/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-bad-dot-product-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 07:34:17,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 07:34:17,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 07:34:17,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 07:34:17,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 07:34:17,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 07:34:17,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 07:34:17,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 07:34:17,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 07:34:17,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 07:34:17,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 07:34:17,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 07:34:17,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 07:34:17,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 07:34:17,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 07:34:18,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 07:34:18,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 07:34:18,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 07:34:18,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 07:34:18,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 07:34:18,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 07:34:18,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 07:34:18,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 07:34:18,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 07:34:18,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 07:34:18,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 07:34:18,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 07:34:18,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 07:34:18,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 07:34:18,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 07:34:18,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 07:34:18,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 07:34:18,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 07:34:18,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 07:34:18,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 07:34:18,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 07:34:18,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 07:34:18,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 07:34:18,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 07:34:18,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 07:34:18,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 07:34:18,024 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 [2022-12-06 07:34:18,051 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 07:34:18,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 07:34:18,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 07:34:18,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 07:34:18,053 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 07:34:18,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 07:34:18,054 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 07:34:18,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 07:34:18,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 07:34:18,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 07:34:18,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 07:34:18,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 07:34:18,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 07:34:18,055 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 07:34:18,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 07:34:18,056 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 07:34:18,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 07:34:18,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 07:34:18,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 07:34:18,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 07:34:18,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 07:34:18,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:34:18,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 07:34:18,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 07:34:18,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 07:34:18,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 07:34:18,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 07:34:18,057 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 07:34:18,057 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 07:34:18,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 07:34:18,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 07:34:18,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 07:34:18,348 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 07:34:18,349 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 07:34:18,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c [2022-12-06 07:34:19,295 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 07:34:19,500 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 07:34:19,501 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c [2022-12-06 07:34:19,507 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28be80da7/2afaf23ed237477bab7e8d6d22b119bd/FLAGc52854ea2 [2022-12-06 07:34:19,523 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28be80da7/2afaf23ed237477bab7e8d6d22b119bd [2022-12-06 07:34:19,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 07:34:19,526 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 07:34:19,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 07:34:19,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 07:34:19,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 07:34:19,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:34:19" (1/1) ... [2022-12-06 07:34:19,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43c38321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:19, skipping insertion in model container [2022-12-06 07:34:19,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:34:19" (1/1) ... [2022-12-06 07:34:19,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 07:34:19,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 07:34:19,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:34:19,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:34:19,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:34:19,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:34:19,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:34:19,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:34:19,678 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-bad-dot-product-alt.wvr.c[3182,3195] [2022-12-06 07:34:19,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:34:19,698 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 07:34:19,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:34:19,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:34:19,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:34:19,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:34:19,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:34:19,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:34:19,731 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-bad-dot-product-alt.wvr.c[3182,3195] [2022-12-06 07:34:19,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:34:19,751 INFO L208 MainTranslator]: Completed translation [2022-12-06 07:34:19,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:19 WrapperNode [2022-12-06 07:34:19,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 07:34:19,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 07:34:19,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 07:34:19,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 07:34:19,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:19" (1/1) ... [2022-12-06 07:34:19,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:19" (1/1) ... [2022-12-06 07:34:19,811 INFO L138 Inliner]: procedures = 28, calls = 74, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 362 [2022-12-06 07:34:19,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 07:34:19,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 07:34:19,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 07:34:19,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 07:34:19,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:19" (1/1) ... [2022-12-06 07:34:19,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:19" (1/1) ... [2022-12-06 07:34:19,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:19" (1/1) ... [2022-12-06 07:34:19,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:19" (1/1) ... [2022-12-06 07:34:19,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:19" (1/1) ... [2022-12-06 07:34:19,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:19" (1/1) ... [2022-12-06 07:34:19,854 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:19" (1/1) ... [2022-12-06 07:34:19,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:19" (1/1) ... [2022-12-06 07:34:19,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 07:34:19,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 07:34:19,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 07:34:19,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 07:34:19,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:19" (1/1) ... [2022-12-06 07:34:19,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:34:19,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:34:19,896 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) [2022-12-06 07:34:19,916 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 [2022-12-06 07:34:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 07:34:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-06 07:34:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 07:34:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 07:34:19,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 07:34:19,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-06 07:34:19,927 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 07:34:19,927 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 07:34:19,927 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 07:34:19,927 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 07:34:19,927 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 07:34:19,927 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 07:34:19,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 07:34:19,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 07:34:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 07:34:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 07:34:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 07:34:19,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 07:34:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 07:34:19,929 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 07:34:20,010 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 07:34:20,011 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 07:34:20,373 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 07:34:20,483 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 07:34:20,490 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2022-12-06 07:34:20,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:34:20 BoogieIcfgContainer [2022-12-06 07:34:20,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 07:34:20,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 07:34:20,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 07:34:20,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 07:34:20,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:34:19" (1/3) ... [2022-12-06 07:34:20,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545c8873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:34:20, skipping insertion in model container [2022-12-06 07:34:20,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:19" (2/3) ... [2022-12-06 07:34:20,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545c8873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:34:20, skipping insertion in model container [2022-12-06 07:34:20,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:34:20" (3/3) ... [2022-12-06 07:34:20,499 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2022-12-06 07:34:20,510 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 07:34:20,510 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 07:34:20,510 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 07:34:20,570 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 07:34:20,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 298 places, 323 transitions, 670 flow [2022-12-06 07:34:20,693 INFO L130 PetriNetUnfolder]: 35/320 cut-off events. [2022-12-06 07:34:20,693 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 07:34:20,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 320 events. 35/320 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 621 event pairs, 0 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 255. Up to 2 conditions per place. [2022-12-06 07:34:20,701 INFO L82 GeneralOperation]: Start removeDead. Operand has 298 places, 323 transitions, 670 flow [2022-12-06 07:34:20,742 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 285 places, 310 transitions, 638 flow [2022-12-06 07:34:20,744 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:34:20,755 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 285 places, 310 transitions, 638 flow [2022-12-06 07:34:20,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 310 transitions, 638 flow [2022-12-06 07:34:20,800 INFO L130 PetriNetUnfolder]: 35/310 cut-off events. [2022-12-06 07:34:20,800 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 07:34:20,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 310 events. 35/310 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 619 event pairs, 0 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 255. Up to 2 conditions per place. [2022-12-06 07:34:20,811 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 285 places, 310 transitions, 638 flow [2022-12-06 07:34:20,811 INFO L188 LiptonReduction]: Number of co-enabled transitions 11934 [2022-12-06 07:34:23,240 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:23,241 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:23,243 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:23,243 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:23,956 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:23,956 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:23,958 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:23,958 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:24,178 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:24,179 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:24,180 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:24,181 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:24,214 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:24,215 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:24,217 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:24,219 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:24,582 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:24,583 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:24,584 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:24,585 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:25,563 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:25,564 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:25,874 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:25,875 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:25,877 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:25,877 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:26,757 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:26,758 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:26,759 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:26,759 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:27,310 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:27,310 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:27,312 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:27,312 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:27,363 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:27,364 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:28,516 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:28,517 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:28,518 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:28,518 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:31,237 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:31,237 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:31,239 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:31,239 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:31,444 INFO L203 LiptonReduction]: Total number of compositions: 271 [2022-12-06 07:34:31,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 07:34:31,485 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;@1e170d7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 07:34:31,485 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 07:34:31,503 INFO L130 PetriNetUnfolder]: 9/39 cut-off events. [2022-12-06 07:34:31,503 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 07:34:31,503 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:34:31,504 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:34:31,504 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)] === [2022-12-06 07:34:31,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:34:31,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1957612998, now seen corresponding path program 1 times [2022-12-06 07:34:31,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:34:31,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213719520] [2022-12-06 07:34:31,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:34:31,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:34:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:34:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:34:31,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:34:31,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213719520] [2022-12-06 07:34:31,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213719520] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:34:31,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:34:31,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:34:31,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514656851] [2022-12-06 07:34:31,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:34:31,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:34:31,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:34:31,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:34:31,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:34:31,930 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-06 07:34:31,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 40 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-12-06 07:34:31,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:34:31,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-06 07:34:31,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:34:32,192 INFO L130 PetriNetUnfolder]: 1391/1858 cut-off events. [2022-12-06 07:34:32,192 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-12-06 07:34:32,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3831 conditions, 1858 events. 1391/1858 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 7096 event pairs, 721 based on Foata normal form. 0/1164 useless extension candidates. Maximal degree in co-relation 3413. Up to 1821 conditions per place. [2022-12-06 07:34:32,201 INFO L137 encePairwiseOnDemand]: 33/40 looper letters, 35 selfloop transitions, 4 changer transitions 7/49 dead transitions. [2022-12-06 07:34:32,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 49 transitions, 208 flow [2022-12-06 07:34:32,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:34:32,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:34:32,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2022-12-06 07:34:32,212 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.32 [2022-12-06 07:34:32,213 INFO L175 Difference]: Start difference. First operand has 41 places, 40 transitions, 98 flow. Second operand 5 states and 64 transitions. [2022-12-06 07:34:32,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 49 transitions, 208 flow [2022-12-06 07:34:32,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 196 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-06 07:34:32,220 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 116 flow [2022-12-06 07:34:32,222 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2022-12-06 07:34:32,225 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2022-12-06 07:34:32,225 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:34:32,226 INFO L89 Accepts]: Start accepts. Operand has 42 places, 42 transitions, 116 flow [2022-12-06 07:34:32,228 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:34:32,229 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:34:32,229 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 42 transitions, 116 flow [2022-12-06 07:34:32,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 42 transitions, 116 flow [2022-12-06 07:34:32,241 INFO L130 PetriNetUnfolder]: 9/42 cut-off events. [2022-12-06 07:34:32,241 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 07:34:32,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 42 events. 9/42 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 46. Up to 6 conditions per place. [2022-12-06 07:34:32,241 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 42 transitions, 116 flow [2022-12-06 07:34:32,241 INFO L188 LiptonReduction]: Number of co-enabled transitions 414 [2022-12-06 07:34:32,285 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:34:32,286 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 61 [2022-12-06 07:34:32,286 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 42 transitions, 116 flow [2022-12-06 07:34:32,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-12-06 07:34:32,286 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:34:32,286 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:34:32,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 07:34:32,287 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)] === [2022-12-06 07:34:32,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:34:32,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1367876668, now seen corresponding path program 1 times [2022-12-06 07:34:32,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:34:32,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795502879] [2022-12-06 07:34:32,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:34:32,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:34:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:34:32,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 07:34:32,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:34:32,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795502879] [2022-12-06 07:34:32,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795502879] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:34:32,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124212734] [2022-12-06 07:34:32,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:34:32,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:34:32,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:34:32,486 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) [2022-12-06 07:34:32,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 07:34:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:34:32,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-06 07:34:32,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:34:32,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 07:34:32,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:34:32,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 07:34:32,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124212734] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-06 07:34:32,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-06 07:34:32,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-12-06 07:34:32,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819294017] [2022-12-06 07:34:32,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:34:32,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 07:34:32,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:34:32,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 07:34:32,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-06 07:34:32,721 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 40 [2022-12-06 07:34:32,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 42 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-12-06 07:34:32,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:34:32,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 40 [2022-12-06 07:34:32,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:34:32,961 INFO L130 PetriNetUnfolder]: 1577/2098 cut-off events. [2022-12-06 07:34:32,961 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-06 07:34:32,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4270 conditions, 2098 events. 1577/2098 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 8363 event pairs, 342 based on Foata normal form. 0/1403 useless extension candidates. Maximal degree in co-relation 4247. Up to 1314 conditions per place. [2022-12-06 07:34:32,969 INFO L137 encePairwiseOnDemand]: 33/40 looper letters, 50 selfloop transitions, 6 changer transitions 0/58 dead transitions. [2022-12-06 07:34:32,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 58 transitions, 262 flow [2022-12-06 07:34:32,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:34:32,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:34:32,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 66 transitions. [2022-12-06 07:34:32,972 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.33 [2022-12-06 07:34:32,972 INFO L175 Difference]: Start difference. First operand has 40 places, 42 transitions, 116 flow. Second operand 5 states and 66 transitions. [2022-12-06 07:34:32,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 58 transitions, 262 flow [2022-12-06 07:34:32,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 58 transitions, 250 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-06 07:34:32,974 INFO L231 Difference]: Finished difference. Result has 43 places, 44 transitions, 135 flow [2022-12-06 07:34:32,974 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=135, PETRI_PLACES=43, PETRI_TRANSITIONS=44} [2022-12-06 07:34:32,975 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2022-12-06 07:34:32,975 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:34:32,975 INFO L89 Accepts]: Start accepts. Operand has 43 places, 44 transitions, 135 flow [2022-12-06 07:34:32,976 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:34:32,976 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:34:32,977 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 44 transitions, 135 flow [2022-12-06 07:34:32,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 44 transitions, 135 flow [2022-12-06 07:34:32,982 INFO L130 PetriNetUnfolder]: 10/44 cut-off events. [2022-12-06 07:34:32,982 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 07:34:32,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 44 events. 10/44 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 51. Up to 6 conditions per place. [2022-12-06 07:34:32,983 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 44 transitions, 135 flow [2022-12-06 07:34:32,983 INFO L188 LiptonReduction]: Number of co-enabled transitions 478 [2022-12-06 07:34:32,997 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:32,997 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:32,999 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:32,999 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:34,505 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:34,505 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:34,507 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:34,507 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:34,849 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 07:34:34,850 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1875 [2022-12-06 07:34:34,850 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 42 transitions, 125 flow [2022-12-06 07:34:34,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-12-06 07:34:34,850 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:34:34,851 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:34:34,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-06 07:34:35,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:34:35,051 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)] === [2022-12-06 07:34:35,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:34:35,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1859677446, now seen corresponding path program 1 times [2022-12-06 07:34:35,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:34:35,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703960935] [2022-12-06 07:34:35,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:34:35,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:34:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:34:35,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:34:35,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:34:35,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703960935] [2022-12-06 07:34:35,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703960935] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:34:35,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:34:35,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 07:34:35,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450299348] [2022-12-06 07:34:35,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:34:35,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 07:34:35,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:34:35,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 07:34:35,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 07:34:35,152 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 40 [2022-12-06 07:34:35,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 42 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2022-12-06 07:34:35,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:34:35,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 40 [2022-12-06 07:34:35,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:34:35,595 INFO L130 PetriNetUnfolder]: 2847/3901 cut-off events. [2022-12-06 07:34:35,595 INFO L131 PetriNetUnfolder]: For 1062/1324 co-relation queries the response was YES. [2022-12-06 07:34:35,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9102 conditions, 3901 events. 2847/3901 cut-off events. For 1062/1324 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 16440 event pairs, 802 based on Foata normal form. 262/3371 useless extension candidates. Maximal degree in co-relation 9080. Up to 1671 conditions per place. [2022-12-06 07:34:35,609 INFO L137 encePairwiseOnDemand]: 33/40 looper letters, 104 selfloop transitions, 10 changer transitions 0/115 dead transitions. [2022-12-06 07:34:35,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 115 transitions, 561 flow [2022-12-06 07:34:35,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 07:34:35,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 07:34:35,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 115 transitions. [2022-12-06 07:34:35,610 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2022-12-06 07:34:35,610 INFO L175 Difference]: Start difference. First operand has 41 places, 42 transitions, 125 flow. Second operand 7 states and 115 transitions. [2022-12-06 07:34:35,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 115 transitions, 561 flow [2022-12-06 07:34:35,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 115 transitions, 537 flow, removed 5 selfloop flow, removed 3 redundant places. [2022-12-06 07:34:35,613 INFO L231 Difference]: Finished difference. Result has 47 places, 48 transitions, 166 flow [2022-12-06 07:34:35,613 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=166, PETRI_PLACES=47, PETRI_TRANSITIONS=48} [2022-12-06 07:34:35,613 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2022-12-06 07:34:35,613 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:34:35,614 INFO L89 Accepts]: Start accepts. Operand has 47 places, 48 transitions, 166 flow [2022-12-06 07:34:35,614 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:34:35,614 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:34:35,614 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 48 transitions, 166 flow [2022-12-06 07:34:35,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 48 transitions, 166 flow [2022-12-06 07:34:35,622 INFO L130 PetriNetUnfolder]: 23/93 cut-off events. [2022-12-06 07:34:35,622 INFO L131 PetriNetUnfolder]: For 13/14 co-relation queries the response was YES. [2022-12-06 07:34:35,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 93 events. 23/93 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 236 event pairs, 0 based on Foata normal form. 1/73 useless extension candidates. Maximal degree in co-relation 115. Up to 12 conditions per place. [2022-12-06 07:34:35,623 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 48 transitions, 166 flow [2022-12-06 07:34:35,623 INFO L188 LiptonReduction]: Number of co-enabled transitions 686 [2022-12-06 07:34:35,624 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:34:35,625 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 12 [2022-12-06 07:34:35,625 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 48 transitions, 166 flow [2022-12-06 07:34:35,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2022-12-06 07:34:35,625 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:34:35,625 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:34:35,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 07:34:35,626 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)] === [2022-12-06 07:34:35,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:34:35,626 INFO L85 PathProgramCache]: Analyzing trace with hash 437331657, now seen corresponding path program 1 times [2022-12-06 07:34:35,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:34:35,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850934322] [2022-12-06 07:34:35,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:34:35,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:34:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:34:35,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:34:35,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:34:35,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850934322] [2022-12-06 07:34:35,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850934322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:34:35,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:34:35,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 07:34:35,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155370760] [2022-12-06 07:34:35,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:34:35,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:34:35,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:34:35,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:34:35,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:34:35,689 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-06 07:34:35,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 48 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-12-06 07:34:35,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:34:35,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-06 07:34:35,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:34:36,131 INFO L130 PetriNetUnfolder]: 3081/4386 cut-off events. [2022-12-06 07:34:36,131 INFO L131 PetriNetUnfolder]: For 2425/3061 co-relation queries the response was YES. [2022-12-06 07:34:36,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11796 conditions, 4386 events. 3081/4386 cut-off events. For 2425/3061 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 20999 event pairs, 1910 based on Foata normal form. 740/4175 useless extension candidates. Maximal degree in co-relation 7404. Up to 3075 conditions per place. [2022-12-06 07:34:36,147 INFO L137 encePairwiseOnDemand]: 35/40 looper letters, 43 selfloop transitions, 3 changer transitions 29/80 dead transitions. [2022-12-06 07:34:36,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 80 transitions, 413 flow [2022-12-06 07:34:36,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:34:36,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:34:36,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 81 transitions. [2022-12-06 07:34:36,150 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.405 [2022-12-06 07:34:36,150 INFO L175 Difference]: Start difference. First operand has 47 places, 48 transitions, 166 flow. Second operand 5 states and 81 transitions. [2022-12-06 07:34:36,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 80 transitions, 413 flow [2022-12-06 07:34:36,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 80 transitions, 405 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-06 07:34:36,157 INFO L231 Difference]: Finished difference. Result has 51 places, 49 transitions, 177 flow [2022-12-06 07:34:36,157 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=177, PETRI_PLACES=51, PETRI_TRANSITIONS=49} [2022-12-06 07:34:36,159 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 10 predicate places. [2022-12-06 07:34:36,159 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:34:36,159 INFO L89 Accepts]: Start accepts. Operand has 51 places, 49 transitions, 177 flow [2022-12-06 07:34:36,159 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:34:36,159 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:34:36,160 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 49 transitions, 177 flow [2022-12-06 07:34:36,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 49 transitions, 177 flow [2022-12-06 07:34:36,169 INFO L130 PetriNetUnfolder]: 22/93 cut-off events. [2022-12-06 07:34:36,169 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-12-06 07:34:36,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 93 events. 22/93 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 231 event pairs, 1 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 131. Up to 10 conditions per place. [2022-12-06 07:34:36,170 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 49 transitions, 177 flow [2022-12-06 07:34:36,170 INFO L188 LiptonReduction]: Number of co-enabled transitions 686 [2022-12-06 07:34:36,172 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:34:36,176 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 17 [2022-12-06 07:34:36,176 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 49 transitions, 177 flow [2022-12-06 07:34:36,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-12-06 07:34:36,176 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:34:36,176 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:34:36,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 07:34:36,176 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 07:34:36,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:34:36,177 INFO L85 PathProgramCache]: Analyzing trace with hash -474845525, now seen corresponding path program 1 times [2022-12-06 07:34:36,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:34:36,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253119530] [2022-12-06 07:34:36,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:34:36,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:34:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:34:36,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:34:36,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:34:36,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253119530] [2022-12-06 07:34:36,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253119530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:34:36,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:34:36,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 07:34:36,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074709431] [2022-12-06 07:34:36,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:34:36,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:34:36,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:34:36,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:34:36,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:34:36,367 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-06 07:34:36,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 49 transitions, 177 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2022-12-06 07:34:36,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:34:36,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-06 07:34:36,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:34:36,921 INFO L130 PetriNetUnfolder]: 3901/5648 cut-off events. [2022-12-06 07:34:36,921 INFO L131 PetriNetUnfolder]: For 3480/4330 co-relation queries the response was YES. [2022-12-06 07:34:36,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14958 conditions, 5648 events. 3901/5648 cut-off events. For 3480/4330 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 29432 event pairs, 2463 based on Foata normal form. 1194/5628 useless extension candidates. Maximal degree in co-relation 10257. Up to 3078 conditions per place. [2022-12-06 07:34:36,938 INFO L137 encePairwiseOnDemand]: 34/40 looper letters, 41 selfloop transitions, 4 changer transitions 66/116 dead transitions. [2022-12-06 07:34:36,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 116 transitions, 610 flow [2022-12-06 07:34:36,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:34:36,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:34:36,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2022-12-06 07:34:36,939 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.56 [2022-12-06 07:34:36,939 INFO L175 Difference]: Start difference. First operand has 50 places, 49 transitions, 177 flow. Second operand 5 states and 112 transitions. [2022-12-06 07:34:36,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 116 transitions, 610 flow [2022-12-06 07:34:36,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 116 transitions, 601 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-12-06 07:34:36,953 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 199 flow [2022-12-06 07:34:36,953 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=199, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2022-12-06 07:34:36,954 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2022-12-06 07:34:36,954 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:34:36,954 INFO L89 Accepts]: Start accepts. Operand has 54 places, 50 transitions, 199 flow [2022-12-06 07:34:36,955 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:34:36,955 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:34:36,955 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 50 transitions, 199 flow [2022-12-06 07:34:36,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 50 transitions, 199 flow [2022-12-06 07:34:36,963 INFO L130 PetriNetUnfolder]: 22/95 cut-off events. [2022-12-06 07:34:36,963 INFO L131 PetriNetUnfolder]: For 17/18 co-relation queries the response was YES. [2022-12-06 07:34:36,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 95 events. 22/95 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 231 event pairs, 1 based on Foata normal form. 1/78 useless extension candidates. Maximal degree in co-relation 136. Up to 10 conditions per place. [2022-12-06 07:34:36,964 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 50 transitions, 199 flow [2022-12-06 07:34:36,964 INFO L188 LiptonReduction]: Number of co-enabled transitions 686 [2022-12-06 07:34:36,968 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:36,968 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:36,970 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:36,970 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:34:37,236 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 07:34:37,241 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 286 [2022-12-06 07:34:37,241 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 195 flow [2022-12-06 07:34:37,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2022-12-06 07:34:37,241 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:34:37,241 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:34:37,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 07:34:37,241 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 07:34:37,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:34:37,241 INFO L85 PathProgramCache]: Analyzing trace with hash -257706876, now seen corresponding path program 1 times [2022-12-06 07:34:37,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:34:37,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751464993] [2022-12-06 07:34:37,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:34:37,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:34:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:34:37,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 07:34:37,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:34:37,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751464993] [2022-12-06 07:34:37,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751464993] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:34:37,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:34:37,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 07:34:37,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246988300] [2022-12-06 07:34:37,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:34:37,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 07:34:37,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:34:37,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 07:34:37,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 07:34:37,450 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-06 07:34:37,450 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 195 flow. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2022-12-06 07:34:37,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:34:37,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-06 07:34:37,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:34:37,951 INFO L130 PetriNetUnfolder]: 3056/4261 cut-off events. [2022-12-06 07:34:37,951 INFO L131 PetriNetUnfolder]: For 3184/3604 co-relation queries the response was YES. [2022-12-06 07:34:37,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11982 conditions, 4261 events. 3056/4261 cut-off events. For 3184/3604 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 20198 event pairs, 1361 based on Foata normal form. 510/3774 useless extension candidates. Maximal degree in co-relation 11939. Up to 2887 conditions per place. [2022-12-06 07:34:37,962 INFO L137 encePairwiseOnDemand]: 36/40 looper letters, 57 selfloop transitions, 4 changer transitions 39/105 dead transitions. [2022-12-06 07:34:37,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 105 transitions, 603 flow [2022-12-06 07:34:37,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:34:37,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:34:37,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2022-12-06 07:34:37,963 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.485 [2022-12-06 07:34:37,963 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 195 flow. Second operand 5 states and 97 transitions. [2022-12-06 07:34:37,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 105 transitions, 603 flow [2022-12-06 07:34:37,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 105 transitions, 553 flow, removed 22 selfloop flow, removed 5 redundant places. [2022-12-06 07:34:37,969 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 193 flow [2022-12-06 07:34:37,970 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=193, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2022-12-06 07:34:37,970 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2022-12-06 07:34:37,970 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:34:37,970 INFO L89 Accepts]: Start accepts. Operand has 54 places, 51 transitions, 193 flow [2022-12-06 07:34:37,971 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:34:37,971 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:34:37,971 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 51 transitions, 193 flow [2022-12-06 07:34:37,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions, 193 flow [2022-12-06 07:34:37,980 INFO L130 PetriNetUnfolder]: 21/95 cut-off events. [2022-12-06 07:34:37,980 INFO L131 PetriNetUnfolder]: For 16/17 co-relation queries the response was YES. [2022-12-06 07:34:37,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 95 events. 21/95 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 236 event pairs, 1 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 138. Up to 10 conditions per place. [2022-12-06 07:34:37,981 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 51 transitions, 193 flow [2022-12-06 07:34:37,981 INFO L188 LiptonReduction]: Number of co-enabled transitions 774 [2022-12-06 07:34:38,447 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 07:34:38,447 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 477 [2022-12-06 07:34:38,447 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 189 flow [2022-12-06 07:34:38,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2022-12-06 07:34:38,448 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:34:38,448 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:34:38,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 07:34:38,448 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 07:34:38,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:34:38,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1893454482, now seen corresponding path program 1 times [2022-12-06 07:34:38,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:34:38,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789330471] [2022-12-06 07:34:38,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:34:38,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:34:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:34:40,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:34:40,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:34:40,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789330471] [2022-12-06 07:34:40,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789330471] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:34:40,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365068268] [2022-12-06 07:34:40,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:34:40,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:34:40,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:34:40,420 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:34:40,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 07:34:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:34:40,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 89 conjunts are in the unsatisfiable core [2022-12-06 07:34:40,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:34:40,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 07:34:40,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-06 07:34:40,754 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 07:34:40,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-06 07:34:40,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 07:34:40,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-06 07:34:40,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-06 07:34:40,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 07:34:40,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2022-12-06 07:34:40,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 07:34:40,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 07:34:41,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 07:34:41,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2022-12-06 07:34:41,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 07:34:41,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2022-12-06 07:34:41,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 07:34:41,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 07:34:41,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 34 [2022-12-06 07:34:41,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 07:34:41,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 32 [2022-12-06 07:34:41,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 07:34:42,480 INFO L321 Elim1Store]: treesize reduction 161, result has 29.7 percent of original size [2022-12-06 07:34:42,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 150 [2022-12-06 07:34:42,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 07:34:42,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 113 [2022-12-06 07:34:42,503 INFO L321 Elim1Store]: treesize reduction 30, result has 18.9 percent of original size [2022-12-06 07:34:42,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 125 treesize of output 91 [2022-12-06 07:34:42,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:34:42,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:34:52,066 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((|thread1Thread1of1ForFork2_~i~0#1| Int) (v_ArrVal_481 (Array Int Int)) (v_ArrVal_480 (Array Int Int)) (v_ArrVal_483 (Array Int Int)) (v_ArrVal_482 (Array Int Int)) (v_ArrVal_485 (Array Int Int)) (~B~0.base Int) (v_ArrVal_484 (Array Int Int)) (v_ArrVal_487 (Array Int Int)) (v_ArrVal_486 (Array Int Int)) (~A~0.offset Int) (v_ArrVal_479 (Array Int Int)) (|thread3Thread1of1ForFork1_~i~2#1| Int) (~B~0.offset Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_479))) (let ((.cse11 (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_482))) (let ((.cse5 (store .cse11 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_487))) (let ((.cse9 (select .cse5 c_~A~0.base)) (.cse14 (* 4 |thread3Thread1of1ForFork1_~i~2#1|)) (.cse13 (select .cse5 ~B~0.base)) (.cse12 (* |thread1Thread1of1ForFork2_~i~0#1| 4))) (let ((.cse2 (select .cse13 (+ .cse12 ~B~0.offset))) (.cse3 (select .cse9 (+ ~A~0.offset .cse14))) (.cse4 (select .cse13 (+ ~B~0.offset .cse14))) (.cse1 (+ .cse12 ~A~0.offset))) (or (< (select (select .cse0 c_~A~0.base) .cse1) 0) (not (< .cse2 c_~maxB~0)) (not (<= 0 .cse3)) (not (<= 0 .cse2)) (not (<= 0 .cse4)) (let ((.cse6 (select (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_481) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_484) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_485) c_~mult~0.base)) (.cse8 (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_480) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_483) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_486) c_~mult~0.base))) (< (+ (let ((.cse7 (+ c_~mult~0.offset (* (select .cse9 .cse1) 4)))) (select (select .cse5 (select .cse6 .cse7)) (+ (select .cse8 .cse7) (* 4 .cse2)))) c_~res1~0) (+ c_~res2~0 1 (let ((.cse10 (+ (* 4 .cse3) c_~mult~0.offset))) (select (select .cse5 (select .cse6 .cse10)) (+ (* .cse4 4) (select .cse8 .cse10))))))) (< |c_ULTIMATE.start_main_~i~3#1| (+ .cse3 1)) (not (< .cse4 c_~maxB~0)) (< |c_ULTIMATE.start_main_~i~3#1| (+ (select (select .cse11 c_~A~0.base) .cse1) 1))))))))) (forall ((|thread1Thread1of1ForFork2_~i~0#1| Int) (v_ArrVal_481 (Array Int Int)) (v_ArrVal_480 (Array Int Int)) (v_ArrVal_483 (Array Int Int)) (v_ArrVal_482 (Array Int Int)) (v_ArrVal_485 (Array Int Int)) (~B~0.base Int) (v_ArrVal_484 (Array Int Int)) (v_ArrVal_487 (Array Int Int)) (v_ArrVal_486 (Array Int Int)) (~A~0.offset Int) (v_ArrVal_479 (Array Int Int)) (|thread3Thread1of1ForFork1_~i~2#1| Int) (~B~0.offset Int)) (let ((.cse15 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_479))) (let ((.cse26 (store .cse15 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_482))) (let ((.cse19 (store .cse26 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_487))) (let ((.cse25 (select .cse19 c_~A~0.base)) (.cse29 (* 4 |thread3Thread1of1ForFork1_~i~2#1|)) (.cse28 (select .cse19 ~B~0.base)) (.cse27 (* |thread1Thread1of1ForFork2_~i~0#1| 4))) (let ((.cse17 (select .cse28 (+ .cse27 ~B~0.offset))) (.cse18 (select .cse25 (+ ~A~0.offset .cse29))) (.cse22 (select .cse28 (+ ~B~0.offset .cse29))) (.cse16 (+ .cse27 ~A~0.offset))) (or (< (select (select .cse15 c_~A~0.base) .cse16) 0) (not (< .cse17 c_~maxB~0)) (not (<= 0 .cse18)) (let ((.cse20 (select (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_481) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_484) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_485) c_~mult~0.base)) (.cse23 (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_480) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_483) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_486) c_~mult~0.base))) (<= (+ c_~res2~0 (let ((.cse21 (+ (* 4 .cse18) c_~mult~0.offset))) (select (select .cse19 (select .cse20 .cse21)) (+ (* .cse22 4) (select .cse23 .cse21))))) (+ (let ((.cse24 (+ c_~mult~0.offset (* (select .cse25 .cse16) 4)))) (select (select .cse19 (select .cse20 .cse24)) (+ (select .cse23 .cse24) (* 4 .cse17)))) c_~res1~0))) (not (<= 0 .cse17)) (not (<= 0 .cse22)) (< |c_ULTIMATE.start_main_~i~3#1| (+ .cse18 1)) (not (< .cse22 c_~maxB~0)) (< |c_ULTIMATE.start_main_~i~3#1| (+ (select (select .cse26 c_~A~0.base) .cse16) 1)))))))))) is different from false [2022-12-06 07:34:52,110 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:52,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 938 treesize of output 903 [2022-12-06 07:34:52,124 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:52,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 890 treesize of output 855 [2022-12-06 07:34:52,214 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:52,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 5734 treesize of output 5998 [2022-12-06 07:34:52,388 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:52,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 300394 treesize of output 290074 [2022-12-06 07:34:52,795 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:52,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 289629 treesize of output 283026 [2022-12-06 07:34:53,042 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:53,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 282973 treesize of output 256402 [2022-12-06 07:34:53,302 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:53,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 256349 treesize of output 243090 [2022-12-06 07:34:53,559 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:53,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 243037 treesize of output 229778 [2022-12-06 07:34:53,695 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2022-12-06 07:34:53,807 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:53,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 229725 treesize of output 203154 [2022-12-06 07:34:54,078 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:54,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 203101 treesize of output 196498 [2022-12-06 07:34:54,384 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:54,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 196445 treesize of output 193170 [2022-12-06 07:34:54,689 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:54,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193117 treesize of output 179858 [2022-12-06 07:34:54,984 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:54,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 179805 treesize of output 173202 [2022-12-06 07:34:55,284 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:55,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173149 treesize of output 159890 [2022-12-06 07:34:55,608 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:55,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 159837 treesize of output 153234 [2022-12-06 07:34:55,913 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:34:55,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 153181 treesize of output 149906 Received shutdown request... [2022-12-06 07:48:21,357 WARN L249 SmtUtils]: Removed 2 from assertion stack [2022-12-06 07:48:21,358 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 07:48:21,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-06 07:48:21,365 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 07:48:21,374 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 07:48:21,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-06 07:48:21,565 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 23 for 11ms.. [2022-12-06 07:48:21,567 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 07:48:21,567 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 07:48:21,567 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 07:48:21,567 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:48:21,569 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 07:48:21,569 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 07:48:21,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 07:48:21 BasicIcfg [2022-12-06 07:48:21,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 07:48:21,571 INFO L158 Benchmark]: Toolchain (without parser) took 842045.49ms. Allocated memory was 195.0MB in the beginning and 921.7MB in the end (delta: 726.7MB). Free memory was 170.9MB in the beginning and 518.3MB in the end (delta: -347.4MB). Peak memory consumption was 575.2MB. Max. memory is 8.0GB. [2022-12-06 07:48:21,571 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 171.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 07:48:21,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.41ms. Allocated memory is still 195.0MB. Free memory was 170.9MB in the beginning and 157.2MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 07:48:21,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.54ms. Allocated memory is still 195.0MB. Free memory was 157.2MB in the beginning and 154.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 07:48:21,572 INFO L158 Benchmark]: Boogie Preprocessor took 45.32ms. Allocated memory is still 195.0MB. Free memory was 154.0MB in the beginning and 151.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 07:48:21,572 INFO L158 Benchmark]: RCFGBuilder took 635.40ms. Allocated memory is still 195.0MB. Free memory was 151.4MB in the beginning and 101.6MB in the end (delta: 49.8MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. [2022-12-06 07:48:21,572 INFO L158 Benchmark]: TraceAbstraction took 841076.37ms. Allocated memory was 195.0MB in the beginning and 921.7MB in the end (delta: 726.7MB). Free memory was 101.1MB in the beginning and 518.3MB in the end (delta: -417.3MB). Peak memory consumption was 504.9MB. Max. memory is 8.0GB. [2022-12-06 07:48:21,573 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 195.0MB. Free memory is still 171.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 224.41ms. Allocated memory is still 195.0MB. Free memory was 170.9MB in the beginning and 157.2MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.54ms. Allocated memory is still 195.0MB. Free memory was 157.2MB in the beginning and 154.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.32ms. Allocated memory is still 195.0MB. Free memory was 154.0MB in the beginning and 151.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 635.40ms. Allocated memory is still 195.0MB. Free memory was 151.4MB in the beginning and 101.6MB in the end (delta: 49.8MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. * TraceAbstraction took 841076.37ms. Allocated memory was 195.0MB in the beginning and 921.7MB in the end (delta: 726.7MB). Free memory was 101.1MB in the beginning and 518.3MB in the end (delta: -417.3MB). Peak memory consumption was 504.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.6s, 285 PlacesBefore, 41 PlacesAfterwards, 310 TransitionsBefore, 40 TransitionsAfterwards, 11934 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 147 TrivialYvCompositions, 97 ConcurrentYvCompositions, 26 ChoiceCompositions, 271 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 7837, independent unconditional: 0, dependent: 64, dependent conditional: 64, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 0, independent unconditional: 7837, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 0, independent unconditional: 7837, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 0, independent unconditional: 7837, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7168, independent: 7128, independent conditional: 0, independent unconditional: 7128, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7168, independent: 7127, independent conditional: 0, independent unconditional: 7127, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 101, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7901, independent: 709, independent conditional: 0, independent unconditional: 709, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 7168, unknown conditional: 0, unknown unconditional: 7168] , Statistics on independence cache: Total cache size (in pairs): 13302, Positive cache size: 13262, Positive conditional cache size: 0, Positive unconditional cache size: 13262, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, 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, 40 PlacesBefore, 40 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 414 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 150, independent: 130, independent conditional: 130, independent unconditional: 0, dependent: 20, dependent conditional: 20, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 150, independent: 130, independent conditional: 0, independent unconditional: 130, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 150, independent: 130, independent conditional: 0, independent unconditional: 130, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 150, independent: 130, independent conditional: 0, independent unconditional: 130, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 128, independent: 110, independent conditional: 0, independent unconditional: 110, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 128, independent: 110, independent conditional: 0, independent unconditional: 110, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 42, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 150, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 128, unknown conditional: 0, unknown unconditional: 128] , Statistics on independence cache: Total cache size (in pairs): 128, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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: 1.9s, 43 PlacesBefore, 41 PlacesAfterwards, 44 TransitionsBefore, 42 TransitionsAfterwards, 478 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 450, independent: 398, independent conditional: 398, independent unconditional: 0, dependent: 52, dependent conditional: 52, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 450, independent: 398, independent conditional: 114, independent unconditional: 284, dependent: 52, dependent conditional: 12, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 450, independent: 398, independent conditional: 96, independent unconditional: 302, dependent: 52, dependent conditional: 12, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 450, independent: 398, independent conditional: 96, independent unconditional: 302, dependent: 52, dependent conditional: 12, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23, independent: 20, independent conditional: 3, independent unconditional: 17, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 23, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 450, independent: 378, independent conditional: 93, independent unconditional: 285, dependent: 49, dependent conditional: 9, dependent unconditional: 40, unknown: 23, unknown conditional: 6, unknown unconditional: 17] , Statistics on independence cache: Total cache size (in pairs): 151, Positive cache size: 130, Positive conditional cache size: 3, Positive unconditional cache size: 127, Negative cache size: 21, Negative conditional cache size: 3, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 18, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 47 PlacesBefore, 47 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 686 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 248, independent: 226, independent conditional: 226, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 248, independent: 226, independent conditional: 96, independent unconditional: 130, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 248, independent: 226, independent conditional: 86, independent unconditional: 140, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 248, independent: 226, independent conditional: 86, independent unconditional: 140, dependent: 22, dependent conditional: 2, dependent unconditional: 20, 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: 248, independent: 226, independent conditional: 86, independent unconditional: 140, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 151, Positive cache size: 130, Positive conditional cache size: 3, Positive unconditional cache size: 127, Negative cache size: 21, Negative conditional cache size: 3, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 10, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 50 PlacesBefore, 50 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 686 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 260, independent: 238, independent conditional: 238, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 260, independent: 238, independent conditional: 108, independent unconditional: 130, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 260, independent: 238, independent conditional: 90, independent unconditional: 148, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 260, independent: 238, independent conditional: 90, independent unconditional: 148, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 4, independent unconditional: 5, 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: 9, independent: 9, independent conditional: 0, independent unconditional: 9, 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: 260, independent: 229, independent conditional: 86, independent unconditional: 143, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 9, unknown conditional: 4, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 160, Positive cache size: 139, Positive conditional cache size: 7, Positive unconditional cache size: 132, Negative cache size: 21, Negative conditional cache size: 3, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 18, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 53 PlacesBefore, 52 PlacesAfterwards, 50 TransitionsBefore, 49 TransitionsAfterwards, 686 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 540, independent: 496, independent conditional: 496, independent unconditional: 0, dependent: 44, dependent conditional: 44, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 540, independent: 496, independent conditional: 236, independent unconditional: 260, dependent: 44, dependent conditional: 4, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 540, independent: 496, independent conditional: 200, independent unconditional: 296, dependent: 44, dependent conditional: 4, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 540, independent: 496, independent conditional: 200, independent unconditional: 296, dependent: 44, dependent conditional: 4, dependent unconditional: 40, 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: 540, independent: 496, independent conditional: 200, independent unconditional: 296, dependent: 44, dependent conditional: 4, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 160, Positive cache size: 139, Positive conditional cache size: 7, Positive unconditional cache size: 132, Negative cache size: 21, Negative conditional cache size: 3, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5s, 54 PlacesBefore, 52 PlacesAfterwards, 51 TransitionsBefore, 49 TransitionsAfterwards, 774 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 578, independent: 534, independent conditional: 534, independent unconditional: 0, dependent: 44, dependent conditional: 44, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 578, independent: 534, independent conditional: 289, independent unconditional: 245, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 578, independent: 534, independent conditional: 253, independent unconditional: 281, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 578, independent: 534, independent conditional: 253, independent unconditional: 281, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 30, independent: 28, independent conditional: 20, independent unconditional: 8, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 30, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 4, independent conditional: 4, independent unconditional: 0, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, independent: 10, independent conditional: 10, independent unconditional: 0, dependent: 3, dependent conditional: 2, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 578, independent: 506, independent conditional: 233, independent unconditional: 273, dependent: 42, dependent conditional: 4, dependent unconditional: 38, unknown: 30, unknown conditional: 21, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 187, Positive conditional cache size: 27, Positive unconditional cache size: 160, Negative cache size: 23, Negative conditional cache size: 4, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36, Maximal queried relation: 0 - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 23 for 11ms.. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 23 for 11ms.. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 23 for 11ms.. - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 23 for 11ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 394 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: 841.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 344 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 344 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 866 IncrementalHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 3 mSDtfsCounter, 866 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=5, InterpolantAutomatonStates: 32, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 401 SizeOfPredicates, 4 NumberOfNonLiveVariables, 328 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 13/15 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown