/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:47:43,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:47:43,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:47:43,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:47:43,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:47:43,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:47:43,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:47:43,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:47:43,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:47:43,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:47:43,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:47:43,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:47:43,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:47:43,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:47:43,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:47:43,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:47:43,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:47:43,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:47:43,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:47:43,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:47:43,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:47:43,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:47:43,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:47:43,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:47:43,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:47:43,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:47:43,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:47:43,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:47:43,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:47:43,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:47:43,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:47:43,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:47:43,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:47:43,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:47:43,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:47:43,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:47:43,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:47:43,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:47:43,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:47:43,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:47:43,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:47:43,475 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-SemanticLbe.epf [2022-12-05 20:47:43,500 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:47:43,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:47:43,502 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:47:43,502 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:47:43,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:47:43,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:47:43,503 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:47:43,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:47:43,503 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:47:43,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:47:43,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:47:43,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:47:43,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:47:43,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:47:43,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:47:43,505 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:47:43,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:47:43,505 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:47:43,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:47:43,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:47:43,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:47:43,505 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:47:43,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:47:43,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:47:43,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:47:43,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:47:43,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:47:43,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:47:43,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:47:43,506 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:47:43,506 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:47:43,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:47:43,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:47:43,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:47:43,781 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:47:43,781 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:47:43,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-05 20:47:44,835 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:47:45,045 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:47:45,045 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-05 20:47:45,064 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f373ff879/22f164d15996471ba71d5e55e2d7b5d6/FLAGded0df4be [2022-12-05 20:47:45,083 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f373ff879/22f164d15996471ba71d5e55e2d7b5d6 [2022-12-05 20:47:45,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:47:45,087 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:47:45,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:47:45,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:47:45,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:47:45,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:47:45" (1/1) ... [2022-12-05 20:47:45,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@434b8ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:45, skipping insertion in model container [2022-12-05 20:47:45,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:47:45" (1/1) ... [2022-12-05 20:47:45,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:47:45,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:47:45,263 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-12-05 20:47:45,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:47:45,394 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:47:45,402 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-12-05 20:47:45,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:47:45,449 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:47:45,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:45 WrapperNode [2022-12-05 20:47:45,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:47:45,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:47:45,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:47:45,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:47:45,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:45" (1/1) ... [2022-12-05 20:47:45,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:45" (1/1) ... [2022-12-05 20:47:45,480 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 139 [2022-12-05 20:47:45,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:47:45,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:47:45,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:47:45,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:47:45,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:45" (1/1) ... [2022-12-05 20:47:45,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:45" (1/1) ... [2022-12-05 20:47:45,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:45" (1/1) ... [2022-12-05 20:47:45,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:45" (1/1) ... [2022-12-05 20:47:45,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:45" (1/1) ... [2022-12-05 20:47:45,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:45" (1/1) ... [2022-12-05 20:47:45,502 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:45" (1/1) ... [2022-12-05 20:47:45,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:45" (1/1) ... [2022-12-05 20:47:45,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:47:45,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:47:45,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:47:45,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:47:45,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:45" (1/1) ... [2022-12-05 20:47:45,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:47:45,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:47:45,559 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 20:47:45,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 20:47:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:47:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:47:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:47:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:47:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 20:47:45,586 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 20:47:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:47:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:47:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:47:45,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:47:45,588 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:47:45,680 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:47:45,681 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:47:45,925 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:47:45,931 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:47:45,931 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:47:45,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:47:45 BoogieIcfgContainer [2022-12-05 20:47:45,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:47:45,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:47:45,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:47:45,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:47:45,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:47:45" (1/3) ... [2022-12-05 20:47:45,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5ed56f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:47:45, skipping insertion in model container [2022-12-05 20:47:45,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:45" (2/3) ... [2022-12-05 20:47:45,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5ed56f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:47:45, skipping insertion in model container [2022-12-05 20:47:45,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:47:45" (3/3) ... [2022-12-05 20:47:45,938 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-05 20:47:45,955 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:47:45,956 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-05 20:47:45,956 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:47:46,053 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 20:47:46,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 162 transitions, 329 flow [2022-12-05 20:47:46,166 INFO L130 PetriNetUnfolder]: 8/164 cut-off events. [2022-12-05 20:47:46,167 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:47:46,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 164 events. 8/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 149 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 118. Up to 2 conditions per place. [2022-12-05 20:47:46,172 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 162 transitions, 329 flow [2022-12-05 20:47:46,179 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 160 transitions, 323 flow [2022-12-05 20:47:46,181 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:47:46,199 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 160 transitions, 323 flow [2022-12-05 20:47:46,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 160 transitions, 323 flow [2022-12-05 20:47:46,253 INFO L130 PetriNetUnfolder]: 8/160 cut-off events. [2022-12-05 20:47:46,253 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:47:46,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 160 events. 8/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 141 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 118. Up to 2 conditions per place. [2022-12-05 20:47:46,260 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 160 transitions, 323 flow [2022-12-05 20:47:46,260 INFO L188 LiptonReduction]: Number of co-enabled transitions 6570 [2022-12-05 20:47:51,525 INFO L203 LiptonReduction]: Total number of compositions: 143 [2022-12-05 20:47:51,544 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:47:51,550 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4d1e1a3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:47:51,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-05 20:47:51,552 INFO L130 PetriNetUnfolder]: 1/11 cut-off events. [2022-12-05 20:47:51,553 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:47:51,553 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:51,553 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-05 20:47:51,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 20:47:51,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:51,557 INFO L85 PathProgramCache]: Analyzing trace with hash 19418430, now seen corresponding path program 1 times [2022-12-05 20:47:51,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:51,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799067558] [2022-12-05 20:47:51,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:51,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:47:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:47:51,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:47:51,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799067558] [2022-12-05 20:47:51,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799067558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:47:51,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:47:51,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:47:51,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364238761] [2022-12-05 20:47:51,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:47:51,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 20:47:51,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:47:51,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 20:47:51,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 20:47:51,684 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 36 [2022-12-05 20:47:51,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 36 transitions, 75 flow. Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:51,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:47:51,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 36 [2022-12-05 20:47:51,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:47:51,773 INFO L130 PetriNetUnfolder]: 157/375 cut-off events. [2022-12-05 20:47:51,773 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:47:51,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 375 events. 157/375 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1703 event pairs, 144 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 698. Up to 328 conditions per place. [2022-12-05 20:47:51,776 INFO L137 encePairwiseOnDemand]: 33/36 looper letters, 24 selfloop transitions, 0 changer transitions 4/33 dead transitions. [2022-12-05 20:47:51,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 123 flow [2022-12-05 20:47:51,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 20:47:51,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 20:47:51,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 42 transitions. [2022-12-05 20:47:51,783 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-05 20:47:51,784 INFO L175 Difference]: Start difference. First operand has 37 places, 36 transitions, 75 flow. Second operand 2 states and 42 transitions. [2022-12-05 20:47:51,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 123 flow [2022-12-05 20:47:51,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 33 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:47:51,787 INFO L231 Difference]: Finished difference. Result has 36 places, 29 transitions, 60 flow [2022-12-05 20:47:51,788 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=60, PETRI_PLACES=36, PETRI_TRANSITIONS=29} [2022-12-05 20:47:51,791 INFO L294 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2022-12-05 20:47:51,791 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 29 transitions, 60 flow [2022-12-05 20:47:51,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:51,791 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:51,791 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-05 20:47:51,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:47:51,792 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 20:47:51,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:51,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1480565624, now seen corresponding path program 1 times [2022-12-05 20:47:51,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:51,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718725937] [2022-12-05 20:47:51,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:51,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:47:51,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:47:51,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:47:51,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718725937] [2022-12-05 20:47:51,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718725937] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:47:51,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:47:51,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:47:51,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510000933] [2022-12-05 20:47:51,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:47:51,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:47:51,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:47:51,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:47:51,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:47:51,954 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 36 [2022-12-05 20:47:51,954 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 29 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:51,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:47:51,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 36 [2022-12-05 20:47:51,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:47:52,027 INFO L130 PetriNetUnfolder]: 117/319 cut-off events. [2022-12-05 20:47:52,027 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:47:52,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 601 conditions, 319 events. 117/319 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1396 event pairs, 12 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 598. Up to 152 conditions per place. [2022-12-05 20:47:52,029 INFO L137 encePairwiseOnDemand]: 29/36 looper letters, 38 selfloop transitions, 9 changer transitions 0/52 dead transitions. [2022-12-05 20:47:52,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 52 transitions, 200 flow [2022-12-05 20:47:52,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:47:52,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:47:52,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2022-12-05 20:47:52,031 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4388888888888889 [2022-12-05 20:47:52,031 INFO L175 Difference]: Start difference. First operand has 36 places, 29 transitions, 60 flow. Second operand 5 states and 79 transitions. [2022-12-05 20:47:52,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 52 transitions, 200 flow [2022-12-05 20:47:52,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 52 transitions, 200 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:47:52,033 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 109 flow [2022-12-05 20:47:52,033 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=109, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2022-12-05 20:47:52,033 INFO L294 CegarLoopForPetriNet]: 37 programPoint places, 3 predicate places. [2022-12-05 20:47:52,034 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 109 flow [2022-12-05 20:47:52,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:52,034 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:52,034 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:47:52,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:47:52,034 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 20:47:52,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:52,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1189397437, now seen corresponding path program 1 times [2022-12-05 20:47:52,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:52,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617098882] [2022-12-05 20:47:52,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:52,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:47:52,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:47:52,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:47:52,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617098882] [2022-12-05 20:47:52,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617098882] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:47:52,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:47:52,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:47:52,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181506055] [2022-12-05 20:47:52,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:47:52,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:47:52,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:47:52,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:47:52,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:47:52,222 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 36 [2022-12-05 20:47:52,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 109 flow. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:52,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:47:52,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 36 [2022-12-05 20:47:52,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:47:52,430 INFO L130 PetriNetUnfolder]: 124/335 cut-off events. [2022-12-05 20:47:52,430 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2022-12-05 20:47:52,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 757 conditions, 335 events. 124/335 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1577 event pairs, 28 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 750. Up to 120 conditions per place. [2022-12-05 20:47:52,432 INFO L137 encePairwiseOnDemand]: 26/36 looper letters, 54 selfloop transitions, 24 changer transitions 0/83 dead transitions. [2022-12-05 20:47:52,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 83 transitions, 395 flow [2022-12-05 20:47:52,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-05 20:47:52,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-05 20:47:52,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 153 transitions. [2022-12-05 20:47:52,434 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3541666666666667 [2022-12-05 20:47:52,434 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 109 flow. Second operand 12 states and 153 transitions. [2022-12-05 20:47:52,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 83 transitions, 395 flow [2022-12-05 20:47:52,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 83 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:47:52,437 INFO L231 Difference]: Finished difference. Result has 54 places, 48 transitions, 238 flow [2022-12-05 20:47:52,437 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=238, PETRI_PLACES=54, PETRI_TRANSITIONS=48} [2022-12-05 20:47:52,438 INFO L294 CegarLoopForPetriNet]: 37 programPoint places, 17 predicate places. [2022-12-05 20:47:52,438 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 48 transitions, 238 flow [2022-12-05 20:47:52,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:52,438 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:52,438 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:47:52,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:47:52,438 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 20:47:52,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:52,439 INFO L85 PathProgramCache]: Analyzing trace with hash 2046739018, now seen corresponding path program 1 times [2022-12-05 20:47:52,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:52,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476263130] [2022-12-05 20:47:52,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:52,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:47:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:47:52,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:47:52,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476263130] [2022-12-05 20:47:52,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476263130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:47:52,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:47:52,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:47:52,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319391292] [2022-12-05 20:47:52,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:47:52,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:47:52,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:47:52,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:47:52,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:47:52,487 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 36 [2022-12-05 20:47:52,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:52,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:47:52,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 36 [2022-12-05 20:47:52,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:47:52,547 INFO L130 PetriNetUnfolder]: 106/290 cut-off events. [2022-12-05 20:47:52,547 INFO L131 PetriNetUnfolder]: For 129/129 co-relation queries the response was YES. [2022-12-05 20:47:52,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 763 conditions, 290 events. 106/290 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1197 event pairs, 34 based on Foata normal form. 17/279 useless extension candidates. Maximal degree in co-relation 753. Up to 143 conditions per place. [2022-12-05 20:47:52,549 INFO L137 encePairwiseOnDemand]: 28/36 looper letters, 47 selfloop transitions, 9 changer transitions 2/60 dead transitions. [2022-12-05 20:47:52,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 60 transitions, 378 flow [2022-12-05 20:47:52,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:47:52,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:47:52,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2022-12-05 20:47:52,552 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2022-12-05 20:47:52,552 INFO L175 Difference]: Start difference. First operand has 54 places, 48 transitions, 238 flow. Second operand 3 states and 51 transitions. [2022-12-05 20:47:52,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 60 transitions, 378 flow [2022-12-05 20:47:52,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 60 transitions, 338 flow, removed 6 selfloop flow, removed 5 redundant places. [2022-12-05 20:47:52,555 INFO L231 Difference]: Finished difference. Result has 51 places, 44 transitions, 199 flow [2022-12-05 20:47:52,555 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=51, PETRI_TRANSITIONS=44} [2022-12-05 20:47:52,556 INFO L294 CegarLoopForPetriNet]: 37 programPoint places, 14 predicate places. [2022-12-05 20:47:52,556 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 199 flow [2022-12-05 20:47:52,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:52,556 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:52,556 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:47:52,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:47:52,556 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 20:47:52,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:52,557 INFO L85 PathProgramCache]: Analyzing trace with hash 549794251, now seen corresponding path program 1 times [2022-12-05 20:47:52,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:52,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400567285] [2022-12-05 20:47:52,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:52,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:47:52,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:47:52,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:47:52,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400567285] [2022-12-05 20:47:52,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400567285] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:47:52,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:47:52,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:47:52,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488029707] [2022-12-05 20:47:52,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:47:52,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:47:52,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:47:52,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:47:52,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:47:52,676 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 36 [2022-12-05 20:47:52,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 199 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:52,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:47:52,677 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 36 [2022-12-05 20:47:52,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:47:52,760 INFO L130 PetriNetUnfolder]: 95/273 cut-off events. [2022-12-05 20:47:52,761 INFO L131 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2022-12-05 20:47:52,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 273 events. 95/273 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1152 event pairs, 57 based on Foata normal form. 21/268 useless extension candidates. Maximal degree in co-relation 766. Up to 155 conditions per place. [2022-12-05 20:47:52,762 INFO L137 encePairwiseOnDemand]: 31/36 looper letters, 49 selfloop transitions, 6 changer transitions 9/68 dead transitions. [2022-12-05 20:47:52,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 409 flow [2022-12-05 20:47:52,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:47:52,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:47:52,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2022-12-05 20:47:52,763 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2022-12-05 20:47:52,763 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 199 flow. Second operand 4 states and 69 transitions. [2022-12-05 20:47:52,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 409 flow [2022-12-05 20:47:52,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 68 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:47:52,766 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 217 flow [2022-12-05 20:47:52,766 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=217, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2022-12-05 20:47:52,766 INFO L294 CegarLoopForPetriNet]: 37 programPoint places, 17 predicate places. [2022-12-05 20:47:52,766 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 217 flow [2022-12-05 20:47:52,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:52,767 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:52,767 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:47:52,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:47:52,767 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 20:47:52,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:52,767 INFO L85 PathProgramCache]: Analyzing trace with hash 783980274, now seen corresponding path program 1 times [2022-12-05 20:47:52,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:52,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626744561] [2022-12-05 20:47:52,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:52,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:47:52,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:47:52,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:47:52,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626744561] [2022-12-05 20:47:52,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626744561] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:47:52,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:47:52,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:47:52,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769476587] [2022-12-05 20:47:52,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:47:52,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:47:52,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:47:52,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:47:52,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:47:52,849 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 36 [2022-12-05 20:47:52,849 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 217 flow. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:52,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:47:52,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 36 [2022-12-05 20:47:52,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:47:52,945 INFO L130 PetriNetUnfolder]: 66/221 cut-off events. [2022-12-05 20:47:52,946 INFO L131 PetriNetUnfolder]: For 158/158 co-relation queries the response was YES. [2022-12-05 20:47:52,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 221 events. 66/221 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 943 event pairs, 31 based on Foata normal form. 1/210 useless extension candidates. Maximal degree in co-relation 649. Up to 129 conditions per place. [2022-12-05 20:47:52,947 INFO L137 encePairwiseOnDemand]: 29/36 looper letters, 38 selfloop transitions, 13 changer transitions 0/59 dead transitions. [2022-12-05 20:47:52,947 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 59 transitions, 379 flow [2022-12-05 20:47:52,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:47:52,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:47:52,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 72 transitions. [2022-12-05 20:47:52,948 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4 [2022-12-05 20:47:52,949 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 217 flow. Second operand 5 states and 72 transitions. [2022-12-05 20:47:52,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 59 transitions, 379 flow [2022-12-05 20:47:52,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 59 transitions, 365 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:47:52,952 INFO L231 Difference]: Finished difference. Result has 56 places, 46 transitions, 251 flow [2022-12-05 20:47:52,952 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=251, PETRI_PLACES=56, PETRI_TRANSITIONS=46} [2022-12-05 20:47:52,954 INFO L294 CegarLoopForPetriNet]: 37 programPoint places, 19 predicate places. [2022-12-05 20:47:52,954 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 251 flow [2022-12-05 20:47:52,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:52,954 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:52,954 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:47:52,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 20:47:52,954 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 20:47:52,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:52,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1763380923, now seen corresponding path program 1 times [2022-12-05 20:47:52,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:52,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139222429] [2022-12-05 20:47:52,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:52,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:47:53,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:47:53,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:47:53,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139222429] [2022-12-05 20:47:53,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139222429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:47:53,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:47:53,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:47:53,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069453566] [2022-12-05 20:47:53,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:47:53,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:47:53,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:47:53,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:47:53,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:47:53,053 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 36 [2022-12-05 20:47:53,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 46 transitions, 251 flow. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:53,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:47:53,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 36 [2022-12-05 20:47:53,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:47:53,158 INFO L130 PetriNetUnfolder]: 73/229 cut-off events. [2022-12-05 20:47:53,158 INFO L131 PetriNetUnfolder]: For 147/147 co-relation queries the response was YES. [2022-12-05 20:47:53,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 229 events. 73/229 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 956 event pairs, 42 based on Foata normal form. 8/231 useless extension candidates. Maximal degree in co-relation 713. Up to 136 conditions per place. [2022-12-05 20:47:53,159 INFO L137 encePairwiseOnDemand]: 27/36 looper letters, 44 selfloop transitions, 10 changer transitions 5/63 dead transitions. [2022-12-05 20:47:53,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 63 transitions, 427 flow [2022-12-05 20:47:53,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:47:53,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:47:53,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 83 transitions. [2022-12-05 20:47:53,160 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.32936507936507936 [2022-12-05 20:47:53,160 INFO L175 Difference]: Start difference. First operand has 56 places, 46 transitions, 251 flow. Second operand 7 states and 83 transitions. [2022-12-05 20:47:53,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 63 transitions, 427 flow [2022-12-05 20:47:53,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 63 transitions, 404 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-05 20:47:53,162 INFO L231 Difference]: Finished difference. Result has 61 places, 43 transitions, 243 flow [2022-12-05 20:47:53,162 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=243, PETRI_PLACES=61, PETRI_TRANSITIONS=43} [2022-12-05 20:47:53,163 INFO L294 CegarLoopForPetriNet]: 37 programPoint places, 24 predicate places. [2022-12-05 20:47:53,163 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 43 transitions, 243 flow [2022-12-05 20:47:53,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:53,163 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:53,163 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:47:53,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 20:47:53,163 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 20:47:53,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:53,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1785774263, now seen corresponding path program 1 times [2022-12-05 20:47:53,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:53,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421842335] [2022-12-05 20:47:53,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:53,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:47:53,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:47:53,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:47:53,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421842335] [2022-12-05 20:47:53,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421842335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:47:53,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:47:53,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:47:53,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382549834] [2022-12-05 20:47:53,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:47:53,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:47:53,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:47:53,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:47:53,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:47:53,269 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 36 [2022-12-05 20:47:53,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 43 transitions, 243 flow. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:53,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:47:53,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 36 [2022-12-05 20:47:53,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:47:53,316 INFO L130 PetriNetUnfolder]: 60/196 cut-off events. [2022-12-05 20:47:53,316 INFO L131 PetriNetUnfolder]: For 220/222 co-relation queries the response was YES. [2022-12-05 20:47:53,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 662 conditions, 196 events. 60/196 cut-off events. For 220/222 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 777 event pairs, 22 based on Foata normal form. 4/199 useless extension candidates. Maximal degree in co-relation 646. Up to 92 conditions per place. [2022-12-05 20:47:53,317 INFO L137 encePairwiseOnDemand]: 31/36 looper letters, 37 selfloop transitions, 8 changer transitions 3/54 dead transitions. [2022-12-05 20:47:53,317 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 54 transitions, 396 flow [2022-12-05 20:47:53,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:47:53,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:47:53,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2022-12-05 20:47:53,318 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2847222222222222 [2022-12-05 20:47:53,318 INFO L175 Difference]: Start difference. First operand has 61 places, 43 transitions, 243 flow. Second operand 4 states and 41 transitions. [2022-12-05 20:47:53,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 54 transitions, 396 flow [2022-12-05 20:47:53,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 388 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-05 20:47:53,320 INFO L231 Difference]: Finished difference. Result has 60 places, 41 transitions, 242 flow [2022-12-05 20:47:53,320 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=60, PETRI_TRANSITIONS=41} [2022-12-05 20:47:53,321 INFO L294 CegarLoopForPetriNet]: 37 programPoint places, 23 predicate places. [2022-12-05 20:47:53,321 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 41 transitions, 242 flow [2022-12-05 20:47:53,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:53,321 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:53,321 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:47:53,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 20:47:53,321 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 20:47:53,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:53,322 INFO L85 PathProgramCache]: Analyzing trace with hash -364550400, now seen corresponding path program 1 times [2022-12-05 20:47:53,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:53,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891154974] [2022-12-05 20:47:53,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:53,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:47:53,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:47:53,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:47:53,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891154974] [2022-12-05 20:47:53,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891154974] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:47:53,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:47:53,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:47:53,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203769165] [2022-12-05 20:47:53,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:47:53,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:47:53,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:47:53,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:47:53,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:47:53,423 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 36 [2022-12-05 20:47:53,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 41 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:53,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:47:53,423 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 36 [2022-12-05 20:47:53,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:47:53,504 INFO L130 PetriNetUnfolder]: 47/169 cut-off events. [2022-12-05 20:47:53,504 INFO L131 PetriNetUnfolder]: For 183/185 co-relation queries the response was YES. [2022-12-05 20:47:53,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 169 events. 47/169 cut-off events. For 183/185 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 615 event pairs, 9 based on Foata normal form. 6/174 useless extension candidates. Maximal degree in co-relation 562. Up to 58 conditions per place. [2022-12-05 20:47:53,505 INFO L137 encePairwiseOnDemand]: 30/36 looper letters, 34 selfloop transitions, 8 changer transitions 2/54 dead transitions. [2022-12-05 20:47:53,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 54 transitions, 388 flow [2022-12-05 20:47:53,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 20:47:53,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 20:47:53,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 87 transitions. [2022-12-05 20:47:53,506 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3020833333333333 [2022-12-05 20:47:53,506 INFO L175 Difference]: Start difference. First operand has 60 places, 41 transitions, 242 flow. Second operand 8 states and 87 transitions. [2022-12-05 20:47:53,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 54 transitions, 388 flow [2022-12-05 20:47:53,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 372 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 20:47:53,508 INFO L231 Difference]: Finished difference. Result has 61 places, 40 transitions, 238 flow [2022-12-05 20:47:53,508 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=238, PETRI_PLACES=61, PETRI_TRANSITIONS=40} [2022-12-05 20:47:53,508 INFO L294 CegarLoopForPetriNet]: 37 programPoint places, 24 predicate places. [2022-12-05 20:47:53,508 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 40 transitions, 238 flow [2022-12-05 20:47:53,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:53,509 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:53,509 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:47:53,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 20:47:53,509 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 20:47:53,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:53,509 INFO L85 PathProgramCache]: Analyzing trace with hash 2125322613, now seen corresponding path program 1 times [2022-12-05 20:47:53,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:53,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246780785] [2022-12-05 20:47:53,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:53,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:47:53,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:47:53,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:47:53,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246780785] [2022-12-05 20:47:53,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246780785] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:47:53,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:47:53,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 20:47:53,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898163559] [2022-12-05 20:47:53,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:47:53,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 20:47:53,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:47:53,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 20:47:53,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-05 20:47:53,627 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 36 [2022-12-05 20:47:53,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 40 transitions, 238 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:53,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:47:53,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 36 [2022-12-05 20:47:53,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:47:53,819 INFO L130 PetriNetUnfolder]: 43/159 cut-off events. [2022-12-05 20:47:53,819 INFO L131 PetriNetUnfolder]: For 210/212 co-relation queries the response was YES. [2022-12-05 20:47:53,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 159 events. 43/159 cut-off events. For 210/212 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 551 event pairs, 7 based on Foata normal form. 6/164 useless extension candidates. Maximal degree in co-relation 534. Up to 42 conditions per place. [2022-12-05 20:47:53,820 INFO L137 encePairwiseOnDemand]: 28/36 looper letters, 32 selfloop transitions, 13 changer transitions 8/63 dead transitions. [2022-12-05 20:47:53,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 63 transitions, 438 flow [2022-12-05 20:47:53,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-05 20:47:53,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-05 20:47:53,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 131 transitions. [2022-12-05 20:47:53,822 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.25992063492063494 [2022-12-05 20:47:53,822 INFO L175 Difference]: Start difference. First operand has 61 places, 40 transitions, 238 flow. Second operand 14 states and 131 transitions. [2022-12-05 20:47:53,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 63 transitions, 438 flow [2022-12-05 20:47:53,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 410 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-12-05 20:47:53,823 INFO L231 Difference]: Finished difference. Result has 65 places, 39 transitions, 233 flow [2022-12-05 20:47:53,824 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=233, PETRI_PLACES=65, PETRI_TRANSITIONS=39} [2022-12-05 20:47:53,824 INFO L294 CegarLoopForPetriNet]: 37 programPoint places, 28 predicate places. [2022-12-05 20:47:53,824 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 39 transitions, 233 flow [2022-12-05 20:47:53,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:53,824 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:53,825 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:47:53,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 20:47:53,825 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-05 20:47:53,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:53,825 INFO L85 PathProgramCache]: Analyzing trace with hash -718184509, now seen corresponding path program 1 times [2022-12-05 20:47:53,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:53,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944787920] [2022-12-05 20:47:53,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:53,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:47:53,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:47:53,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:47:53,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944787920] [2022-12-05 20:47:53,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944787920] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:47:53,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:47:53,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:47:53,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399786060] [2022-12-05 20:47:53,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:47:53,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:47:53,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:47:53,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:47:53,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:47:53,960 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 36 [2022-12-05 20:47:53,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 39 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:53,960 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:47:53,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 36 [2022-12-05 20:47:53,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:47:54,000 INFO L130 PetriNetUnfolder]: 24/107 cut-off events. [2022-12-05 20:47:54,000 INFO L131 PetriNetUnfolder]: For 117/117 co-relation queries the response was YES. [2022-12-05 20:47:54,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 107 events. 24/107 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 313 event pairs, 10 based on Foata normal form. 15/122 useless extension candidates. Maximal degree in co-relation 385. Up to 91 conditions per place. [2022-12-05 20:47:54,001 INFO L137 encePairwiseOnDemand]: 32/36 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2022-12-05 20:47:54,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 44 transitions, 325 flow [2022-12-05 20:47:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:47:54,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:47:54,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2022-12-05 20:47:54,002 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2708333333333333 [2022-12-05 20:47:54,002 INFO L175 Difference]: Start difference. First operand has 65 places, 39 transitions, 233 flow. Second operand 4 states and 39 transitions. [2022-12-05 20:47:54,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 44 transitions, 325 flow [2022-12-05 20:47:54,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 44 transitions, 296 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-12-05 20:47:54,003 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2022-12-05 20:47:54,003 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2022-12-05 20:47:54,003 INFO L294 CegarLoopForPetriNet]: 37 programPoint places, 20 predicate places. [2022-12-05 20:47:54,003 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2022-12-05 20:47:54,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:54,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-12-05 20:47:54,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-05 20:47:54,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-12-05 20:47:54,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-12-05 20:47:54,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-12-05 20:47:54,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-05 20:47:54,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-05 20:47:54,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-05 20:47:54,006 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:47:54,009 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:47:54,009 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:47:54,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:47:54 BasicIcfg [2022-12-05 20:47:54,011 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:47:54,011 INFO L158 Benchmark]: Toolchain (without parser) took 8924.50ms. Allocated memory was 210.8MB in the beginning and 358.6MB in the end (delta: 147.8MB). Free memory was 167.4MB in the beginning and 157.2MB in the end (delta: 10.3MB). Peak memory consumption was 158.6MB. Max. memory is 8.0GB. [2022-12-05 20:47:54,011 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 210.8MB. Free memory is still 187.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:47:54,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.20ms. Allocated memory is still 210.8MB. Free memory was 167.4MB in the beginning and 147.0MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-05 20:47:54,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.33ms. Allocated memory is still 210.8MB. Free memory was 147.0MB in the beginning and 144.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:47:54,012 INFO L158 Benchmark]: Boogie Preprocessor took 24.14ms. Allocated memory is still 210.8MB. Free memory was 144.9MB in the beginning and 143.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 20:47:54,012 INFO L158 Benchmark]: RCFGBuilder took 427.07ms. Allocated memory is still 210.8MB. Free memory was 143.3MB in the beginning and 125.5MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-12-05 20:47:54,012 INFO L158 Benchmark]: TraceAbstraction took 8076.82ms. Allocated memory was 210.8MB in the beginning and 358.6MB in the end (delta: 147.8MB). Free memory was 125.0MB in the beginning and 157.2MB in the end (delta: -32.2MB). Peak memory consumption was 116.7MB. Max. memory is 8.0GB. [2022-12-05 20:47:54,013 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 210.8MB. Free memory is still 187.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 361.20ms. Allocated memory is still 210.8MB. Free memory was 167.4MB in the beginning and 147.0MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.33ms. Allocated memory is still 210.8MB. Free memory was 147.0MB in the beginning and 144.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.14ms. Allocated memory is still 210.8MB. Free memory was 144.9MB in the beginning and 143.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 427.07ms. Allocated memory is still 210.8MB. Free memory was 143.3MB in the beginning and 125.5MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 8076.82ms. Allocated memory was 210.8MB in the beginning and 358.6MB in the end (delta: 147.8MB). Free memory was 125.0MB in the beginning and 157.2MB in the end (delta: -32.2MB). Peak memory consumption was 116.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 156 PlacesBefore, 37 PlacesAfterwards, 160 TransitionsBefore, 36 TransitionsAfterwards, 6570 CoEnabledTransitionPairs, 5 FixpointIterations, 0 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 40 TrivialYvCompositions, 84 ConcurrentYvCompositions, 6 ChoiceCompositions, 143 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6156, independent: 5897, independent conditional: 5897, independent unconditional: 0, dependent: 259, dependent conditional: 259, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6156, independent: 5897, independent conditional: 0, independent unconditional: 5897, dependent: 259, dependent conditional: 0, dependent unconditional: 259, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6156, independent: 5897, independent conditional: 0, independent unconditional: 5897, dependent: 259, dependent conditional: 0, dependent unconditional: 259, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6156, independent: 5897, independent conditional: 0, independent unconditional: 5897, dependent: 259, dependent conditional: 0, dependent unconditional: 259, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4545, independent: 4468, independent conditional: 0, independent unconditional: 4468, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4545, independent: 4336, independent conditional: 0, independent unconditional: 4336, dependent: 209, dependent conditional: 0, dependent unconditional: 209, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 209, independent: 132, independent conditional: 0, independent unconditional: 132, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 197, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6156, independent: 1429, independent conditional: 0, independent unconditional: 1429, dependent: 182, dependent conditional: 0, dependent unconditional: 182, unknown: 4545, unknown conditional: 0, unknown unconditional: 4545] , Statistics on independence cache: Total cache size (in pairs): 9733, Positive cache size: 9656, Positive conditional cache size: 0, Positive unconditional cache size: 9656, Negative cache size: 77, Negative conditional cache size: 0, Negative unconditional cache size: 77, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 3 procedures, 223 locations, 7 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: 7.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 380 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 380 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1016 IncrementalHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 12 mSDtfsCounter, 1016 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=6, InterpolantAutomatonStates: 68, 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, 1.0s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 638 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 20:47:54,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...