/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_REDUNDANT_FLOW -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 12:42:03,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 12:42:03,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 12:42:03,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 12:42:03,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 12:42:03,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 12:42:03,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 12:42:03,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 12:42:03,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 12:42:03,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 12:42:03,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 12:42:03,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 12:42:03,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 12:42:03,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 12:42:03,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 12:42:03,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 12:42:03,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 12:42:03,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 12:42:03,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 12:42:03,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 12:42:03,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 12:42:03,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 12:42:03,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 12:42:03,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 12:42:03,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 12:42:03,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 12:42:03,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 12:42:03,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 12:42:03,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 12:42:03,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 12:42:03,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 12:42:03,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 12:42:03,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 12:42:03,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 12:42:03,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 12:42:03,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 12:42:03,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 12:42:03,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 12:42:03,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 12:42:03,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 12:42:03,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 12:42:03,702 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-12 12:42:03,727 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 12:42:03,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 12:42:03,729 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 12:42:03,729 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 12:42:03,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 12:42:03,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 12:42:03,730 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 12:42:03,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 12:42:03,730 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 12:42:03,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 12:42:03,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 12:42:03,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 12:42:03,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 12:42:03,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 12:42:03,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 12:42:03,732 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 12:42:03,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 12:42:03,732 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 12:42:03,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 12:42:03,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 12:42:03,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 12:42:03,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 12:42:03,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 12:42:03,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:42:03,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 12:42:03,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 12:42:03,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 12:42:03,733 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 12:42:03,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 12:42:03,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 12:42:03,733 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 12:42:03,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_REDUNDANT_FLOW [2022-12-12 12:42:03,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 12:42:04,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 12:42:04,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 12:42:04,004 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 12:42:04,004 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 12:42:04,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2022-12-12 12:42:05,026 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 12:42:05,216 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 12:42:05,216 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2022-12-12 12:42:05,221 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9acb90191/8e4db8881b3f4ac3a927875c31de01a9/FLAG85bbc4e75 [2022-12-12 12:42:05,231 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9acb90191/8e4db8881b3f4ac3a927875c31de01a9 [2022-12-12 12:42:05,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 12:42:05,233 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 12:42:05,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 12:42:05,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 12:42:05,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 12:42:05,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:42:05" (1/1) ... [2022-12-12 12:42:05,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ae21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:42:05, skipping insertion in model container [2022-12-12 12:42:05,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:42:05" (1/1) ... [2022-12-12 12:42:05,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 12:42:05,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 12:42:05,354 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c[2333,2346] [2022-12-12 12:42:05,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:42:05,364 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 12:42:05,376 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c[2333,2346] [2022-12-12 12:42:05,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:42:05,386 INFO L208 MainTranslator]: Completed translation [2022-12-12 12:42:05,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:42:05 WrapperNode [2022-12-12 12:42:05,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 12:42:05,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 12:42:05,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 12:42:05,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 12:42:05,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:42:05" (1/1) ... [2022-12-12 12:42:05,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:42:05" (1/1) ... [2022-12-12 12:42:05,416 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-12-12 12:42:05,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 12:42:05,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 12:42:05,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 12:42:05,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 12:42:05,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:42:05" (1/1) ... [2022-12-12 12:42:05,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:42:05" (1/1) ... [2022-12-12 12:42:05,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:42:05" (1/1) ... [2022-12-12 12:42:05,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:42:05" (1/1) ... [2022-12-12 12:42:05,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:42:05" (1/1) ... [2022-12-12 12:42:05,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:42:05" (1/1) ... [2022-12-12 12:42:05,430 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:42:05" (1/1) ... [2022-12-12 12:42:05,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:42:05" (1/1) ... [2022-12-12 12:42:05,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 12:42:05,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 12:42:05,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 12:42:05,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 12:42:05,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:42:05" (1/1) ... [2022-12-12 12:42:05,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:42:05,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:42:05,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 12:42:05,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 12:42:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 12:42:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 12:42:05,496 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 12:42:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 12:42:05,496 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 12:42:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 12:42:05,496 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 12:42:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 12:42:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 12:42:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 12:42:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 12:42:05,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 12:42:05,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 12:42:05,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 12:42:05,498 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 12:42:05,595 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 12:42:05,596 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 12:42:05,811 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 12:42:05,823 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 12:42:05,823 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 12:42:05,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:42:05 BoogieIcfgContainer [2022-12-12 12:42:05,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 12:42:05,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 12:42:05,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 12:42:05,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 12:42:05,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:42:05" (1/3) ... [2022-12-12 12:42:05,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648e5472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:42:05, skipping insertion in model container [2022-12-12 12:42:05,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:42:05" (2/3) ... [2022-12-12 12:42:05,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648e5472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:42:05, skipping insertion in model container [2022-12-12 12:42:05,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:42:05" (3/3) ... [2022-12-12 12:42:05,831 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2022-12-12 12:42:05,844 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 12:42:05,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 12:42:05,844 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 12:42:05,918 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 12:42:05,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 87 transitions, 198 flow [2022-12-12 12:42:05,979 INFO L130 PetriNetUnfolder]: 2/84 cut-off events. [2022-12-12 12:42:05,980 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 12:42:05,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 84 events. 2/84 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-12-12 12:42:05,983 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 87 transitions, 198 flow [2022-12-12 12:42:05,988 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 74 transitions, 166 flow [2022-12-12 12:42:05,995 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 12:42:06,000 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;@581d6475, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 12:42:06,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 12:42:06,019 INFO L130 PetriNetUnfolder]: 2/73 cut-off events. [2022-12-12 12:42:06,019 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 12:42:06,019 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:42:06,020 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:42:06,020 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 12:42:06,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:42:06,024 INFO L85 PathProgramCache]: Analyzing trace with hash -329090897, now seen corresponding path program 1 times [2022-12-12 12:42:06,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:42:06,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348622261] [2022-12-12 12:42:06,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:42:06,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:42:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:42:08,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:42:08,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:42:08,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348622261] [2022-12-12 12:42:08,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348622261] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:42:08,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:42:08,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 12:42:08,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330597497] [2022-12-12 12:42:08,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:42:08,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 12:42:08,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:42:08,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 12:42:08,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 12:42:08,412 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-12 12:42:08,415 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 74 transitions, 166 flow. Second operand has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:42:08,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:42:08,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-12 12:42:08,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:42:09,291 INFO L130 PetriNetUnfolder]: 15/180 cut-off events. [2022-12-12 12:42:09,292 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2022-12-12 12:42:09,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 180 events. 15/180 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 521 event pairs, 5 based on Foata normal form. 6/175 useless extension candidates. Maximal degree in co-relation 137. Up to 30 conditions per place. [2022-12-12 12:42:09,294 INFO L137 encePairwiseOnDemand]: 74/87 looper letters, 39 selfloop transitions, 2 changer transitions 18/103 dead transitions. [2022-12-12 12:42:09,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 103 transitions, 369 flow [2022-12-12 12:42:09,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:42:09,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:42:09,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 794 transitions. [2022-12-12 12:42:09,314 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7020335985853228 [2022-12-12 12:42:09,320 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 12 predicate places. [2022-12-12 12:42:09,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 103 transitions, 369 flow [2022-12-12 12:42:09,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 103 transitions, 319 flow, removed 10 selfloop flow, removed 6 redundant places. [2022-12-12 12:42:09,328 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 103 transitions, 319 flow [2022-12-12 12:42:09,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:42:09,328 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:42:09,329 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:42:09,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 12:42:09,329 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 12:42:09,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:42:09,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1714481581, now seen corresponding path program 2 times [2022-12-12 12:42:09,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:42:09,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360903788] [2022-12-12 12:42:09,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:42:09,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:42:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:42:10,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:42:10,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:42:10,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360903788] [2022-12-12 12:42:10,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360903788] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:42:10,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:42:10,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 12:42:10,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527515606] [2022-12-12 12:42:10,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:42:10,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 12:42:10,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:42:10,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 12:42:10,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 12:42:10,709 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-12 12:42:10,710 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 103 transitions, 319 flow. Second operand has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:42:10,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:42:10,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-12 12:42:10,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:42:12,195 INFO L130 PetriNetUnfolder]: 14/203 cut-off events. [2022-12-12 12:42:12,203 INFO L131 PetriNetUnfolder]: For 68/103 co-relation queries the response was YES. [2022-12-12 12:42:12,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 203 events. 14/203 cut-off events. For 68/103 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 674 event pairs, 1 based on Foata normal form. 8/204 useless extension candidates. Maximal degree in co-relation 59. Up to 40 conditions per place. [2022-12-12 12:42:12,204 INFO L137 encePairwiseOnDemand]: 76/87 looper letters, 42 selfloop transitions, 3 changer transitions 32/121 dead transitions. [2022-12-12 12:42:12,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 121 transitions, 551 flow [2022-12-12 12:42:12,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:42:12,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:42:12,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 788 transitions. [2022-12-12 12:42:12,207 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6967285587975243 [2022-12-12 12:42:12,207 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 18 predicate places. [2022-12-12 12:42:12,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 121 transitions, 551 flow [2022-12-12 12:42:12,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 121 transitions, 439 flow, removed 56 selfloop flow, removed 0 redundant places. [2022-12-12 12:42:12,210 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 121 transitions, 439 flow [2022-12-12 12:42:12,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:42:12,211 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:42:12,211 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:42:12,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 12:42:12,211 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 12:42:12,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:42:12,212 INFO L85 PathProgramCache]: Analyzing trace with hash 106252465, now seen corresponding path program 3 times [2022-12-12 12:42:12,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:42:12,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592684624] [2022-12-12 12:42:12,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:42:12,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:42:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:42:13,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:42:13,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:42:13,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592684624] [2022-12-12 12:42:13,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592684624] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:42:13,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:42:13,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 12:42:13,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062179401] [2022-12-12 12:42:13,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:42:13,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 12:42:13,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:42:13,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 12:42:13,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 12:42:13,356 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-12 12:42:13,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 121 transitions, 439 flow. Second operand has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:42:13,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:42:13,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-12 12:42:13,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:42:14,071 INFO L130 PetriNetUnfolder]: 14/229 cut-off events. [2022-12-12 12:42:14,071 INFO L131 PetriNetUnfolder]: For 107/154 co-relation queries the response was YES. [2022-12-12 12:42:14,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 229 events. 14/229 cut-off events. For 107/154 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 875 event pairs, 0 based on Foata normal form. 21/250 useless extension candidates. Maximal degree in co-relation 72. Up to 44 conditions per place. [2022-12-12 12:42:14,072 INFO L137 encePairwiseOnDemand]: 76/87 looper letters, 40 selfloop transitions, 2 changer transitions 49/135 dead transitions. [2022-12-12 12:42:14,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 135 transitions, 689 flow [2022-12-12 12:42:14,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:42:14,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:42:14,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 786 transitions. [2022-12-12 12:42:14,076 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6949602122015915 [2022-12-12 12:42:14,077 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 30 predicate places. [2022-12-12 12:42:14,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 135 transitions, 689 flow [2022-12-12 12:42:14,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 135 transitions, 571 flow, removed 58 selfloop flow, removed 1 redundant places. [2022-12-12 12:42:14,083 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 135 transitions, 571 flow [2022-12-12 12:42:14,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:42:14,083 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:42:14,084 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:42:14,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 12:42:14,084 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 12:42:14,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:42:14,084 INFO L85 PathProgramCache]: Analyzing trace with hash 2030960695, now seen corresponding path program 4 times [2022-12-12 12:42:14,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:42:14,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116320984] [2022-12-12 12:42:14,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:42:14,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:42:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:42:14,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:42:14,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:42:14,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116320984] [2022-12-12 12:42:14,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116320984] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:42:14,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:42:14,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 12:42:14,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172803484] [2022-12-12 12:42:14,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:42:14,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 12:42:14,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:42:14,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 12:42:14,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 12:42:14,946 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-12 12:42:14,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 135 transitions, 571 flow. Second operand has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:42:14,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:42:14,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-12 12:42:14,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:42:16,212 INFO L130 PetriNetUnfolder]: 14/224 cut-off events. [2022-12-12 12:42:16,212 INFO L131 PetriNetUnfolder]: For 173/250 co-relation queries the response was YES. [2022-12-12 12:42:16,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 224 events. 14/224 cut-off events. For 173/250 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 839 event pairs, 0 based on Foata normal form. 15/239 useless extension candidates. Maximal degree in co-relation 68. Up to 44 conditions per place. [2022-12-12 12:42:16,213 INFO L137 encePairwiseOnDemand]: 76/87 looper letters, 26 selfloop transitions, 3 changer transitions 70/143 dead transitions. [2022-12-12 12:42:16,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 143 transitions, 824 flow [2022-12-12 12:42:16,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:42:16,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:42:16,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 786 transitions. [2022-12-12 12:42:16,217 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6949602122015915 [2022-12-12 12:42:16,218 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 41 predicate places. [2022-12-12 12:42:16,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 143 transitions, 824 flow [2022-12-12 12:42:16,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 143 transitions, 698 flow, removed 63 selfloop flow, removed 0 redundant places. [2022-12-12 12:42:16,221 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 143 transitions, 698 flow [2022-12-12 12:42:16,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:42:16,221 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:42:16,221 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:42:16,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 12:42:16,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 12:42:16,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:42:16,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1737879735, now seen corresponding path program 5 times [2022-12-12 12:42:16,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:42:16,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034053875] [2022-12-12 12:42:16,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:42:16,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:42:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:42:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:42:16,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:42:16,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034053875] [2022-12-12 12:42:16,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034053875] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:42:16,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:42:16,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 12:42:16,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147522402] [2022-12-12 12:42:16,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:42:16,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 12:42:16,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:42:16,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 12:42:16,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 12:42:16,952 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-12 12:42:16,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 143 transitions, 698 flow. Second operand has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:42:16,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:42:16,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-12 12:42:16,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:42:17,767 INFO L130 PetriNetUnfolder]: 13/244 cut-off events. [2022-12-12 12:42:17,768 INFO L131 PetriNetUnfolder]: For 262/414 co-relation queries the response was YES. [2022-12-12 12:42:17,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 244 events. 13/244 cut-off events. For 262/414 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1028 event pairs, 0 based on Foata normal form. 19/263 useless extension candidates. Maximal degree in co-relation 89. Up to 51 conditions per place. [2022-12-12 12:42:17,769 INFO L137 encePairwiseOnDemand]: 76/87 looper letters, 25 selfloop transitions, 1 changer transitions 86/156 dead transitions. [2022-12-12 12:42:17,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 156 transitions, 1014 flow [2022-12-12 12:42:17,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:42:17,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:42:17,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 786 transitions. [2022-12-12 12:42:17,771 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6949602122015915 [2022-12-12 12:42:17,772 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 53 predicate places. [2022-12-12 12:42:17,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 156 transitions, 1014 flow [2022-12-12 12:42:17,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 156 transitions, 843 flow, removed 83 selfloop flow, removed 1 redundant places. [2022-12-12 12:42:17,777 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 156 transitions, 843 flow [2022-12-12 12:42:17,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:42:17,781 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:42:17,781 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:42:17,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 12:42:17,782 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 12:42:17,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:42:17,783 INFO L85 PathProgramCache]: Analyzing trace with hash 775607855, now seen corresponding path program 6 times [2022-12-12 12:42:17,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:42:17,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218248090] [2022-12-12 12:42:17,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:42:17,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:42:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:42:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:42:18,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:42:18,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218248090] [2022-12-12 12:42:18,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218248090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:42:18,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:42:18,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 12:42:18,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474854298] [2022-12-12 12:42:18,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:42:18,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 12:42:18,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:42:18,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 12:42:18,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 12:42:18,542 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-12 12:42:18,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 156 transitions, 843 flow. Second operand has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:42:18,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:42:18,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-12 12:42:18,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:42:19,610 INFO L130 PetriNetUnfolder]: 13/242 cut-off events. [2022-12-12 12:42:19,610 INFO L131 PetriNetUnfolder]: For 352/631 co-relation queries the response was YES. [2022-12-12 12:42:19,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685 conditions, 242 events. 13/242 cut-off events. For 352/631 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1029 event pairs, 0 based on Foata normal form. 23/265 useless extension candidates. Maximal degree in co-relation 90. Up to 44 conditions per place. [2022-12-12 12:42:19,611 INFO L137 encePairwiseOnDemand]: 76/87 looper letters, 0 selfloop transitions, 0 changer transitions 153/153 dead transitions. [2022-12-12 12:42:19,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 153 transitions, 1053 flow [2022-12-12 12:42:19,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:42:19,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:42:19,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 785 transitions. [2022-12-12 12:42:19,613 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6940760389036251 [2022-12-12 12:42:19,614 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 61 predicate places. [2022-12-12 12:42:19,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 153 transitions, 1053 flow [2022-12-12 12:42:19,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 153 transitions, 798 flow, removed 110 selfloop flow, removed 3 redundant places. [2022-12-12 12:42:19,616 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 153 transitions, 798 flow [2022-12-12 12:42:19,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:42:19,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 12:42:19,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 12:42:19,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 12:42:19,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 12:42:19,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 12:42:19,619 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2022-12-12 12:42:19,622 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 12:42:19,622 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 12:42:19,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 12:42:19 BasicIcfg [2022-12-12 12:42:19,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 12:42:19,626 INFO L158 Benchmark]: Toolchain (without parser) took 14392.10ms. Allocated memory was 172.0MB in the beginning and 437.3MB in the end (delta: 265.3MB). Free memory was 147.5MB in the beginning and 260.4MB in the end (delta: -112.9MB). Peak memory consumption was 153.7MB. Max. memory is 8.0GB. [2022-12-12 12:42:19,626 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 172.0MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 12:42:19,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 151.71ms. Allocated memory is still 172.0MB. Free memory was 147.5MB in the beginning and 136.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-12 12:42:19,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.23ms. Allocated memory is still 172.0MB. Free memory was 136.8MB in the beginning and 135.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 12:42:19,626 INFO L158 Benchmark]: Boogie Preprocessor took 15.10ms. Allocated memory is still 172.0MB. Free memory was 135.2MB in the beginning and 133.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 12:42:19,627 INFO L158 Benchmark]: RCFGBuilder took 392.36ms. Allocated memory is still 172.0MB. Free memory was 133.6MB in the beginning and 120.5MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 12:42:19,627 INFO L158 Benchmark]: TraceAbstraction took 13798.63ms. Allocated memory was 172.0MB in the beginning and 437.3MB in the end (delta: 265.3MB). Free memory was 119.4MB in the beginning and 260.4MB in the end (delta: -141.0MB). Peak memory consumption was 125.4MB. Max. memory is 8.0GB. [2022-12-12 12:42:19,628 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 172.0MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 151.71ms. Allocated memory is still 172.0MB. Free memory was 147.5MB in the beginning and 136.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.23ms. Allocated memory is still 172.0MB. Free memory was 136.8MB in the beginning and 135.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.10ms. Allocated memory is still 172.0MB. Free memory was 135.2MB in the beginning and 133.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 392.36ms. Allocated memory is still 172.0MB. Free memory was 133.6MB in the beginning and 120.5MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 13798.63ms. Allocated memory was 172.0MB in the beginning and 437.3MB in the end (delta: 265.3MB). Free memory was 119.4MB in the beginning and 260.4MB in the end (delta: -141.0MB). Peak memory consumption was 125.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 77]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 101 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: 13.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 319 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 319 mSDsluCounter, 676 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 509 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1049 IncrementalHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 167 mSDtfsCounter, 1049 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=843occurred in iteration=5, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 832 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 420 NumberOfCodeBlocks, 420 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 414 ConstructedInterpolants, 0 QuantifiedInterpolants, 7718 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 12:42:19,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...