/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 21:23:35,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 21:23:35,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 21:23:35,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 21:23:35,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 21:23:35,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 21:23:35,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 21:23:35,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 21:23:35,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 21:23:35,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 21:23:35,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 21:23:35,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 21:23:35,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 21:23:35,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 21:23:35,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 21:23:35,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 21:23:35,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 21:23:35,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 21:23:35,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 21:23:35,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 21:23:35,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 21:23:35,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 21:23:35,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 21:23:35,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 21:23:35,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 21:23:35,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 21:23:35,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 21:23:35,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 21:23:35,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 21:23:35,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 21:23:35,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 21:23:35,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 21:23:35,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 21:23:35,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 21:23:35,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 21:23:35,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 21:23:35,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 21:23:35,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 21:23:35,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 21:23:35,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 21:23:35,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 21:23:35,382 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 [2022-12-11 21:23:35,409 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 21:23:35,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 21:23:35,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 21:23:35,410 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 21:23:35,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 21:23:35,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 21:23:35,411 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 21:23:35,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 21:23:35,412 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 21:23:35,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 21:23:35,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 21:23:35,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 21:23:35,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 21:23:35,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 21:23:35,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 21:23:35,413 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 21:23:35,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 21:23:35,413 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 21:23:35,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 21:23:35,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 21:23:35,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 21:23:35,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 21:23:35,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 21:23:35,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:23:35,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 21:23:35,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 21:23:35,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 21:23:35,414 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 21:23:35,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 21:23:35,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 21:23:35,415 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 21:23:35,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-11 21:23:35,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 21:23:35,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 21:23:35,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 21:23:35,677 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 21:23:35,677 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 21:23:35,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c [2022-12-11 21:23:36,636 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 21:23:36,763 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 21:23:36,763 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c [2022-12-11 21:23:36,772 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d72cf7922/964b764659324f9ebad4f59567e1d090/FLAGad0982a37 [2022-12-11 21:23:36,782 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d72cf7922/964b764659324f9ebad4f59567e1d090 [2022-12-11 21:23:36,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 21:23:36,785 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 21:23:36,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 21:23:36,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 21:23:36,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 21:23:36,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:23:36" (1/1) ... [2022-12-11 21:23:36,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@206f8290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:23:36, skipping insertion in model container [2022-12-11 21:23:36,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:23:36" (1/1) ... [2022-12-11 21:23:36,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 21:23:36,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 21:23:36,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:23:36,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:23:36,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:23:36,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:23:36,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:23:36,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:23:36,963 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-collitem-trans.wvr.c[3481,3494] [2022-12-11 21:23:36,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:23:36,981 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 21:23:36,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:23:36,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:23:36,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:23:37,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:23:37,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:23:37,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:23:37,019 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-collitem-trans.wvr.c[3481,3494] [2022-12-11 21:23:37,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:23:37,035 INFO L208 MainTranslator]: Completed translation [2022-12-11 21:23:37,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:23:37 WrapperNode [2022-12-11 21:23:37,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 21:23:37,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 21:23:37,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 21:23:37,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 21:23:37,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:23:37" (1/1) ... [2022-12-11 21:23:37,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:23:37" (1/1) ... [2022-12-11 21:23:37,084 INFO L138 Inliner]: procedures = 23, calls = 45, calls flagged for inlining = 17, calls inlined = 39, statements flattened = 349 [2022-12-11 21:23:37,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 21:23:37,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 21:23:37,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 21:23:37,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 21:23:37,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:23:37" (1/1) ... [2022-12-11 21:23:37,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:23:37" (1/1) ... [2022-12-11 21:23:37,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:23:37" (1/1) ... [2022-12-11 21:23:37,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:23:37" (1/1) ... [2022-12-11 21:23:37,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:23:37" (1/1) ... [2022-12-11 21:23:37,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:23:37" (1/1) ... [2022-12-11 21:23:37,111 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:23:37" (1/1) ... [2022-12-11 21:23:37,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:23:37" (1/1) ... [2022-12-11 21:23:37,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 21:23:37,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 21:23:37,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 21:23:37,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 21:23:37,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:23:37" (1/1) ... [2022-12-11 21:23:37,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:23:37,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:23:37,190 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) [2022-12-11 21:23:37,249 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 [2022-12-11 21:23:37,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 21:23:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-11 21:23:37,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-11 21:23:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-11 21:23:37,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-11 21:23:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-11 21:23:37,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-11 21:23:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 21:23:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 21:23:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 21:23:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 21:23:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 21:23:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 21:23:37,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 21:23:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 21:23:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 21:23:37,264 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 21:23:37,377 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 21:23:37,379 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 21:23:37,824 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 21:23:38,210 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 21:23:38,210 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 21:23:38,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:23:38 BoogieIcfgContainer [2022-12-11 21:23:38,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 21:23:38,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 21:23:38,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 21:23:38,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 21:23:38,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 09:23:36" (1/3) ... [2022-12-11 21:23:38,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337bb6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:23:38, skipping insertion in model container [2022-12-11 21:23:38,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:23:37" (2/3) ... [2022-12-11 21:23:38,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337bb6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:23:38, skipping insertion in model container [2022-12-11 21:23:38,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:23:38" (3/3) ... [2022-12-11 21:23:38,220 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2022-12-11 21:23:38,233 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 21:23:38,233 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 21:23:38,234 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 21:23:38,335 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-11 21:23:38,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 120 transitions, 264 flow [2022-12-11 21:23:38,422 INFO L130 PetriNetUnfolder]: 1/117 cut-off events. [2022-12-11 21:23:38,423 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 21:23:38,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 117 events. 1/117 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 20 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2022-12-11 21:23:38,427 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 120 transitions, 264 flow [2022-12-11 21:23:38,430 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 107 transitions, 232 flow [2022-12-11 21:23:38,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 21:23:38,446 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;@51c93d69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 21:23:38,447 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 21:23:38,483 INFO L130 PetriNetUnfolder]: 1/106 cut-off events. [2022-12-11 21:23:38,483 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 21:23:38,483 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:23:38,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:23:38,485 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)] === [2022-12-11 21:23:38,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:23:38,489 INFO L85 PathProgramCache]: Analyzing trace with hash -171404517, now seen corresponding path program 1 times [2022-12-11 21:23:38,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:23:38,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21737017] [2022-12-11 21:23:38,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:23:38,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:23:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:23:42,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:23:42,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:23:42,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21737017] [2022-12-11 21:23:42,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21737017] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:23:42,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:23:42,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:23:42,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586632895] [2022-12-11 21:23:42,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:23:42,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:23:42,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:23:42,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:23:42,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:23:42,092 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 120 [2022-12-11 21:23:42,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 107 transitions, 232 flow. Second operand has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 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) [2022-12-11 21:23:42,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:23:42,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 120 [2022-12-11 21:23:42,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:23:42,539 INFO L130 PetriNetUnfolder]: 14/195 cut-off events. [2022-12-11 21:23:42,540 INFO L131 PetriNetUnfolder]: For 49/56 co-relation queries the response was YES. [2022-12-11 21:23:42,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 195 events. 14/195 cut-off events. For 49/56 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 436 event pairs, 7 based on Foata normal form. 5/192 useless extension candidates. Maximal degree in co-relation 133. Up to 46 conditions per place. [2022-12-11 21:23:42,542 INFO L137 encePairwiseOnDemand]: 110/120 looper letters, 47 selfloop transitions, 4 changer transitions 10/126 dead transitions. [2022-12-11 21:23:42,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 126 transitions, 416 flow [2022-12-11 21:23:42,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 21:23:42,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 21:23:42,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 835 transitions. [2022-12-11 21:23:42,553 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6958333333333333 [2022-12-11 21:23:42,555 INFO L295 CegarLoopForPetriNet]: 116 programPoint places, 9 predicate places. [2022-12-11 21:23:42,555 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 126 transitions, 416 flow [2022-12-11 21:23:42,557 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 116 transitions, 367 flow [2022-12-11 21:23:42,557 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 116 transitions, 367 flow [2022-12-11 21:23:42,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 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) [2022-12-11 21:23:42,558 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:23:42,558 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:23:42,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 21:23:42,558 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)] === [2022-12-11 21:23:42,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:23:42,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1381749393, now seen corresponding path program 2 times [2022-12-11 21:23:42,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:23:42,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023809249] [2022-12-11 21:23:42,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:23:42,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:23:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:23:44,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:23:44,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:23:44,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023809249] [2022-12-11 21:23:44,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023809249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:23:44,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:23:44,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:23:44,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752858534] [2022-12-11 21:23:44,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:23:44,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:23:44,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:23:44,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:23:44,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:23:44,286 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 120 [2022-12-11 21:23:44,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 116 transitions, 367 flow. Second operand has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 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) [2022-12-11 21:23:44,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:23:44,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 120 [2022-12-11 21:23:44,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:23:44,647 INFO L130 PetriNetUnfolder]: 13/220 cut-off events. [2022-12-11 21:23:44,647 INFO L131 PetriNetUnfolder]: For 163/355 co-relation queries the response was YES. [2022-12-11 21:23:44,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 220 events. 13/220 cut-off events. For 163/355 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 627 event pairs, 1 based on Foata normal form. 10/228 useless extension candidates. Maximal degree in co-relation 185. Up to 49 conditions per place. [2022-12-11 21:23:44,648 INFO L137 encePairwiseOnDemand]: 112/120 looper letters, 57 selfloop transitions, 5 changer transitions 11/138 dead transitions. [2022-12-11 21:23:44,649 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 138 transitions, 634 flow [2022-12-11 21:23:44,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 21:23:44,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 21:23:44,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 676 transitions. [2022-12-11 21:23:44,653 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7041666666666667 [2022-12-11 21:23:44,653 INFO L295 CegarLoopForPetriNet]: 116 programPoint places, 10 predicate places. [2022-12-11 21:23:44,653 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 138 transitions, 634 flow [2022-12-11 21:23:44,656 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 127 transitions, 550 flow [2022-12-11 21:23:44,656 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 127 transitions, 550 flow [2022-12-11 21:23:44,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 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) [2022-12-11 21:23:44,656 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:23:44,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:23:44,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 21:23:44,657 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)] === [2022-12-11 21:23:44,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:23:44,657 INFO L85 PathProgramCache]: Analyzing trace with hash -305740197, now seen corresponding path program 3 times [2022-12-11 21:23:44,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:23:44,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942517636] [2022-12-11 21:23:44,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:23:44,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:23:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:23:47,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:23:47,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:23:47,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942517636] [2022-12-11 21:23:47,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942517636] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:23:47,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:23:47,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:23:47,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078622118] [2022-12-11 21:23:47,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:23:47,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:23:47,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:23:47,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:23:47,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:23:47,481 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 120 [2022-12-11 21:23:47,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 127 transitions, 550 flow. Second operand has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 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) [2022-12-11 21:23:47,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:23:47,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 120 [2022-12-11 21:23:47,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:23:48,037 INFO L130 PetriNetUnfolder]: 9/192 cut-off events. [2022-12-11 21:23:48,038 INFO L131 PetriNetUnfolder]: For 243/329 co-relation queries the response was YES. [2022-12-11 21:23:48,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 192 events. 9/192 cut-off events. For 243/329 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 425 event pairs, 0 based on Foata normal form. 16/208 useless extension candidates. Maximal degree in co-relation 202. Up to 43 conditions per place. [2022-12-11 21:23:48,039 INFO L137 encePairwiseOnDemand]: 112/120 looper letters, 51 selfloop transitions, 6 changer transitions 13/135 dead transitions. [2022-12-11 21:23:48,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 135 transitions, 753 flow [2022-12-11 21:23:48,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 21:23:48,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 21:23:48,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 676 transitions. [2022-12-11 21:23:48,042 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7041666666666667 [2022-12-11 21:23:48,042 INFO L295 CegarLoopForPetriNet]: 116 programPoint places, 14 predicate places. [2022-12-11 21:23:48,042 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 135 transitions, 753 flow [2022-12-11 21:23:48,043 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 122 transitions, 628 flow [2022-12-11 21:23:48,043 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 122 transitions, 628 flow [2022-12-11 21:23:48,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 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) [2022-12-11 21:23:48,044 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:23:48,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:23:48,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 21:23:48,044 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)] === [2022-12-11 21:23:48,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:23:48,045 INFO L85 PathProgramCache]: Analyzing trace with hash -2074242729, now seen corresponding path program 4 times [2022-12-11 21:23:48,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:23:48,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255611598] [2022-12-11 21:23:48,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:23:48,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:23:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:23:50,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:23:50,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:23:50,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255611598] [2022-12-11 21:23:50,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255611598] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:23:50,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:23:50,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:23:50,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897272536] [2022-12-11 21:23:50,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:23:50,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:23:50,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:23:50,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:23:50,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:23:50,245 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 120 [2022-12-11 21:23:50,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 122 transitions, 628 flow. Second operand has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 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) [2022-12-11 21:23:50,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:23:50,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 120 [2022-12-11 21:23:50,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:23:50,633 INFO L130 PetriNetUnfolder]: 6/153 cut-off events. [2022-12-11 21:23:50,633 INFO L131 PetriNetUnfolder]: For 278/311 co-relation queries the response was YES. [2022-12-11 21:23:50,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 153 events. 6/153 cut-off events. For 278/311 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 193 event pairs, 0 based on Foata normal form. 9/162 useless extension candidates. Maximal degree in co-relation 229. Up to 39 conditions per place. [2022-12-11 21:23:50,634 INFO L137 encePairwiseOnDemand]: 112/120 looper letters, 40 selfloop transitions, 3 changer transitions 13/121 dead transitions. [2022-12-11 21:23:50,634 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 121 transitions, 732 flow [2022-12-11 21:23:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 21:23:50,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 21:23:50,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 668 transitions. [2022-12-11 21:23:50,636 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6958333333333333 [2022-12-11 21:23:50,636 INFO L295 CegarLoopForPetriNet]: 116 programPoint places, 18 predicate places. [2022-12-11 21:23:50,636 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 121 transitions, 732 flow [2022-12-11 21:23:50,637 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 108 transitions, 581 flow [2022-12-11 21:23:50,638 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 108 transitions, 581 flow [2022-12-11 21:23:50,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 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) [2022-12-11 21:23:50,638 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:23:50,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:23:50,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 21:23:50,638 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)] === [2022-12-11 21:23:50,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:23:50,639 INFO L85 PathProgramCache]: Analyzing trace with hash 66541051, now seen corresponding path program 5 times [2022-12-11 21:23:50,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:23:50,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50190937] [2022-12-11 21:23:50,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:23:50,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:23:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:23:53,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:23:53,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:23:53,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50190937] [2022-12-11 21:23:53,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50190937] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:23:53,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:23:53,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:23:53,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074113487] [2022-12-11 21:23:53,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:23:53,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:23:53,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:23:53,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:23:53,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:23:53,488 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 120 [2022-12-11 21:23:53,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 108 transitions, 581 flow. Second operand has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 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) [2022-12-11 21:23:53,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:23:53,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 120 [2022-12-11 21:23:53,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:23:53,868 INFO L130 PetriNetUnfolder]: 1/129 cut-off events. [2022-12-11 21:23:53,868 INFO L131 PetriNetUnfolder]: For 338/348 co-relation queries the response was YES. [2022-12-11 21:23:53,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 129 events. 1/129 cut-off events. For 338/348 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 98 event pairs, 0 based on Foata normal form. 3/132 useless extension candidates. Maximal degree in co-relation 98. Up to 35 conditions per place. [2022-12-11 21:23:53,869 INFO L137 encePairwiseOnDemand]: 112/120 looper letters, 37 selfloop transitions, 3 changer transitions 10/115 dead transitions. [2022-12-11 21:23:53,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 115 transitions, 760 flow [2022-12-11 21:23:53,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 21:23:53,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 21:23:53,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 666 transitions. [2022-12-11 21:23:53,871 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.69375 [2022-12-11 21:23:53,872 INFO L295 CegarLoopForPetriNet]: 116 programPoint places, 20 predicate places. [2022-12-11 21:23:53,872 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 115 transitions, 760 flow [2022-12-11 21:23:53,873 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 105 transitions, 628 flow [2022-12-11 21:23:53,873 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 105 transitions, 628 flow [2022-12-11 21:23:53,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 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) [2022-12-11 21:23:53,874 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:23:53,874 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:23:53,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 21:23:53,874 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)] === [2022-12-11 21:23:53,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:23:53,875 INFO L85 PathProgramCache]: Analyzing trace with hash 810193079, now seen corresponding path program 6 times [2022-12-11 21:23:53,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:23:53,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321780132] [2022-12-11 21:23:53,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:23:53,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:23:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:23:55,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:23:55,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:23:55,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321780132] [2022-12-11 21:23:55,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321780132] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:23:55,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:23:55,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:23:55,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843417011] [2022-12-11 21:23:55,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:23:55,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:23:55,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:23:55,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:23:55,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:23:55,798 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 120 [2022-12-11 21:23:55,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 105 transitions, 628 flow. Second operand has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 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) [2022-12-11 21:23:55,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:23:55,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 120 [2022-12-11 21:23:55,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:23:56,133 INFO L130 PetriNetUnfolder]: 0/102 cut-off events. [2022-12-11 21:23:56,133 INFO L131 PetriNetUnfolder]: For 357/357 co-relation queries the response was YES. [2022-12-11 21:23:56,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 102 events. 0/102 cut-off events. For 357/357 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 0 based on Foata normal form. 1/103 useless extension candidates. Maximal degree in co-relation 0. Up to 31 conditions per place. [2022-12-11 21:23:56,133 INFO L137 encePairwiseOnDemand]: 112/120 looper letters, 0 selfloop transitions, 0 changer transitions 102/102 dead transitions. [2022-12-11 21:23:56,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 102 transitions, 690 flow [2022-12-11 21:23:56,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 21:23:56,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 21:23:56,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 656 transitions. [2022-12-11 21:23:56,135 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6833333333333333 [2022-12-11 21:23:56,135 INFO L295 CegarLoopForPetriNet]: 116 programPoint places, 20 predicate places. [2022-12-11 21:23:56,135 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 102 transitions, 690 flow [2022-12-11 21:23:56,135 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 21:23:56,136 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 21:23:56,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 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) [2022-12-11 21:23:56,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 21:23:56,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 21:23:56,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 21:23:56,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 21:23:56,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 21:23:56,139 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2022-12-11 21:23:56,141 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 21:23:56,141 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 21:23:56,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 09:23:56 BasicIcfg [2022-12-11 21:23:56,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 21:23:56,145 INFO L158 Benchmark]: Toolchain (without parser) took 19360.01ms. Allocated memory was 168.8MB in the beginning and 1.0GB in the end (delta: 860.9MB). Free memory was 127.2MB in the beginning and 461.1MB in the end (delta: -334.0MB). Peak memory consumption was 528.5MB. Max. memory is 8.0GB. [2022-12-11 21:23:56,145 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 168.8MB. Free memory is still 145.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 21:23:56,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.36ms. Allocated memory is still 168.8MB. Free memory was 126.6MB in the beginning and 114.6MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-11 21:23:56,146 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.29ms. Allocated memory is still 168.8MB. Free memory was 114.6MB in the beginning and 111.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-11 21:23:56,146 INFO L158 Benchmark]: Boogie Preprocessor took 38.29ms. Allocated memory is still 168.8MB. Free memory was 111.4MB in the beginning and 109.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 21:23:56,146 INFO L158 Benchmark]: RCFGBuilder took 1088.38ms. Allocated memory is still 168.8MB. Free memory was 109.3MB in the beginning and 73.9MB in the end (delta: 35.4MB). Peak memory consumption was 62.7MB. Max. memory is 8.0GB. [2022-12-11 21:23:56,146 INFO L158 Benchmark]: TraceAbstraction took 17930.78ms. Allocated memory was 168.8MB in the beginning and 1.0GB in the end (delta: 860.9MB). Free memory was 72.9MB in the beginning and 461.1MB in the end (delta: -388.3MB). Peak memory consumption was 473.1MB. Max. memory is 8.0GB. [2022-12-11 21:23:56,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 168.8MB. Free memory is still 145.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 250.36ms. Allocated memory is still 168.8MB. Free memory was 126.6MB in the beginning and 114.6MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.29ms. Allocated memory is still 168.8MB. Free memory was 114.6MB in the beginning and 111.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.29ms. Allocated memory is still 168.8MB. Free memory was 111.4MB in the beginning and 109.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1088.38ms. Allocated memory is still 168.8MB. Free memory was 109.3MB in the beginning and 73.9MB in the end (delta: 35.4MB). Peak memory consumption was 62.7MB. Max. memory is 8.0GB. * TraceAbstraction took 17930.78ms. Allocated memory was 168.8MB in the beginning and 1.0GB in the end (delta: 860.9MB). Free memory was 72.9MB in the beginning and 461.1MB in the end (delta: -388.3MB). Peak memory consumption was 473.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 100]: 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, 135 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: 17.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 822 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 636 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 732 IncrementalHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 186 mSDtfsCounter, 732 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=628occurred in iteration=3, InterpolantAutomatonStates: 50, 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, 1231 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 630 NumberOfCodeBlocks, 630 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 624 ConstructedInterpolants, 0 QuantifiedInterpolants, 6008 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! [2022-12-11 21:23:56,177 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...