/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 22:57:02,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 22:57:02,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 22:57:02,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 22:57:02,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 22:57:02,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 22:57:02,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 22:57:02,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 22:57:03,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 22:57:03,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 22:57:03,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 22:57:03,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 22:57:03,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 22:57:03,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 22:57:03,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 22:57:03,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 22:57:03,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 22:57:03,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 22:57:03,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 22:57:03,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 22:57:03,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 22:57:03,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 22:57:03,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 22:57:03,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 22:57:03,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 22:57:03,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 22:57:03,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 22:57:03,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 22:57:03,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 22:57:03,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 22:57:03,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 22:57:03,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 22:57:03,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 22:57:03,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 22:57:03,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 22:57:03,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 22:57:03,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 22:57:03,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 22:57:03,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 22:57:03,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 22:57:03,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 22:57:03,035 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-VariableLbe.epf [2023-01-27 22:57:03,047 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 22:57:03,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 22:57:03,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 22:57:03,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 22:57:03,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 22:57:03,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 22:57:03,048 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 22:57:03,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 22:57:03,048 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 22:57:03,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 22:57:03,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 22:57:03,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 22:57:03,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 22:57:03,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 22:57:03,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 22:57:03,049 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 22:57:03,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 22:57:03,049 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 22:57:03,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 22:57:03,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 22:57:03,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 22:57:03,049 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 22:57:03,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 22:57:03,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 22:57:03,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 22:57:03,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 22:57:03,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 22:57:03,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 22:57:03,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 22:57:03,050 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 22:57:03,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 22:57:03,050 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 22:57:03,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 22:57:03,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 22:57:03,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 22:57:03,257 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 22:57:03,258 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 22:57:03,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2023-01-27 22:57:04,201 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 22:57:04,352 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 22:57:04,352 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2023-01-27 22:57:04,356 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe0789541/df200036eaf245fbbf511aaffb6b19db/FLAG9ee8b2057 [2023-01-27 22:57:04,365 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe0789541/df200036eaf245fbbf511aaffb6b19db [2023-01-27 22:57:04,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 22:57:04,368 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 22:57:04,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 22:57:04,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 22:57:04,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 22:57:04,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 10:57:04" (1/1) ... [2023-01-27 22:57:04,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d6bd9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:57:04, skipping insertion in model container [2023-01-27 22:57:04,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 10:57:04" (1/1) ... [2023-01-27 22:57:04,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 22:57:04,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 22:57:04,490 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2691,2704] [2023-01-27 22:57:04,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 22:57:04,503 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 22:57:04,517 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2691,2704] [2023-01-27 22:57:04,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 22:57:04,524 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 22:57:04,524 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 22:57:04,528 INFO L208 MainTranslator]: Completed translation [2023-01-27 22:57:04,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:57:04 WrapperNode [2023-01-27 22:57:04,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 22:57:04,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 22:57:04,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 22:57:04,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 22:57:04,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:57:04" (1/1) ... [2023-01-27 22:57:04,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:57:04" (1/1) ... [2023-01-27 22:57:04,565 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 154 [2023-01-27 22:57:04,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 22:57:04,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 22:57:04,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 22:57:04,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 22:57:04,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:57:04" (1/1) ... [2023-01-27 22:57:04,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:57:04" (1/1) ... [2023-01-27 22:57:04,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:57:04" (1/1) ... [2023-01-27 22:57:04,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:57:04" (1/1) ... [2023-01-27 22:57:04,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:57:04" (1/1) ... [2023-01-27 22:57:04,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:57:04" (1/1) ... [2023-01-27 22:57:04,592 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:57:04" (1/1) ... [2023-01-27 22:57:04,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:57:04" (1/1) ... [2023-01-27 22:57:04,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 22:57:04,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 22:57:04,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 22:57:04,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 22:57:04,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:57:04" (1/1) ... [2023-01-27 22:57:04,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 22:57:04,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:57:04,628 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) [2023-01-27 22:57:04,633 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 [2023-01-27 22:57:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 22:57:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 22:57:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 22:57:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 22:57:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-27 22:57:04,657 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-27 22:57:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-27 22:57:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-27 22:57:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-27 22:57:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-27 22:57:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 22:57:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 22:57:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 22:57:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 22:57:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 22:57:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 22:57:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 22:57:04,660 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 22:57:04,747 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 22:57:04,748 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 22:57:05,020 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 22:57:05,050 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 22:57:05,050 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-01-27 22:57:05,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 10:57:05 BoogieIcfgContainer [2023-01-27 22:57:05,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 22:57:05,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 22:57:05,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 22:57:05,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 22:57:05,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 10:57:04" (1/3) ... [2023-01-27 22:57:05,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2351236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 10:57:05, skipping insertion in model container [2023-01-27 22:57:05,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:57:04" (2/3) ... [2023-01-27 22:57:05,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2351236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 10:57:05, skipping insertion in model container [2023-01-27 22:57:05,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 10:57:05" (3/3) ... [2023-01-27 22:57:05,062 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2023-01-27 22:57:05,073 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 22:57:05,073 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 22:57:05,073 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 22:57:05,131 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-27 22:57:05,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 212 transitions, 448 flow [2023-01-27 22:57:05,255 INFO L130 PetriNetUnfolder]: 20/209 cut-off events. [2023-01-27 22:57:05,255 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 22:57:05,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 209 events. 20/209 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 152 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 170. Up to 3 conditions per place. [2023-01-27 22:57:05,271 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 212 transitions, 448 flow [2023-01-27 22:57:05,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 189 places, 199 transitions, 416 flow [2023-01-27 22:57:05,278 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 22:57:05,284 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 189 places, 199 transitions, 416 flow [2023-01-27 22:57:05,286 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 189 places, 199 transitions, 416 flow [2023-01-27 22:57:05,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 189 places, 199 transitions, 416 flow [2023-01-27 22:57:05,311 INFO L130 PetriNetUnfolder]: 20/199 cut-off events. [2023-01-27 22:57:05,311 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 22:57:05,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 199 events. 20/199 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 156 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 170. Up to 3 conditions per place. [2023-01-27 22:57:05,313 INFO L119 LiptonReduction]: Number of co-enabled transitions 1874 [2023-01-27 22:57:09,819 INFO L134 LiptonReduction]: Checked pairs total: 2518 [2023-01-27 22:57:09,819 INFO L136 LiptonReduction]: Total number of compositions: 204 [2023-01-27 22:57:09,832 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 22:57:09,835 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2796274a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 22:57:09,836 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-27 22:57:09,840 INFO L130 PetriNetUnfolder]: 7/30 cut-off events. [2023-01-27 22:57:09,840 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 22:57:09,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:57:09,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:57:09,842 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)] === [2023-01-27 22:57:09,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:57:09,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1140031693, now seen corresponding path program 1 times [2023-01-27 22:57:09,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:57:09,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605916687] [2023-01-27 22:57:09,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:57:09,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:57:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:57:10,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:57:10,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:57:10,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605916687] [2023-01-27 22:57:10,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605916687] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:57:10,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:57:10,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 22:57:10,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185674196] [2023-01-27 22:57:10,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:57:10,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 22:57:10,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:57:10,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 22:57:10,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 22:57:10,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 416 [2023-01-27 22:57:10,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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) [2023-01-27 22:57:10,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:57:10,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 416 [2023-01-27 22:57:10,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:57:10,740 INFO L130 PetriNetUnfolder]: 727/977 cut-off events. [2023-01-27 22:57:10,740 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2023-01-27 22:57:10,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2026 conditions, 977 events. 727/977 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3462 event pairs, 114 based on Foata normal form. 1/568 useless extension candidates. Maximal degree in co-relation 1483. Up to 666 conditions per place. [2023-01-27 22:57:10,748 INFO L137 encePairwiseOnDemand]: 412/416 looper letters, 42 selfloop transitions, 3 changer transitions 1/49 dead transitions. [2023-01-27 22:57:10,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 49 transitions, 223 flow [2023-01-27 22:57:10,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 22:57:10,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 22:57:10,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 599 transitions. [2023-01-27 22:57:10,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47996794871794873 [2023-01-27 22:57:10,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 599 transitions. [2023-01-27 22:57:10,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 599 transitions. [2023-01-27 22:57:10,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:57:10,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 599 transitions. [2023-01-27 22:57:10,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 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) [2023-01-27 22:57:10,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 416.0) internal successors, (1664), 4 states have internal predecessors, (1664), 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) [2023-01-27 22:57:10,783 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 416.0) internal successors, (1664), 4 states have internal predecessors, (1664), 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) [2023-01-27 22:57:10,784 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 80 flow. Second operand 3 states and 599 transitions. [2023-01-27 22:57:10,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 49 transitions, 223 flow [2023-01-27 22:57:10,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 49 transitions, 201 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-01-27 22:57:10,792 INFO L231 Difference]: Finished difference. Result has 31 places, 33 transitions, 87 flow [2023-01-27 22:57:10,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=416, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=31, PETRI_TRANSITIONS=33} [2023-01-27 22:57:10,796 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2023-01-27 22:57:10,796 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 33 transitions, 87 flow [2023-01-27 22:57:10,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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) [2023-01-27 22:57:10,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:57:10,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:57:10,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 22:57:10,797 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)] === [2023-01-27 22:57:10,798 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:57:10,798 INFO L85 PathProgramCache]: Analyzing trace with hash -422331535, now seen corresponding path program 1 times [2023-01-27 22:57:10,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:57:10,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985426182] [2023-01-27 22:57:10,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:57:10,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:57:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:57:10,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:57:10,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:57:10,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985426182] [2023-01-27 22:57:10,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985426182] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:57:10,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:57:10,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 22:57:10,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280539390] [2023-01-27 22:57:10,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:57:10,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 22:57:10,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:57:10,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 22:57:10,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 22:57:10,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 416 [2023-01-27 22:57:10,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 33 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 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) [2023-01-27 22:57:10,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:57:10,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 416 [2023-01-27 22:57:10,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:57:11,152 INFO L130 PetriNetUnfolder]: 1303/1799 cut-off events. [2023-01-27 22:57:11,153 INFO L131 PetriNetUnfolder]: For 160/160 co-relation queries the response was YES. [2023-01-27 22:57:11,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3866 conditions, 1799 events. 1303/1799 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 7215 event pairs, 578 based on Foata normal form. 50/1233 useless extension candidates. Maximal degree in co-relation 1767. Up to 1008 conditions per place. [2023-01-27 22:57:11,160 INFO L137 encePairwiseOnDemand]: 407/416 looper letters, 64 selfloop transitions, 10 changer transitions 0/76 dead transitions. [2023-01-27 22:57:11,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 76 transitions, 341 flow [2023-01-27 22:57:11,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 22:57:11,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 22:57:11,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 776 transitions. [2023-01-27 22:57:11,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3730769230769231 [2023-01-27 22:57:11,162 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 776 transitions. [2023-01-27 22:57:11,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 776 transitions. [2023-01-27 22:57:11,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:57:11,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 776 transitions. [2023-01-27 22:57:11,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 155.2) internal successors, (776), 5 states have internal predecessors, (776), 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) [2023-01-27 22:57:11,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 416.0) internal successors, (2496), 6 states have internal predecessors, (2496), 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) [2023-01-27 22:57:11,167 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 416.0) internal successors, (2496), 6 states have internal predecessors, (2496), 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) [2023-01-27 22:57:11,167 INFO L175 Difference]: Start difference. First operand has 31 places, 33 transitions, 87 flow. Second operand 5 states and 776 transitions. [2023-01-27 22:57:11,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 76 transitions, 341 flow [2023-01-27 22:57:11,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 76 transitions, 336 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 22:57:11,170 INFO L231 Difference]: Finished difference. Result has 37 places, 41 transitions, 150 flow [2023-01-27 22:57:11,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=416, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=150, PETRI_PLACES=37, PETRI_TRANSITIONS=41} [2023-01-27 22:57:11,178 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-01-27 22:57:11,178 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 41 transitions, 150 flow [2023-01-27 22:57:11,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 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) [2023-01-27 22:57:11,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:57:11,179 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:57:11,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 22:57:11,179 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)] === [2023-01-27 22:57:11,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:57:11,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1087856233, now seen corresponding path program 1 times [2023-01-27 22:57:11,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:57:11,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154220817] [2023-01-27 22:57:11,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:57:11,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:57:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:57:11,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:57:11,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:57:11,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154220817] [2023-01-27 22:57:11,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154220817] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:57:11,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:57:11,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 22:57:11,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588955460] [2023-01-27 22:57:11,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:57:11,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 22:57:11,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:57:11,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 22:57:11,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 22:57:11,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 416 [2023-01-27 22:57:11,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 41 transitions, 150 flow. Second operand has 5 states, 5 states have (on average 146.4) internal successors, (732), 5 states have internal predecessors, (732), 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) [2023-01-27 22:57:11,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:57:11,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 416 [2023-01-27 22:57:11,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:57:11,412 INFO L130 PetriNetUnfolder]: 800/1134 cut-off events. [2023-01-27 22:57:11,413 INFO L131 PetriNetUnfolder]: For 285/308 co-relation queries the response was YES. [2023-01-27 22:57:11,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2540 conditions, 1134 events. 800/1134 cut-off events. For 285/308 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4438 event pairs, 380 based on Foata normal form. 23/865 useless extension candidates. Maximal degree in co-relation 2053. Up to 911 conditions per place. [2023-01-27 22:57:11,417 INFO L137 encePairwiseOnDemand]: 406/416 looper letters, 28 selfloop transitions, 6 changer transitions 32/68 dead transitions. [2023-01-27 22:57:11,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 68 transitions, 348 flow [2023-01-27 22:57:11,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 22:57:11,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 22:57:11,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 775 transitions. [2023-01-27 22:57:11,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37259615384615385 [2023-01-27 22:57:11,419 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 775 transitions. [2023-01-27 22:57:11,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 775 transitions. [2023-01-27 22:57:11,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:57:11,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 775 transitions. [2023-01-27 22:57:11,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 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) [2023-01-27 22:57:11,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 416.0) internal successors, (2496), 6 states have internal predecessors, (2496), 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) [2023-01-27 22:57:11,423 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 416.0) internal successors, (2496), 6 states have internal predecessors, (2496), 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) [2023-01-27 22:57:11,424 INFO L175 Difference]: Start difference. First operand has 37 places, 41 transitions, 150 flow. Second operand 5 states and 775 transitions. [2023-01-27 22:57:11,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 68 transitions, 348 flow [2023-01-27 22:57:11,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 68 transitions, 346 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-01-27 22:57:11,425 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 138 flow [2023-01-27 22:57:11,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=416, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=138, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2023-01-27 22:57:11,426 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2023-01-27 22:57:11,426 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 138 flow [2023-01-27 22:57:11,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 146.4) internal successors, (732), 5 states have internal predecessors, (732), 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) [2023-01-27 22:57:11,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:57:11,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:57:11,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 22:57:11,427 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)] === [2023-01-27 22:57:11,427 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:57:11,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1040220969, now seen corresponding path program 1 times [2023-01-27 22:57:11,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:57:11,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992942847] [2023-01-27 22:57:11,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:57:11,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:57:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:57:11,496 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 22:57:11,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:57:11,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992942847] [2023-01-27 22:57:11,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992942847] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:57:11,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010630591] [2023-01-27 22:57:11,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:57:11,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:57:11,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:57:11,499 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) [2023-01-27 22:57:11,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-27 22:57:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:57:11,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 6 conjunts are in the unsatisfiable core [2023-01-27 22:57:11,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:57:11,651 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 22:57:11,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:57:11,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 22:57:11,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010630591] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-27 22:57:11,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-27 22:57:11,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2023-01-27 22:57:11,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664105506] [2023-01-27 22:57:11,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:57:11,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 22:57:11,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:57:11,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 22:57:11,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-01-27 22:57:11,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 416 [2023-01-27 22:57:11,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 138 flow. Second operand has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 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) [2023-01-27 22:57:11,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:57:11,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 416 [2023-01-27 22:57:11,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:57:11,790 INFO L130 PetriNetUnfolder]: 855/1180 cut-off events. [2023-01-27 22:57:11,790 INFO L131 PetriNetUnfolder]: For 325/325 co-relation queries the response was YES. [2023-01-27 22:57:11,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2865 conditions, 1180 events. 855/1180 cut-off events. For 325/325 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4450 event pairs, 332 based on Foata normal form. 0/962 useless extension candidates. Maximal degree in co-relation 2821. Up to 884 conditions per place. [2023-01-27 22:57:11,796 INFO L137 encePairwiseOnDemand]: 411/416 looper letters, 45 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2023-01-27 22:57:11,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 282 flow [2023-01-27 22:57:11,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 22:57:11,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 22:57:11,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 759 transitions. [2023-01-27 22:57:11,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36490384615384613 [2023-01-27 22:57:11,797 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 759 transitions. [2023-01-27 22:57:11,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 759 transitions. [2023-01-27 22:57:11,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:57:11,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 759 transitions. [2023-01-27 22:57:11,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 151.8) internal successors, (759), 5 states have internal predecessors, (759), 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) [2023-01-27 22:57:11,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 416.0) internal successors, (2496), 6 states have internal predecessors, (2496), 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) [2023-01-27 22:57:11,802 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 416.0) internal successors, (2496), 6 states have internal predecessors, (2496), 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) [2023-01-27 22:57:11,802 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 138 flow. Second operand 5 states and 759 transitions. [2023-01-27 22:57:11,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 282 flow [2023-01-27 22:57:11,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 51 transitions, 248 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-01-27 22:57:11,804 INFO L231 Difference]: Finished difference. Result has 37 places, 37 transitions, 126 flow [2023-01-27 22:57:11,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=416, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=37, PETRI_TRANSITIONS=37} [2023-01-27 22:57:11,805 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-01-27 22:57:11,805 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 37 transitions, 126 flow [2023-01-27 22:57:11,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 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) [2023-01-27 22:57:11,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:57:11,806 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:57:11,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-27 22:57:12,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:57:12,011 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)] === [2023-01-27 22:57:12,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:57:12,012 INFO L85 PathProgramCache]: Analyzing trace with hash -340615580, now seen corresponding path program 1 times [2023-01-27 22:57:12,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:57:12,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314224599] [2023-01-27 22:57:12,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:57:12,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:57:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:57:12,089 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-27 22:57:12,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:57:12,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314224599] [2023-01-27 22:57:12,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314224599] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:57:12,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308094687] [2023-01-27 22:57:12,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:57:12,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:57:12,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:57:12,091 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) [2023-01-27 22:57:12,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-27 22:57:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:57:12,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 6 conjunts are in the unsatisfiable core [2023-01-27 22:57:12,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:57:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-27 22:57:12,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:57:12,265 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-27 22:57:12,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308094687] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-27 22:57:12,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-27 22:57:12,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2023-01-27 22:57:12,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644376291] [2023-01-27 22:57:12,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:57:12,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 22:57:12,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:57:12,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 22:57:12,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-01-27 22:57:12,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 416 [2023-01-27 22:57:12,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 37 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-01-27 22:57:12,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:57:12,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 416 [2023-01-27 22:57:12,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:57:12,387 INFO L130 PetriNetUnfolder]: 669/936 cut-off events. [2023-01-27 22:57:12,388 INFO L131 PetriNetUnfolder]: For 241/314 co-relation queries the response was YES. [2023-01-27 22:57:12,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2356 conditions, 936 events. 669/936 cut-off events. For 241/314 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3248 event pairs, 194 based on Foata normal form. 73/812 useless extension candidates. Maximal degree in co-relation 2317. Up to 469 conditions per place. [2023-01-27 22:57:12,391 INFO L137 encePairwiseOnDemand]: 409/416 looper letters, 42 selfloop transitions, 7 changer transitions 0/51 dead transitions. [2023-01-27 22:57:12,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 51 transitions, 265 flow [2023-01-27 22:57:12,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 22:57:12,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 22:57:12,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 753 transitions. [2023-01-27 22:57:12,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36201923076923076 [2023-01-27 22:57:12,393 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 753 transitions. [2023-01-27 22:57:12,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 753 transitions. [2023-01-27 22:57:12,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:57:12,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 753 transitions. [2023-01-27 22:57:12,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 150.6) internal successors, (753), 5 states have internal predecessors, (753), 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) [2023-01-27 22:57:12,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 416.0) internal successors, (2496), 6 states have internal predecessors, (2496), 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) [2023-01-27 22:57:12,397 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 416.0) internal successors, (2496), 6 states have internal predecessors, (2496), 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) [2023-01-27 22:57:12,397 INFO L175 Difference]: Start difference. First operand has 37 places, 37 transitions, 126 flow. Second operand 5 states and 753 transitions. [2023-01-27 22:57:12,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 51 transitions, 265 flow [2023-01-27 22:57:12,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 51 transitions, 252 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-01-27 22:57:12,398 INFO L231 Difference]: Finished difference. Result has 41 places, 39 transitions, 151 flow [2023-01-27 22:57:12,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=416, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=151, PETRI_PLACES=41, PETRI_TRANSITIONS=39} [2023-01-27 22:57:12,400 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 7 predicate places. [2023-01-27 22:57:12,402 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 39 transitions, 151 flow [2023-01-27 22:57:12,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-01-27 22:57:12,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:57:12,402 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:57:12,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-27 22:57:12,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:57:12,607 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)] === [2023-01-27 22:57:12,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:57:12,608 INFO L85 PathProgramCache]: Analyzing trace with hash -155772382, now seen corresponding path program 1 times [2023-01-27 22:57:12,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:57:12,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951472398] [2023-01-27 22:57:12,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:57:12,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:57:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:57:12,720 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-01-27 22:57:12,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:57:12,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951472398] [2023-01-27 22:57:12,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951472398] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:57:12,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010734719] [2023-01-27 22:57:12,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:57:12,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:57:12,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:57:12,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 22:57:12,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-27 22:57:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:57:12,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 6 conjunts are in the unsatisfiable core [2023-01-27 22:57:12,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:57:12,844 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-01-27 22:57:12,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:57:12,867 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-01-27 22:57:12,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010734719] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-27 22:57:12,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-27 22:57:12,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2023-01-27 22:57:12,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410087093] [2023-01-27 22:57:12,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:57:12,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 22:57:12,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:57:12,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 22:57:12,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-01-27 22:57:12,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 416 [2023-01-27 22:57:12,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 151 flow. Second operand has 5 states, 5 states have (on average 146.2) internal successors, (731), 5 states have internal predecessors, (731), 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) [2023-01-27 22:57:12,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:57:12,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 416 [2023-01-27 22:57:12,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:57:12,968 INFO L130 PetriNetUnfolder]: 685/950 cut-off events. [2023-01-27 22:57:12,968 INFO L131 PetriNetUnfolder]: For 498/627 co-relation queries the response was YES. [2023-01-27 22:57:12,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2692 conditions, 950 events. 685/950 cut-off events. For 498/627 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3302 event pairs, 206 based on Foata normal form. 179/924 useless extension candidates. Maximal degree in co-relation 2651. Up to 559 conditions per place. [2023-01-27 22:57:12,972 INFO L137 encePairwiseOnDemand]: 410/416 looper letters, 48 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2023-01-27 22:57:12,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 55 transitions, 323 flow [2023-01-27 22:57:12,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 22:57:12,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 22:57:12,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 748 transitions. [2023-01-27 22:57:12,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3596153846153846 [2023-01-27 22:57:12,974 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 748 transitions. [2023-01-27 22:57:12,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 748 transitions. [2023-01-27 22:57:12,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:57:12,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 748 transitions. [2023-01-27 22:57:12,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 149.6) internal successors, (748), 5 states have internal predecessors, (748), 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) [2023-01-27 22:57:12,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 416.0) internal successors, (2496), 6 states have internal predecessors, (2496), 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) [2023-01-27 22:57:12,978 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 416.0) internal successors, (2496), 6 states have internal predecessors, (2496), 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) [2023-01-27 22:57:12,978 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 151 flow. Second operand 5 states and 748 transitions. [2023-01-27 22:57:12,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 55 transitions, 323 flow [2023-01-27 22:57:12,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 55 transitions, 311 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 22:57:12,980 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 168 flow [2023-01-27 22:57:12,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=416, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=168, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2023-01-27 22:57:12,982 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 10 predicate places. [2023-01-27 22:57:12,982 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 168 flow [2023-01-27 22:57:12,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 146.2) internal successors, (731), 5 states have internal predecessors, (731), 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) [2023-01-27 22:57:12,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:57:12,982 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:57:12,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-01-27 22:57:13,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:57:13,189 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)] === [2023-01-27 22:57:13,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:57:13,190 INFO L85 PathProgramCache]: Analyzing trace with hash -166136936, now seen corresponding path program 1 times [2023-01-27 22:57:13,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:57:13,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775758844] [2023-01-27 22:57:13,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:57:13,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:57:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:57:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-27 22:57:14,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:57:14,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775758844] [2023-01-27 22:57:14,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775758844] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:57:14,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874840003] [2023-01-27 22:57:14,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:57:14,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:57:14,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:57:14,510 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 22:57:14,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-27 22:57:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:57:14,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 58 conjunts are in the unsatisfiable core [2023-01-27 22:57:14,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:57:14,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 22:57:14,685 INFO L321 Elim1Store]: treesize reduction 62, result has 31.1 percent of original size [2023-01-27 22:57:14,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 15 treesize of output 38 [2023-01-27 22:57:14,758 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-01-27 22:57:14,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-01-27 22:57:14,858 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-01-27 22:57:14,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-01-27 22:57:15,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2023-01-27 22:57:15,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 22:57:15,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 22:57:15,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 22:57:15,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-01-27 22:57:15,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 15 [2023-01-27 22:57:15,606 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-27 22:57:15,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:57:15,804 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_332 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_332))) (= (mod (+ (select (select .cse0 c_~C~0.base) c_~C~0.offset) c_~csum~0) 4294967296) (mod (+ (select (select .cse0 c_~A~0.base) c_~A~0.offset) (select (select .cse0 c_~B~0.base) c_~B~0.offset) c_~asum~0 c_~bsum~0) 4294967296)))) is different from false [2023-01-27 22:57:15,861 INFO L321 Elim1Store]: treesize reduction 42, result has 62.5 percent of original size [2023-01-27 22:57:15,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 124 treesize of output 104 [2023-01-27 22:57:16,017 INFO L321 Elim1Store]: treesize reduction 11, result has 93.9 percent of original size [2023-01-27 22:57:16,017 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 6 new quantified variables, introduced 15 case distinctions, treesize of input 321 treesize of output 410 [2023-01-27 22:57:16,042 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:57:16,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 198 treesize of output 198 [2023-01-27 23:00:45,977 WARN L222 SmtUtils]: Spent 20.71s on a formula simplification. DAG size of input: 179 DAG size of output: 31 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 23:00:47,051 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-27 23:00:47,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874840003] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 23:00:47,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 23:00:47,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 35 [2023-01-27 23:00:47,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981930345] [2023-01-27 23:00:47,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 23:00:47,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-01-27 23:00:47,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 23:00:47,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-01-27 23:00:47,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1112, Unknown=2, NotChecked=68, Total=1332 [2023-01-27 23:00:47,056 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 416 [2023-01-27 23:00:47,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 168 flow. Second operand has 37 states, 37 states have (on average 127.16216216216216) internal successors, (4705), 37 states have internal predecessors, (4705), 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) [2023-01-27 23:00:47,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 23:00:47,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 416 [2023-01-27 23:00:47,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 23:00:48,647 INFO L130 PetriNetUnfolder]: 1172/1618 cut-off events. [2023-01-27 23:00:48,647 INFO L131 PetriNetUnfolder]: For 1467/1467 co-relation queries the response was YES. [2023-01-27 23:00:48,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5044 conditions, 1618 events. 1172/1618 cut-off events. For 1467/1467 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5221 event pairs, 179 based on Foata normal form. 1/1322 useless extension candidates. Maximal degree in co-relation 5000. Up to 1095 conditions per place. [2023-01-27 23:00:48,654 INFO L137 encePairwiseOnDemand]: 404/416 looper letters, 92 selfloop transitions, 26 changer transitions 1/119 dead transitions. [2023-01-27 23:00:48,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 119 transitions, 729 flow [2023-01-27 23:00:48,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-01-27 23:00:48,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-01-27 23:00:48,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1734 transitions. [2023-01-27 23:00:48,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3206360946745562 [2023-01-27 23:00:48,658 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1734 transitions. [2023-01-27 23:00:48,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1734 transitions. [2023-01-27 23:00:48,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 23:00:48,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1734 transitions. [2023-01-27 23:00:48,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 133.3846153846154) internal successors, (1734), 13 states have internal predecessors, (1734), 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) [2023-01-27 23:00:48,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 416.0) internal successors, (5824), 14 states have internal predecessors, (5824), 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) [2023-01-27 23:00:48,667 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 416.0) internal successors, (5824), 14 states have internal predecessors, (5824), 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) [2023-01-27 23:00:48,667 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 168 flow. Second operand 13 states and 1734 transitions. [2023-01-27 23:00:48,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 119 transitions, 729 flow [2023-01-27 23:00:48,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 119 transitions, 716 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 23:00:48,670 INFO L231 Difference]: Finished difference. Result has 60 places, 60 transitions, 367 flow [2023-01-27 23:00:48,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=416, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=367, PETRI_PLACES=60, PETRI_TRANSITIONS=60} [2023-01-27 23:00:48,670 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 26 predicate places. [2023-01-27 23:00:48,671 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 60 transitions, 367 flow [2023-01-27 23:00:48,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 127.16216216216216) internal successors, (4705), 37 states have internal predecessors, (4705), 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) [2023-01-27 23:00:48,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:00:48,673 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:00:48,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-27 23:00:48,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 23:00:48,878 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 23:00:48,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:00:48,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2070806332, now seen corresponding path program 2 times [2023-01-27 23:00:48,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:00:48,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682122780] [2023-01-27 23:00:48,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:00:48,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:00:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 23:00:49,016 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-01-27 23:00:49,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 23:00:49,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682122780] [2023-01-27 23:00:49,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682122780] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 23:00:49,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 23:00:49,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 23:00:49,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614661895] [2023-01-27 23:00:49,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 23:00:49,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 23:00:49,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 23:00:49,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 23:00:49,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 23:00:49,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 416 [2023-01-27 23:00:49,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 60 transitions, 367 flow. Second operand has 5 states, 5 states have (on average 186.6) internal successors, (933), 5 states have internal predecessors, (933), 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) [2023-01-27 23:00:49,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 23:00:49,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 416 [2023-01-27 23:00:49,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 23:00:49,189 INFO L130 PetriNetUnfolder]: 1002/1400 cut-off events. [2023-01-27 23:00:49,189 INFO L131 PetriNetUnfolder]: For 2756/2928 co-relation queries the response was YES. [2023-01-27 23:00:49,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5027 conditions, 1400 events. 1002/1400 cut-off events. For 2756/2928 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4806 event pairs, 131 based on Foata normal form. 202/1426 useless extension candidates. Maximal degree in co-relation 4973. Up to 795 conditions per place. [2023-01-27 23:00:49,195 INFO L137 encePairwiseOnDemand]: 410/416 looper letters, 94 selfloop transitions, 12 changer transitions 2/112 dead transitions. [2023-01-27 23:00:49,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 112 transitions, 840 flow [2023-01-27 23:00:49,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 23:00:49,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 23:00:49,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1157 transitions. [2023-01-27 23:00:49,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4635416666666667 [2023-01-27 23:00:49,198 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1157 transitions. [2023-01-27 23:00:49,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1157 transitions. [2023-01-27 23:00:49,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 23:00:49,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1157 transitions. [2023-01-27 23:00:49,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 192.83333333333334) internal successors, (1157), 6 states have internal predecessors, (1157), 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) [2023-01-27 23:00:49,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 416.0) internal successors, (2912), 7 states have internal predecessors, (2912), 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) [2023-01-27 23:00:49,203 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 416.0) internal successors, (2912), 7 states have internal predecessors, (2912), 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) [2023-01-27 23:00:49,203 INFO L175 Difference]: Start difference. First operand has 60 places, 60 transitions, 367 flow. Second operand 6 states and 1157 transitions. [2023-01-27 23:00:49,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 112 transitions, 840 flow [2023-01-27 23:00:49,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 112 transitions, 808 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-01-27 23:00:49,209 INFO L231 Difference]: Finished difference. Result has 66 places, 66 transitions, 427 flow [2023-01-27 23:00:49,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=416, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=427, PETRI_PLACES=66, PETRI_TRANSITIONS=66} [2023-01-27 23:00:49,211 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 32 predicate places. [2023-01-27 23:00:49,211 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 66 transitions, 427 flow [2023-01-27 23:00:49,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 186.6) internal successors, (933), 5 states have internal predecessors, (933), 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) [2023-01-27 23:00:49,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:00:49,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:00:49,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-27 23:00:49,212 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 23:00:49,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:00:49,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1174297838, now seen corresponding path program 3 times [2023-01-27 23:00:49,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:00:49,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98550495] [2023-01-27 23:00:49,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:00:49,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:00:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 23:00:50,260 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-27 23:00:50,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 23:00:50,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98550495] [2023-01-27 23:00:50,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98550495] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 23:00:50,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339119355] [2023-01-27 23:00:50,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-27 23:00:50,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 23:00:50,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 23:00:50,262 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 23:00:50,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-27 23:00:50,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-01-27 23:00:50,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 23:00:50,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 43 conjunts are in the unsatisfiable core [2023-01-27 23:00:50,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 23:00:50,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 23:00:50,681 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 14 treesize of output 16 [2023-01-27 23:00:50,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 23:00:50,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 23:00:50,778 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-27 23:00:50,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2023-01-27 23:00:50,958 INFO L321 Elim1Store]: treesize reduction 36, result has 52.0 percent of original size [2023-01-27 23:00:50,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 54 [2023-01-27 23:00:51,353 INFO L321 Elim1Store]: treesize reduction 60, result has 68.3 percent of original size [2023-01-27 23:00:51,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 113 treesize of output 193 [2023-01-27 23:00:51,645 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-27 23:00:51,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 23:01:50,250 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_430 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_430))) (let ((.cse0 (select (select .cse2 c_~B~0.base) c_~B~0.offset)) (.cse1 (select (select .cse2 c_~A~0.base) c_~A~0.offset))) (= (+ c_~asum~0 c_~bsum~0 (* (div (+ .cse0 .cse1 c_~csum~0) 4294967296) 4294967296)) (+ .cse0 (* 4294967296 (div (+ c_~asum~0 c_~bsum~0) 4294967296)) .cse1 c_~csum~0))))) is different from false [2023-01-27 23:01:50,257 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_430 (Array Int Int))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_430))) (let ((.cse0 (select (select |c_#memory_int| c_~B~0.base) (+ (* c_thread1Thread1of1ForFork1_~i~0 4) c_~B~0.offset))) (.cse1 (select (select .cse3 c_~B~0.base) c_~B~0.offset)) (.cse2 (select (select .cse3 c_~A~0.base) c_~A~0.offset))) (= (+ .cse0 c_~asum~0 c_~bsum~0 (* (div (+ .cse1 .cse2 c_~csum~0) 4294967296) 4294967296)) (+ (* (div (+ .cse0 c_~asum~0 c_~bsum~0) 4294967296) 4294967296) .cse1 .cse2 c_~csum~0))))) is different from false [2023-01-27 23:01:50,273 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_429 (Array Int Int)) (v_ArrVal_430 (Array Int Int))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_429))) (let ((.cse4 (store .cse3 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_430))) (let ((.cse1 (select (select .cse4 c_~B~0.base) c_~B~0.offset)) (.cse2 (select (select .cse4 c_~A~0.base) c_~A~0.offset)) (.cse0 (select (select .cse3 c_~B~0.base) (+ (* c_thread1Thread1of1ForFork1_~i~0 4) c_~B~0.offset)))) (= (+ c_~asum~0 c_~bsum~0 .cse0 (* (div (+ .cse1 c_~csum~0 .cse2) 4294967296) 4294967296)) (+ .cse1 c_~csum~0 .cse2 (* (div (+ c_~asum~0 c_~bsum~0 .cse0) 4294967296) 4294967296))))))) is different from false [2023-01-27 23:01:50,356 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 23:01:50,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 4918 treesize of output 3194 [2023-01-27 23:01:50,398 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 23:01:50,398 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 774 treesize of output 718 [2023-01-27 23:01:50,427 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 23:01:50,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 710 treesize of output 610 [2023-01-27 23:02:17,985 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-01-27 23:02:25,569 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-01-27 23:03:41,563 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-27 23:06:14,638 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-27 23:06:14,675 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-27 23:08:02,250 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-27 23:09:21,431 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-27 23:09:21,467 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. Received shutdown request... [2023-01-27 23:11:30,407 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-27 23:11:30,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-01-27 23:11:30,425 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 [2023-01-27 23:11:30,434 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 23:11:30,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 23:11:30,612 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-11-3-9-4-11-4-8-5-1 term,while PolyPacSimplificationTermWalker was simplifying 15 xjuncts wrt. a ∧-33-4-6-3-11-4-8-5-2-3-2-1 context. [2023-01-27 23:11:30,622 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-27 23:11:30,623 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-27 23:11:30,623 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-27 23:11:30,623 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2023-01-27 23:11:30,625 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 23:11:30,626 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 23:11:30,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:11:30 BasicIcfg [2023-01-27 23:11:30,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 23:11:30,628 INFO L158 Benchmark]: Toolchain (without parser) took 866259.51ms. Allocated memory was 576.7MB in the beginning and 1.2GB in the end (delta: 622.9MB). Free memory was 535.6MB in the beginning and 826.7MB in the end (delta: -291.1MB). Peak memory consumption was 739.6MB. Max. memory is 16.0GB. [2023-01-27 23:11:30,628 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 362.8MB. Free memory is still 310.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 23:11:30,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.91ms. Allocated memory is still 576.7MB. Free memory was 535.2MB in the beginning and 523.7MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-27 23:11:30,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.76ms. Allocated memory is still 576.7MB. Free memory was 523.7MB in the beginning and 521.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 23:11:30,628 INFO L158 Benchmark]: Boogie Preprocessor took 29.52ms. Allocated memory is still 576.7MB. Free memory was 521.6MB in the beginning and 519.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 23:11:30,629 INFO L158 Benchmark]: RCFGBuilder took 456.26ms. Allocated memory is still 576.7MB. Free memory was 519.9MB in the beginning and 498.3MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-01-27 23:11:30,629 INFO L158 Benchmark]: TraceAbstraction took 865573.67ms. Allocated memory was 576.7MB in the beginning and 1.2GB in the end (delta: 622.9MB). Free memory was 497.5MB in the beginning and 826.7MB in the end (delta: -329.2MB). Peak memory consumption was 699.7MB. Max. memory is 16.0GB. [2023-01-27 23:11:30,630 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 362.8MB. Free memory is still 310.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 159.91ms. Allocated memory is still 576.7MB. Free memory was 535.2MB in the beginning and 523.7MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 35.76ms. Allocated memory is still 576.7MB. Free memory was 523.7MB in the beginning and 521.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.52ms. Allocated memory is still 576.7MB. Free memory was 521.6MB in the beginning and 519.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 456.26ms. Allocated memory is still 576.7MB. Free memory was 519.9MB in the beginning and 498.3MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 865573.67ms. Allocated memory was 576.7MB in the beginning and 1.2GB in the end (delta: 622.9MB). Free memory was 497.5MB in the beginning and 826.7MB in the end (delta: -329.2MB). Peak memory consumption was 699.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 189 PlacesBefore, 34 PlacesAfterwards, 199 TransitionsBefore, 31 TransitionsAfterwards, 1874 CoEnabledTransitionPairs, 7 FixpointIterations, 120 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 32 TrivialYvCompositions, 6 ConcurrentYvCompositions, 13 ChoiceCompositions, 204 TotalNumberOfCompositions, 2518 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2060, independent: 2001, independent conditional: 0, independent unconditional: 2001, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 995, independent: 972, independent conditional: 0, independent unconditional: 972, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2060, independent: 1029, independent conditional: 0, independent unconditional: 1029, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 995, unknown conditional: 0, unknown unconditional: 995] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-11-3-9-4-11-4-8-5-1 term,while PolyPacSimplificationTermWalker was simplifying 15 xjuncts wrt. a ∧-33-4-6-3-11-4-8-5-2-3-2-1 context. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-11-3-9-4-11-4-8-5-1 term,while PolyPacSimplificationTermWalker was simplifying 15 xjuncts wrt. a ∧-33-4-6-3-11-4-8-5-2-3-2-1 context. - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-11-3-9-4-11-4-8-5-1 term,while PolyPacSimplificationTermWalker was simplifying 15 xjuncts wrt. a ∧-33-4-6-3-11-4-8-5-2-3-2-1 context. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-11-3-9-4-11-4-8-5-1 term,while PolyPacSimplificationTermWalker was simplifying 15 xjuncts wrt. a ∧-33-4-6-3-11-4-8-5-2-3-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 230 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: 865.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 460 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 460 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 104 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1558 IncrementalHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 14 mSDtfsCounter, 1558 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 275 GetRequests, 187 SyntacticMatches, 5 SemanticMatches, 83 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 26.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=427occurred in iteration=8, InterpolantAutomatonStates: 47, 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, 0.5s SatisfiabilityAnalysisTime, 214.8s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 423 ConstructedInterpolants, 14 QuantifiedInterpolants, 4103 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1204 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 53/68 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