/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 13:23:16,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:23:16,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:23:16,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:23:16,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:23:16,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:23:16,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:23:16,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:23:16,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:23:16,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:23:16,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:23:16,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:23:16,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:23:16,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:23:16,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:23:16,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:23:16,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:23:16,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:23:16,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:23:16,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:23:16,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:23:16,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:23:16,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:23:16,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:23:16,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:23:16,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:23:16,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:23:16,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:23:16,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:23:16,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:23:16,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:23:16,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:23:16,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:23:16,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:23:16,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:23:16,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:23:16,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:23:16,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:23:16,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:23:16,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:23:16,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:23:16,769 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-13 13:23:16,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:23:16,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:23:16,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:23:16,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:23:16,789 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:23:16,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:23:16,789 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:23:16,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:23:16,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:23:16,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:23:16,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:23:16,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:23:16,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:23:16,790 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:23:16,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:23:16,790 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:23:16,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:23:16,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:23:16,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:23:16,791 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 13:23:16,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:23:16,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:23:16,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:23:16,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:23:16,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:23:16,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:23:16,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:23:16,792 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 13:23:16,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 13:23:17,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:23:17,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:23:17,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:23:17,040 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:23:17,040 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:23:17,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c [2022-12-13 13:23:17,941 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:23:18,136 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:23:18,137 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c [2022-12-13 13:23:18,148 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9caa51545/59fe51d0f40545cf90a7dc626526581b/FLAGbc05c1019 [2022-12-13 13:23:18,158 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9caa51545/59fe51d0f40545cf90a7dc626526581b [2022-12-13 13:23:18,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:23:18,160 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 13:23:18,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:23:18,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:23:18,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:23:18,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:23:18" (1/1) ... [2022-12-13 13:23:18,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff8cebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:23:18, skipping insertion in model container [2022-12-13 13:23:18,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:23:18" (1/1) ... [2022-12-13 13:23:18,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:23:18,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:23:18,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:23:18,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:23:18,302 WARN L237 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-mts.wvr.c[2533,2546] [2022-12-13 13:23:18,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:23:18,322 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:23:18,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:23:18,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:23:18,347 WARN L237 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-mts.wvr.c[2533,2546] [2022-12-13 13:23:18,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:23:18,367 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:23:18,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:23:18 WrapperNode [2022-12-13 13:23:18,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:23:18,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:23:18,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:23:18,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:23:18,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:23:18" (1/1) ... [2022-12-13 13:23:18,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:23:18" (1/1) ... [2022-12-13 13:23:18,418 INFO L138 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 13, calls inlined = 19, statements flattened = 225 [2022-12-13 13:23:18,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:23:18,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:23:18,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:23:18,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:23:18,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:23:18" (1/1) ... [2022-12-13 13:23:18,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:23:18" (1/1) ... [2022-12-13 13:23:18,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:23:18" (1/1) ... [2022-12-13 13:23:18,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:23:18" (1/1) ... [2022-12-13 13:23:18,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:23:18" (1/1) ... [2022-12-13 13:23:18,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:23:18" (1/1) ... [2022-12-13 13:23:18,468 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:23:18" (1/1) ... [2022-12-13 13:23:18,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:23:18" (1/1) ... [2022-12-13 13:23:18,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:23:18,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:23:18,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:23:18,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:23:18,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:23:18" (1/1) ... [2022-12-13 13:23:18,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:23:18,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 13:23:18,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:23:18,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:23:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:23:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:23:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:23:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:23:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 13:23:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 13:23:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 13:23:18,536 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 13:23:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 13:23:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 13:23:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:23:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 13:23:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 13:23:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 13:23:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:23:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:23:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:23:18,538 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 13:23:18,609 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 13:23:18,611 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:23:18,932 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 13:23:19,011 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:23:19,011 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 13:23:19,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:23:19 BoogieIcfgContainer [2022-12-13 13:23:19,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:23:19,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:23:19,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:23:19,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:23:19,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:23:18" (1/3) ... [2022-12-13 13:23:19,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47dddf59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:23:19, skipping insertion in model container [2022-12-13 13:23:19,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:23:18" (2/3) ... [2022-12-13 13:23:19,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47dddf59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:23:19, skipping insertion in model container [2022-12-13 13:23:19,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:23:19" (3/3) ... [2022-12-13 13:23:19,019 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-mts.wvr.c [2022-12-13 13:23:19,031 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:23:19,031 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:23:19,031 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:23:19,107 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 13:23:19,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 203 transitions, 430 flow [2022-12-13 13:23:19,250 INFO L130 PetriNetUnfolder]: 18/200 cut-off events. [2022-12-13 13:23:19,250 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 13:23:19,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 200 events. 18/200 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 296 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2022-12-13 13:23:19,256 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 203 transitions, 430 flow [2022-12-13 13:23:19,264 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 190 transitions, 398 flow [2022-12-13 13:23:19,266 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 13:23:19,291 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 182 places, 190 transitions, 398 flow [2022-12-13 13:23:19,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 190 transitions, 398 flow [2022-12-13 13:23:19,347 INFO L130 PetriNetUnfolder]: 18/190 cut-off events. [2022-12-13 13:23:19,348 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 13:23:19,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 190 events. 18/190 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 291 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2022-12-13 13:23:19,354 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 182 places, 190 transitions, 398 flow [2022-12-13 13:23:19,355 INFO L226 LiptonReduction]: Number of co-enabled transitions 7140 [2022-12-13 13:23:25,182 INFO L241 LiptonReduction]: Total number of compositions: 164 [2022-12-13 13:23:25,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:23:25,208 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3811c3e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 13:23:25,208 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 13:23:25,217 INFO L130 PetriNetUnfolder]: 4/25 cut-off events. [2022-12-13 13:23:25,217 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 13:23:25,218 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:23:25,218 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:23:25,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 13:23:25,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:23:25,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1980545478, now seen corresponding path program 1 times [2022-12-13 13:23:25,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:23:25,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755025494] [2022-12-13 13:23:25,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:23:25,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:23:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:23:25,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:23:25,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:23:25,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755025494] [2022-12-13 13:23:25,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755025494] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:23:25,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:23:25,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:23:25,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778488668] [2022-12-13 13:23:25,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:23:25,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:23:25,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:23:25,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:23:25,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:23:25,728 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2022-12-13 13:23:25,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:23:25,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:23:25,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2022-12-13 13:23:25,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:23:25,865 INFO L130 PetriNetUnfolder]: 619/873 cut-off events. [2022-12-13 13:23:25,865 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2022-12-13 13:23:25,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 873 events. 619/873 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3369 event pairs, 95 based on Foata normal form. 1/579 useless extension candidates. Maximal degree in co-relation 1491. Up to 688 conditions per place. [2022-12-13 13:23:25,870 INFO L137 encePairwiseOnDemand]: 21/26 looper letters, 36 selfloop transitions, 4 changer transitions 1/44 dead transitions. [2022-12-13 13:23:25,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 44 transitions, 203 flow [2022-12-13 13:23:25,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:23:25,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:23:25,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2022-12-13 13:23:25,878 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6538461538461539 [2022-12-13 13:23:25,879 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 70 flow. Second operand 3 states and 51 transitions. [2022-12-13 13:23:25,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 44 transitions, 203 flow [2022-12-13 13:23:25,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 44 transitions, 181 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 13:23:25,883 INFO L231 Difference]: Finished difference. Result has 29 places, 29 transitions, 84 flow [2022-12-13 13:23:25,884 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=29, PETRI_TRANSITIONS=29} [2022-12-13 13:23:25,886 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2022-12-13 13:23:25,886 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 13:23:25,887 INFO L89 Accepts]: Start accepts. Operand has 29 places, 29 transitions, 84 flow [2022-12-13 13:23:25,889 INFO L95 Accepts]: Finished accepts. [2022-12-13 13:23:25,889 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 13:23:25,889 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 29 transitions, 84 flow [2022-12-13 13:23:25,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 29 transitions, 84 flow [2022-12-13 13:23:25,896 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([709] thread3EXIT-->L89-2: Formula: (and (= v_thread3Thread1of1ForFork0_thidvar3_4 0) (= v_thread3Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem29#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0))) v_thread3Thread1of1ForFork0_thidvar0_4) (= v_thread3Thread1of1ForFork0_thidvar2_4 0)) InVars {thread3Thread1of1ForFork0_thidvar3=v_thread3Thread1of1ForFork0_thidvar3_4, thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_4, ULTIMATE.start_main_#t~mem29#1=|v_ULTIMATE.start_main_#t~mem29#1_5|, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_4, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_4} OutVars{thread3Thread1of1ForFork0_thidvar3=v_thread3Thread1of1ForFork0_thidvar3_4, thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_4, ULTIMATE.start_main_#t~mem29#1=|v_ULTIMATE.start_main_#t~mem29#1_5|, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_4, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][27], [Black: 200#(or (and (= ~mts1~0 (+ ~mts2~0 ~sum~0)) (not (<= (+ ~mts2~0 ~sum~0) ~mts3~0))) (and (<= (+ ~mts2~0 ~sum~0) ~mts3~0) (= ~mts1~0 ~mts3~0))), 198#true, 118#L89-2true]) [2022-12-13 13:23:25,896 INFO L382 tUnfolder$Statistics]: this new event has 24 ancestors and is cut-off event [2022-12-13 13:23:25,896 INFO L385 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 13:23:25,896 INFO L385 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 13:23:25,896 INFO L385 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2022-12-13 13:23:25,896 INFO L130 PetriNetUnfolder]: 23/70 cut-off events. [2022-12-13 13:23:25,896 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:23:25,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 70 events. 23/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 165 event pairs, 1 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 70. Up to 26 conditions per place. [2022-12-13 13:23:25,898 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 29 transitions, 84 flow [2022-12-13 13:23:25,898 INFO L226 LiptonReduction]: Number of co-enabled transitions 246 [2022-12-13 13:23:25,905 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 13:23:25,907 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 21 [2022-12-13 13:23:25,907 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 29 transitions, 84 flow [2022-12-13 13:23:25,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:23:25,907 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:23:25,907 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:23:25,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:23:25,908 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 13:23:25,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:23:25,908 INFO L85 PathProgramCache]: Analyzing trace with hash 2108477278, now seen corresponding path program 1 times [2022-12-13 13:23:25,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:23:25,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419312918] [2022-12-13 13:23:25,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:23:25,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:23:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:23:26,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:23:26,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:23:26,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419312918] [2022-12-13 13:23:26,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419312918] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:23:26,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:23:26,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:23:26,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290811895] [2022-12-13 13:23:26,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:23:26,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:23:26,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:23:26,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:23:26,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:23:26,011 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2022-12-13 13:23:26,011 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 29 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:23:26,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:23:26,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2022-12-13 13:23:26,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:23:26,089 INFO L130 PetriNetUnfolder]: 570/825 cut-off events. [2022-12-13 13:23:26,089 INFO L131 PetriNetUnfolder]: For 154/163 co-relation queries the response was YES. [2022-12-13 13:23:26,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1931 conditions, 825 events. 570/825 cut-off events. For 154/163 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3290 event pairs, 318 based on Foata normal form. 0/624 useless extension candidates. Maximal degree in co-relation 372. Up to 803 conditions per place. [2022-12-13 13:23:26,092 INFO L137 encePairwiseOnDemand]: 23/26 looper letters, 25 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2022-12-13 13:23:26,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 140 flow [2022-12-13 13:23:26,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:23:26,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:23:26,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2022-12-13 13:23:26,093 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4358974358974359 [2022-12-13 13:23:26,094 INFO L175 Difference]: Start difference. First operand has 29 places, 29 transitions, 84 flow. Second operand 3 states and 34 transitions. [2022-12-13 13:23:26,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 140 flow [2022-12-13 13:23:26,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:23:26,095 INFO L231 Difference]: Finished difference. Result has 31 places, 30 transitions, 92 flow [2022-12-13 13:23:26,095 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=31, PETRI_TRANSITIONS=30} [2022-12-13 13:23:26,095 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2022-12-13 13:23:26,095 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 13:23:26,095 INFO L89 Accepts]: Start accepts. Operand has 31 places, 30 transitions, 92 flow [2022-12-13 13:23:26,096 INFO L95 Accepts]: Finished accepts. [2022-12-13 13:23:26,096 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 13:23:26,096 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 30 transitions, 92 flow [2022-12-13 13:23:26,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 30 transitions, 92 flow [2022-12-13 13:23:26,102 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([709] thread3EXIT-->L89-2: Formula: (and (= v_thread3Thread1of1ForFork0_thidvar3_4 0) (= v_thread3Thread1of1ForFork0_thidvar1_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem29#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0))) v_thread3Thread1of1ForFork0_thidvar0_4) (= v_thread3Thread1of1ForFork0_thidvar2_4 0)) InVars {thread3Thread1of1ForFork0_thidvar3=v_thread3Thread1of1ForFork0_thidvar3_4, thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_4, ULTIMATE.start_main_#t~mem29#1=|v_ULTIMATE.start_main_#t~mem29#1_5|, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_4, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_4} OutVars{thread3Thread1of1ForFork0_thidvar3=v_thread3Thread1of1ForFork0_thidvar3_4, thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_4, ULTIMATE.start_main_#t~mem29#1=|v_ULTIMATE.start_main_#t~mem29#1_5|, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_4, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][28], [Black: 200#(or (and (= ~mts1~0 (+ ~mts2~0 ~sum~0)) (not (<= (+ ~mts2~0 ~sum~0) ~mts3~0))) (and (<= (+ ~mts2~0 ~sum~0) ~mts3~0) (= ~mts1~0 ~mts3~0))), 118#L89-2true, Black: 204#(and (= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0)), 202#true]) [2022-12-13 13:23:26,102 INFO L382 tUnfolder$Statistics]: this new event has 25 ancestors and is cut-off event [2022-12-13 13:23:26,102 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2022-12-13 13:23:26,102 INFO L385 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 13:23:26,102 INFO L385 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 13:23:26,102 INFO L130 PetriNetUnfolder]: 23/71 cut-off events. [2022-12-13 13:23:26,102 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:23:26,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 71 events. 23/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 164 event pairs, 1 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 99. Up to 26 conditions per place. [2022-12-13 13:23:26,103 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 30 transitions, 92 flow [2022-12-13 13:23:26,103 INFO L226 LiptonReduction]: Number of co-enabled transitions 246 [2022-12-13 13:23:27,161 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 13:23:27,162 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1067 [2022-12-13 13:23:27,162 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 29 transitions, 88 flow [2022-12-13 13:23:27,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:23:27,162 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:23:27,162 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:23:27,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:23:27,162 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 13:23:27,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:23:27,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1734929599, now seen corresponding path program 1 times [2022-12-13 13:23:27,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:23:27,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218963974] [2022-12-13 13:23:27,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:23:27,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:23:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:23:27,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:23:27,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:23:27,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218963974] [2022-12-13 13:23:27,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218963974] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:23:27,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:23:27,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:23:27,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004555485] [2022-12-13 13:23:27,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:23:27,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:23:27,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:23:27,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:23:27,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:23:27,232 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 26 [2022-12-13 13:23:27,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 29 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:23:27,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:23:27,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 26 [2022-12-13 13:23:27,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:23:27,343 INFO L130 PetriNetUnfolder]: 677/961 cut-off events. [2022-12-13 13:23:27,343 INFO L131 PetriNetUnfolder]: For 171/175 co-relation queries the response was YES. [2022-12-13 13:23:27,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2223 conditions, 961 events. 677/961 cut-off events. For 171/175 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3910 event pairs, 223 based on Foata normal form. 1/796 useless extension candidates. Maximal degree in co-relation 2213. Up to 609 conditions per place. [2022-12-13 13:23:27,347 INFO L137 encePairwiseOnDemand]: 22/26 looper letters, 37 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2022-12-13 13:23:27,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 43 transitions, 210 flow [2022-12-13 13:23:27,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:23:27,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:23:27,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2022-12-13 13:23:27,360 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4326923076923077 [2022-12-13 13:23:27,360 INFO L175 Difference]: Start difference. First operand has 30 places, 29 transitions, 88 flow. Second operand 4 states and 45 transitions. [2022-12-13 13:23:27,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 43 transitions, 210 flow [2022-12-13 13:23:27,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 43 transitions, 200 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-12-13 13:23:27,361 INFO L231 Difference]: Finished difference. Result has 32 places, 30 transitions, 97 flow [2022-12-13 13:23:27,362 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=32, PETRI_TRANSITIONS=30} [2022-12-13 13:23:27,362 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2022-12-13 13:23:27,362 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 13:23:27,362 INFO L89 Accepts]: Start accepts. Operand has 32 places, 30 transitions, 97 flow [2022-12-13 13:23:27,363 INFO L95 Accepts]: Finished accepts. [2022-12-13 13:23:27,363 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 13:23:27,363 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 30 transitions, 97 flow [2022-12-13 13:23:27,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 97 flow [2022-12-13 13:23:27,368 INFO L130 PetriNetUnfolder]: 21/62 cut-off events. [2022-12-13 13:23:27,369 INFO L131 PetriNetUnfolder]: For 9/15 co-relation queries the response was YES. [2022-12-13 13:23:27,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 62 events. 21/62 cut-off events. For 9/15 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 121 event pairs, 1 based on Foata normal form. 3/57 useless extension candidates. Maximal degree in co-relation 80. Up to 25 conditions per place. [2022-12-13 13:23:27,369 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 30 transitions, 97 flow [2022-12-13 13:23:27,369 INFO L226 LiptonReduction]: Number of co-enabled transitions 246 [2022-12-13 13:23:27,371 ERROR L806 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-13 13:23:27,372 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 13:23:27,372 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-13 13:23:27,372 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 28 transitions, 83 flow [2022-12-13 13:23:27,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:23:27,373 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:23:27,373 INFO L214 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] [2022-12-13 13:23:27,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:23:27,373 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 13:23:27,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:23:27,373 INFO L85 PathProgramCache]: Analyzing trace with hash -956398354, now seen corresponding path program 1 times [2022-12-13 13:23:27,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:23:27,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613864220] [2022-12-13 13:23:27,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:23:27,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:23:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:23:27,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:23:27,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:23:27,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613864220] [2022-12-13 13:23:27,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613864220] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:23:27,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220856014] [2022-12-13 13:23:27,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:23:27,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:23:27,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 13:23:27,485 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) [2022-12-13 13:23:27,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:23:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:23:27,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 13:23:27,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:23:27,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:23:27,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:23:27,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220856014] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:23:27,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:23:27,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-12-13 13:23:27,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654873894] [2022-12-13 13:23:27,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:23:27,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:23:27,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:23:27,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:23:27,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:23:27,655 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 26 [2022-12-13 13:23:27,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 83 flow. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:23:27,655 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:23:27,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 26 [2022-12-13 13:23:27,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:23:27,760 INFO L130 PetriNetUnfolder]: 282/437 cut-off events. [2022-12-13 13:23:27,761 INFO L131 PetriNetUnfolder]: For 37/111 co-relation queries the response was YES. [2022-12-13 13:23:27,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 986 conditions, 437 events. 282/437 cut-off events. For 37/111 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1790 event pairs, 99 based on Foata normal form. 78/473 useless extension candidates. Maximal degree in co-relation 968. Up to 218 conditions per place. [2022-12-13 13:23:27,762 INFO L137 encePairwiseOnDemand]: 19/26 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2022-12-13 13:23:27,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 42 transitions, 198 flow [2022-12-13 13:23:27,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:23:27,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:23:27,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 44 transitions. [2022-12-13 13:23:27,763 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.28205128205128205 [2022-12-13 13:23:27,764 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 83 flow. Second operand 6 states and 44 transitions. [2022-12-13 13:23:27,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 42 transitions, 198 flow [2022-12-13 13:23:27,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 42 transitions, 194 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 13:23:27,764 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2022-12-13 13:23:27,764 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2022-12-13 13:23:27,765 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, -5 predicate places. [2022-12-13 13:23:27,765 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 13:23:27,765 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 0 transitions, 0 flow [2022-12-13 13:23:27,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 13:23:27,766 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 13:23:27,766 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:23:27,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-13 13:23:27,766 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 13:23:27,766 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 13:23:27,766 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 13:23:27,767 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-13 13:23:27,767 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 13:23:27,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:23:27,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 13:23:27,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 13:23:27,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 13:23:27,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-13 13:23:27,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:23:27,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:23:27,974 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 13:23:27,977 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:23:27,977 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:23:27,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:23:27 BasicIcfg [2022-12-13 13:23:27,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:23:27,979 INFO L158 Benchmark]: Toolchain (without parser) took 9818.95ms. Allocated memory was 194.0MB in the beginning and 329.3MB in the end (delta: 135.3MB). Free memory was 170.6MB in the beginning and 243.2MB in the end (delta: -72.5MB). Peak memory consumption was 63.7MB. Max. memory is 8.0GB. [2022-12-13 13:23:27,979 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 194.0MB. Free memory is still 171.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 13:23:27,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.73ms. Allocated memory is still 194.0MB. Free memory was 170.3MB in the beginning and 157.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-13 13:23:27,980 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.53ms. Allocated memory is still 194.0MB. Free memory was 157.7MB in the beginning and 155.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 13:23:27,980 INFO L158 Benchmark]: Boogie Preprocessor took 51.69ms. Allocated memory is still 194.0MB. Free memory was 155.6MB in the beginning and 153.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 13:23:27,980 INFO L158 Benchmark]: RCFGBuilder took 540.98ms. Allocated memory is still 194.0MB. Free memory was 153.5MB in the beginning and 118.4MB in the end (delta: 35.2MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2022-12-13 13:23:27,980 INFO L158 Benchmark]: TraceAbstraction took 8964.11ms. Allocated memory was 194.0MB in the beginning and 329.3MB in the end (delta: 135.3MB). Free memory was 117.4MB in the beginning and 243.2MB in the end (delta: -125.8MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. [2022-12-13 13:23:27,981 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 194.0MB. Free memory is still 171.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 206.73ms. Allocated memory is still 194.0MB. Free memory was 170.3MB in the beginning and 157.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.53ms. Allocated memory is still 194.0MB. Free memory was 157.7MB in the beginning and 155.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.69ms. Allocated memory is still 194.0MB. Free memory was 155.6MB in the beginning and 153.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 540.98ms. Allocated memory is still 194.0MB. Free memory was 153.5MB in the beginning and 118.4MB in the end (delta: 35.2MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * TraceAbstraction took 8964.11ms. Allocated memory was 194.0MB in the beginning and 329.3MB in the end (delta: 135.3MB). Free memory was 117.4MB in the beginning and 243.2MB in the end (delta: -125.8MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.8s, 182 PlacesBefore, 32 PlacesAfterwards, 190 TransitionsBefore, 26 TransitionsAfterwards, 7140 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 68 TrivialYvCompositions, 82 ConcurrentYvCompositions, 14 ChoiceCompositions, 164 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4534, independent: 4509, independent conditional: 4509, independent unconditional: 0, dependent: 25, dependent conditional: 25, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4534, independent: 4509, independent conditional: 0, independent unconditional: 4509, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4534, independent: 4509, independent conditional: 0, independent unconditional: 4509, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4534, independent: 4509, independent conditional: 0, independent unconditional: 4509, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4211, independent: 4192, independent conditional: 0, independent unconditional: 4192, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4211, independent: 4192, independent conditional: 0, independent unconditional: 4192, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 19, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 51, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4534, independent: 317, independent conditional: 0, independent unconditional: 317, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 4211, unknown conditional: 0, unknown unconditional: 4211] , Statistics on independence cache: Total cache size (in pairs): 7813, Positive cache size: 7794, Positive conditional cache size: 0, Positive unconditional cache size: 7794, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 29 PlacesBefore, 29 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 7, unknown conditional: 1, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 5, Positive conditional cache size: 1, Positive unconditional cache size: 4, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1s, 31 PlacesBefore, 30 PlacesAfterwards, 30 TransitionsBefore, 29 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, independent: 8, independent conditional: 8, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 12, independent: 8, independent conditional: 2, independent unconditional: 6, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12, independent: 8, independent conditional: 2, independent unconditional: 6, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12, independent: 8, independent conditional: 2, independent unconditional: 6, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12, independent: 8, independent conditional: 2, independent unconditional: 6, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 5, Positive conditional cache size: 1, Positive unconditional cache size: 4, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 32 PlacesBefore, 32 PlacesAfterwards, 30 TransitionsBefore, 28 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 34, independent: 32, independent conditional: 32, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 34, independent: 32, independent conditional: 30, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 34, independent: 32, independent conditional: 6, independent unconditional: 26, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 34, independent: 32, independent conditional: 6, independent unconditional: 26, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, independent: 11, independent conditional: 2, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 34, independent: 21, independent conditional: 4, independent unconditional: 17, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 11, unknown conditional: 2, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 16, Positive conditional cache size: 3, Positive unconditional cache size: 13, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 24, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 16, Positive conditional cache size: 3, Positive unconditional cache size: 13, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 92]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 270 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 242 IncrementalHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 4 mSDtfsCounter, 242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 620 SizeOfPredicates, 6 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 13:23:27,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...