [2024-01-31 16:44:21,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-01-31 16:44:21,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:21,537 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:21,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:44:21,537 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:21,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:21,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1581325878, now seen corresponding path program 1 times [2024-01-31 16:44:21,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:21,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566725445] [2024-01-31 16:44:21,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:21,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:21,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:21,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:21,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566725445] [2024-01-31 16:44:21,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566725445] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:21,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:21,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-31 16:44:21,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254411297] [2024-01-31 16:44:21,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:21,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:21,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:21,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:21,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:21,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 40 [2024-01-31 16:44:21,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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) [2024-01-31 16:44:21,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:21,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 40 [2024-01-31 16:44:21,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:21,779 INFO L124 PetriNetUnfolderBase]: 174/349 cut-off events. [2024-01-31 16:44:21,779 INFO L125 PetriNetUnfolderBase]: For 358/364 co-relation queries the response was YES. [2024-01-31 16:44:21,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 956 conditions, 349 events. 174/349 cut-off events. For 358/364 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1349 event pairs, 6 based on Foata normal form. 24/366 useless extension candidates. Maximal degree in co-relation 942. Up to 108 conditions per place. [2024-01-31 16:44:21,781 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 29 selfloop transitions, 11 changer transitions 1/58 dead transitions. [2024-01-31 16:44:21,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 58 transitions, 277 flow [2024-01-31 16:44:21,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 16:44:21,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 16:44:21,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 175 transitions. [2024-01-31 16:44:21,783 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-01-31 16:44:21,783 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 147 flow. Second operand 6 states and 175 transitions. [2024-01-31 16:44:21,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 58 transitions, 277 flow [2024-01-31 16:44:21,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 58 transitions, 252 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-01-31 16:44:21,785 INFO L231 Difference]: Finished difference. Result has 53 places, 39 transitions, 161 flow [2024-01-31 16:44:21,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=161, PETRI_PLACES=53, PETRI_TRANSITIONS=39} [2024-01-31 16:44:21,786 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 9 predicate places. [2024-01-31 16:44:21,786 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 39 transitions, 161 flow [2024-01-31 16:44:21,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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) [2024-01-31 16:44:21,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:21,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:21,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 16:44:21,787 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:21,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:21,788 INFO L85 PathProgramCache]: Analyzing trace with hash -652423955, now seen corresponding path program 1 times [2024-01-31 16:44:21,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:21,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257592721] [2024-01-31 16:44:21,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:21,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:21,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:21,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:21,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257592721] [2024-01-31 16:44:21,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257592721] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:21,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:21,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 16:44:21,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412017590] [2024-01-31 16:44:21,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:21,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:21,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:21,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:21,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:21,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 40 [2024-01-31 16:44:21,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 39 transitions, 161 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2024-01-31 16:44:21,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:21,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 40 [2024-01-31 16:44:21,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:22,062 INFO L124 PetriNetUnfolderBase]: 322/653 cut-off events. [2024-01-31 16:44:22,062 INFO L125 PetriNetUnfolderBase]: For 367/375 co-relation queries the response was YES. [2024-01-31 16:44:22,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1560 conditions, 653 events. 322/653 cut-off events. For 367/375 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3186 event pairs, 99 based on Foata normal form. 8/615 useless extension candidates. Maximal degree in co-relation 1545. Up to 301 conditions per place. [2024-01-31 16:44:22,066 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 28 selfloop transitions, 7 changer transitions 15/70 dead transitions. [2024-01-31 16:44:22,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 70 transitions, 339 flow [2024-01-31 16:44:22,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 16:44:22,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 16:44:22,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2024-01-31 16:44:22,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-01-31 16:44:22,067 INFO L175 Difference]: Start difference. First operand has 53 places, 39 transitions, 161 flow. Second operand 7 states and 184 transitions. [2024-01-31 16:44:22,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 70 transitions, 339 flow [2024-01-31 16:44:22,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 70 transitions, 275 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-01-31 16:44:22,070 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 145 flow [2024-01-31 16:44:22,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=145, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-01-31 16:44:22,071 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 11 predicate places. [2024-01-31 16:44:22,071 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 145 flow [2024-01-31 16:44:22,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2024-01-31 16:44:22,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:22,072 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:22,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-31 16:44:22,072 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:22,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:22,073 INFO L85 PathProgramCache]: Analyzing trace with hash 617523425, now seen corresponding path program 2 times [2024-01-31 16:44:22,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:22,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050369115] [2024-01-31 16:44:22,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:22,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:22,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:22,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:22,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050369115] [2024-01-31 16:44:22,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050369115] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:22,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:22,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-31 16:44:22,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753045373] [2024-01-31 16:44:22,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:22,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 16:44:22,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:22,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 16:44:22,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-01-31 16:44:22,197 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 40 [2024-01-31 16:44:22,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 145 flow. Second operand has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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) [2024-01-31 16:44:22,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:22,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 40 [2024-01-31 16:44:22,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:22,331 INFO L124 PetriNetUnfolderBase]: 369/762 cut-off events. [2024-01-31 16:44:22,332 INFO L125 PetriNetUnfolderBase]: For 171/171 co-relation queries the response was YES. [2024-01-31 16:44:22,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1652 conditions, 762 events. 369/762 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4006 event pairs, 127 based on Foata normal form. 8/704 useless extension candidates. Maximal degree in co-relation 1637. Up to 271 conditions per place. [2024-01-31 16:44:22,335 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 21 selfloop transitions, 3 changer transitions 28/72 dead transitions. [2024-01-31 16:44:22,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 72 transitions, 323 flow [2024-01-31 16:44:22,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-31 16:44:22,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-31 16:44:22,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 205 transitions. [2024-01-31 16:44:22,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.640625 [2024-01-31 16:44:22,360 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 145 flow. Second operand 8 states and 205 transitions. [2024-01-31 16:44:22,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 72 transitions, 323 flow [2024-01-31 16:44:22,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 72 transitions, 317 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-01-31 16:44:22,362 INFO L231 Difference]: Finished difference. Result has 61 places, 39 transitions, 130 flow [2024-01-31 16:44:22,362 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=130, PETRI_PLACES=61, PETRI_TRANSITIONS=39} [2024-01-31 16:44:22,363 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 17 predicate places. [2024-01-31 16:44:22,363 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 39 transitions, 130 flow [2024-01-31 16:44:22,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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) [2024-01-31 16:44:22,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:22,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:22,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-31 16:44:22,364 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:22,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:22,364 INFO L85 PathProgramCache]: Analyzing trace with hash 531325241, now seen corresponding path program 3 times [2024-01-31 16:44:22,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:22,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060518625] [2024-01-31 16:44:22,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:22,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:22,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:22,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060518625] [2024-01-31 16:44:22,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060518625] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:22,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:22,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 16:44:22,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853673054] [2024-01-31 16:44:22,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:22,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 16:44:22,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:22,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 16:44:22,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-01-31 16:44:22,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 40 [2024-01-31 16:44:22,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 39 transitions, 130 flow. Second operand has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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) [2024-01-31 16:44:22,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:22,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 40 [2024-01-31 16:44:22,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:22,588 INFO L124 PetriNetUnfolderBase]: 278/626 cut-off events. [2024-01-31 16:44:22,588 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-01-31 16:44:22,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1334 conditions, 626 events. 278/626 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3163 event pairs, 106 based on Foata normal form. 8/596 useless extension candidates. Maximal degree in co-relation 1316. Up to 211 conditions per place. [2024-01-31 16:44:22,591 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 21 selfloop transitions, 3 changer transitions 18/62 dead transitions. [2024-01-31 16:44:22,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 62 transitions, 280 flow [2024-01-31 16:44:22,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 16:44:22,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 16:44:22,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 157 transitions. [2024-01-31 16:44:22,592 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6541666666666667 [2024-01-31 16:44:22,592 INFO L175 Difference]: Start difference. First operand has 61 places, 39 transitions, 130 flow. Second operand 6 states and 157 transitions. [2024-01-31 16:44:22,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 62 transitions, 280 flow [2024-01-31 16:44:22,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 62 transitions, 250 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-01-31 16:44:22,594 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 127 flow [2024-01-31 16:44:22,594 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=127, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2024-01-31 16:44:22,595 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 13 predicate places. [2024-01-31 16:44:22,595 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 127 flow [2024-01-31 16:44:22,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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) [2024-01-31 16:44:22,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:22,596 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:22,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-31 16:44:22,596 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:22,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:22,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1743531727, now seen corresponding path program 4 times [2024-01-31 16:44:22,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:22,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621414913] [2024-01-31 16:44:22,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:22,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:22,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:22,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:22,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621414913] [2024-01-31 16:44:22,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621414913] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:22,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:22,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 16:44:22,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398264305] [2024-01-31 16:44:22,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:22,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:22,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:22,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:22,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:22,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 40 [2024-01-31 16:44:22,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 127 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2024-01-31 16:44:22,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:22,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 40 [2024-01-31 16:44:22,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:22,805 INFO L124 PetriNetUnfolderBase]: 116/288 cut-off events. [2024-01-31 16:44:22,807 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-01-31 16:44:22,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 288 events. 116/288 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1158 event pairs, 24 based on Foata normal form. 8/284 useless extension candidates. Maximal degree in co-relation 591. Up to 117 conditions per place. [2024-01-31 16:44:22,808 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-01-31 16:44:22,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 48 transitions, 202 flow [2024-01-31 16:44:22,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 16:44:22,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 16:44:22,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 163 transitions. [2024-01-31 16:44:22,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5821428571428572 [2024-01-31 16:44:22,810 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 127 flow. Second operand 7 states and 163 transitions. [2024-01-31 16:44:22,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 48 transitions, 202 flow [2024-01-31 16:44:22,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 48 transitions, 192 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-01-31 16:44:22,811 INFO L231 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2024-01-31 16:44:22,812 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2024-01-31 16:44:22,813 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 9 predicate places. [2024-01-31 16:44:22,814 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2024-01-31 16:44:22,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2024-01-31 16:44:22,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-01-31 16:44:22,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-01-31 16:44:22,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-01-31 16:44:22,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-01-31 16:44:22,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-01-31 16:44:22,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-31 16:44:22,840 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2024-01-31 16:44:22,842 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 16:44:22,843 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 16:44:22,851 INFO L503 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-01-31 16:44:22,851 INFO L504 ceAbstractionStarter]: WitnessConsidered=1 [2024-01-31 16:44:22,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:44:22 BasicIcfg [2024-01-31 16:44:22,853 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 16:44:22,853 INFO L158 Benchmark]: Toolchain (without parser) took 3891.83ms. Allocated memory was 182.5MB in the beginning and 295.7MB in the end (delta: 113.2MB). Free memory was 119.4MB in the beginning and 259.4MB in the end (delta: -140.1MB). Peak memory consumption was 108.3MB. Max. memory is 16.1GB. [2024-01-31 16:44:22,854 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 182.5MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:44:22,854 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 182.5MB. Free memory was 127.4MB in the beginning and 127.1MB in the end (delta: 260.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:44:22,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 703.22ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 119.4MB in the beginning and 183.4MB in the end (delta: -64.0MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. [2024-01-31 16:44:22,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.39ms. Allocated memory is still 224.4MB. Free memory was 183.4MB in the beginning and 181.1MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-31 16:44:22,856 INFO L158 Benchmark]: Boogie Preprocessor took 29.03ms. Allocated memory is still 224.4MB. Free memory was 181.1MB in the beginning and 179.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:44:22,856 INFO L158 Benchmark]: RCFGBuilder took 389.66ms. Allocated memory is still 224.4MB. Free memory was 179.2MB in the beginning and 156.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-31 16:44:22,856 INFO L158 Benchmark]: TraceAbstraction took 2732.44ms. Allocated memory was 224.4MB in the beginning and 295.7MB in the end (delta: 71.3MB). Free memory was 155.1MB in the beginning and 259.4MB in the end (delta: -104.4MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. [2024-01-31 16:44:22,859 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 0.17ms. Allocated memory is still 182.5MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 182.5MB. Free memory was 127.4MB in the beginning and 127.1MB in the end (delta: 260.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 703.22ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 119.4MB in the beginning and 183.4MB in the end (delta: -64.0MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.39ms. Allocated memory is still 224.4MB. Free memory was 183.4MB in the beginning and 181.1MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.03ms. Allocated memory is still 224.4MB. Free memory was 181.1MB in the beginning and 179.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 389.66ms. Allocated memory is still 224.4MB. Free memory was 179.2MB in the beginning and 156.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2732.44ms. Allocated memory was 224.4MB in the beginning and 295.7MB in the end (delta: 71.3MB). Free memory was 155.1MB in the beginning and 259.4MB in the end (delta: -104.4MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 64 locations, 5 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: 2.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 366 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 323 mSDsluCounter, 231 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 205 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 702 IncrementalHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 26 mSDtfsCounter, 702 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=4, InterpolantAutomatonStates: 46, 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, 1.0s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 858 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-31 16:44:22,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE