./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_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_40-traces-ex-6_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fced0e87 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_40-traces-ex-6_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_40-traces-ex-6_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.extract-columns-fced0e8-m [2024-01-31 16:06:34,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:06:34,804 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:06:34,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:06:34,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:06:34,837 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:06:34,839 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:06:34,839 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:06:34,840 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:06:34,843 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:06:34,844 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:06:34,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:06:34,845 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:06:34,846 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:06:34,846 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:06:34,847 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:06:34,847 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:06:34,847 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:06:34,847 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:06:34,848 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:06:34,848 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:06:34,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:06:34,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:06:34,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:06:34,849 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:06:34,850 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:06:34,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:06:34,850 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:06:34,851 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:06:34,851 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:06:34,852 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:06:34,852 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:06:34,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:06:34,853 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:06:34,853 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:06:34,854 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:06:34,854 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:06:34,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:06:34,854 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:06:34,855 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:06:34,855 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:06:34,855 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:06:34,855 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:06:34,856 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:06:35,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:06:35,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:06:35,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:06:35,157 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:06:35,157 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:06:35,159 INFO L431 ainManager$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_40-traces-ex-6_true.yml/witness.yml [2024-01-31 16:06:35,245 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:06:35,246 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:06:35,246 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-01-31 16:06:36,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:06:36,692 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:06:36,693 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-01-31 16:06:36,706 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e89927143/ebca0ad7eb7042e3a936ce9643d1f380/FLAG4682223f2 [2024-01-31 16:06:36,721 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e89927143/ebca0ad7eb7042e3a936ce9643d1f380 [2024-01-31 16:06:36,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:06:36,723 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:06:36,725 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:06:36,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:06:36,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:06:36,730 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:06:35" (1/2) ... [2024-01-31 16:06:36,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef64e5a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:06:36, skipping insertion in model container [2024-01-31 16:06:36,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:06:35" (1/2) ... [2024-01-31 16:06:36,732 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@caf41df and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:06:36, skipping insertion in model container [2024-01-31 16:06:36,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:06:36" (2/2) ... [2024-01-31 16:06:36,733 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef64e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:36, skipping insertion in model container [2024-01-31 16:06:36,733 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:06:36" (2/2) ... [2024-01-31 16:06:36,733 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:06:36,789 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:06:36,790 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-31 16:06:36,790 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (g == 2) && ((unsigned long )arg == 0UL) [2024-01-31 16:06:36,791 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (g == 1) && ((unsigned long )arg == 0UL) [2024-01-31 16:06:36,791 INFO L98 nessWitnessExtractor]: Location invariant before [L695-L695] g == 2 [2024-01-31 16:06:36,791 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-31 16:06:36,791 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] g == 2 [2024-01-31 16:06:36,791 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (g == 2) && ((unsigned long )arg == 0UL) [2024-01-31 16:06:36,791 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] g == 2 [2024-01-31 16:06:36,792 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (g == 1) && ((unsigned long )arg == 0UL) [2024-01-31 16:06:36,792 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (g == 2) && ((unsigned long )arg == 0UL) [2024-01-31 16:06:36,850 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:06:37,011 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_40-traces-ex-6_true.i[1088,1101] [2024-01-31 16:06:37,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:06:37,140 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 16:06:37,151 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_40-traces-ex-6_true.i[1088,1101] 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 [2024-01-31 16:06:37,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:06:37,294 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:06:37,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:37 WrapperNode [2024-01-31 16:06:37,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:06:37,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:06:37,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:06:37,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:06:37,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:37" (1/1) ... [2024-01-31 16:06:37,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:37" (1/1) ... [2024-01-31 16:06:37,338 INFO L138 Inliner]: procedures = 163, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-01-31 16:06:37,338 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:06:37,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:06:37,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:06:37,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:06:37,349 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:37" (1/1) ... [2024-01-31 16:06:37,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:37" (1/1) ... [2024-01-31 16:06:37,356 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:37" (1/1) ... [2024-01-31 16:06:37,370 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 5, 1]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-01-31 16:06:37,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:37" (1/1) ... [2024-01-31 16:06:37,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:37" (1/1) ... [2024-01-31 16:06:37,377 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:37" (1/1) ... [2024-01-31 16:06:37,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:37" (1/1) ... [2024-01-31 16:06:37,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:37" (1/1) ... [2024-01-31 16:06:37,385 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:37" (1/1) ... [2024-01-31 16:06:37,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:06:37,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:06:37,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:06:37,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:06:37,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:37" (1/1) ... [2024-01-31 16:06:37,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:06:37,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:06:37,416 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 16:06:37,417 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 16:06:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:06:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:06:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:06:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 16:06:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-31 16:06:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:06:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:06:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-31 16:06:37,447 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-31 16:06:37,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:06:37,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:06:37,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:06:37,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:06:37,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 16:06:37,449 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-31 16:06:37,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:06:37,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:06:37,451 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 16:06:37,568 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:06:37,570 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:06:37,762 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:06:37,764 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:06:37,971 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:06:37,972 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-31 16:06:37,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:06:37 BoogieIcfgContainer [2024-01-31 16:06:37,974 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:06:37,977 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:06:37,977 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:06:37,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:06:37,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:06:35" (1/4) ... [2024-01-31 16:06:37,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43dab868 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:06:37, skipping insertion in model container [2024-01-31 16:06:37,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:06:36" (2/4) ... [2024-01-31 16:06:37,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43dab868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:06:37, skipping insertion in model container [2024-01-31 16:06:37,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:06:37" (3/4) ... [2024-01-31 16:06:37,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43dab868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:06:37, skipping insertion in model container [2024-01-31 16:06:37,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:06:37" (4/4) ... [2024-01-31 16:06:37,985 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2024-01-31 16:06:38,005 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:06:38,005 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-01-31 16:06:38,006 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:06:38,076 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:06:38,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 92 flow [2024-01-31 16:06:38,165 INFO L124 PetriNetUnfolderBase]: 1/43 cut-off events. [2024-01-31 16:06:38,166 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:06:38,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 43 events. 1/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-01-31 16:06:38,169 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 44 transitions, 92 flow [2024-01-31 16:06:38,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 43 transitions, 89 flow [2024-01-31 16:06:38,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:06:38,199 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;@17d36065, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:06:38,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-01-31 16:06:38,204 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:06:38,205 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-31 16:06:38,205 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:06:38,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:06:38,206 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-31 16:06:38,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-01-31 16:06:38,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:06:38,211 INFO L85 PathProgramCache]: Analyzing trace with hash 7360, now seen corresponding path program 1 times [2024-01-31 16:06:38,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:06:38,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102949841] [2024-01-31 16:06:38,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:06:38,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:06:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:06:38,447 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 16:06:38,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:06:38,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102949841] [2024-01-31 16:06:38,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102949841] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:06:38,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:06:38,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-31 16:06:38,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632396760] [2024-01-31 16:06:38,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:06:38,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:06:38,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:06:38,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:06:38,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:06:38,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-01-31 16:06:38,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 43 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 16:06:38,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:06:38,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-01-31 16:06:38,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:06:38,697 INFO L124 PetriNetUnfolderBase]: 87/327 cut-off events. [2024-01-31 16:06:38,697 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:06:38,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 327 events. 87/327 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1730 event pairs, 60 based on Foata normal form. 26/335 useless extension candidates. Maximal degree in co-relation 541. Up to 165 conditions per place. [2024-01-31 16:06:38,703 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 27 selfloop transitions, 5 changer transitions 0/50 dead transitions. [2024-01-31 16:06:38,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 50 transitions, 167 flow [2024-01-31 16:06:38,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:06:38,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:06:38,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-01-31 16:06:38,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2024-01-31 16:06:38,718 INFO L175 Difference]: Start difference. First operand has 46 places, 43 transitions, 89 flow. Second operand 3 states and 96 transitions. [2024-01-31 16:06:38,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 50 transitions, 167 flow [2024-01-31 16:06:38,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 166 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 16:06:38,725 INFO L231 Difference]: Finished difference. Result has 48 places, 43 transitions, 118 flow [2024-01-31 16:06:38,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2024-01-31 16:06:38,731 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2024-01-31 16:06:38,731 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 118 flow [2024-01-31 16:06:38,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 16:06:38,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:06:38,732 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-31 16:06:38,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:06:38,733 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-01-31 16:06:38,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:06:38,734 INFO L85 PathProgramCache]: Analyzing trace with hash 219518181, now seen corresponding path program 1 times [2024-01-31 16:06:38,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:06:38,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675263039] [2024-01-31 16:06:38,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:06:38,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:06:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:06:38,955 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 16:06:38,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:06:38,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675263039] [2024-01-31 16:06:38,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675263039] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:06:38,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:06:38,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:06:38,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331971037] [2024-01-31 16:06:38,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:06:38,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:06:38,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:06:38,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:06:38,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:06:38,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 44 [2024-01-31 16:06:38,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 118 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) [2024-01-31 16:06:38,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:06:38,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 44 [2024-01-31 16:06:38,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:06:39,093 INFO L124 PetriNetUnfolderBase]: 58/265 cut-off events. [2024-01-31 16:06:39,093 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-01-31 16:06:39,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 265 events. 58/265 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1384 event pairs, 29 based on Foata normal form. 7/245 useless extension candidates. Maximal degree in co-relation 466. Up to 132 conditions per place. [2024-01-31 16:06:39,097 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 21 selfloop transitions, 2 changer transitions 0/47 dead transitions. [2024-01-31 16:06:39,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 47 transitions, 172 flow [2024-01-31 16:06:39,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:06:39,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:06:39,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions. [2024-01-31 16:06:39,104 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-01-31 16:06:39,105 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 118 flow. Second operand 4 states and 121 transitions. [2024-01-31 16:06:39,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 47 transitions, 172 flow [2024-01-31 16:06:39,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 47 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:06:39,113 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 108 flow [2024-01-31 16:06:39,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2024-01-31 16:06:39,115 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2024-01-31 16:06:39,115 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 108 flow [2024-01-31 16:06:39,116 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) [2024-01-31 16:06:39,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:06:39,116 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:06:39,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:06:39,118 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-01-31 16:06:39,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:06:39,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1568825269, now seen corresponding path program 1 times [2024-01-31 16:06:39,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:06:39,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701540224] [2024-01-31 16:06:39,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:06:39,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:06:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:06:39,222 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 16:06:39,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:06:39,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701540224] [2024-01-31 16:06:39,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701540224] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:06:39,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:06:39,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:06:39,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244141993] [2024-01-31 16:06:39,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:06:39,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:06:39,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:06:39,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:06:39,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:06:39,262 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 44 [2024-01-31 16:06:39,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 16:06:39,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:06:39,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 44 [2024-01-31 16:06:39,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:06:39,369 INFO L124 PetriNetUnfolderBase]: 103/332 cut-off events. [2024-01-31 16:06:39,369 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2024-01-31 16:06:39,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 332 events. 103/332 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1608 event pairs, 12 based on Foata normal form. 9/330 useless extension candidates. Maximal degree in co-relation 655. Up to 144 conditions per place. [2024-01-31 16:06:39,371 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 36 selfloop transitions, 6 changer transitions 0/53 dead transitions. [2024-01-31 16:06:39,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 53 transitions, 220 flow [2024-01-31 16:06:39,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:06:39,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:06:39,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-01-31 16:06:39,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5284090909090909 [2024-01-31 16:06:39,375 INFO L175 Difference]: Start difference. First operand has 47 places, 41 transitions, 108 flow. Second operand 4 states and 93 transitions. [2024-01-31 16:06:39,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 53 transitions, 220 flow [2024-01-31 16:06:39,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 53 transitions, 217 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:06:39,378 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 111 flow [2024-01-31 16:06:39,378 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=111, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2024-01-31 16:06:39,380 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2024-01-31 16:06:39,380 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 111 flow [2024-01-31 16:06:39,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 16:06:39,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:06:39,381 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:06:39,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:06:39,381 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-01-31 16:06:39,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:06:39,382 INFO L85 PathProgramCache]: Analyzing trace with hash -281005202, now seen corresponding path program 1 times [2024-01-31 16:06:39,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:06:39,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809438244] [2024-01-31 16:06:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:06:39,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:06:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:06:39,467 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 16:06:39,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:06:39,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809438244] [2024-01-31 16:06:39,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809438244] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:06:39,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:06:39,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:06:39,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369169477] [2024-01-31 16:06:39,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:06:39,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:06:39,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:06:39,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:06:39,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:06:39,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 44 [2024-01-31 16:06:39,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 111 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 16:06:39,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:06:39,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 44 [2024-01-31 16:06:39,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:06:39,576 INFO L124 PetriNetUnfolderBase]: 92/271 cut-off events. [2024-01-31 16:06:39,576 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-01-31 16:06:39,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 271 events. 92/271 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1120 event pairs, 10 based on Foata normal form. 24/291 useless extension candidates. Maximal degree in co-relation 577. Up to 144 conditions per place. [2024-01-31 16:06:39,578 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 31 selfloop transitions, 3 changer transitions 3/48 dead transitions. [2024-01-31 16:06:39,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 48 transitions, 201 flow [2024-01-31 16:06:39,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:06:39,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:06:39,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions. [2024-01-31 16:06:39,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5965909090909091 [2024-01-31 16:06:39,580 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 111 flow. Second operand 4 states and 105 transitions. [2024-01-31 16:06:39,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 48 transitions, 201 flow [2024-01-31 16:06:39,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 48 transitions, 193 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-31 16:06:39,582 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 91 flow [2024-01-31 16:06:39,582 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2024-01-31 16:06:39,583 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2024-01-31 16:06:39,583 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 91 flow [2024-01-31 16:06:39,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 16:06:39,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:06:39,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:06:39,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 16:06:39,584 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-01-31 16:06:39,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:06:39,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1757739046, now seen corresponding path program 1 times [2024-01-31 16:06:39,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:06:39,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646494807] [2024-01-31 16:06:39,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:06:39,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:06:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:06:39,645 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 16:06:39,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:06:39,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646494807] [2024-01-31 16:06:39,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646494807] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:06:39,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:06:39,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:06:39,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738793053] [2024-01-31 16:06:39,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:06:39,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:06:39,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:06:39,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:06:39,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:06:39,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 44 [2024-01-31 16:06:39,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 16:06:39,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:06:39,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 44 [2024-01-31 16:06:39,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:06:39,742 INFO L124 PetriNetUnfolderBase]: 90/256 cut-off events. [2024-01-31 16:06:39,743 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2024-01-31 16:06:39,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 256 events. 90/256 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1067 event pairs, 50 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 550. Up to 120 conditions per place. [2024-01-31 16:06:39,744 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 25 selfloop transitions, 3 changer transitions 15/52 dead transitions. [2024-01-31 16:06:39,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 52 transitions, 225 flow [2024-01-31 16:06:39,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 16:06:39,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 16:06:39,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2024-01-31 16:06:39,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5909090909090909 [2024-01-31 16:06:39,746 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 91 flow. Second operand 5 states and 130 transitions. [2024-01-31 16:06:39,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 52 transitions, 225 flow [2024-01-31 16:06:39,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 52 transitions, 215 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-31 16:06:39,748 INFO L231 Difference]: Finished difference. Result has 46 places, 32 transitions, 98 flow [2024-01-31 16:06:39,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=98, PETRI_PLACES=46, PETRI_TRANSITIONS=32} [2024-01-31 16:06:39,749 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2024-01-31 16:06:39,749 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 98 flow [2024-01-31 16:06:39,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 16:06:39,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:06:39,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:06:39,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-31 16:06:39,750 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-01-31 16:06:39,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:06:39,751 INFO L85 PathProgramCache]: Analyzing trace with hash -220655198, now seen corresponding path program 1 times [2024-01-31 16:06:39,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:06:39,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996881201] [2024-01-31 16:06:39,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:06:39,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:06:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:06:39,828 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 16:06:39,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:06:39,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996881201] [2024-01-31 16:06:39,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996881201] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:06:39,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:06:39,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:06:39,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838158123] [2024-01-31 16:06:39,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:06:39,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:06:39,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:06:39,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:06:39,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:06:39,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 44 [2024-01-31 16:06:39,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 16:06:39,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:06:39,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 44 [2024-01-31 16:06:39,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:06:39,866 INFO L124 PetriNetUnfolderBase]: 18/110 cut-off events. [2024-01-31 16:06:39,867 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-01-31 16:06:39,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 110 events. 18/110 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 361 event pairs, 7 based on Foata normal form. 5/111 useless extension candidates. Maximal degree in co-relation 213. Up to 40 conditions per place. [2024-01-31 16:06:39,867 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 14 selfloop transitions, 5 changer transitions 3/38 dead transitions. [2024-01-31 16:06:39,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 38 transitions, 159 flow [2024-01-31 16:06:39,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:06:39,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:06:39,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-01-31 16:06:39,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7954545454545454 [2024-01-31 16:06:39,869 INFO L175 Difference]: Start difference. First operand has 46 places, 32 transitions, 98 flow. Second operand 3 states and 105 transitions. [2024-01-31 16:06:39,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 38 transitions, 159 flow [2024-01-31 16:06:39,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 143 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-01-31 16:06:39,870 INFO L231 Difference]: Finished difference. Result has 41 places, 32 transitions, 99 flow [2024-01-31 16:06:39,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2024-01-31 16:06:39,871 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -5 predicate places. [2024-01-31 16:06:39,872 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 32 transitions, 99 flow [2024-01-31 16:06:39,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 16:06:39,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:06:39,872 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:06:39,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-31 16:06:39,872 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-01-31 16:06:39,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:06:39,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1773061399, now seen corresponding path program 1 times [2024-01-31 16:06:39,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:06:39,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251342634] [2024-01-31 16:06:39,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:06:39,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:06:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:06:39,987 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 16:06:39,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:06:39,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251342634] [2024-01-31 16:06:39,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251342634] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:06:39,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:06:39,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 16:06:39,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640248120] [2024-01-31 16:06:39,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:06:39,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:06:39,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:06:39,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:06:39,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:06:39,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 44 [2024-01-31 16:06:39,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 99 flow. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 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 16:06:39,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:06:39,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 44 [2024-01-31 16:06:39,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:06:40,025 INFO L124 PetriNetUnfolderBase]: 12/88 cut-off events. [2024-01-31 16:06:40,026 INFO L125 PetriNetUnfolderBase]: For 37/38 co-relation queries the response was YES. [2024-01-31 16:06:40,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 88 events. 12/88 cut-off events. For 37/38 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 202 event pairs, 5 based on Foata normal form. 3/89 useless extension candidates. Maximal degree in co-relation 171. Up to 32 conditions per place. [2024-01-31 16:06:40,026 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 10 selfloop transitions, 5 changer transitions 2/32 dead transitions. [2024-01-31 16:06:40,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 32 transitions, 128 flow [2024-01-31 16:06:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:06:40,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:06:40,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2024-01-31 16:06:40,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7159090909090909 [2024-01-31 16:06:40,028 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 99 flow. Second operand 4 states and 126 transitions. [2024-01-31 16:06:40,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 32 transitions, 128 flow [2024-01-31 16:06:40,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 110 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-01-31 16:06:40,030 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 82 flow [2024-01-31 16:06:40,030 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2024-01-31 16:06:40,031 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2024-01-31 16:06:40,031 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 82 flow [2024-01-31 16:06:40,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 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 16:06:40,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:06:40,031 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] [2024-01-31 16:06:40,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-31 16:06:40,032 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-01-31 16:06:40,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:06:40,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1814511948, now seen corresponding path program 1 times [2024-01-31 16:06:40,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:06:40,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920943291] [2024-01-31 16:06:40,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:06:40,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:06:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:06:40,139 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 16:06:40,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:06:40,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920943291] [2024-01-31 16:06:40,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920943291] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:06:40,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:06:40,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 16:06:40,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443670756] [2024-01-31 16:06:40,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:06:40,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:06:40,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:06:40,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:06:40,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:06:40,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 44 [2024-01-31 16:06:40,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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 16:06:40,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:06:40,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 44 [2024-01-31 16:06:40,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:06:40,174 INFO L124 PetriNetUnfolderBase]: 10/63 cut-off events. [2024-01-31 16:06:40,174 INFO L125 PetriNetUnfolderBase]: For 16/17 co-relation queries the response was YES. [2024-01-31 16:06:40,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 63 events. 10/63 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 6 based on Foata normal form. 1/59 useless extension candidates. Maximal degree in co-relation 114. Up to 23 conditions per place. [2024-01-31 16:06:40,175 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2024-01-31 16:06:40,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 117 flow [2024-01-31 16:06:40,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:06:40,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:06:40,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2024-01-31 16:06:40,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7159090909090909 [2024-01-31 16:06:40,176 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 82 flow. Second operand 4 states and 126 transitions. [2024-01-31 16:06:40,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 117 flow [2024-01-31 16:06:40,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 103 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-31 16:06:40,177 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2024-01-31 16:06:40,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2024-01-31 16:06:40,178 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -11 predicate places. [2024-01-31 16:06:40,178 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2024-01-31 16:06:40,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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 16:06:40,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 19 remaining) [2024-01-31 16:06:40,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 19 remaining) [2024-01-31 16:06:40,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 19 remaining) [2024-01-31 16:06:40,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (15 of 19 remaining) [2024-01-31 16:06:40,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 19 remaining) [2024-01-31 16:06:40,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 19 remaining) [2024-01-31 16:06:40,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 19 remaining) [2024-01-31 16:06:40,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 19 remaining) [2024-01-31 16:06:40,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 19 remaining) [2024-01-31 16:06:40,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 19 remaining) [2024-01-31 16:06:40,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 19 remaining) [2024-01-31 16:06:40,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 19 remaining) [2024-01-31 16:06:40,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 19 remaining) [2024-01-31 16:06:40,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 19 remaining) [2024-01-31 16:06:40,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 19 remaining) [2024-01-31 16:06:40,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 19 remaining) [2024-01-31 16:06:40,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 19 remaining) [2024-01-31 16:06:40,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 19 remaining) [2024-01-31 16:06:40,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 19 remaining) [2024-01-31 16:06:40,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-31 16:06:40,185 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:06:40,190 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 16:06:40,190 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 16:06:40,193 INFO L503 ceAbstractionStarter]: Automizer considered 10 witness invariants [2024-01-31 16:06:40,194 INFO L504 ceAbstractionStarter]: WitnessConsidered=10 [2024-01-31 16:06:40,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:06:40 BasicIcfg [2024-01-31 16:06:40,195 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 16:06:40,195 INFO L158 Benchmark]: Toolchain (without parser) took 3472.80ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 92.7MB in the beginning and 76.0MB in the end (delta: 16.7MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2024-01-31 16:06:40,195 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 153.1MB. Free memory was 115.9MB in the beginning and 115.8MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:06:40,196 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 153.1MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:06:40,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.36ms. Allocated memory is still 153.1MB. Free memory was 92.7MB in the beginning and 68.1MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-31 16:06:40,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.01ms. Allocated memory is still 153.1MB. Free memory was 68.1MB in the beginning and 66.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:06:40,196 INFO L158 Benchmark]: Boogie Preprocessor took 49.16ms. Allocated memory is still 153.1MB. Free memory was 66.0MB in the beginning and 63.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:06:40,197 INFO L158 Benchmark]: RCFGBuilder took 585.38ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 63.9MB in the beginning and 146.5MB in the end (delta: -82.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-31 16:06:40,197 INFO L158 Benchmark]: TraceAbstraction took 2217.60ms. Allocated memory is still 188.7MB. Free memory was 145.6MB in the beginning and 76.0MB in the end (delta: 69.6MB). Peak memory consumption was 71.4MB. Max. memory is 16.1GB. [2024-01-31 16:06:40,199 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 0.18ms. Allocated memory is still 153.1MB. Free memory was 115.9MB in the beginning and 115.8MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 153.1MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.36ms. Allocated memory is still 153.1MB. Free memory was 92.7MB in the beginning and 68.1MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.01ms. Allocated memory is still 153.1MB. Free memory was 68.1MB in the beginning and 66.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.16ms. Allocated memory is still 153.1MB. Free memory was 66.0MB in the beginning and 63.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 585.38ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 63.9MB in the beginning and 146.5MB in the end (delta: -82.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2217.60ms. Allocated memory is still 188.7MB. Free memory was 145.6MB in the beginning and 76.0MB in the end (delta: 69.6MB). Peak memory consumption was 71.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 695]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 697]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 698]: 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: 685]: 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: 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: 691]: 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, 69 locations, 19 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: 2.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 315 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 204 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 431 IncrementalHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 41 mSDtfsCounter, 431 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=1, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 483 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 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-31 16:06:40,225 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