/usr/bin/java -Xmx16000000000 -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-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 08:27:59,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 08:27:59,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 08:27:59,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 08:27:59,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 08:27:59,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 08:27:59,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 08:27:59,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 08:27:59,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 08:27:59,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 08:27:59,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 08:27:59,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 08:27:59,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 08:27:59,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 08:27:59,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 08:27:59,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 08:27:59,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 08:27:59,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 08:27:59,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 08:27:59,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 08:27:59,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 08:27:59,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 08:27:59,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 08:27:59,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 08:27:59,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 08:27:59,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 08:27:59,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 08:27:59,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 08:27:59,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 08:27:59,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 08:27:59,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 08:27:59,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 08:27:59,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 08:27:59,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 08:27:59,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 08:27:59,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 08:27:59,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 08:27:59,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 08:27:59,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 08:27:59,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 08:27:59,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 08:27:59,838 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-Before.epf [2022-01-19 08:27:59,863 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 08:27:59,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 08:27:59,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 08:27:59,864 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 08:27:59,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 08:27:59,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 08:27:59,865 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 08:27:59,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 08:27:59,865 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 08:27:59,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 08:27:59,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 08:27:59,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 08:27:59,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 08:27:59,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 08:27:59,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 08:27:59,865 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 08:27:59,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 08:27:59,866 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 08:27:59,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 08:27:59,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 08:27:59,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 08:27:59,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 08:27:59,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 08:27:59,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 08:27:59,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 08:27:59,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 08:27:59,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 08:27:59,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 08:27:59,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 08:27:59,867 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 08:27:59,868 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 08:27:59,868 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 08:27:59,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 08:28:00,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 08:28:00,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 08:28:00,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 08:28:00,039 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 08:28:00,042 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 08:28:00,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c [2022-01-19 08:28:00,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df09d0a92/ddb423428f1b4f0a8bc41ddb5a39bcfd/FLAGac185228a [2022-01-19 08:28:00,440 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 08:28:00,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c [2022-01-19 08:28:00,444 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df09d0a92/ddb423428f1b4f0a8bc41ddb5a39bcfd/FLAGac185228a [2022-01-19 08:28:00,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df09d0a92/ddb423428f1b4f0a8bc41ddb5a39bcfd [2022-01-19 08:28:00,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 08:28:00,456 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 08:28:00,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 08:28:00,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 08:28:00,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 08:28:00,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 08:28:00" (1/1) ... [2022-01-19 08:28:00,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e0d145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:28:00, skipping insertion in model container [2022-01-19 08:28:00,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 08:28:00" (1/1) ... [2022-01-19 08:28:00,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 08:28:00,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 08:28:00,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c[2586,2599] [2022-01-19 08:28:00,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 08:28:00,672 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 08:28:00,684 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c[2586,2599] [2022-01-19 08:28:00,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 08:28:00,696 INFO L208 MainTranslator]: Completed translation [2022-01-19 08:28:00,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:28:00 WrapperNode [2022-01-19 08:28:00,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 08:28:00,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 08:28:00,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 08:28:00,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 08:28:00,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:28:00" (1/1) ... [2022-01-19 08:28:00,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:28:00" (1/1) ... [2022-01-19 08:28:00,722 INFO L137 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 106 [2022-01-19 08:28:00,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 08:28:00,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 08:28:00,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 08:28:00,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 08:28:00,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:28:00" (1/1) ... [2022-01-19 08:28:00,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:28:00" (1/1) ... [2022-01-19 08:28:00,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:28:00" (1/1) ... [2022-01-19 08:28:00,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:28:00" (1/1) ... [2022-01-19 08:28:00,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:28:00" (1/1) ... [2022-01-19 08:28:00,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:28:00" (1/1) ... [2022-01-19 08:28:00,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:28:00" (1/1) ... [2022-01-19 08:28:00,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 08:28:00,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 08:28:00,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 08:28:00,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 08:28:00,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:28:00" (1/1) ... [2022-01-19 08:28:00,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 08:28:00,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:28:00,776 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) [2022-01-19 08:28:00,780 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 [2022-01-19 08:28:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 08:28:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 08:28:00,802 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 08:28:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 08:28:00,802 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 08:28:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 08:28:00,802 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 08:28:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 08:28:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 08:28:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 08:28:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 08:28:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 08:28:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 08:28:00,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 08:28:00,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 08:28:00,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 08:28:00,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 08:28:00,804 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 08:28:00,869 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 08:28:00,870 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 08:28:01,094 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 08:28:01,133 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 08:28:01,133 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-19 08:28:01,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 08:28:01 BoogieIcfgContainer [2022-01-19 08:28:01,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 08:28:01,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 08:28:01,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 08:28:01,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 08:28:01,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 08:28:00" (1/3) ... [2022-01-19 08:28:01,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@389a90d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 08:28:01, skipping insertion in model container [2022-01-19 08:28:01,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:28:00" (2/3) ... [2022-01-19 08:28:01,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@389a90d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 08:28:01, skipping insertion in model container [2022-01-19 08:28:01,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 08:28:01" (3/3) ... [2022-01-19 08:28:01,140 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-min-array-hom.wvr.c [2022-01-19 08:28:01,143 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 08:28:01,143 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 08:28:01,143 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 08:28:01,168 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,169 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,169 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,169 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,169 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,169 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,170 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,170 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,170 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,170 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,170 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,170 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,170 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,170 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,171 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,171 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,171 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,171 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,171 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,171 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,172 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,172 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,172 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,172 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,172 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,172 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,172 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,172 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,173 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,173 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,173 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,173 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,173 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,173 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,174 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,174 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,174 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,174 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,174 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,174 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,174 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,174 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,175 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,175 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,175 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,175 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,175 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,175 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,176 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,176 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,176 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,176 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,176 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,176 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,176 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,176 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,177 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,177 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,177 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,177 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,177 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,177 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,178 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,179 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,179 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,179 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,179 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,179 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,179 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,180 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,180 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,180 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,180 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,180 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,180 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,180 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,180 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,182 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,182 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,182 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,183 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,183 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,183 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,188 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,189 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:28:01,192 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-19 08:28:01,225 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 08:28:01,230 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 08:28:01,230 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 08:28:01,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 156 places, 159 transitions, 342 flow [2022-01-19 08:28:01,284 INFO L129 PetriNetUnfolder]: 13/156 cut-off events. [2022-01-19 08:28:01,285 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 08:28:01,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 156 events. 13/156 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 96 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2022-01-19 08:28:01,288 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 159 transitions, 342 flow [2022-01-19 08:28:01,296 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 145 transitions, 308 flow [2022-01-19 08:28:01,344 INFO L129 PetriNetUnfolder]: 13/144 cut-off events. [2022-01-19 08:28:01,344 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 08:28:01,345 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:28:01,345 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:28:01,346 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:28:01,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:28:01,351 INFO L85 PathProgramCache]: Analyzing trace with hash -363023648, now seen corresponding path program 1 times [2022-01-19 08:28:01,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:28:01,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130985012] [2022-01-19 08:28:01,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:28:01,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:28:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:28:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:28:01,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:28:01,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130985012] [2022-01-19 08:28:01,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130985012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:28:01,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:28:01,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 08:28:01,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115347915] [2022-01-19 08:28:01,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:28:01,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 08:28:01,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:28:01,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 08:28:01,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 08:28:01,602 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 159 [2022-01-19 08:28:01,607 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 145 transitions, 308 flow. Second operand has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 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) [2022-01-19 08:28:01,607 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:28:01,607 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 159 [2022-01-19 08:28:01,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:28:01,688 INFO L129 PetriNetUnfolder]: 42/270 cut-off events. [2022-01-19 08:28:01,688 INFO L130 PetriNetUnfolder]: For 50/51 co-relation queries the response was YES. [2022-01-19 08:28:01,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 270 events. 42/270 cut-off events. For 50/51 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 719 event pairs, 15 based on Foata normal form. 42/281 useless extension candidates. Maximal degree in co-relation 216. Up to 59 conditions per place. [2022-01-19 08:28:01,694 INFO L132 encePairwiseOnDemand]: 151/159 looper letters, 9 selfloop transitions, 0 changer transitions 4/137 dead transitions. [2022-01-19 08:28:01,694 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 137 transitions, 310 flow [2022-01-19 08:28:01,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 08:28:01,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 08:28:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 299 transitions. [2022-01-19 08:28:01,707 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.940251572327044 [2022-01-19 08:28:01,708 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 299 transitions. [2022-01-19 08:28:01,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 299 transitions. [2022-01-19 08:28:01,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:28:01,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 299 transitions. [2022-01-19 08:28:01,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 149.5) internal successors, (299), 2 states have internal predecessors, (299), 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) [2022-01-19 08:28:01,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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) [2022-01-19 08:28:01,721 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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) [2022-01-19 08:28:01,723 INFO L186 Difference]: Start difference. First operand has 142 places, 145 transitions, 308 flow. Second operand 2 states and 299 transitions. [2022-01-19 08:28:01,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 137 transitions, 310 flow [2022-01-19 08:28:01,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 137 transitions, 298 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 08:28:01,729 INFO L242 Difference]: Finished difference. Result has 137 places, 133 transitions, 272 flow [2022-01-19 08:28:01,730 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=272, PETRI_PLACES=137, PETRI_TRANSITIONS=133} [2022-01-19 08:28:01,736 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, -5 predicate places. [2022-01-19 08:28:01,736 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 133 transitions, 272 flow [2022-01-19 08:28:01,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 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) [2022-01-19 08:28:01,737 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:28:01,737 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:28:01,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 08:28:01,737 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:28:01,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:28:01,738 INFO L85 PathProgramCache]: Analyzing trace with hash 811959335, now seen corresponding path program 1 times [2022-01-19 08:28:01,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:28:01,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993415497] [2022-01-19 08:28:01,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:28:01,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:28:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:28:01,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:28:01,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:28:01,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993415497] [2022-01-19 08:28:01,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993415497] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:28:01,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:28:01,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 08:28:01,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897387026] [2022-01-19 08:28:01,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:28:01,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 08:28:01,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:28:01,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 08:28:01,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 08:28:01,994 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 159 [2022-01-19 08:28:01,995 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 133 transitions, 272 flow. Second operand has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 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) [2022-01-19 08:28:01,995 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:28:01,995 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 159 [2022-01-19 08:28:01,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:28:02,170 INFO L129 PetriNetUnfolder]: 396/824 cut-off events. [2022-01-19 08:28:02,171 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-01-19 08:28:02,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1429 conditions, 824 events. 396/824 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3520 event pairs, 109 based on Foata normal form. 0/634 useless extension candidates. Maximal degree in co-relation 1426. Up to 305 conditions per place. [2022-01-19 08:28:02,177 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 42 selfloop transitions, 6 changer transitions 0/142 dead transitions. [2022-01-19 08:28:02,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 142 transitions, 388 flow [2022-01-19 08:28:02,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 08:28:02,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 08:28:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 691 transitions. [2022-01-19 08:28:02,180 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7243186582809225 [2022-01-19 08:28:02,180 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 691 transitions. [2022-01-19 08:28:02,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 691 transitions. [2022-01-19 08:28:02,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:28:02,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 691 transitions. [2022-01-19 08:28:02,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 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) [2022-01-19 08:28:02,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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) [2022-01-19 08:28:02,185 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 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) [2022-01-19 08:28:02,185 INFO L186 Difference]: Start difference. First operand has 137 places, 133 transitions, 272 flow. Second operand 6 states and 691 transitions. [2022-01-19 08:28:02,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 142 transitions, 388 flow [2022-01-19 08:28:02,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 142 transitions, 388 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 08:28:02,190 INFO L242 Difference]: Finished difference. Result has 140 places, 134 transitions, 297 flow [2022-01-19 08:28:02,190 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=297, PETRI_PLACES=140, PETRI_TRANSITIONS=134} [2022-01-19 08:28:02,191 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, -2 predicate places. [2022-01-19 08:28:02,192 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 134 transitions, 297 flow [2022-01-19 08:28:02,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 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) [2022-01-19 08:28:02,195 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:28:02,198 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:28:02,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 08:28:02,199 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:28:02,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:28:02,199 INFO L85 PathProgramCache]: Analyzing trace with hash -533935902, now seen corresponding path program 1 times [2022-01-19 08:28:02,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:28:02,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786591166] [2022-01-19 08:28:02,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:28:02,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:28:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:28:02,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:28:02,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:28:02,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786591166] [2022-01-19 08:28:02,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786591166] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:28:02,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:28:02,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 08:28:02,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136519568] [2022-01-19 08:28:02,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:28:02,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 08:28:02,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:28:02,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 08:28:02,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-19 08:28:02,467 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 159 [2022-01-19 08:28:02,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 134 transitions, 297 flow. Second operand has 9 states, 9 states have (on average 102.44444444444444) internal successors, (922), 9 states have internal predecessors, (922), 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) [2022-01-19 08:28:02,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:28:02,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 159 [2022-01-19 08:28:02,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:28:02,705 INFO L129 PetriNetUnfolder]: 396/805 cut-off events. [2022-01-19 08:28:02,705 INFO L130 PetriNetUnfolder]: For 204/204 co-relation queries the response was YES. [2022-01-19 08:28:02,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1603 conditions, 805 events. 396/805 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3353 event pairs, 199 based on Foata normal form. 1/627 useless extension candidates. Maximal degree in co-relation 1597. Up to 508 conditions per place. [2022-01-19 08:28:02,711 INFO L132 encePairwiseOnDemand]: 148/159 looper letters, 54 selfloop transitions, 7 changer transitions 4/150 dead transitions. [2022-01-19 08:28:02,712 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 150 transitions, 465 flow [2022-01-19 08:28:02,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 08:28:02,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 08:28:02,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 947 transitions. [2022-01-19 08:28:02,714 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6617749825296995 [2022-01-19 08:28:02,714 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 947 transitions. [2022-01-19 08:28:02,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 947 transitions. [2022-01-19 08:28:02,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:28:02,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 947 transitions. [2022-01-19 08:28:02,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 105.22222222222223) internal successors, (947), 9 states have internal predecessors, (947), 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) [2022-01-19 08:28:02,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 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) [2022-01-19 08:28:02,718 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 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) [2022-01-19 08:28:02,718 INFO L186 Difference]: Start difference. First operand has 140 places, 134 transitions, 297 flow. Second operand 9 states and 947 transitions. [2022-01-19 08:28:02,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 150 transitions, 465 flow [2022-01-19 08:28:02,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 150 transitions, 453 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 08:28:02,724 INFO L242 Difference]: Finished difference. Result has 148 places, 135 transitions, 319 flow [2022-01-19 08:28:02,724 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=319, PETRI_PLACES=148, PETRI_TRANSITIONS=135} [2022-01-19 08:28:02,725 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 6 predicate places. [2022-01-19 08:28:02,725 INFO L470 AbstractCegarLoop]: Abstraction has has 148 places, 135 transitions, 319 flow [2022-01-19 08:28:02,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 102.44444444444444) internal successors, (922), 9 states have internal predecessors, (922), 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) [2022-01-19 08:28:02,726 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:28:02,727 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:28:02,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 08:28:02,727 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:28:02,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:28:02,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1305271965, now seen corresponding path program 1 times [2022-01-19 08:28:02,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:28:02,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746880435] [2022-01-19 08:28:02,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:28:02,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:28:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:28:02,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 08:28:02,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:28:02,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746880435] [2022-01-19 08:28:02,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746880435] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:28:02,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111637249] [2022-01-19 08:28:02,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:28:02,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:28:02,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:28:02,816 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:28:02,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 08:28:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:28:02,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 08:28:02,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:28:03,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 08:28:03,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:28:03,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 08:28:03,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111637249] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 08:28:03,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 08:28:03,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-19 08:28:03,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123563329] [2022-01-19 08:28:03,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:28:03,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 08:28:03,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:28:03,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 08:28:03,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-19 08:28:03,396 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 159 [2022-01-19 08:28:03,397 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 135 transitions, 319 flow. Second operand has 7 states, 7 states have (on average 122.71428571428571) internal successors, (859), 7 states have internal predecessors, (859), 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) [2022-01-19 08:28:03,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:28:03,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 159 [2022-01-19 08:28:03,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:28:03,536 INFO L129 PetriNetUnfolder]: 171/592 cut-off events. [2022-01-19 08:28:03,536 INFO L130 PetriNetUnfolder]: For 145/167 co-relation queries the response was YES. [2022-01-19 08:28:03,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 592 events. 171/592 cut-off events. For 145/167 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2821 event pairs, 80 based on Foata normal form. 22/563 useless extension candidates. Maximal degree in co-relation 1011. Up to 135 conditions per place. [2022-01-19 08:28:03,539 INFO L132 encePairwiseOnDemand]: 151/159 looper letters, 35 selfloop transitions, 7 changer transitions 0/144 dead transitions. [2022-01-19 08:28:03,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 144 transitions, 432 flow [2022-01-19 08:28:03,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 08:28:03,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 08:28:03,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 873 transitions. [2022-01-19 08:28:03,541 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.784366576819407 [2022-01-19 08:28:03,541 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 873 transitions. [2022-01-19 08:28:03,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 873 transitions. [2022-01-19 08:28:03,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:28:03,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 873 transitions. [2022-01-19 08:28:03,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 124.71428571428571) internal successors, (873), 7 states have internal predecessors, (873), 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) [2022-01-19 08:28:03,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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) [2022-01-19 08:28:03,545 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 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) [2022-01-19 08:28:03,545 INFO L186 Difference]: Start difference. First operand has 148 places, 135 transitions, 319 flow. Second operand 7 states and 873 transitions. [2022-01-19 08:28:03,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 144 transitions, 432 flow [2022-01-19 08:28:03,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 144 transitions, 412 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-01-19 08:28:03,548 INFO L242 Difference]: Finished difference. Result has 148 places, 137 transitions, 333 flow [2022-01-19 08:28:03,548 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=333, PETRI_PLACES=148, PETRI_TRANSITIONS=137} [2022-01-19 08:28:03,549 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 6 predicate places. [2022-01-19 08:28:03,549 INFO L470 AbstractCegarLoop]: Abstraction has has 148 places, 137 transitions, 333 flow [2022-01-19 08:28:03,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.71428571428571) internal successors, (859), 7 states have internal predecessors, (859), 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) [2022-01-19 08:28:03,549 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:28:03,549 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:28:03,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-19 08:28:03,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:28:03,763 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:28:03,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:28:03,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1256240202, now seen corresponding path program 1 times [2022-01-19 08:28:03,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:28:03,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152281914] [2022-01-19 08:28:03,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:28:03,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:28:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:28:04,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:28:04,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:28:04,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152281914] [2022-01-19 08:28:04,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152281914] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:28:04,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693835368] [2022-01-19 08:28:04,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:28:04,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:28:04,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:28:04,516 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:28:04,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 08:28:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:28:04,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 56 conjunts are in the unsatisfiable core [2022-01-19 08:28:04,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:28:04,671 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 08:28:04,900 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-19 08:28:04,900 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-19 08:28:06,134 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-01-19 08:28:06,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-19 08:28:06,538 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 08:28:06,538 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 36 [2022-01-19 08:28:06,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:28:06,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:28:07,295 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 08:28:07,295 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 111 [2022-01-19 08:28:07,301 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 60 [2022-01-19 08:28:07,304 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2022-01-19 08:28:09,097 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-19 08:28:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:28:09,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693835368] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 08:28:09,158 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 08:28:09,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 28, 28] total 72 [2022-01-19 08:28:09,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866109880] [2022-01-19 08:28:09,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 08:28:09,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-01-19 08:28:09,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:28:09,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-01-19 08:28:09,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=651, Invalid=4456, Unknown=5, NotChecked=0, Total=5112 [2022-01-19 08:28:09,165 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 159 [2022-01-19 08:28:09,168 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 137 transitions, 333 flow. Second operand has 72 states, 72 states have (on average 57.90277777777778) internal successors, (4169), 72 states have internal predecessors, (4169), 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) [2022-01-19 08:28:09,168 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:28:09,168 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 159 [2022-01-19 08:28:09,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:28:18,563 INFO L129 PetriNetUnfolder]: 9336/15267 cut-off events. [2022-01-19 08:28:18,563 INFO L130 PetriNetUnfolder]: For 6485/6485 co-relation queries the response was YES. [2022-01-19 08:28:18,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35490 conditions, 15267 events. 9336/15267 cut-off events. For 6485/6485 co-relation queries the response was YES. Maximal size of possible extension queue 858. Compared 113075 event pairs, 1258 based on Foata normal form. 4/14440 useless extension candidates. Maximal degree in co-relation 35480. Up to 3519 conditions per place. [2022-01-19 08:28:18,637 INFO L132 encePairwiseOnDemand]: 113/159 looper letters, 651 selfloop transitions, 248 changer transitions 21/966 dead transitions. [2022-01-19 08:28:18,638 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 966 transitions, 4614 flow [2022-01-19 08:28:18,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-01-19 08:28:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2022-01-19 08:28:18,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 7645 transitions. [2022-01-19 08:28:18,651 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.39411279513351893 [2022-01-19 08:28:18,651 INFO L72 ComplementDD]: Start complementDD. Operand 122 states and 7645 transitions. [2022-01-19 08:28:18,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 122 states and 7645 transitions. [2022-01-19 08:28:18,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:28:18,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 122 states and 7645 transitions. [2022-01-19 08:28:18,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 123 states, 122 states have (on average 62.66393442622951) internal successors, (7645), 122 states have internal predecessors, (7645), 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) [2022-01-19 08:28:18,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 123 states, 123 states have (on average 159.0) internal successors, (19557), 123 states have internal predecessors, (19557), 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) [2022-01-19 08:28:18,685 INFO L81 ComplementDD]: Finished complementDD. Result has 123 states, 123 states have (on average 159.0) internal successors, (19557), 123 states have internal predecessors, (19557), 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) [2022-01-19 08:28:18,685 INFO L186 Difference]: Start difference. First operand has 148 places, 137 transitions, 333 flow. Second operand 122 states and 7645 transitions. [2022-01-19 08:28:18,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 966 transitions, 4614 flow [2022-01-19 08:28:18,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 966 transitions, 4535 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 08:28:18,725 INFO L242 Difference]: Finished difference. Result has 337 places, 417 transitions, 2272 flow [2022-01-19 08:28:18,726 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=122, PETRI_FLOW=2272, PETRI_PLACES=337, PETRI_TRANSITIONS=417} [2022-01-19 08:28:18,727 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 195 predicate places. [2022-01-19 08:28:18,727 INFO L470 AbstractCegarLoop]: Abstraction has has 337 places, 417 transitions, 2272 flow [2022-01-19 08:28:18,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 57.90277777777778) internal successors, (4169), 72 states have internal predecessors, (4169), 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) [2022-01-19 08:28:18,729 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:28:18,729 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:28:18,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-19 08:28:18,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:28:18,939 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:28:18,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:28:18,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1497923746, now seen corresponding path program 2 times [2022-01-19 08:28:18,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:28:18,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477291008] [2022-01-19 08:28:18,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:28:18,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:28:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:28:19,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:28:19,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:28:19,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477291008] [2022-01-19 08:28:19,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477291008] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:28:19,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960949563] [2022-01-19 08:28:19,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 08:28:19,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:28:19,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:28:19,771 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:28:19,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-19 08:28:19,849 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 08:28:19,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 08:28:19,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 47 conjunts are in the unsatisfiable core [2022-01-19 08:28:19,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:28:20,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 08:28:20,933 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-01-19 08:28:21,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 08:28:21,091 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-01-19 08:28:21,491 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 08:28:21,491 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 43 [2022-01-19 08:28:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 08:28:22,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:28:23,260 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 08:28:23,260 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 337 treesize of output 297 [2022-01-19 08:28:23,268 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 258 treesize of output 234 [2022-01-19 08:28:23,279 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 222 [2022-01-19 08:28:23,285 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 210 [2022-01-19 08:28:23,293 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 210 treesize of output 186 [2022-01-19 08:28:24,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 08:28:24,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960949563] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 08:28:24,773 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 08:28:24,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 27, 27] total 72 [2022-01-19 08:28:24,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265723883] [2022-01-19 08:28:24,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 08:28:24,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-01-19 08:28:24,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:28:24,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-01-19 08:28:24,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=873, Invalid=4229, Unknown=10, NotChecked=0, Total=5112 [2022-01-19 08:28:24,780 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 159 [2022-01-19 08:28:24,782 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 417 transitions, 2272 flow. Second operand has 72 states, 72 states have (on average 55.958333333333336) internal successors, (4029), 72 states have internal predecessors, (4029), 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) [2022-01-19 08:28:24,782 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:28:24,782 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 159 [2022-01-19 08:28:24,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:28:44,275 INFO L129 PetriNetUnfolder]: 19082/32509 cut-off events. [2022-01-19 08:28:44,275 INFO L130 PetriNetUnfolder]: For 317879/317887 co-relation queries the response was YES. [2022-01-19 08:28:44,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141547 conditions, 32509 events. 19082/32509 cut-off events. For 317879/317887 co-relation queries the response was YES. Maximal size of possible extension queue 1769. Compared 285122 event pairs, 1897 based on Foata normal form. 11/32320 useless extension candidates. Maximal degree in co-relation 141466. Up to 6643 conditions per place. [2022-01-19 08:28:44,744 INFO L132 encePairwiseOnDemand]: 114/159 looper letters, 1246 selfloop transitions, 995 changer transitions 23/2309 dead transitions. [2022-01-19 08:28:44,744 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 2309 transitions, 19881 flow [2022-01-19 08:28:44,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-01-19 08:28:44,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2022-01-19 08:28:44,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 11104 transitions. [2022-01-19 08:28:44,767 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.3837169120187988 [2022-01-19 08:28:44,767 INFO L72 ComplementDD]: Start complementDD. Operand 182 states and 11104 transitions. [2022-01-19 08:28:44,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 11104 transitions. [2022-01-19 08:28:44,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:28:44,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 182 states and 11104 transitions. [2022-01-19 08:28:44,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 183 states, 182 states have (on average 61.010989010989015) internal successors, (11104), 182 states have internal predecessors, (11104), 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) [2022-01-19 08:28:44,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 183 states, 183 states have (on average 159.0) internal successors, (29097), 183 states have internal predecessors, (29097), 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) [2022-01-19 08:28:44,834 INFO L81 ComplementDD]: Finished complementDD. Result has 183 states, 183 states have (on average 159.0) internal successors, (29097), 183 states have internal predecessors, (29097), 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) [2022-01-19 08:28:44,834 INFO L186 Difference]: Start difference. First operand has 337 places, 417 transitions, 2272 flow. Second operand 182 states and 11104 transitions. [2022-01-19 08:28:44,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 2309 transitions, 19881 flow [2022-01-19 08:28:46,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 2309 transitions, 19697 flow, removed 76 selfloop flow, removed 29 redundant places. [2022-01-19 08:28:46,404 INFO L242 Difference]: Finished difference. Result has 575 places, 1293 transitions, 12643 flow [2022-01-19 08:28:46,404 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=2200, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=192, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=182, PETRI_FLOW=12643, PETRI_PLACES=575, PETRI_TRANSITIONS=1293} [2022-01-19 08:28:46,405 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 433 predicate places. [2022-01-19 08:28:46,405 INFO L470 AbstractCegarLoop]: Abstraction has has 575 places, 1293 transitions, 12643 flow [2022-01-19 08:28:46,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 55.958333333333336) internal successors, (4029), 72 states have internal predecessors, (4029), 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) [2022-01-19 08:28:46,406 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:28:46,406 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:28:46,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-19 08:28:46,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:28:46,622 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:28:46,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:28:46,623 INFO L85 PathProgramCache]: Analyzing trace with hash -82461842, now seen corresponding path program 1 times [2022-01-19 08:28:46,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:28:46,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992317246] [2022-01-19 08:28:46,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:28:46,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:28:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:28:47,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:28:47,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:28:47,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992317246] [2022-01-19 08:28:47,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992317246] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:28:47,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674756600] [2022-01-19 08:28:47,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:28:47,411 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:28:47,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:28:47,412 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:28:47,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-19 08:28:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:28:47,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 55 conjunts are in the unsatisfiable core [2022-01-19 08:28:47,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:28:47,625 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 08:28:47,664 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-19 08:28:47,665 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-01-19 08:28:48,064 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-19 08:28:48,064 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-01-19 08:28:48,943 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-01-19 08:28:49,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 08:28:49,116 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-01-19 08:28:49,501 INFO L353 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-01-19 08:28:49,501 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 32 [2022-01-19 08:28:49,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:28:49,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:28:50,064 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_178 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_178) c_~A~0.base) (+ c_~A~0.offset (* 4 c_~M~0))))) (or (not (< .cse0 c_~min3~0)) (not (< .cse0 c_~min2~0)) (= c_~min1~0 .cse0)))) (or (forall ((v_ArrVal_178 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_178) c_~A~0.base) (+ c_~A~0.offset (* 4 c_~M~0))) c_~min3~0)) (= c_~min1~0 c_~min3~0) (not (< c_~min3~0 c_~min2~0)))) is different from false [2022-01-19 08:28:50,178 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_177 (Array Int Int)) (v_ArrVal_178 (Array Int Int))) (let ((.cse0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_177) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_178) c_~A~0.base) (+ c_~A~0.offset (* 4 c_~M~0))))) (or (not (< .cse0 c_~min2~0)) (= .cse0 c_~min1~0) (not (< .cse0 c_~min3~0))))) (or (forall ((v_ArrVal_177 (Array Int Int)) (v_ArrVal_178 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_177) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_178) c_~A~0.base) (+ c_~A~0.offset (* 4 c_~M~0))) c_~min3~0)) (= c_~min1~0 c_~min3~0) (not (< c_~min3~0 c_~min2~0)))) is different from false [2022-01-19 08:28:50,258 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 08:28:50,259 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 655 treesize of output 583 [2022-01-19 08:28:50,265 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 544 treesize of output 532 [2022-01-19 08:28:50,272 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 532 treesize of output 508 [2022-01-19 08:28:50,277 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 508 treesize of output 472 [2022-01-19 08:28:50,282 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 472 treesize of output 400 [2022-01-19 08:28:55,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-19 08:28:55,449 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-19 08:28:55,603 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:28:55,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674756600] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 08:28:55,603 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 08:28:55,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 31] total 84 [2022-01-19 08:28:55,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571036946] [2022-01-19 08:28:55,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 08:28:55,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-01-19 08:28:55,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:28:55,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-01-19 08:28:55,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=746, Invalid=5901, Unknown=3, NotChecked=322, Total=6972 [2022-01-19 08:28:55,608 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 159 [2022-01-19 08:28:55,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 1293 transitions, 12643 flow. Second operand has 84 states, 84 states have (on average 55.642857142857146) internal successors, (4674), 84 states have internal predecessors, (4674), 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) [2022-01-19 08:28:55,610 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:28:55,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 159 [2022-01-19 08:28:55,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:29:14,888 INFO L129 PetriNetUnfolder]: 25156/42405 cut-off events. [2022-01-19 08:29:14,888 INFO L130 PetriNetUnfolder]: For 1648098/1648558 co-relation queries the response was YES. [2022-01-19 08:29:16,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287430 conditions, 42405 events. 25156/42405 cut-off events. For 1648098/1648558 co-relation queries the response was YES. Maximal size of possible extension queue 2372. Compared 381282 event pairs, 3259 based on Foata normal form. 36/42135 useless extension candidates. Maximal degree in co-relation 287263. Up to 16542 conditions per place. [2022-01-19 08:29:16,405 INFO L132 encePairwiseOnDemand]: 114/159 looper letters, 1226 selfloop transitions, 902 changer transitions 24/2197 dead transitions. [2022-01-19 08:29:16,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 642 places, 2197 transitions, 27222 flow [2022-01-19 08:29:16,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-19 08:29:16,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2022-01-19 08:29:16,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 4884 transitions. [2022-01-19 08:29:16,410 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.3839622641509434 [2022-01-19 08:29:16,410 INFO L72 ComplementDD]: Start complementDD. Operand 80 states and 4884 transitions. [2022-01-19 08:29:16,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 4884 transitions. [2022-01-19 08:29:16,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:29:16,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 80 states and 4884 transitions. [2022-01-19 08:29:16,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 81 states, 80 states have (on average 61.05) internal successors, (4884), 80 states have internal predecessors, (4884), 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) [2022-01-19 08:29:16,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 81 states, 81 states have (on average 159.0) internal successors, (12879), 81 states have internal predecessors, (12879), 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) [2022-01-19 08:29:16,424 INFO L81 ComplementDD]: Finished complementDD. Result has 81 states, 81 states have (on average 159.0) internal successors, (12879), 81 states have internal predecessors, (12879), 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) [2022-01-19 08:29:16,424 INFO L186 Difference]: Start difference. First operand has 575 places, 1293 transitions, 12643 flow. Second operand 80 states and 4884 transitions. [2022-01-19 08:29:16,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 642 places, 2197 transitions, 27222 flow [2022-01-19 08:29:29,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 602 places, 2197 transitions, 24920 flow, removed 1109 selfloop flow, removed 40 redundant places. [2022-01-19 08:29:29,280 INFO L242 Difference]: Finished difference. Result has 641 places, 1614 transitions, 17440 flow [2022-01-19 08:29:29,281 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=11187, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=596, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=80, PETRI_FLOW=17440, PETRI_PLACES=641, PETRI_TRANSITIONS=1614} [2022-01-19 08:29:29,282 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 499 predicate places. [2022-01-19 08:29:29,282 INFO L470 AbstractCegarLoop]: Abstraction has has 641 places, 1614 transitions, 17440 flow [2022-01-19 08:29:29,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 55.642857142857146) internal successors, (4674), 84 states have internal predecessors, (4674), 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) [2022-01-19 08:29:29,283 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:29:29,283 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:29:29,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-19 08:29:29,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:29:29,500 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:29:29,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:29:29,500 INFO L85 PathProgramCache]: Analyzing trace with hash -485115376, now seen corresponding path program 2 times [2022-01-19 08:29:29,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:29:29,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62708044] [2022-01-19 08:29:29,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:29:29,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:29:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:29:30,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:29:30,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:29:30,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62708044] [2022-01-19 08:29:30,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62708044] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:29:30,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4564582] [2022-01-19 08:29:30,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 08:29:30,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:29:30,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:29:30,139 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:29:30,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-19 08:29:30,211 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 08:29:30,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 08:29:30,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-19 08:29:30,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:29:30,966 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 08:29:30,966 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 44 [2022-01-19 08:29:31,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 08:29:31,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:29:31,738 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 08:29:31,738 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 63 [2022-01-19 08:29:32,827 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 08:29:32,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4564582] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 08:29:32,827 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 08:29:32,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 19, 19] total 57 [2022-01-19 08:29:32,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639155268] [2022-01-19 08:29:32,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 08:29:32,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-01-19 08:29:32,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:29:32,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-01-19 08:29:32,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=601, Invalid=2591, Unknown=0, NotChecked=0, Total=3192 [2022-01-19 08:29:32,831 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 159 [2022-01-19 08:29:32,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 641 places, 1614 transitions, 17440 flow. Second operand has 57 states, 57 states have (on average 69.6140350877193) internal successors, (3968), 57 states have internal predecessors, (3968), 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) [2022-01-19 08:29:32,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:29:32,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 159 [2022-01-19 08:29:32,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:29:52,405 INFO L129 PetriNetUnfolder]: 27468/46633 cut-off events. [2022-01-19 08:29:52,405 INFO L130 PetriNetUnfolder]: For 1783096/1783651 co-relation queries the response was YES. [2022-01-19 08:29:53,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 319565 conditions, 46633 events. 27468/46633 cut-off events. For 1783096/1783651 co-relation queries the response was YES. Maximal size of possible extension queue 2615. Compared 430331 event pairs, 4990 based on Foata normal form. 44/46250 useless extension candidates. Maximal degree in co-relation 319375. Up to 22923 conditions per place. [2022-01-19 08:29:54,111 INFO L132 encePairwiseOnDemand]: 122/159 looper letters, 1238 selfloop transitions, 881 changer transitions 34/2207 dead transitions. [2022-01-19 08:29:54,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 685 places, 2207 transitions, 27953 flow [2022-01-19 08:29:54,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-01-19 08:29:54,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2022-01-19 08:29:54,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 4509 transitions. [2022-01-19 08:29:54,115 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.46489328796783175 [2022-01-19 08:29:54,115 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 4509 transitions. [2022-01-19 08:29:54,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 4509 transitions. [2022-01-19 08:29:54,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:29:54,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 4509 transitions. [2022-01-19 08:29:54,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 73.91803278688525) internal successors, (4509), 61 states have internal predecessors, (4509), 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) [2022-01-19 08:29:54,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 159.0) internal successors, (9858), 62 states have internal predecessors, (9858), 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) [2022-01-19 08:29:54,129 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 159.0) internal successors, (9858), 62 states have internal predecessors, (9858), 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) [2022-01-19 08:29:54,130 INFO L186 Difference]: Start difference. First operand has 641 places, 1614 transitions, 17440 flow. Second operand 61 states and 4509 transitions. [2022-01-19 08:29:54,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 685 places, 2207 transitions, 27953 flow [2022-01-19 08:30:10,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 638 places, 2207 transitions, 27249 flow, removed 266 selfloop flow, removed 47 redundant places. [2022-01-19 08:30:10,106 INFO L242 Difference]: Finished difference. Result has 668 places, 1834 transitions, 22214 flow [2022-01-19 08:30:10,108 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=16932, PETRI_DIFFERENCE_MINUEND_PLACES=578, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=691, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=843, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=22214, PETRI_PLACES=668, PETRI_TRANSITIONS=1834} [2022-01-19 08:30:10,108 INFO L334 CegarLoopForPetriNet]: 142 programPoint places, 526 predicate places. [2022-01-19 08:30:10,108 INFO L470 AbstractCegarLoop]: Abstraction has has 668 places, 1834 transitions, 22214 flow [2022-01-19 08:30:10,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 69.6140350877193) internal successors, (3968), 57 states have internal predecessors, (3968), 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) [2022-01-19 08:30:10,109 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:30:10,109 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 08:30:10,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-19 08:30:10,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:30:10,324 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 08:30:10,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:30:10,325 INFO L85 PathProgramCache]: Analyzing trace with hash 419152348, now seen corresponding path program 3 times [2022-01-19 08:30:10,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:30:10,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874597581] [2022-01-19 08:30:10,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:30:10,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:30:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:30:10,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:30:10,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:30:10,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874597581] [2022-01-19 08:30:10,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874597581] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:30:10,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783712442] [2022-01-19 08:30:10,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 08:30:10,914 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:30:10,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:30:10,915 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:30:10,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-19 08:30:10,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-19 08:30:10,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 08:30:10,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 53 conjunts are in the unsatisfiable core [2022-01-19 08:30:10,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:30:11,120 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 08:30:11,395 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-19 08:30:11,395 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-19 08:30:11,537 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 08:30:11,827 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 08:30:11,962 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 08:30:12,083 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 08:30:12,413 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 08:30:12,413 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 44 [2022-01-19 08:30:13,012 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:30:13,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:30:19,256 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int)) (or (<= (+ ~M~0 1) c_thread1Thread1of1ForFork2_~i~0) (< 0 ~M~0) (and (forall ((v_ArrVal_248 (Array Int Int)) (v_ArrVal_247 (Array Int Int))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_247) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_248) c_~A~0.base))) (or (let ((.cse0 (select .cse2 (+ c_~A~0.offset (* ~M~0 4))))) (let ((.cse1 (< .cse0 c_~min3~0))) (and (or (not (< .cse0 c_~min2~0)) (= c_~min1~0 .cse0) (not .cse1)) (or (= c_~min1~0 c_~min3~0) (not (< c_~min3~0 c_~min2~0)) .cse1)))) (< (select .cse2 (+ c_~A~0.offset (* c_thread1Thread1of1ForFork2_~i~0 4))) c_~min1~0)))) (forall ((v_ArrVal_248 (Array Int Int)) (v_ArrVal_247 (Array Int Int))) (let ((.cse6 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_247) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_248) c_~A~0.base))) (let ((.cse3 (select .cse6 (+ c_~A~0.offset (* c_thread1Thread1of1ForFork2_~i~0 4))))) (or (let ((.cse5 (select .cse6 (+ c_~A~0.offset (* ~M~0 4))))) (let ((.cse4 (< .cse5 c_~min3~0))) (and (or (= .cse3 c_~min3~0) (not (< c_~min3~0 c_~min2~0)) .cse4) (or (= .cse3 .cse5) (not (< .cse5 c_~min2~0)) (not .cse4))))) (not (< .cse3 c_~min1~0))))))))) is different from false [2022-01-19 08:30:30,133 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 08:30:30,133 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 264 treesize of output 181 [2022-01-19 08:30:30,174 INFO L353 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2022-01-19 08:30:30,174 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6789 treesize of output 6477 [2022-01-19 08:30:30,244 INFO L353 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-01-19 08:30:30,244 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 6456 treesize of output 6045 [2022-01-19 08:30:30,311 INFO L353 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-01-19 08:30:30,312 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 6040 treesize of output 5213 [2022-01-19 08:30:30,380 INFO L353 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-01-19 08:30:30,381 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 5208 treesize of output 5005 [2022-01-19 08:30:30,448 INFO L353 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-01-19 08:30:30,449 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 5000 treesize of output 4925 [2022-01-19 08:30:30,513 INFO L353 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-01-19 08:30:30,514 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4920 treesize of output 4905 [2022-01-19 08:30:30,538 INFO L884 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2022-01-19 08:30:30,587 INFO L353 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-01-19 08:30:30,588 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4900 treesize of output 4865 [2022-01-19 08:30:30,641 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2022-01-19 08:30:30,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-19 08:30:30,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:30:30,842 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-01-19 08:30:30,845 INFO L158 Benchmark]: Toolchain (without parser) took 150387.46ms. Allocated memory was 417.3MB in the beginning and 10.0GB in the end (delta: 9.6GB). Free memory was 364.7MB in the beginning and 5.8GB in the end (delta: -5.4GB). Peak memory consumption was 4.2GB. Max. memory is 16.0GB. [2022-01-19 08:30:30,846 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 417.3MB. Free memory is still 381.1MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 08:30:30,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.37ms. Allocated memory was 417.3MB in the beginning and 545.3MB in the end (delta: 127.9MB). Free memory was 364.5MB in the beginning and 517.3MB in the end (delta: -152.7MB). Peak memory consumption was 10.9MB. Max. memory is 16.0GB. [2022-01-19 08:30:30,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.10ms. Allocated memory is still 545.3MB. Free memory was 517.3MB in the beginning and 515.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 08:30:30,846 INFO L158 Benchmark]: Boogie Preprocessor took 16.75ms. Allocated memory is still 545.3MB. Free memory was 515.2MB in the beginning and 514.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 08:30:30,846 INFO L158 Benchmark]: RCFGBuilder took 394.75ms. Allocated memory is still 545.3MB. Free memory was 514.1MB in the beginning and 493.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-19 08:30:30,848 INFO L158 Benchmark]: TraceAbstraction took 149707.83ms. Allocated memory was 545.3MB in the beginning and 10.0GB in the end (delta: 9.5GB). Free memory was 493.1MB in the beginning and 5.8GB in the end (delta: -5.3GB). Peak memory consumption was 4.2GB. Max. memory is 16.0GB. [2022-01-19 08:30:30,849 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 417.3MB. Free memory is still 381.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 230.37ms. Allocated memory was 417.3MB in the beginning and 545.3MB in the end (delta: 127.9MB). Free memory was 364.5MB in the beginning and 517.3MB in the end (delta: -152.7MB). Peak memory consumption was 10.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 25.10ms. Allocated memory is still 545.3MB. Free memory was 517.3MB in the beginning and 515.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 16.75ms. Allocated memory is still 545.3MB. Free memory was 515.2MB in the beginning and 514.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 394.75ms. Allocated memory is still 545.3MB. Free memory was 514.1MB in the beginning and 493.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 149707.83ms. Allocated memory was 545.3MB in the beginning and 10.0GB in the end (delta: 9.5GB). Free memory was 493.1MB in the beginning and 5.8GB in the end (delta: -5.3GB). Peak memory consumption was 4.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-19 08:30:30,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...