/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 05:01:19,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 05:01:19,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 05:01:19,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 05:01:19,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 05:01:19,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 05:01:19,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 05:01:19,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 05:01:19,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 05:01:19,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 05:01:19,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 05:01:19,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 05:01:19,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 05:01:19,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 05:01:19,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 05:01:19,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 05:01:19,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 05:01:19,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 05:01:19,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 05:01:19,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 05:01:19,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 05:01:19,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 05:01:19,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 05:01:19,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 05:01:19,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 05:01:19,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 05:01:19,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 05:01:19,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 05:01:19,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 05:01:19,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 05:01:19,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 05:01:19,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 05:01:19,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 05:01:19,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 05:01:19,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 05:01:19,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 05:01:19,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 05:01:19,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 05:01:19,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 05:01:19,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 05:01:19,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 05:01:19,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf [2022-01-19 05:01:19,490 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 05:01:19,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 05:01:19,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 05:01:19,491 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 05:01:19,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 05:01:19,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 05:01:19,491 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 05:01:19,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 05:01:19,491 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 05:01:19,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 05:01:19,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 05:01:19,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 05:01:19,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 05:01:19,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 05:01:19,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 05:01:19,492 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 05:01:19,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 05:01:19,492 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 05:01:19,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 05:01:19,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 05:01:19,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 05:01:19,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 05:01:19,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 05:01:19,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:01:19,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 05:01:19,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 05:01:19,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 05:01:19,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 05:01:19,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 05:01:19,493 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 05:01:19,493 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 05:01:19,493 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 05:01:19,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 05:01:19,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 05:01:19,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 05:01:19,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 05:01:19,687 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 05:01:19,688 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 05:01:19,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i [2022-01-19 05:01:19,745 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dad7073d7/392329f7eb794a3696e985da047bff00/FLAGab069b910 [2022-01-19 05:01:20,136 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 05:01:20,136 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.i [2022-01-19 05:01:20,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dad7073d7/392329f7eb794a3696e985da047bff00/FLAGab069b910 [2022-01-19 05:01:20,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dad7073d7/392329f7eb794a3696e985da047bff00 [2022-01-19 05:01:20,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 05:01:20,171 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 05:01:20,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 05:01:20,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 05:01:20,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 05:01:20,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:01:20" (1/1) ... [2022-01-19 05:01:20,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e24f9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:20, skipping insertion in model container [2022-01-19 05:01:20,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:01:20" (1/1) ... [2022-01-19 05:01:20,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 05:01:20,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 05:01:20,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.i[945,958] [2022-01-19 05:01:20,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:01:20,446 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 05:01:20,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.i[945,958] [2022-01-19 05:01:20,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:01:20,498 INFO L208 MainTranslator]: Completed translation [2022-01-19 05:01:20,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:20 WrapperNode [2022-01-19 05:01:20,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 05:01:20,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 05:01:20,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 05:01:20,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 05:01:20,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:20" (1/1) ... [2022-01-19 05:01:20,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:20" (1/1) ... [2022-01-19 05:01:20,545 INFO L137 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-01-19 05:01:20,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 05:01:20,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 05:01:20,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 05:01:20,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 05:01:20,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:20" (1/1) ... [2022-01-19 05:01:20,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:20" (1/1) ... [2022-01-19 05:01:20,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:20" (1/1) ... [2022-01-19 05:01:20,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:20" (1/1) ... [2022-01-19 05:01:20,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:20" (1/1) ... [2022-01-19 05:01:20,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:20" (1/1) ... [2022-01-19 05:01:20,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:20" (1/1) ... [2022-01-19 05:01:20,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 05:01:20,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 05:01:20,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 05:01:20,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 05:01:20,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:20" (1/1) ... [2022-01-19 05:01:20,599 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:01:20,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:01:20,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 05:01:20,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 05:01:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 05:01:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 05:01:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 05:01:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 05:01:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 05:01:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-19 05:01:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-19 05:01:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-19 05:01:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-19 05:01:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-01-19 05:01:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-01-19 05:01:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 05:01:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 05:01:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 05:01:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 05:01:20,729 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 05:01:20,855 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 05:01:20,856 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 05:01:20,975 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 05:01:20,980 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 05:01:20,980 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 05:01:20,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:01:20 BoogieIcfgContainer [2022-01-19 05:01:20,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 05:01:20,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 05:01:20,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 05:01:20,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 05:01:20,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 05:01:20" (1/3) ... [2022-01-19 05:01:20,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39893861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:01:20, skipping insertion in model container [2022-01-19 05:01:20,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:01:20" (2/3) ... [2022-01-19 05:01:20,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39893861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:01:20, skipping insertion in model container [2022-01-19 05:01:20,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:01:20" (3/3) ... [2022-01-19 05:01:20,986 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2022-01-19 05:01:20,989 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 05:01:20,990 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 05:01:20,990 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 05:01:21,010 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,010 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,010 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,010 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,010 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,010 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,010 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,010 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,011 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,011 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,011 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,011 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,011 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,011 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,011 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,012 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,012 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,012 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,012 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,012 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,012 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,012 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,012 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,012 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,013 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,013 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,013 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,013 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,013 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,013 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,013 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,013 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,014 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,014 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,014 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,014 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,015 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,016 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,016 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,016 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,017 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,017 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,017 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,017 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,018 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,018 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,018 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,018 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:01:21,018 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 05:01:21,045 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:01:21,049 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:01:21,049 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 05:01:21,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 197 flow [2022-01-19 05:01:21,090 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2022-01-19 05:01:21,090 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:01:21,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2022-01-19 05:01:21,097 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 91 transitions, 197 flow [2022-01-19 05:01:21,103 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 74 transitions, 157 flow [2022-01-19 05:01:21,120 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2022-01-19 05:01:21,120 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:01:21,120 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:21,121 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:21,121 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 05:01:21,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:21,127 INFO L85 PathProgramCache]: Analyzing trace with hash -669780344, now seen corresponding path program 1 times [2022-01-19 05:01:21,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:21,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341827975] [2022-01-19 05:01:21,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:21,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:21,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:21,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:21,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341827975] [2022-01-19 05:01:21,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341827975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:21,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:21,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 05:01:21,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440478303] [2022-01-19 05:01:21,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:21,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 05:01:21,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:21,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 05:01:21,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 05:01:21,459 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 91 [2022-01-19 05:01:21,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:21,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:21,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 91 [2022-01-19 05:01:21,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:21,753 INFO L129 PetriNetUnfolder]: 693/1319 cut-off events. [2022-01-19 05:01:21,754 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-01-19 05:01:21,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2441 conditions, 1319 events. 693/1319 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 7037 event pairs, 112 based on Foata normal form. 42/1313 useless extension candidates. Maximal degree in co-relation 2404. Up to 444 conditions per place. [2022-01-19 05:01:21,765 INFO L132 encePairwiseOnDemand]: 79/91 looper letters, 24 selfloop transitions, 7 changer transitions 43/128 dead transitions. [2022-01-19 05:01:21,767 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 128 transitions, 419 flow [2022-01-19 05:01:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 05:01:21,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 05:01:21,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 690 transitions. [2022-01-19 05:01:21,788 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8424908424908425 [2022-01-19 05:01:21,789 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 690 transitions. [2022-01-19 05:01:21,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 690 transitions. [2022-01-19 05:01:21,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:21,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 690 transitions. [2022-01-19 05:01:21,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.66666666666667) internal successors, (690), 9 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:21,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:21,802 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:21,804 INFO L186 Difference]: Start difference. First operand has 83 places, 74 transitions, 157 flow. Second operand 9 states and 690 transitions. [2022-01-19 05:01:21,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 128 transitions, 419 flow [2022-01-19 05:01:21,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 128 transitions, 414 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 05:01:21,811 INFO L242 Difference]: Finished difference. Result has 96 places, 79 transitions, 254 flow [2022-01-19 05:01:21,812 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=254, PETRI_PLACES=96, PETRI_TRANSITIONS=79} [2022-01-19 05:01:21,815 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 13 predicate places. [2022-01-19 05:01:21,815 INFO L470 AbstractCegarLoop]: Abstraction has has 96 places, 79 transitions, 254 flow [2022-01-19 05:01:21,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:21,815 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:21,815 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:21,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 05:01:21,816 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 05:01:21,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:21,816 INFO L85 PathProgramCache]: Analyzing trace with hash 2045920767, now seen corresponding path program 1 times [2022-01-19 05:01:21,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:21,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071094862] [2022-01-19 05:01:21,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:21,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:21,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:21,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071094862] [2022-01-19 05:01:21,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071094862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:21,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:21,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:01:21,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032042449] [2022-01-19 05:01:21,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:21,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:01:21,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:21,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:01:21,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:01:21,930 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 91 [2022-01-19 05:01:21,931 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 79 transitions, 254 flow. Second operand has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:21,931 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:21,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 91 [2022-01-19 05:01:21,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:22,180 INFO L129 PetriNetUnfolder]: 504/1087 cut-off events. [2022-01-19 05:01:22,180 INFO L130 PetriNetUnfolder]: For 2713/2868 co-relation queries the response was YES. [2022-01-19 05:01:22,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3977 conditions, 1087 events. 504/1087 cut-off events. For 2713/2868 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 5901 event pairs, 34 based on Foata normal form. 27/1081 useless extension candidates. Maximal degree in co-relation 3933. Up to 469 conditions per place. [2022-01-19 05:01:22,187 INFO L132 encePairwiseOnDemand]: 79/91 looper letters, 25 selfloop transitions, 12 changer transitions 52/143 dead transitions. [2022-01-19 05:01:22,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 143 transitions, 874 flow [2022-01-19 05:01:22,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 05:01:22,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 05:01:22,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 968 transitions. [2022-01-19 05:01:22,189 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8182586644125106 [2022-01-19 05:01:22,189 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 968 transitions. [2022-01-19 05:01:22,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 968 transitions. [2022-01-19 05:01:22,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:22,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 968 transitions. [2022-01-19 05:01:22,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.46153846153847) internal successors, (968), 13 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:22,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:22,193 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:22,194 INFO L186 Difference]: Start difference. First operand has 96 places, 79 transitions, 254 flow. Second operand 13 states and 968 transitions. [2022-01-19 05:01:22,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 143 transitions, 874 flow [2022-01-19 05:01:22,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 143 transitions, 804 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 05:01:22,203 INFO L242 Difference]: Finished difference. Result has 112 places, 85 transitions, 370 flow [2022-01-19 05:01:22,203 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=370, PETRI_PLACES=112, PETRI_TRANSITIONS=85} [2022-01-19 05:01:22,204 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 29 predicate places. [2022-01-19 05:01:22,204 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 85 transitions, 370 flow [2022-01-19 05:01:22,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:22,204 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:22,204 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:22,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 05:01:22,204 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 05:01:22,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:22,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1147349385, now seen corresponding path program 1 times [2022-01-19 05:01:22,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:22,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108469411] [2022-01-19 05:01:22,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:22,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:22,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:22,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:22,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108469411] [2022-01-19 05:01:22,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108469411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:22,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:22,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:01:22,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291697013] [2022-01-19 05:01:22,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:22,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:01:22,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:22,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:01:22,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:01:22,363 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 91 [2022-01-19 05:01:22,364 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 85 transitions, 370 flow. Second operand has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:22,364 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:22,364 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 91 [2022-01-19 05:01:22,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:22,623 INFO L129 PetriNetUnfolder]: 327/827 cut-off events. [2022-01-19 05:01:22,623 INFO L130 PetriNetUnfolder]: For 4009/4655 co-relation queries the response was YES. [2022-01-19 05:01:22,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3413 conditions, 827 events. 327/827 cut-off events. For 4009/4655 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4585 event pairs, 8 based on Foata normal form. 32/829 useless extension candidates. Maximal degree in co-relation 3355. Up to 303 conditions per place. [2022-01-19 05:01:22,627 INFO L132 encePairwiseOnDemand]: 81/91 looper letters, 35 selfloop transitions, 7 changer transitions 67/163 dead transitions. [2022-01-19 05:01:22,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 163 transitions, 1326 flow [2022-01-19 05:01:22,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 05:01:22,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 05:01:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 966 transitions. [2022-01-19 05:01:22,630 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8165680473372781 [2022-01-19 05:01:22,630 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 966 transitions. [2022-01-19 05:01:22,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 966 transitions. [2022-01-19 05:01:22,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:22,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 966 transitions. [2022-01-19 05:01:22,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.3076923076923) internal successors, (966), 13 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:22,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:22,634 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:22,634 INFO L186 Difference]: Start difference. First operand has 112 places, 85 transitions, 370 flow. Second operand 13 states and 966 transitions. [2022-01-19 05:01:22,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 163 transitions, 1326 flow [2022-01-19 05:01:22,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 163 transitions, 1258 flow, removed 34 selfloop flow, removed 3 redundant places. [2022-01-19 05:01:22,644 INFO L242 Difference]: Finished difference. Result has 124 places, 88 transitions, 448 flow [2022-01-19 05:01:22,644 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=448, PETRI_PLACES=124, PETRI_TRANSITIONS=88} [2022-01-19 05:01:22,646 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 41 predicate places. [2022-01-19 05:01:22,646 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 88 transitions, 448 flow [2022-01-19 05:01:22,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:22,646 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:22,647 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:22,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 05:01:22,649 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 05:01:22,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash -532063284, now seen corresponding path program 1 times [2022-01-19 05:01:22,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:22,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638566772] [2022-01-19 05:01:22,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:22,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:22,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:22,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638566772] [2022-01-19 05:01:22,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638566772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:22,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:22,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 05:01:22,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152940469] [2022-01-19 05:01:22,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:22,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 05:01:22,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:22,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 05:01:22,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 05:01:22,754 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 91 [2022-01-19 05:01:22,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 88 transitions, 448 flow. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:22,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:22,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 91 [2022-01-19 05:01:22,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:22,899 INFO L129 PetriNetUnfolder]: 115/473 cut-off events. [2022-01-19 05:01:22,899 INFO L130 PetriNetUnfolder]: For 3213/3609 co-relation queries the response was YES. [2022-01-19 05:01:22,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 473 events. 115/473 cut-off events. For 3213/3609 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2561 event pairs, 15 based on Foata normal form. 75/529 useless extension candidates. Maximal degree in co-relation 1808. Up to 145 conditions per place. [2022-01-19 05:01:22,902 INFO L132 encePairwiseOnDemand]: 85/91 looper letters, 21 selfloop transitions, 5 changer transitions 29/119 dead transitions. [2022-01-19 05:01:22,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 119 transitions, 916 flow [2022-01-19 05:01:22,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 05:01:22,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 05:01:22,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 693 transitions. [2022-01-19 05:01:22,904 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2022-01-19 05:01:22,904 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 693 transitions. [2022-01-19 05:01:22,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 693 transitions. [2022-01-19 05:01:22,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:22,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 693 transitions. [2022-01-19 05:01:22,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.0) internal successors, (693), 9 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:22,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:22,907 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:22,907 INFO L186 Difference]: Start difference. First operand has 124 places, 88 transitions, 448 flow. Second operand 9 states and 693 transitions. [2022-01-19 05:01:22,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 119 transitions, 916 flow [2022-01-19 05:01:22,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 119 transitions, 841 flow, removed 35 selfloop flow, removed 8 redundant places. [2022-01-19 05:01:22,916 INFO L242 Difference]: Finished difference. Result has 122 places, 85 transitions, 412 flow [2022-01-19 05:01:22,916 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=412, PETRI_PLACES=122, PETRI_TRANSITIONS=85} [2022-01-19 05:01:22,917 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 39 predicate places. [2022-01-19 05:01:22,917 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 85 transitions, 412 flow [2022-01-19 05:01:22,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:22,918 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:22,918 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:22,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 05:01:22,918 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 05:01:22,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:22,920 INFO L85 PathProgramCache]: Analyzing trace with hash 675104110, now seen corresponding path program 1 times [2022-01-19 05:01:22,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:22,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873676086] [2022-01-19 05:01:22,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:22,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:23,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:23,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:23,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873676086] [2022-01-19 05:01:23,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873676086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:23,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:23,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 05:01:23,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408778849] [2022-01-19 05:01:23,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:23,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 05:01:23,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:23,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 05:01:23,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 05:01:23,021 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 91 [2022-01-19 05:01:23,022 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 85 transitions, 412 flow. Second operand has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:23,022 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 91 [2022-01-19 05:01:23,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:23,119 INFO L129 PetriNetUnfolder]: 71/301 cut-off events. [2022-01-19 05:01:23,119 INFO L130 PetriNetUnfolder]: For 1555/1818 co-relation queries the response was YES. [2022-01-19 05:01:23,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1173 conditions, 301 events. 71/301 cut-off events. For 1555/1818 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1262 event pairs, 10 based on Foata normal form. 18/312 useless extension candidates. Maximal degree in co-relation 1107. Up to 87 conditions per place. [2022-01-19 05:01:23,122 INFO L132 encePairwiseOnDemand]: 84/91 looper letters, 14 selfloop transitions, 8 changer transitions 24/114 dead transitions. [2022-01-19 05:01:23,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 114 transitions, 808 flow [2022-01-19 05:01:23,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 05:01:23,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 05:01:23,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 712 transitions. [2022-01-19 05:01:23,123 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8693528693528694 [2022-01-19 05:01:23,123 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 712 transitions. [2022-01-19 05:01:23,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 712 transitions. [2022-01-19 05:01:23,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:23,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 712 transitions. [2022-01-19 05:01:23,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 79.11111111111111) internal successors, (712), 9 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,127 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,127 INFO L186 Difference]: Start difference. First operand has 122 places, 85 transitions, 412 flow. Second operand 9 states and 712 transitions. [2022-01-19 05:01:23,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 114 transitions, 808 flow [2022-01-19 05:01:23,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 114 transitions, 706 flow, removed 47 selfloop flow, removed 16 redundant places. [2022-01-19 05:01:23,132 INFO L242 Difference]: Finished difference. Result has 115 places, 88 transitions, 436 flow [2022-01-19 05:01:23,133 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=436, PETRI_PLACES=115, PETRI_TRANSITIONS=88} [2022-01-19 05:01:23,134 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 32 predicate places. [2022-01-19 05:01:23,134 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 88 transitions, 436 flow [2022-01-19 05:01:23,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,134 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:23,134 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:23,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 05:01:23,135 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 05:01:23,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:23,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1013035987, now seen corresponding path program 1 times [2022-01-19 05:01:23,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:23,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646390775] [2022-01-19 05:01:23,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:23,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:23,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:23,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:23,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646390775] [2022-01-19 05:01:23,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646390775] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:23,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:23,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 05:01:23,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161972699] [2022-01-19 05:01:23,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:23,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 05:01:23,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:23,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 05:01:23,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 05:01:23,193 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2022-01-19 05:01:23,194 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 88 transitions, 436 flow. Second operand has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,194 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:23,194 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2022-01-19 05:01:23,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:23,334 INFO L129 PetriNetUnfolder]: 303/929 cut-off events. [2022-01-19 05:01:23,334 INFO L130 PetriNetUnfolder]: For 1296/1414 co-relation queries the response was YES. [2022-01-19 05:01:23,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2221 conditions, 929 events. 303/929 cut-off events. For 1296/1414 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6727 event pairs, 39 based on Foata normal form. 7/847 useless extension candidates. Maximal degree in co-relation 2162. Up to 206 conditions per place. [2022-01-19 05:01:23,340 INFO L132 encePairwiseOnDemand]: 81/91 looper letters, 29 selfloop transitions, 17 changer transitions 0/120 dead transitions. [2022-01-19 05:01:23,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 120 transitions, 596 flow [2022-01-19 05:01:23,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 05:01:23,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 05:01:23,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 788 transitions. [2022-01-19 05:01:23,342 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.865934065934066 [2022-01-19 05:01:23,342 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 788 transitions. [2022-01-19 05:01:23,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 788 transitions. [2022-01-19 05:01:23,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:23,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 788 transitions. [2022-01-19 05:01:23,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.8) internal successors, (788), 10 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,345 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,346 INFO L186 Difference]: Start difference. First operand has 115 places, 88 transitions, 436 flow. Second operand 10 states and 788 transitions. [2022-01-19 05:01:23,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 120 transitions, 596 flow [2022-01-19 05:01:23,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 120 transitions, 567 flow, removed 9 selfloop flow, removed 8 redundant places. [2022-01-19 05:01:23,350 INFO L242 Difference]: Finished difference. Result has 116 places, 103 transitions, 527 flow [2022-01-19 05:01:23,350 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=527, PETRI_PLACES=116, PETRI_TRANSITIONS=103} [2022-01-19 05:01:23,351 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 33 predicate places. [2022-01-19 05:01:23,351 INFO L470 AbstractCegarLoop]: Abstraction has has 116 places, 103 transitions, 527 flow [2022-01-19 05:01:23,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,352 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:23,352 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:23,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 05:01:23,352 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 05:01:23,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:23,353 INFO L85 PathProgramCache]: Analyzing trace with hash 888305234, now seen corresponding path program 1 times [2022-01-19 05:01:23,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:23,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183032043] [2022-01-19 05:01:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:23,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:23,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:23,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:23,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183032043] [2022-01-19 05:01:23,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183032043] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:23,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:23,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:01:23,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824977641] [2022-01-19 05:01:23,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:23,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:01:23,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:23,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:01:23,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:01:23,443 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2022-01-19 05:01:23,443 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 103 transitions, 527 flow. Second operand has 7 states, 7 states have (on average 75.57142857142857) internal successors, (529), 7 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,443 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:23,443 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2022-01-19 05:01:23,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:23,610 INFO L129 PetriNetUnfolder]: 264/830 cut-off events. [2022-01-19 05:01:23,610 INFO L130 PetriNetUnfolder]: For 1874/2291 co-relation queries the response was YES. [2022-01-19 05:01:23,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2770 conditions, 830 events. 264/830 cut-off events. For 1874/2291 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 6232 event pairs, 3 based on Foata normal form. 92/856 useless extension candidates. Maximal degree in co-relation 2710. Up to 246 conditions per place. [2022-01-19 05:01:23,618 INFO L132 encePairwiseOnDemand]: 81/91 looper letters, 22 selfloop transitions, 32 changer transitions 13/141 dead transitions. [2022-01-19 05:01:23,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 141 transitions, 897 flow [2022-01-19 05:01:23,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 05:01:23,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 05:01:23,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1025 transitions. [2022-01-19 05:01:23,620 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8664412510566357 [2022-01-19 05:01:23,620 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1025 transitions. [2022-01-19 05:01:23,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1025 transitions. [2022-01-19 05:01:23,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:23,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1025 transitions. [2022-01-19 05:01:23,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 78.84615384615384) internal successors, (1025), 13 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,624 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,624 INFO L186 Difference]: Start difference. First operand has 116 places, 103 transitions, 527 flow. Second operand 13 states and 1025 transitions. [2022-01-19 05:01:23,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 141 transitions, 897 flow [2022-01-19 05:01:23,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 141 transitions, 889 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-01-19 05:01:23,630 INFO L242 Difference]: Finished difference. Result has 131 places, 119 transitions, 722 flow [2022-01-19 05:01:23,630 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=722, PETRI_PLACES=131, PETRI_TRANSITIONS=119} [2022-01-19 05:01:23,630 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 48 predicate places. [2022-01-19 05:01:23,630 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 119 transitions, 722 flow [2022-01-19 05:01:23,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.57142857142857) internal successors, (529), 7 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,631 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:01:23,631 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:23,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 05:01:23,631 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 05:01:23,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:01:23,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1610954983, now seen corresponding path program 1 times [2022-01-19 05:01:23,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:01:23,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220512780] [2022-01-19 05:01:23,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:01:23,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:01:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:01:23,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:01:23,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:01:23,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220512780] [2022-01-19 05:01:23,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220512780] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:01:23,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:01:23,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 05:01:23,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389551821] [2022-01-19 05:01:23,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:01:23,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 05:01:23,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:01:23,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 05:01:23,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-19 05:01:23,719 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2022-01-19 05:01:23,720 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 119 transitions, 722 flow. Second operand has 8 states, 8 states have (on average 75.5) internal successors, (604), 8 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:01:23,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2022-01-19 05:01:23,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:01:23,943 INFO L129 PetriNetUnfolder]: 226/744 cut-off events. [2022-01-19 05:01:23,943 INFO L130 PetriNetUnfolder]: For 2849/3161 co-relation queries the response was YES. [2022-01-19 05:01:23,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2960 conditions, 744 events. 226/744 cut-off events. For 2849/3161 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 5741 event pairs, 0 based on Foata normal form. 69/751 useless extension candidates. Maximal degree in co-relation 2894. Up to 197 conditions per place. [2022-01-19 05:01:23,947 INFO L132 encePairwiseOnDemand]: 83/91 looper letters, 0 selfloop transitions, 0 changer transitions 126/126 dead transitions. [2022-01-19 05:01:23,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 126 transitions, 895 flow [2022-01-19 05:01:23,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-19 05:01:23,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-01-19 05:01:23,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1163 transitions. [2022-01-19 05:01:23,949 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.852014652014652 [2022-01-19 05:01:23,950 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1163 transitions. [2022-01-19 05:01:23,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1163 transitions. [2022-01-19 05:01:23,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:01:23,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1163 transitions. [2022-01-19 05:01:23,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 77.53333333333333) internal successors, (1163), 15 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 91.0) internal successors, (1456), 16 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,954 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 91.0) internal successors, (1456), 16 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,954 INFO L186 Difference]: Start difference. First operand has 131 places, 119 transitions, 722 flow. Second operand 15 states and 1163 transitions. [2022-01-19 05:01:23,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 126 transitions, 895 flow [2022-01-19 05:01:23,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 126 transitions, 711 flow, removed 64 selfloop flow, removed 18 redundant places. [2022-01-19 05:01:23,964 INFO L242 Difference]: Finished difference. Result has 118 places, 0 transitions, 0 flow [2022-01-19 05:01:23,964 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=118, PETRI_TRANSITIONS=0} [2022-01-19 05:01:23,966 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 35 predicate places. [2022-01-19 05:01:23,966 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 0 transitions, 0 flow [2022-01-19 05:01:23,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 75.5) internal successors, (604), 8 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:01:23,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 05:01:23,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-19 05:01:23,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-19 05:01:23,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-19 05:01:23,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 05:01:23,971 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:01:23,972 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 05:01:23,972 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 05:01:23,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 05:01:23 BasicIcfg [2022-01-19 05:01:23,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 05:01:23,977 INFO L158 Benchmark]: Toolchain (without parser) took 3806.14ms. Allocated memory was 436.2MB in the beginning and 595.6MB in the end (delta: 159.4MB). Free memory was 380.6MB in the beginning and 528.4MB in the end (delta: -147.9MB). Peak memory consumption was 14.2MB. Max. memory is 16.0GB. [2022-01-19 05:01:23,978 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 436.2MB. Free memory is still 398.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 05:01:23,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.77ms. Allocated memory is still 436.2MB. Free memory was 380.4MB in the beginning and 399.5MB in the end (delta: -19.0MB). Peak memory consumption was 15.2MB. Max. memory is 16.0GB. [2022-01-19 05:01:23,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.15ms. Allocated memory is still 436.2MB. Free memory was 399.5MB in the beginning and 397.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 05:01:23,978 INFO L158 Benchmark]: Boogie Preprocessor took 32.07ms. Allocated memory is still 436.2MB. Free memory was 397.4MB in the beginning and 396.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 05:01:23,978 INFO L158 Benchmark]: RCFGBuilder took 402.07ms. Allocated memory is still 436.2MB. Free memory was 396.3MB in the beginning and 382.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-19 05:01:23,978 INFO L158 Benchmark]: TraceAbstraction took 2994.69ms. Allocated memory was 436.2MB in the beginning and 595.6MB in the end (delta: 159.4MB). Free memory was 381.6MB in the beginning and 528.4MB in the end (delta: -146.8MB). Peak memory consumption was 15.7MB. Max. memory is 16.0GB. [2022-01-19 05:01:23,979 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 436.2MB. Free memory is still 398.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 326.77ms. Allocated memory is still 436.2MB. Free memory was 380.4MB in the beginning and 399.5MB in the end (delta: -19.0MB). Peak memory consumption was 15.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.15ms. Allocated memory is still 436.2MB. Free memory was 399.5MB in the beginning and 397.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 32.07ms. Allocated memory is still 436.2MB. Free memory was 397.4MB in the beginning and 396.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 402.07ms. Allocated memory is still 436.2MB. Free memory was 396.3MB in the beginning and 382.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2994.69ms. Allocated memory was 436.2MB in the beginning and 595.6MB in the end (delta: 159.4MB). Free memory was 381.6MB in the beginning and 528.4MB in the end (delta: -146.8MB). Peak memory consumption was 15.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 114 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: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 363 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 363 mSDsluCounter, 455 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 425 mSDsCounter, 110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 504 IncrementalHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 110 mSolverCounterUnsat, 123 mSDtfsCounter, 504 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=722occurred in iteration=7, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 471 NumberOfCodeBlocks, 471 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 463 ConstructedInterpolants, 0 QuantifiedInterpolants, 2049 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 05:01:24,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...