/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:46:58,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:46:58,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:46:58,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:46:58,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:46:58,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:46:58,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:46:58,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:46:58,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:46:58,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:46:58,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:46:58,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:46:58,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:46:58,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:46:58,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:46:58,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:46:58,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:46:58,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:46:58,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:46:58,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:46:58,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:46:58,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:46:58,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:46:58,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:46:58,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 18:46:58,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:46:58,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:46:58,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:46:58,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:46:58,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:46:58,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:46:58,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:46:58,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:46:58,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:46:58,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:46:58,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:46:58,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-05 18:46:58,874 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:46:58,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:46:58,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:46:58,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:46:58,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:46:58,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:46:58,877 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:46:58,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:46:58,877 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:46:58,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:46:58,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:46:58,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:46:58,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:46:58,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:46:58,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:46:58,879 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:46:58,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:46:58,879 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:46:58,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:46:58,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:46:58,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:46:58,879 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:46:58,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:46:58,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:46:58,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:46:58,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:46:58,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:46:58,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:46:58,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:46:58,880 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:46:58,880 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:46:58,880 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:46:59,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:46:59,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:46:59,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:46:59,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:46:59,159 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:46:59,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2022-12-05 18:47:00,138 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:47:00,347 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:47:00,347 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2022-12-05 18:47:00,356 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1d876fe1/7c787506ce604e63bd2d28babde2636d/FLAG3486f9774 [2022-12-05 18:47:00,367 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1d876fe1/7c787506ce604e63bd2d28babde2636d [2022-12-05 18:47:00,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:47:00,369 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:47:00,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:47:00,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:47:00,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:47:00,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:47:00" (1/1) ... [2022-12-05 18:47:00,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21fdf24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:00, skipping insertion in model container [2022-12-05 18:47:00,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:47:00" (1/1) ... [2022-12-05 18:47:00,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:47:00,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:47:00,542 WARN L237 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_24-multiple-protecting_true.i[1096,1109] [2022-12-05 18:47:00,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:47:00,689 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:47:00,699 WARN L237 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_24-multiple-protecting_true.i[1096,1109] [2022-12-05 18:47:00,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:47:00,753 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:47:00,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:00 WrapperNode [2022-12-05 18:47:00,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:47:00,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:47:00,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:47:00,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:47:00,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:00" (1/1) ... [2022-12-05 18:47:00,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:00" (1/1) ... [2022-12-05 18:47:00,823 INFO L138 Inliner]: procedures = 162, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 90 [2022-12-05 18:47:00,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:47:00,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:47:00,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:47:00,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:47:00,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:00" (1/1) ... [2022-12-05 18:47:00,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:00" (1/1) ... [2022-12-05 18:47:00,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:00" (1/1) ... [2022-12-05 18:47:00,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:00" (1/1) ... [2022-12-05 18:47:00,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:00" (1/1) ... [2022-12-05 18:47:00,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:00" (1/1) ... [2022-12-05 18:47:00,861 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:00" (1/1) ... [2022-12-05 18:47:00,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:00" (1/1) ... [2022-12-05 18:47:00,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:47:00,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:47:00,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:47:00,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:47:00,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:00" (1/1) ... [2022-12-05 18:47:00,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:47:00,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:47:00,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 18:47:00,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 18:47:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 18:47:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:47:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 18:47:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:47:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:47:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 18:47:00,952 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 18:47:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:47:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:47:00,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:47:00,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:47:00,954 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:47:01,065 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:47:01,067 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:47:01,278 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:47:01,284 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:47:01,284 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 18:47:01,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:47:01 BoogieIcfgContainer [2022-12-05 18:47:01,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:47:01,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:47:01,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:47:01,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:47:01,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:47:00" (1/3) ... [2022-12-05 18:47:01,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d43360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:47:01, skipping insertion in model container [2022-12-05 18:47:01,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:47:00" (2/3) ... [2022-12-05 18:47:01,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d43360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:47:01, skipping insertion in model container [2022-12-05 18:47:01,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:47:01" (3/3) ... [2022-12-05 18:47:01,291 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2022-12-05 18:47:01,304 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:47:01,304 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-05 18:47:01,304 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:47:01,379 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 18:47:01,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 131 transitions, 270 flow [2022-12-05 18:47:01,485 INFO L130 PetriNetUnfolder]: 4/130 cut-off events. [2022-12-05 18:47:01,485 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 18:47:01,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 130 events. 4/130 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2022-12-05 18:47:01,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 131 transitions, 270 flow [2022-12-05 18:47:01,496 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 117 transitions, 237 flow [2022-12-05 18:47:01,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:47:01,511 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=LoopsAndPotentialCycles, 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;@187584dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:47:01,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-05 18:47:01,528 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-12-05 18:47:01,528 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:47:01,529 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:01,529 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:01,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 18:47:01,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:01,534 INFO L85 PathProgramCache]: Analyzing trace with hash -902533474, now seen corresponding path program 1 times [2022-12-05 18:47:01,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:01,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615587036] [2022-12-05 18:47:01,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:01,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:02,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:02,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:02,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615587036] [2022-12-05 18:47:02,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615587036] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:02,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:02,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:47:02,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061209610] [2022-12-05 18:47:02,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:02,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:47:02,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:02,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:47:02,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:47:02,048 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 131 [2022-12-05 18:47:02,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 117 transitions, 237 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2022-12-05 18:47:02,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:02,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 131 [2022-12-05 18:47:02,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:02,259 INFO L130 PetriNetUnfolder]: 89/691 cut-off events. [2022-12-05 18:47:02,260 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 18:47:02,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 691 events. 89/691 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4043 event pairs, 21 based on Foata normal form. 16/695 useless extension candidates. Maximal degree in co-relation 869. Up to 72 conditions per place. [2022-12-05 18:47:02,267 INFO L137 encePairwiseOnDemand]: 110/131 looper letters, 35 selfloop transitions, 23 changer transitions 5/149 dead transitions. [2022-12-05 18:47:02,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 149 transitions, 427 flow [2022-12-05 18:47:02,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:47:02,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:47:02,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 937 transitions. [2022-12-05 18:47:02,286 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7947413061916879 [2022-12-05 18:47:02,287 INFO L175 Difference]: Start difference. First operand has 118 places, 117 transitions, 237 flow. Second operand 9 states and 937 transitions. [2022-12-05 18:47:02,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 149 transitions, 427 flow [2022-12-05 18:47:02,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 149 transitions, 426 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 18:47:02,293 INFO L231 Difference]: Finished difference. Result has 129 places, 128 transitions, 373 flow [2022-12-05 18:47:02,295 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=373, PETRI_PLACES=129, PETRI_TRANSITIONS=128} [2022-12-05 18:47:02,298 INFO L294 CegarLoopForPetriNet]: 118 programPoint places, 11 predicate places. [2022-12-05 18:47:02,298 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 128 transitions, 373 flow [2022-12-05 18:47:02,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2022-12-05 18:47:02,299 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:02,299 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:02,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:47:02,300 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 18:47:02,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:02,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1300246219, now seen corresponding path program 1 times [2022-12-05 18:47:02,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:02,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777555218] [2022-12-05 18:47:02,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:02,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:02,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:02,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:02,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777555218] [2022-12-05 18:47:02,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777555218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:02,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:02,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:47:02,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157305409] [2022-12-05 18:47:02,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:02,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:47:02,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:02,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:47:02,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:47:02,528 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 131 [2022-12-05 18:47:02,528 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 128 transitions, 373 flow. Second operand has 6 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 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) [2022-12-05 18:47:02,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:02,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 131 [2022-12-05 18:47:02,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:02,699 INFO L130 PetriNetUnfolder]: 67/506 cut-off events. [2022-12-05 18:47:02,699 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-12-05 18:47:02,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 893 conditions, 506 events. 67/506 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2408 event pairs, 7 based on Foata normal form. 13/517 useless extension candidates. Maximal degree in co-relation 835. Up to 124 conditions per place. [2022-12-05 18:47:02,702 INFO L137 encePairwiseOnDemand]: 124/131 looper letters, 43 selfloop transitions, 7 changer transitions 0/136 dead transitions. [2022-12-05 18:47:02,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 136 transitions, 463 flow [2022-12-05 18:47:02,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 18:47:02,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 18:47:02,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 477 transitions. [2022-12-05 18:47:02,704 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7282442748091603 [2022-12-05 18:47:02,705 INFO L175 Difference]: Start difference. First operand has 129 places, 128 transitions, 373 flow. Second operand 5 states and 477 transitions. [2022-12-05 18:47:02,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 136 transitions, 463 flow [2022-12-05 18:47:02,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 136 transitions, 445 flow, removed 7 selfloop flow, removed 3 redundant places. [2022-12-05 18:47:02,721 INFO L231 Difference]: Finished difference. Result has 129 places, 123 transitions, 342 flow [2022-12-05 18:47:02,724 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=342, PETRI_PLACES=129, PETRI_TRANSITIONS=123} [2022-12-05 18:47:02,725 INFO L294 CegarLoopForPetriNet]: 118 programPoint places, 11 predicate places. [2022-12-05 18:47:02,725 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 123 transitions, 342 flow [2022-12-05 18:47:02,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 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) [2022-12-05 18:47:02,725 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:02,726 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:02,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:47:02,726 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 18:47:02,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:02,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1672792682, now seen corresponding path program 1 times [2022-12-05 18:47:02,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:02,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56639594] [2022-12-05 18:47:02,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:02,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:02,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:02,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:02,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56639594] [2022-12-05 18:47:02,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56639594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:02,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:02,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:47:02,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056444822] [2022-12-05 18:47:02,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:02,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:47:02,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:02,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:47:02,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:47:02,974 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2022-12-05 18:47:02,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 123 transitions, 342 flow. Second operand has 8 states, 8 states have (on average 95.5) internal successors, (764), 8 states have internal predecessors, (764), 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) [2022-12-05 18:47:02,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:02,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2022-12-05 18:47:02,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:03,148 INFO L130 PetriNetUnfolder]: 23/326 cut-off events. [2022-12-05 18:47:03,149 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-12-05 18:47:03,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 326 events. 23/326 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1024 event pairs, 1 based on Foata normal form. 8/334 useless extension candidates. Maximal degree in co-relation 485. Up to 23 conditions per place. [2022-12-05 18:47:03,150 INFO L137 encePairwiseOnDemand]: 111/131 looper letters, 22 selfloop transitions, 31 changer transitions 10/146 dead transitions. [2022-12-05 18:47:03,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 146 transitions, 534 flow [2022-12-05 18:47:03,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-05 18:47:03,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-05 18:47:03,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1749 transitions. [2022-12-05 18:47:03,153 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7417302798982188 [2022-12-05 18:47:03,153 INFO L175 Difference]: Start difference. First operand has 129 places, 123 transitions, 342 flow. Second operand 18 states and 1749 transitions. [2022-12-05 18:47:03,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 146 transitions, 534 flow [2022-12-05 18:47:03,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 146 transitions, 527 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 18:47:03,157 INFO L231 Difference]: Finished difference. Result has 145 places, 126 transitions, 445 flow [2022-12-05 18:47:03,157 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=445, PETRI_PLACES=145, PETRI_TRANSITIONS=126} [2022-12-05 18:47:03,157 INFO L294 CegarLoopForPetriNet]: 118 programPoint places, 27 predicate places. [2022-12-05 18:47:03,158 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 126 transitions, 445 flow [2022-12-05 18:47:03,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 95.5) internal successors, (764), 8 states have internal predecessors, (764), 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) [2022-12-05 18:47:03,158 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:03,158 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:03,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:47:03,159 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 18:47:03,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash 217567650, now seen corresponding path program 1 times [2022-12-05 18:47:03,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:03,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572154530] [2022-12-05 18:47:03,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:03,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:03,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:03,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572154530] [2022-12-05 18:47:03,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572154530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:03,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:03,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:47:03,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731248352] [2022-12-05 18:47:03,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:03,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:47:03,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:03,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:47:03,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:47:03,256 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 131 [2022-12-05 18:47:03,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 126 transitions, 445 flow. Second operand has 5 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 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) [2022-12-05 18:47:03,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:03,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 131 [2022-12-05 18:47:03,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:03,353 INFO L130 PetriNetUnfolder]: 65/499 cut-off events. [2022-12-05 18:47:03,353 INFO L131 PetriNetUnfolder]: For 302/303 co-relation queries the response was YES. [2022-12-05 18:47:03,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 499 events. 65/499 cut-off events. For 302/303 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2296 event pairs, 13 based on Foata normal form. 7/502 useless extension candidates. Maximal degree in co-relation 923. Up to 75 conditions per place. [2022-12-05 18:47:03,355 INFO L137 encePairwiseOnDemand]: 120/131 looper letters, 28 selfloop transitions, 23 changer transitions 12/154 dead transitions. [2022-12-05 18:47:03,355 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 154 transitions, 689 flow [2022-12-05 18:47:03,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:47:03,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:47:03,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 917 transitions. [2022-12-05 18:47:03,358 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-12-05 18:47:03,358 INFO L175 Difference]: Start difference. First operand has 145 places, 126 transitions, 445 flow. Second operand 9 states and 917 transitions. [2022-12-05 18:47:03,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 154 transitions, 689 flow [2022-12-05 18:47:03,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 154 transitions, 608 flow, removed 8 selfloop flow, removed 11 redundant places. [2022-12-05 18:47:03,362 INFO L231 Difference]: Finished difference. Result has 145 places, 132 transitions, 491 flow [2022-12-05 18:47:03,362 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=491, PETRI_PLACES=145, PETRI_TRANSITIONS=132} [2022-12-05 18:47:03,364 INFO L294 CegarLoopForPetriNet]: 118 programPoint places, 27 predicate places. [2022-12-05 18:47:03,364 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 132 transitions, 491 flow [2022-12-05 18:47:03,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 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) [2022-12-05 18:47:03,364 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:03,365 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:03,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:47:03,365 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 18:47:03,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:03,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1818180068, now seen corresponding path program 1 times [2022-12-05 18:47:03,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:03,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335154276] [2022-12-05 18:47:03,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:03,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:03,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:03,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:03,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335154276] [2022-12-05 18:47:03,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335154276] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:03,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:03,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 18:47:03,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152828866] [2022-12-05 18:47:03,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:03,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 18:47:03,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:03,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 18:47:03,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 18:47:03,468 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 131 [2022-12-05 18:47:03,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 132 transitions, 491 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2022-12-05 18:47:03,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:03,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 131 [2022-12-05 18:47:03,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:03,542 INFO L130 PetriNetUnfolder]: 26/361 cut-off events. [2022-12-05 18:47:03,542 INFO L131 PetriNetUnfolder]: For 121/121 co-relation queries the response was YES. [2022-12-05 18:47:03,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 361 events. 26/361 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1387 event pairs, 12 based on Foata normal form. 18/379 useless extension candidates. Maximal degree in co-relation 675. Up to 73 conditions per place. [2022-12-05 18:47:03,546 INFO L137 encePairwiseOnDemand]: 114/131 looper letters, 20 selfloop transitions, 16 changer transitions 5/135 dead transitions. [2022-12-05 18:47:03,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 135 transitions, 543 flow [2022-12-05 18:47:03,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 18:47:03,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 18:47:03,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2022-12-05 18:47:03,548 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8091603053435115 [2022-12-05 18:47:03,549 INFO L175 Difference]: Start difference. First operand has 145 places, 132 transitions, 491 flow. Second operand 3 states and 318 transitions. [2022-12-05 18:47:03,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 135 transitions, 543 flow [2022-12-05 18:47:03,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 135 transitions, 531 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-12-05 18:47:03,552 INFO L231 Difference]: Finished difference. Result has 142 places, 127 transitions, 483 flow [2022-12-05 18:47:03,552 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=483, PETRI_PLACES=142, PETRI_TRANSITIONS=127} [2022-12-05 18:47:03,554 INFO L294 CegarLoopForPetriNet]: 118 programPoint places, 24 predicate places. [2022-12-05 18:47:03,554 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 127 transitions, 483 flow [2022-12-05 18:47:03,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2022-12-05 18:47:03,555 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:03,555 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:03,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:47:03,555 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 18:47:03,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:03,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1006671587, now seen corresponding path program 1 times [2022-12-05 18:47:03,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:03,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97184105] [2022-12-05 18:47:03,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:03,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:03,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:03,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:03,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97184105] [2022-12-05 18:47:03,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97184105] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:03,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:03,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:47:03,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623313946] [2022-12-05 18:47:03,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:03,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:47:03,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:03,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:47:03,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:47:03,851 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 131 [2022-12-05 18:47:03,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 127 transitions, 483 flow. Second operand has 7 states, 7 states have (on average 83.57142857142857) internal successors, (585), 7 states have internal predecessors, (585), 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) [2022-12-05 18:47:03,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:03,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 131 [2022-12-05 18:47:03,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:03,939 INFO L130 PetriNetUnfolder]: 24/313 cut-off events. [2022-12-05 18:47:03,939 INFO L131 PetriNetUnfolder]: For 174/178 co-relation queries the response was YES. [2022-12-05 18:47:03,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 719 conditions, 313 events. 24/313 cut-off events. For 174/178 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1019 event pairs, 8 based on Foata normal form. 2/315 useless extension candidates. Maximal degree in co-relation 677. Up to 92 conditions per place. [2022-12-05 18:47:03,940 INFO L137 encePairwiseOnDemand]: 125/131 looper letters, 41 selfloop transitions, 6 changer transitions 14/124 dead transitions. [2022-12-05 18:47:03,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 124 transitions, 568 flow [2022-12-05 18:47:03,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 18:47:03,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 18:47:03,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 522 transitions. [2022-12-05 18:47:03,942 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6641221374045801 [2022-12-05 18:47:03,942 INFO L175 Difference]: Start difference. First operand has 142 places, 127 transitions, 483 flow. Second operand 6 states and 522 transitions. [2022-12-05 18:47:03,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 124 transitions, 568 flow [2022-12-05 18:47:03,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 124 transitions, 523 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-12-05 18:47:03,945 INFO L231 Difference]: Finished difference. Result has 131 places, 105 transitions, 343 flow [2022-12-05 18:47:03,945 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=343, PETRI_PLACES=131, PETRI_TRANSITIONS=105} [2022-12-05 18:47:03,946 INFO L294 CegarLoopForPetriNet]: 118 programPoint places, 13 predicate places. [2022-12-05 18:47:03,946 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 105 transitions, 343 flow [2022-12-05 18:47:03,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 83.57142857142857) internal successors, (585), 7 states have internal predecessors, (585), 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) [2022-12-05 18:47:03,946 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:03,947 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:03,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 18:47:03,947 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 18:47:03,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:03,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1691811408, now seen corresponding path program 1 times [2022-12-05 18:47:03,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:03,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522106133] [2022-12-05 18:47:03,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:03,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:04,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:04,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:04,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522106133] [2022-12-05 18:47:04,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522106133] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:04,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:04,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:47:04,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129188122] [2022-12-05 18:47:04,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:04,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:47:04,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:04,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:47:04,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:47:04,199 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 131 [2022-12-05 18:47:04,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 105 transitions, 343 flow. Second operand has 8 states, 8 states have (on average 83.375) internal successors, (667), 8 states have internal predecessors, (667), 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) [2022-12-05 18:47:04,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:04,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 131 [2022-12-05 18:47:04,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:04,281 INFO L130 PetriNetUnfolder]: 11/202 cut-off events. [2022-12-05 18:47:04,281 INFO L131 PetriNetUnfolder]: For 93/95 co-relation queries the response was YES. [2022-12-05 18:47:04,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 202 events. 11/202 cut-off events. For 93/95 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 433 event pairs, 0 based on Foata normal form. 11/213 useless extension candidates. Maximal degree in co-relation 416. Up to 39 conditions per place. [2022-12-05 18:47:04,282 INFO L137 encePairwiseOnDemand]: 125/131 looper letters, 36 selfloop transitions, 8 changer transitions 2/107 dead transitions. [2022-12-05 18:47:04,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 107 transitions, 442 flow [2022-12-05 18:47:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 18:47:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 18:47:04,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 517 transitions. [2022-12-05 18:47:04,284 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6577608142493638 [2022-12-05 18:47:04,284 INFO L175 Difference]: Start difference. First operand has 131 places, 105 transitions, 343 flow. Second operand 6 states and 517 transitions. [2022-12-05 18:47:04,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 107 transitions, 442 flow [2022-12-05 18:47:04,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 107 transitions, 389 flow, removed 5 selfloop flow, removed 11 redundant places. [2022-12-05 18:47:04,286 INFO L231 Difference]: Finished difference. Result has 116 places, 102 transitions, 294 flow [2022-12-05 18:47:04,286 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=294, PETRI_PLACES=116, PETRI_TRANSITIONS=102} [2022-12-05 18:47:04,287 INFO L294 CegarLoopForPetriNet]: 118 programPoint places, -2 predicate places. [2022-12-05 18:47:04,287 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 102 transitions, 294 flow [2022-12-05 18:47:04,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 83.375) internal successors, (667), 8 states have internal predecessors, (667), 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) [2022-12-05 18:47:04,287 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:47:04,287 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:04,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 18:47:04,288 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 18:47:04,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:47:04,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1268198817, now seen corresponding path program 1 times [2022-12-05 18:47:04,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:47:04,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950451017] [2022-12-05 18:47:04,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:47:04,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:47:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:47:04,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:47:04,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:47:04,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950451017] [2022-12-05 18:47:04,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950451017] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:04,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:47:04,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:47:04,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946530686] [2022-12-05 18:47:04,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:04,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:47:04,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:04,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:47:04,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:47:04,454 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2022-12-05 18:47:04,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 102 transitions, 294 flow. Second operand has 8 states, 8 states have (on average 96.5) internal successors, (772), 8 states have internal predecessors, (772), 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) [2022-12-05 18:47:04,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:04,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2022-12-05 18:47:04,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:04,564 INFO L130 PetriNetUnfolder]: 4/170 cut-off events. [2022-12-05 18:47:04,564 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-12-05 18:47:04,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 170 events. 4/170 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 283 event pairs, 1 based on Foata normal form. 2/172 useless extension candidates. Maximal degree in co-relation 258. Up to 19 conditions per place. [2022-12-05 18:47:04,565 INFO L137 encePairwiseOnDemand]: 117/131 looper letters, 0 selfloop transitions, 0 changer transitions 109/109 dead transitions. [2022-12-05 18:47:04,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 109 transitions, 372 flow [2022-12-05 18:47:04,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-05 18:47:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-05 18:47:04,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1534 transitions. [2022-12-05 18:47:04,568 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7318702290076335 [2022-12-05 18:47:04,568 INFO L175 Difference]: Start difference. First operand has 116 places, 102 transitions, 294 flow. Second operand 16 states and 1534 transitions. [2022-12-05 18:47:04,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 109 transitions, 372 flow [2022-12-05 18:47:04,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 109 transitions, 358 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-12-05 18:47:04,569 INFO L231 Difference]: Finished difference. Result has 124 places, 0 transitions, 0 flow [2022-12-05 18:47:04,569 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=124, PETRI_TRANSITIONS=0} [2022-12-05 18:47:04,570 INFO L294 CegarLoopForPetriNet]: 118 programPoint places, 6 predicate places. [2022-12-05 18:47:04,570 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 0 transitions, 0 flow [2022-12-05 18:47:04,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 96.5) internal successors, (772), 8 states have internal predecessors, (772), 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) [2022-12-05 18:47:04,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-05 18:47:04,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-05 18:47:04,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-12-05 18:47:04,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-12-05 18:47:04,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-05 18:47:04,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 18:47:04,574 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:47:04,576 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:47:04,576 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:47:04,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:47:04 BasicIcfg [2022-12-05 18:47:04,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:47:04,580 INFO L158 Benchmark]: Toolchain (without parser) took 4210.56ms. Allocated memory was 191.9MB in the beginning and 269.5MB in the end (delta: 77.6MB). Free memory was 165.5MB in the beginning and 108.0MB in the end (delta: 57.5MB). Peak memory consumption was 135.6MB. Max. memory is 8.0GB. [2022-12-05 18:47:04,580 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 168.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:47:04,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.90ms. Allocated memory is still 191.9MB. Free memory was 165.5MB in the beginning and 145.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-05 18:47:04,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.50ms. Allocated memory is still 191.9MB. Free memory was 145.6MB in the beginning and 143.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:47:04,580 INFO L158 Benchmark]: Boogie Preprocessor took 38.75ms. Allocated memory is still 191.9MB. Free memory was 143.5MB in the beginning and 142.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 18:47:04,581 INFO L158 Benchmark]: RCFGBuilder took 421.86ms. Allocated memory is still 191.9MB. Free memory was 142.0MB in the beginning and 125.7MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-12-05 18:47:04,581 INFO L158 Benchmark]: TraceAbstraction took 3292.32ms. Allocated memory was 191.9MB in the beginning and 269.5MB in the end (delta: 77.6MB). Free memory was 125.2MB in the beginning and 108.0MB in the end (delta: 17.1MB). Peak memory consumption was 95.8MB. Max. memory is 8.0GB. [2022-12-05 18:47:04,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 168.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 384.90ms. Allocated memory is still 191.9MB. Free memory was 165.5MB in the beginning and 145.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 68.50ms. Allocated memory is still 191.9MB. Free memory was 145.6MB in the beginning and 143.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.75ms. Allocated memory is still 191.9MB. Free memory was 143.5MB in the beginning and 142.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 421.86ms. Allocated memory is still 191.9MB. Free memory was 142.0MB in the beginning and 125.7MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 3292.32ms. Allocated memory was 191.9MB in the beginning and 269.5MB in the end (delta: 77.6MB). Free memory was 125.2MB in the beginning and 108.0MB in the end (delta: 17.1MB). Peak memory consumption was 95.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 163 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 404 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 404 mSDsluCounter, 342 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 224 mSDsCounter, 143 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 554 IncrementalHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 143 mSolverCounterUnsat, 118 mSDtfsCounter, 554 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=491occurred in iteration=4, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 574 NumberOfCodeBlocks, 574 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 566 ConstructedInterpolants, 0 QuantifiedInterpolants, 2353 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 18:47:04,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...