/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 11:50:02,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 11:50:02,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 11:50:02,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 11:50:02,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 11:50:02,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 11:50:02,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 11:50:02,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 11:50:02,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 11:50:02,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 11:50:02,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 11:50:02,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 11:50:02,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 11:50:02,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 11:50:02,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 11:50:02,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 11:50:02,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 11:50:02,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 11:50:02,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 11:50:02,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 11:50:02,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 11:50:02,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 11:50:02,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 11:50:02,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 11:50:02,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 11:50:02,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 11:50:02,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 11:50:02,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 11:50:02,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 11:50:02,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 11:50:02,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 11:50:02,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 11:50:02,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 11:50:02,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 11:50:02,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 11:50:02,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 11:50:02,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 11:50:02,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 11:50:02,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 11:50:02,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 11:50:02,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 11:50:02,540 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 11:50:02,567 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 11:50:02,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 11:50:02,568 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 11:50:02,569 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 11:50:02,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 11:50:02,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 11:50:02,570 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 11:50:02,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 11:50:02,570 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 11:50:02,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 11:50:02,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 11:50:02,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 11:50:02,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 11:50:02,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 11:50:02,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 11:50:02,571 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 11:50:02,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 11:50:02,571 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 11:50:02,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 11:50:02,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 11:50:02,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 11:50:02,572 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 11:50:02,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 11:50:02,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 11:50:02,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 11:50:02,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 11:50:02,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 11:50:02,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 11:50:02,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 11:50:02,573 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 11:50:02,573 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 11:50:02,574 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 11:50:02,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 11:50:02,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 11:50:02,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 11:50:02,813 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 11:50:02,814 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 11:50:02,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c [2023-01-28 11:50:04,058 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 11:50:04,220 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 11:50:04,221 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c [2023-01-28 11:50:04,226 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee48e1c08/7aee4bfbce5640448b62d4f9d8743bb3/FLAGc4e09e78b [2023-01-28 11:50:04,246 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee48e1c08/7aee4bfbce5640448b62d4f9d8743bb3 [2023-01-28 11:50:04,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 11:50:04,250 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 11:50:04,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 11:50:04,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 11:50:04,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 11:50:04,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 11:50:04" (1/1) ... [2023-01-28 11:50:04,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be7974f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:50:04, skipping insertion in model container [2023-01-28 11:50:04,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 11:50:04" (1/1) ... [2023-01-28 11:50:04,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 11:50:04,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 11:50:04,468 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c[2815,2828] [2023-01-28 11:50:04,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 11:50:04,492 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 11:50:04,527 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c[2815,2828] [2023-01-28 11:50:04,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 11:50:04,536 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 11:50:04,537 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 11:50:04,542 INFO L208 MainTranslator]: Completed translation [2023-01-28 11:50:04,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:50:04 WrapperNode [2023-01-28 11:50:04,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 11:50:04,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 11:50:04,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 11:50:04,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 11:50:04,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:50:04" (1/1) ... [2023-01-28 11:50:04,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:50:04" (1/1) ... [2023-01-28 11:50:04,603 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 236 [2023-01-28 11:50:04,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 11:50:04,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 11:50:04,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 11:50:04,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 11:50:04,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:50:04" (1/1) ... [2023-01-28 11:50:04,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:50:04" (1/1) ... [2023-01-28 11:50:04,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:50:04" (1/1) ... [2023-01-28 11:50:04,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:50:04" (1/1) ... [2023-01-28 11:50:04,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:50:04" (1/1) ... [2023-01-28 11:50:04,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:50:04" (1/1) ... [2023-01-28 11:50:04,653 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:50:04" (1/1) ... [2023-01-28 11:50:04,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:50:04" (1/1) ... [2023-01-28 11:50:04,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 11:50:04,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 11:50:04,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 11:50:04,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 11:50:04,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:50:04" (1/1) ... [2023-01-28 11:50:04,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 11:50:04,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:50:04,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 11:50:04,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 11:50:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 11:50:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 11:50:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 11:50:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 11:50:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 11:50:04,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 11:50:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 11:50:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 11:50:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-28 11:50:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-28 11:50:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 11:50:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 11:50:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 11:50:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 11:50:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 11:50:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 11:50:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 11:50:04,736 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 11:50:04,820 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 11:50:04,822 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 11:50:05,256 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 11:50:05,353 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 11:50:05,353 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-01-28 11:50:05,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 11:50:05 BoogieIcfgContainer [2023-01-28 11:50:05,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 11:50:05,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 11:50:05,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 11:50:05,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 11:50:05,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 11:50:04" (1/3) ... [2023-01-28 11:50:05,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52940e1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 11:50:05, skipping insertion in model container [2023-01-28 11:50:05,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:50:04" (2/3) ... [2023-01-28 11:50:05,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52940e1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 11:50:05, skipping insertion in model container [2023-01-28 11:50:05,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 11:50:05" (3/3) ... [2023-01-28 11:50:05,361 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2023-01-28 11:50:05,375 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 11:50:05,375 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 11:50:05,375 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 11:50:05,433 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-28 11:50:05,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 267 places, 284 transitions, 592 flow [2023-01-28 11:50:05,569 INFO L130 PetriNetUnfolder]: 27/281 cut-off events. [2023-01-28 11:50:05,569 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 11:50:05,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 281 events. 27/281 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 209 event pairs, 0 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 222. Up to 3 conditions per place. [2023-01-28 11:50:05,574 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 284 transitions, 592 flow [2023-01-28 11:50:05,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 271 transitions, 560 flow [2023-01-28 11:50:05,582 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 11:50:05,589 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 271 transitions, 560 flow [2023-01-28 11:50:05,591 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 271 transitions, 560 flow [2023-01-28 11:50:05,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 271 transitions, 560 flow [2023-01-28 11:50:05,631 INFO L130 PetriNetUnfolder]: 27/271 cut-off events. [2023-01-28 11:50:05,631 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 11:50:05,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 271 events. 27/271 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 208 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 222. Up to 3 conditions per place. [2023-01-28 11:50:05,635 INFO L119 LiptonReduction]: Number of co-enabled transitions 2634 [2023-01-28 11:50:13,537 INFO L134 LiptonReduction]: Checked pairs total: 3780 [2023-01-28 11:50:13,537 INFO L136 LiptonReduction]: Total number of compositions: 300 [2023-01-28 11:50:13,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 11:50:13,554 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;@4be2eb31, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 11:50:13,554 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 11:50:13,560 INFO L130 PetriNetUnfolder]: 8/33 cut-off events. [2023-01-28 11:50:13,560 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 11:50:13,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:50:13,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 11:50:13,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:50:13,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:50:13,565 INFO L85 PathProgramCache]: Analyzing trace with hash -823952724, now seen corresponding path program 1 times [2023-01-28 11:50:13,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:50:13,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524313462] [2023-01-28 11:50:13,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:50:13,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:50:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:50:14,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 11:50:14,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:50:14,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524313462] [2023-01-28 11:50:14,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524313462] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 11:50:14,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 11:50:14,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 11:50:14,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633498816] [2023-01-28 11:50:14,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 11:50:14,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 11:50:14,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:50:14,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 11:50:14,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 11:50:14,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 584 [2023-01-28 11:50:14,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:14,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:50:14,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 584 [2023-01-28 11:50:14,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:50:14,298 INFO L130 PetriNetUnfolder]: 692/923 cut-off events. [2023-01-28 11:50:14,298 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2023-01-28 11:50:14,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1902 conditions, 923 events. 692/923 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3152 event pairs, 315 based on Foata normal form. 0/537 useless extension candidates. Maximal degree in co-relation 1616. Up to 907 conditions per place. [2023-01-28 11:50:14,307 INFO L137 encePairwiseOnDemand]: 581/584 looper letters, 30 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2023-01-28 11:50:14,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 152 flow [2023-01-28 11:50:14,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 11:50:14,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 11:50:14,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2023-01-28 11:50:14,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3818493150684932 [2023-01-28 11:50:14,322 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 669 transitions. [2023-01-28 11:50:14,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 669 transitions. [2023-01-28 11:50:14,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:50:14,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 669 transitions. [2023-01-28 11:50:14,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:14,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 584.0) internal successors, (2336), 4 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:14,337 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 584.0) internal successors, (2336), 4 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:14,338 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 86 flow. Second operand 3 states and 669 transitions. [2023-01-28 11:50:14,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 152 flow [2023-01-28 11:50:14,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 35 transitions, 140 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-01-28 11:50:14,344 INFO L231 Difference]: Finished difference. Result has 33 places, 35 transitions, 86 flow [2023-01-28 11:50:14,345 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=33, PETRI_TRANSITIONS=35} [2023-01-28 11:50:14,348 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-01-28 11:50:14,348 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 35 transitions, 86 flow [2023-01-28 11:50:14,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:14,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:50:14,349 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 11:50:14,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 11:50:14,349 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:50:14,350 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:50:14,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1618956068, now seen corresponding path program 1 times [2023-01-28 11:50:14,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:50:14,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381035224] [2023-01-28 11:50:14,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:50:14,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:50:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:50:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 11:50:14,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:50:14,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381035224] [2023-01-28 11:50:14,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381035224] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 11:50:14,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 11:50:14,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 11:50:14,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345552477] [2023-01-28 11:50:14,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 11:50:14,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 11:50:14,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:50:14,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 11:50:14,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-28 11:50:14,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 584 [2023-01-28 11:50:14,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 35 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:14,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:50:14,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 584 [2023-01-28 11:50:14,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:50:14,678 INFO L130 PetriNetUnfolder]: 692/925 cut-off events. [2023-01-28 11:50:14,678 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 11:50:14,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1868 conditions, 925 events. 692/925 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3119 event pairs, 315 based on Foata normal form. 0/539 useless extension candidates. Maximal degree in co-relation 1857. Up to 906 conditions per place. [2023-01-28 11:50:14,684 INFO L137 encePairwiseOnDemand]: 577/584 looper letters, 28 selfloop transitions, 6 changer transitions 0/37 dead transitions. [2023-01-28 11:50:14,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 158 flow [2023-01-28 11:50:14,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 11:50:14,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 11:50:14,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 884 transitions. [2023-01-28 11:50:14,687 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3784246575342466 [2023-01-28 11:50:14,687 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 884 transitions. [2023-01-28 11:50:14,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 884 transitions. [2023-01-28 11:50:14,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:50:14,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 884 transitions. [2023-01-28 11:50:14,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:14,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 584.0) internal successors, (2920), 5 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:14,695 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 584.0) internal successors, (2920), 5 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:14,695 INFO L175 Difference]: Start difference. First operand has 33 places, 35 transitions, 86 flow. Second operand 4 states and 884 transitions. [2023-01-28 11:50:14,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 158 flow [2023-01-28 11:50:14,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 154 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 11:50:14,698 INFO L231 Difference]: Finished difference. Result has 36 places, 37 transitions, 110 flow [2023-01-28 11:50:14,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=36, PETRI_TRANSITIONS=37} [2023-01-28 11:50:14,699 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 0 predicate places. [2023-01-28 11:50:14,699 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 110 flow [2023-01-28 11:50:14,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:14,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:50:14,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 11:50:14,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 11:50:14,700 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:50:14,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:50:14,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1120690575, now seen corresponding path program 1 times [2023-01-28 11:50:14,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:50:14,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825155077] [2023-01-28 11:50:14,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:50:14,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:50:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:50:14,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 11:50:14,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:50:14,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825155077] [2023-01-28 11:50:14,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825155077] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 11:50:14,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 11:50:14,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 11:50:14,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087896090] [2023-01-28 11:50:14,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 11:50:14,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 11:50:14,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:50:14,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 11:50:14,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 11:50:14,996 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 584 [2023-01-28 11:50:14,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:14,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:50:14,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 584 [2023-01-28 11:50:14,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:50:15,189 INFO L130 PetriNetUnfolder]: 1277/1690 cut-off events. [2023-01-28 11:50:15,190 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2023-01-28 11:50:15,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3427 conditions, 1690 events. 1277/1690 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6505 event pairs, 264 based on Foata normal form. 1/1003 useless extension candidates. Maximal degree in co-relation 3407. Up to 1016 conditions per place. [2023-01-28 11:50:15,199 INFO L137 encePairwiseOnDemand]: 579/584 looper letters, 51 selfloop transitions, 4 changer transitions 1/59 dead transitions. [2023-01-28 11:50:15,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 59 transitions, 271 flow [2023-01-28 11:50:15,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 11:50:15,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 11:50:15,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 783 transitions. [2023-01-28 11:50:15,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4469178082191781 [2023-01-28 11:50:15,201 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 783 transitions. [2023-01-28 11:50:15,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 783 transitions. [2023-01-28 11:50:15,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:50:15,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 783 transitions. [2023-01-28 11:50:15,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:15,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 584.0) internal successors, (2336), 4 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:15,207 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 584.0) internal successors, (2336), 4 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:15,207 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 110 flow. Second operand 3 states and 783 transitions. [2023-01-28 11:50:15,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 59 transitions, 271 flow [2023-01-28 11:50:15,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 59 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 11:50:15,210 INFO L231 Difference]: Finished difference. Result has 38 places, 40 transitions, 135 flow [2023-01-28 11:50:15,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=38, PETRI_TRANSITIONS=40} [2023-01-28 11:50:15,211 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2023-01-28 11:50:15,213 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 40 transitions, 135 flow [2023-01-28 11:50:15,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:15,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:50:15,214 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 11:50:15,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 11:50:15,214 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:50:15,215 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:50:15,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1651521349, now seen corresponding path program 1 times [2023-01-28 11:50:15,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:50:15,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78079503] [2023-01-28 11:50:15,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:50:15,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:50:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:50:15,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 11:50:15,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:50:15,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78079503] [2023-01-28 11:50:15,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78079503] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 11:50:15,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588703459] [2023-01-28 11:50:15,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:50:15,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:50:15,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:50:15,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 11:50:15,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 11:50:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:50:15,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-28 11:50:15,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 11:50:15,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 11:50:15,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 11:50:15,667 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 11:50:15,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588703459] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 11:50:15,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 11:50:15,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-01-28 11:50:15,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749069179] [2023-01-28 11:50:15,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 11:50:15,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-01-28 11:50:15,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:50:15,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-01-28 11:50:15,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-01-28 11:50:15,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 584 [2023-01-28 11:50:15,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 40 transitions, 135 flow. Second operand has 12 states, 12 states have (on average 210.91666666666666) internal successors, (2531), 12 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:15,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:50:15,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 584 [2023-01-28 11:50:15,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:50:16,155 INFO L130 PetriNetUnfolder]: 1914/2647 cut-off events. [2023-01-28 11:50:16,155 INFO L131 PetriNetUnfolder]: For 239/239 co-relation queries the response was YES. [2023-01-28 11:50:16,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5875 conditions, 2647 events. 1914/2647 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 11676 event pairs, 666 based on Foata normal form. 0/1807 useless extension candidates. Maximal degree in co-relation 3542. Up to 1262 conditions per place. [2023-01-28 11:50:16,168 INFO L137 encePairwiseOnDemand]: 573/584 looper letters, 87 selfloop transitions, 17 changer transitions 0/106 dead transitions. [2023-01-28 11:50:16,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 106 transitions, 548 flow [2023-01-28 11:50:16,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 11:50:16,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 11:50:16,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1761 transitions. [2023-01-28 11:50:16,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3769263698630137 [2023-01-28 11:50:16,173 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1761 transitions. [2023-01-28 11:50:16,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1761 transitions. [2023-01-28 11:50:16,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:50:16,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1761 transitions. [2023-01-28 11:50:16,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 220.125) internal successors, (1761), 8 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:16,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 584.0) internal successors, (5256), 9 states have internal predecessors, (5256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:16,186 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 584.0) internal successors, (5256), 9 states have internal predecessors, (5256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:16,186 INFO L175 Difference]: Start difference. First operand has 38 places, 40 transitions, 135 flow. Second operand 8 states and 1761 transitions. [2023-01-28 11:50:16,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 106 transitions, 548 flow [2023-01-28 11:50:16,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 106 transitions, 538 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 11:50:16,189 INFO L231 Difference]: Finished difference. Result has 48 places, 51 transitions, 250 flow [2023-01-28 11:50:16,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=250, PETRI_PLACES=48, PETRI_TRANSITIONS=51} [2023-01-28 11:50:16,190 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 12 predicate places. [2023-01-28 11:50:16,190 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 51 transitions, 250 flow [2023-01-28 11:50:16,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 210.91666666666666) internal successors, (2531), 12 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:16,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:50:16,192 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 11:50:16,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-28 11:50:16,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:50:16,398 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:50:16,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:50:16,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1450108102, now seen corresponding path program 1 times [2023-01-28 11:50:16,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:50:16,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078613395] [2023-01-28 11:50:16,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:50:16,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:50:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:50:16,572 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 11:50:16,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:50:16,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078613395] [2023-01-28 11:50:16,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078613395] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 11:50:16,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399462936] [2023-01-28 11:50:16,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:50:16,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:50:16,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:50:16,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 11:50:16,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 11:50:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:50:16,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-28 11:50:16,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 11:50:16,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 11:50:16,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 11:50:16,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 11:50:16,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399462936] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 11:50:16,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 11:50:16,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-01-28 11:50:16,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864138330] [2023-01-28 11:50:16,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 11:50:16,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-01-28 11:50:16,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:50:16,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-01-28 11:50:16,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-01-28 11:50:16,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 584 [2023-01-28 11:50:16,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 51 transitions, 250 flow. Second operand has 12 states, 12 states have (on average 208.0) internal successors, (2496), 12 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:16,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:50:16,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 584 [2023-01-28 11:50:16,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:50:17,178 INFO L130 PetriNetUnfolder]: 1361/1892 cut-off events. [2023-01-28 11:50:17,178 INFO L131 PetriNetUnfolder]: For 315/337 co-relation queries the response was YES. [2023-01-28 11:50:17,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4626 conditions, 1892 events. 1361/1892 cut-off events. For 315/337 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 7843 event pairs, 473 based on Foata normal form. 22/1379 useless extension candidates. Maximal degree in co-relation 4091. Up to 1170 conditions per place. [2023-01-28 11:50:17,191 INFO L137 encePairwiseOnDemand]: 574/584 looper letters, 43 selfloop transitions, 10 changer transitions 34/89 dead transitions. [2023-01-28 11:50:17,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 89 transitions, 533 flow [2023-01-28 11:50:17,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 11:50:17,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 11:50:17,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1723 transitions. [2023-01-28 11:50:17,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3687928082191781 [2023-01-28 11:50:17,196 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1723 transitions. [2023-01-28 11:50:17,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1723 transitions. [2023-01-28 11:50:17,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:50:17,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1723 transitions. [2023-01-28 11:50:17,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 215.375) internal successors, (1723), 8 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:17,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 584.0) internal successors, (5256), 9 states have internal predecessors, (5256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:17,209 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 584.0) internal successors, (5256), 9 states have internal predecessors, (5256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:17,209 INFO L175 Difference]: Start difference. First operand has 48 places, 51 transitions, 250 flow. Second operand 8 states and 1723 transitions. [2023-01-28 11:50:17,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 89 transitions, 533 flow [2023-01-28 11:50:17,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 89 transitions, 512 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-01-28 11:50:17,216 INFO L231 Difference]: Finished difference. Result has 56 places, 43 transitions, 202 flow [2023-01-28 11:50:17,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=202, PETRI_PLACES=56, PETRI_TRANSITIONS=43} [2023-01-28 11:50:17,219 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 20 predicate places. [2023-01-28 11:50:17,221 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 43 transitions, 202 flow [2023-01-28 11:50:17,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 208.0) internal successors, (2496), 12 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:17,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:50:17,222 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 11:50:17,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-28 11:50:17,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:50:17,431 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:50:17,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:50:17,432 INFO L85 PathProgramCache]: Analyzing trace with hash 552953634, now seen corresponding path program 2 times [2023-01-28 11:50:17,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:50:17,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865058594] [2023-01-28 11:50:17,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:50:17,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:50:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:50:17,575 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-28 11:50:17,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:50:17,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865058594] [2023-01-28 11:50:17,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865058594] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 11:50:17,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990044168] [2023-01-28 11:50:17,575 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 11:50:17,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:50:17,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:50:17,577 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 11:50:17,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 11:50:17,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 11:50:17,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 11:50:17,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-28 11:50:17,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 11:50:17,773 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-28 11:50:17,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 11:50:17,828 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-28 11:50:17,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990044168] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-28 11:50:17,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-28 11:50:17,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2023-01-28 11:50:17,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740054531] [2023-01-28 11:50:17,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 11:50:17,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 11:50:17,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:50:17,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 11:50:17,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-01-28 11:50:17,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 584 [2023-01-28 11:50:17,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 43 transitions, 202 flow. Second operand has 6 states, 6 states have (on average 213.33333333333334) internal successors, (1280), 6 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:17,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:50:17,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 584 [2023-01-28 11:50:17,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:50:18,059 INFO L130 PetriNetUnfolder]: 1547/2085 cut-off events. [2023-01-28 11:50:18,059 INFO L131 PetriNetUnfolder]: For 672/672 co-relation queries the response was YES. [2023-01-28 11:50:18,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5551 conditions, 2085 events. 1547/2085 cut-off events. For 672/672 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 8216 event pairs, 465 based on Foata normal form. 0/1677 useless extension candidates. Maximal degree in co-relation 5511. Up to 1568 conditions per place. [2023-01-28 11:50:18,071 INFO L137 encePairwiseOnDemand]: 579/584 looper letters, 55 selfloop transitions, 5 changer transitions 0/62 dead transitions. [2023-01-28 11:50:18,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 62 transitions, 385 flow [2023-01-28 11:50:18,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 11:50:18,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 11:50:18,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1305 transitions. [2023-01-28 11:50:18,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3724315068493151 [2023-01-28 11:50:18,075 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1305 transitions. [2023-01-28 11:50:18,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1305 transitions. [2023-01-28 11:50:18,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:50:18,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1305 transitions. [2023-01-28 11:50:18,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 217.5) internal successors, (1305), 6 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:18,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:18,083 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:18,083 INFO L175 Difference]: Start difference. First operand has 56 places, 43 transitions, 202 flow. Second operand 6 states and 1305 transitions. [2023-01-28 11:50:18,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 62 transitions, 385 flow [2023-01-28 11:50:18,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 62 transitions, 349 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-01-28 11:50:18,092 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 191 flow [2023-01-28 11:50:18,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=191, PETRI_PLACES=49, PETRI_TRANSITIONS=44} [2023-01-28 11:50:18,093 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 13 predicate places. [2023-01-28 11:50:18,093 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 191 flow [2023-01-28 11:50:18,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 213.33333333333334) internal successors, (1280), 6 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:18,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:50:18,094 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 11:50:18,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 11:50:18,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:50:18,304 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:50:18,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:50:18,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1297932992, now seen corresponding path program 1 times [2023-01-28 11:50:18,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:50:18,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526798971] [2023-01-28 11:50:18,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:50:18,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:50:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:50:18,520 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-28 11:50:18,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:50:18,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526798971] [2023-01-28 11:50:18,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526798971] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 11:50:18,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90734091] [2023-01-28 11:50:18,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:50:18,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:50:18,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:50:18,522 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 11:50:18,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-28 11:50:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:50:18,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-28 11:50:18,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 11:50:18,699 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-28 11:50:18,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 11:50:18,744 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-28 11:50:18,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90734091] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-28 11:50:18,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-28 11:50:18,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2023-01-28 11:50:18,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444513544] [2023-01-28 11:50:18,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 11:50:18,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 11:50:18,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:50:18,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 11:50:18,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-01-28 11:50:18,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 584 [2023-01-28 11:50:18,748 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 44 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 209.5) internal successors, (1257), 6 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:18,748 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:50:18,748 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 584 [2023-01-28 11:50:18,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:50:18,961 INFO L130 PetriNetUnfolder]: 1146/1548 cut-off events. [2023-01-28 11:50:18,962 INFO L131 PetriNetUnfolder]: For 488/601 co-relation queries the response was YES. [2023-01-28 11:50:18,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4033 conditions, 1548 events. 1146/1548 cut-off events. For 488/601 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5768 event pairs, 281 based on Foata normal form. 163/1370 useless extension candidates. Maximal degree in co-relation 3997. Up to 1015 conditions per place. [2023-01-28 11:50:18,972 INFO L137 encePairwiseOnDemand]: 578/584 looper letters, 49 selfloop transitions, 7 changer transitions 0/58 dead transitions. [2023-01-28 11:50:18,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 58 transitions, 346 flow [2023-01-28 11:50:18,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 11:50:18,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 11:50:18,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1277 transitions. [2023-01-28 11:50:18,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3644406392694064 [2023-01-28 11:50:18,976 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1277 transitions. [2023-01-28 11:50:18,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1277 transitions. [2023-01-28 11:50:18,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:50:18,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1277 transitions. [2023-01-28 11:50:18,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 212.83333333333334) internal successors, (1277), 6 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:18,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:18,984 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:18,984 INFO L175 Difference]: Start difference. First operand has 49 places, 44 transitions, 191 flow. Second operand 6 states and 1277 transitions. [2023-01-28 11:50:18,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 58 transitions, 346 flow [2023-01-28 11:50:18,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 58 transitions, 331 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-01-28 11:50:18,988 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 208 flow [2023-01-28 11:50:18,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=208, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2023-01-28 11:50:18,989 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 17 predicate places. [2023-01-28 11:50:18,989 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 208 flow [2023-01-28 11:50:18,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 209.5) internal successors, (1257), 6 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:18,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:50:18,989 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 11:50:19,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-28 11:50:19,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:50:19,196 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:50:19,196 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:50:19,197 INFO L85 PathProgramCache]: Analyzing trace with hash 2052497291, now seen corresponding path program 1 times [2023-01-28 11:50:19,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:50:19,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718740687] [2023-01-28 11:50:19,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:50:19,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:50:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:50:19,354 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-01-28 11:50:19,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:50:19,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718740687] [2023-01-28 11:50:19,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718740687] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 11:50:19,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983673235] [2023-01-28 11:50:19,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:50:19,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:50:19,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:50:19,357 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 11:50:19,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-28 11:50:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:50:19,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-28 11:50:19,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 11:50:19,554 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-01-28 11:50:19,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 11:50:19,618 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-01-28 11:50:19,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983673235] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-28 11:50:19,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-28 11:50:19,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2023-01-28 11:50:19,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442291162] [2023-01-28 11:50:19,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 11:50:19,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 11:50:19,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 11:50:19,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 11:50:19,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-01-28 11:50:19,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 584 [2023-01-28 11:50:19,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:19,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 11:50:19,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 584 [2023-01-28 11:50:19,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 11:50:19,800 INFO L130 PetriNetUnfolder]: 991/1364 cut-off events. [2023-01-28 11:50:19,800 INFO L131 PetriNetUnfolder]: For 764/968 co-relation queries the response was YES. [2023-01-28 11:50:19,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3603 conditions, 1364 events. 991/1364 cut-off events. For 764/968 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4732 event pairs, 318 based on Foata normal form. 272/1348 useless extension candidates. Maximal degree in co-relation 3565. Up to 721 conditions per place. [2023-01-28 11:50:19,808 INFO L137 encePairwiseOnDemand]: 577/584 looper letters, 54 selfloop transitions, 8 changer transitions 0/64 dead transitions. [2023-01-28 11:50:19,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 64 transitions, 402 flow [2023-01-28 11:50:19,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 11:50:19,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 11:50:19,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1298 transitions. [2023-01-28 11:50:19,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3704337899543379 [2023-01-28 11:50:19,812 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1298 transitions. [2023-01-28 11:50:19,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1298 transitions. [2023-01-28 11:50:19,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 11:50:19,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1298 transitions. [2023-01-28 11:50:19,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 216.33333333333334) internal successors, (1298), 6 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:19,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:19,822 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:19,822 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 208 flow. Second operand 6 states and 1298 transitions. [2023-01-28 11:50:19,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 64 transitions, 402 flow [2023-01-28 11:50:19,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 64 transitions, 390 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-28 11:50:19,829 INFO L231 Difference]: Finished difference. Result has 56 places, 47 transitions, 236 flow [2023-01-28 11:50:19,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=236, PETRI_PLACES=56, PETRI_TRANSITIONS=47} [2023-01-28 11:50:19,830 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 20 predicate places. [2023-01-28 11:50:19,830 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 47 transitions, 236 flow [2023-01-28 11:50:19,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 11:50:19,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 11:50:19,843 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 11:50:19,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-28 11:50:20,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:50:20,049 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 11:50:20,049 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 11:50:20,050 INFO L85 PathProgramCache]: Analyzing trace with hash 995945267, now seen corresponding path program 1 times [2023-01-28 11:50:20,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 11:50:20,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511950550] [2023-01-28 11:50:20,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:50:20,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 11:50:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:50:22,823 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 11:50:22,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 11:50:22,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511950550] [2023-01-28 11:50:22,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511950550] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 11:50:22,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484473943] [2023-01-28 11:50:22,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 11:50:22,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 11:50:22,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 11:50:22,825 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 11:50:22,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-28 11:50:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 11:50:22,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 73 conjunts are in the unsatisfiable core [2023-01-28 11:50:22,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 11:50:23,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-28 11:50:23,186 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 11:50:23,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-01-28 11:50:23,325 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 11:50:23,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2023-01-28 11:50:23,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 11:50:23,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-01-28 11:50:23,965 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2023-01-28 11:50:23,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 40 [2023-01-28 11:50:24,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 11:50:24,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 11:50:24,227 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2023-01-28 11:50:24,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 96 treesize of output 111 [2023-01-28 11:50:26,361 INFO L321 Elim1Store]: treesize reduction 96, result has 75.6 percent of original size [2023-01-28 11:50:26,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 267 treesize of output 447 [2023-01-28 11:50:31,340 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-01-28 11:50:31,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 11:50:31,702 WARN L839 $PredicateComparison]: unable to prove that (or (<= |c_thread1Thread1of1ForFork0_#t~mem2| c_~mina~0) (let ((.cse2 (+ c_~C~0.offset 4)) (.cse4 (+ c_~mina~0 c_~minb~0)) (.cse3 (+ (* c_thread1Thread1of1ForFork0_~i~0 4) c_~B~0.offset))) (and (forall ((v_ArrVal_505 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (let ((.cse0 (select (select .cse1 c_~B~0.base) .cse3))) (or (<= (+ .cse0 c_~mina~0) (select (select .cse1 c_~C~0.base) .cse2)) (< c_~minb~0 .cse0))))) (forall ((v_ArrVal_505 (Array Int Int))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (or (<= .cse4 (select (select .cse5 c_~C~0.base) .cse2)) (<= (select (select .cse5 c_~B~0.base) .cse3) c_~minb~0)))) (or (<= .cse4 c_~minc~0) (forall ((v_ArrVal_505 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse3) c_~minb~0))) (forall ((v_ArrVal_505 (Array Int Int))) (let ((.cse6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse3))) (or (<= (+ .cse6 c_~mina~0) c_~minc~0) (< c_~minb~0 .cse6))))))) is different from false [2023-01-28 11:50:31,809 WARN L839 $PredicateComparison]: unable to prove that (or (<= |c_thread1Thread1of1ForFork0_#t~mem2| c_~mina~0) (let ((.cse2 (* |c_thread2Thread1of1ForFork1_~i~1#1| 4))) (let ((.cse4 (+ (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset .cse2)) (select (select |c_#memory_int| c_~B~0.base) (+ .cse2 c_~B~0.offset)))) (.cse3 (+ (* c_thread1Thread1of1ForFork0_~i~0 4) c_~B~0.offset)) (.cse7 (+ c_~mina~0 c_~minb~0)) (.cse1 (select |c_#memory_int| c_~C~0.base))) (and (forall ((v_ArrVal_503 Int)) (or (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse0 (select (select (store (store |c_#memory_int| c_~C~0.base (store .cse1 (+ ~C~0.offset .cse2) v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse3))) (or (<= (+ .cse0 c_~mina~0) c_~minc~0) (< c_~minb~0 .cse0)))) (< v_ArrVal_503 .cse4))) (forall ((v_ArrVal_503 Int)) (or (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse6 (store (store |c_#memory_int| c_~C~0.base (store .cse1 (+ ~C~0.offset .cse2) v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (let ((.cse5 (select (select .cse6 c_~B~0.base) .cse3))) (or (<= (+ .cse5 c_~mina~0) (select (select .cse6 c_~C~0.base) (+ ~C~0.offset 4))) (< c_~minb~0 .cse5))))) (< v_ArrVal_503 .cse4))) (or (<= .cse7 c_~minc~0) (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int)) (v_ArrVal_503 Int)) (or (<= (select (select (store (store |c_#memory_int| c_~C~0.base (store .cse1 (+ ~C~0.offset .cse2) v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse3) c_~minb~0) (< v_ArrVal_503 .cse4)))) (forall ((v_ArrVal_503 Int)) (or (< v_ArrVal_503 .cse4) (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse8 (store (store |c_#memory_int| c_~C~0.base (store .cse1 (+ ~C~0.offset .cse2) v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (or (<= (select (select .cse8 c_~B~0.base) .cse3) c_~minb~0) (<= .cse7 (select (select .cse8 c_~C~0.base) (+ ~C~0.offset 4)))))))))))) is different from false [2023-01-28 11:50:32,236 WARN L839 $PredicateComparison]: unable to prove that (or (<= |c_thread1Thread1of1ForFork0_#t~mem2| c_~mina~0) (let ((.cse0 (+ c_~mina~0 c_~minb~0)) (.cse2 (+ 4 c_~B~0.offset)) (.cse3 (+ c_~A~0.offset 4)) (.cse4 (+ (* c_thread1Thread1of1ForFork0_~i~0 4) c_~B~0.offset))) (and (or (<= .cse0 c_~minc~0) (forall ((v_ArrVal_502 (Array Int Int)) (~C~0.offset Int) (v_ArrVal_505 (Array Int Int)) (v_ArrVal_503 Int)) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_502))) (or (< v_ArrVal_503 (+ (select (select .cse1 c_~B~0.base) .cse2) (select (select .cse1 c_~A~0.base) .cse3))) (<= (select (select (store (store .cse1 c_~C~0.base (store (select .cse1 c_~C~0.base) (+ ~C~0.offset 4) v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse4) c_~minb~0))))) (forall ((v_ArrVal_502 (Array Int Int)) (v_ArrVal_503 Int)) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_502))) (or (< v_ArrVal_503 (+ (select (select .cse5 c_~B~0.base) .cse2) (select (select .cse5 c_~A~0.base) .cse3))) (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse7 (+ ~C~0.offset 4))) (let ((.cse6 (store (store .cse5 c_~C~0.base (store (select .cse5 c_~C~0.base) .cse7 v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (or (<= (select (select .cse6 c_~B~0.base) .cse4) c_~minb~0) (<= .cse0 (select (select .cse6 c_~C~0.base) .cse7))))))))) (forall ((v_ArrVal_502 (Array Int Int)) (v_ArrVal_503 Int)) (let ((.cse8 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_502))) (or (< v_ArrVal_503 (+ (select (select .cse8 c_~B~0.base) .cse2) (select (select .cse8 c_~A~0.base) .cse3))) (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse9 (select (select (store (store .cse8 c_~C~0.base (store (select .cse8 c_~C~0.base) (+ ~C~0.offset 4) v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse4))) (or (< c_~minb~0 .cse9) (<= (+ .cse9 c_~mina~0) c_~minc~0))))))) (forall ((v_ArrVal_502 (Array Int Int)) (v_ArrVal_503 Int)) (let ((.cse10 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_502))) (or (< v_ArrVal_503 (+ (select (select .cse10 c_~B~0.base) .cse2) (select (select .cse10 c_~A~0.base) .cse3))) (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse13 (+ ~C~0.offset 4))) (let ((.cse12 (store (store .cse10 c_~C~0.base (store (select .cse10 c_~C~0.base) .cse13 v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (let ((.cse11 (select (select .cse12 c_~B~0.base) .cse4))) (or (< c_~minb~0 .cse11) (<= (+ .cse11 c_~mina~0) (select (select .cse12 c_~C~0.base) .cse13))))))))))))) is different from false [2023-01-28 11:50:32,357 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 11:50:32,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6035 treesize of output 5913 [2023-01-28 11:50:32,577 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 11:50:32,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2837 treesize of output 2804 [2023-01-28 11:50:32,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2773 treesize of output 2677 [2023-01-28 11:50:32,730 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 11:50:32,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2677 treesize of output 2636 [2023-01-28 11:50:32,851 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 11:50:32,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2661 treesize of output 2652 [2023-01-28 11:50:32,948 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 11:50:32,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2621 treesize of output 2428 [2023-01-28 11:50:33,063 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 11:50:33,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2537 treesize of output 2480 [2023-01-28 11:50:33,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2449 treesize of output 2401 [2023-01-28 11:50:33,282 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 11:50:33,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2441 treesize of output 2432 Received shutdown request... [2023-01-28 12:03:25,404 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 12:03:25,413 WARN L238 SmtUtils]: Removed 2 from assertion stack [2023-01-28 12:03:25,414 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 12:03:25,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-28 12:03:25,433 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 12:03:25,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 12:03:25,617 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 35 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 14 for 9ms.. [2023-01-28 12:03:25,619 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-28 12:03:25,619 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-28 12:03:25,619 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-28 12:03:25,619 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 12:03:25,622 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 12:03:25,622 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 12:03:25,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 12:03:25 BasicIcfg [2023-01-28 12:03:25,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 12:03:25,625 INFO L158 Benchmark]: Toolchain (without parser) took 801374.99ms. Allocated memory was 394.3MB in the beginning and 1.2GB in the end (delta: 834.7MB). Free memory was 353.4MB in the beginning and 912.3MB in the end (delta: -558.9MB). Peak memory consumption was 741.7MB. Max. memory is 16.0GB. [2023-01-28 12:03:25,625 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 213.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 12:03:25,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.16ms. Allocated memory is still 394.3MB. Free memory was 353.1MB in the beginning and 341.1MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 12:03:25,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.52ms. Allocated memory is still 394.3MB. Free memory was 341.1MB in the beginning and 338.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-28 12:03:25,626 INFO L158 Benchmark]: Boogie Preprocessor took 59.27ms. Allocated memory is still 394.3MB. Free memory was 338.7MB in the beginning and 336.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 12:03:25,626 INFO L158 Benchmark]: RCFGBuilder took 691.44ms. Allocated memory is still 394.3MB. Free memory was 336.6MB in the beginning and 363.1MB in the end (delta: -26.5MB). Peak memory consumption was 31.1MB. Max. memory is 16.0GB. [2023-01-28 12:03:25,626 INFO L158 Benchmark]: TraceAbstraction took 800267.72ms. Allocated memory was 394.3MB in the beginning and 1.2GB in the end (delta: 834.7MB). Free memory was 362.4MB in the beginning and 912.3MB in the end (delta: -549.9MB). Peak memory consumption was 750.4MB. Max. memory is 16.0GB. [2023-01-28 12:03:25,627 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 255.9MB. Free memory is still 213.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 292.16ms. Allocated memory is still 394.3MB. Free memory was 353.1MB in the beginning and 341.1MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.52ms. Allocated memory is still 394.3MB. Free memory was 341.1MB in the beginning and 338.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 59.27ms. Allocated memory is still 394.3MB. Free memory was 338.7MB in the beginning and 336.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 691.44ms. Allocated memory is still 394.3MB. Free memory was 336.6MB in the beginning and 363.1MB in the end (delta: -26.5MB). Peak memory consumption was 31.1MB. Max. memory is 16.0GB. * TraceAbstraction took 800267.72ms. Allocated memory was 394.3MB in the beginning and 1.2GB in the end (delta: 834.7MB). Free memory was 362.4MB in the beginning and 912.3MB in the end (delta: -549.9MB). Peak memory consumption was 750.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.9s, 254 PlacesBefore, 36 PlacesAfterwards, 271 TransitionsBefore, 34 TransitionsAfterwards, 2634 CoEnabledTransitionPairs, 7 FixpointIterations, 182 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 51 TrivialYvCompositions, 10 ConcurrentYvCompositions, 19 ChoiceCompositions, 300 TotalNumberOfCompositions, 3780 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2690, independent: 2592, independent conditional: 0, independent unconditional: 2592, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1436, independent: 1408, independent conditional: 0, independent unconditional: 1408, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2690, independent: 1184, independent conditional: 0, independent unconditional: 1184, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 1436, unknown conditional: 0, unknown unconditional: 1436] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 96, Positive conditional cache size: 0, Positive unconditional cache size: 96, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 35 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 14 for 9ms.. - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 35 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 14 for 9ms.. - TimeoutResultAtElement [Line: 106]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 35 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 14 for 9ms.. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 35 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 14 for 9ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 303 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 800.2s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 388 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 388 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 964 IncrementalHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 5 mSDtfsCounter, 964 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 332 GetRequests, 261 SyntacticMatches, 5 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=4, InterpolantAutomatonStates: 44, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 366 NumberOfCodeBlocks, 366 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 496 ConstructedInterpolants, 0 QuantifiedInterpolants, 1222 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1801 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 103/124 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown