/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-time-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 17:20:55,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 17:20:55,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 17:20:55,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 17:20:55,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 17:20:55,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 17:20:55,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 17:20:55,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 17:20:55,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 17:20:55,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 17:20:55,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 17:20:55,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 17:20:55,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 17:20:55,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 17:20:55,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 17:20:55,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 17:20:55,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 17:20:55,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 17:20:55,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 17:20:55,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 17:20:55,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 17:20:55,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 17:20:55,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 17:20:55,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 17:20:55,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 17:20:55,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 17:20:55,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 17:20:55,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 17:20:55,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 17:20:55,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 17:20:55,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 17:20:55,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 17:20:55,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 17:20:55,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 17:20:55,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 17:20:55,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 17:20:55,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 17:20:55,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 17:20:55,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 17:20:55,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 17:20:55,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 17:20:55,759 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 [2022-12-06 17:20:55,782 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 17:20:55,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 17:20:55,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 17:20:55,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 17:20:55,784 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 17:20:55,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 17:20:55,785 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 17:20:55,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 17:20:55,785 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 17:20:55,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 17:20:55,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 17:20:55,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 17:20:55,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 17:20:55,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 17:20:55,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 17:20:55,786 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 17:20:55,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 17:20:55,787 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 17:20:55,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 17:20:55,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 17:20:55,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 17:20:55,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 17:20:55,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 17:20:55,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:20:55,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 17:20:55,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 17:20:55,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 17:20:55,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 17:20:55,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 17:20:55,788 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 17:20:55,788 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 17:20:55,788 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 17:20:56,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 17:20:56,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 17:20:56,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 17:20:56,049 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 17:20:56,054 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 17:20:56,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-time-subst.wvr.c [2022-12-06 17:20:56,993 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 17:20:57,179 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 17:20:57,180 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-time-subst.wvr.c [2022-12-06 17:20:57,184 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36b6e0013/d61e0d1012db4ed5b34bed90ef002686/FLAG4aab48931 [2022-12-06 17:20:57,194 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36b6e0013/d61e0d1012db4ed5b34bed90ef002686 [2022-12-06 17:20:57,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 17:20:57,197 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 17:20:57,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 17:20:57,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 17:20:57,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 17:20:57,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:20:57" (1/1) ... [2022-12-06 17:20:57,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cede241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:20:57, skipping insertion in model container [2022-12-06 17:20:57,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:20:57" (1/1) ... [2022-12-06 17:20:57,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 17:20:57,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 17:20:57,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:20:57,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:20:57,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:20:57,307 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:20:57,307 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:20:57,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:20:57,314 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-time-subst.wvr.c[2879,2892] [2022-12-06 17:20:57,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:20:57,324 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 17:20:57,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:20:57,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:20:57,334 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:20:57,334 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:20:57,334 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:20:57,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:20:57,339 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-time-subst.wvr.c[2879,2892] [2022-12-06 17:20:57,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:20:57,349 INFO L208 MainTranslator]: Completed translation [2022-12-06 17:20:57,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:20:57 WrapperNode [2022-12-06 17:20:57,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 17:20:57,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 17:20:57,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 17:20:57,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 17:20:57,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:20:57" (1/1) ... [2022-12-06 17:20:57,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:20:57" (1/1) ... [2022-12-06 17:20:57,395 INFO L138 Inliner]: procedures = 23, calls = 39, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 214 [2022-12-06 17:20:57,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 17:20:57,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 17:20:57,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 17:20:57,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 17:20:57,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:20:57" (1/1) ... [2022-12-06 17:20:57,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:20:57" (1/1) ... [2022-12-06 17:20:57,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:20:57" (1/1) ... [2022-12-06 17:20:57,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:20:57" (1/1) ... [2022-12-06 17:20:57,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:20:57" (1/1) ... [2022-12-06 17:20:57,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:20:57" (1/1) ... [2022-12-06 17:20:57,423 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:20:57" (1/1) ... [2022-12-06 17:20:57,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:20:57" (1/1) ... [2022-12-06 17:20:57,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 17:20:57,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 17:20:57,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 17:20:57,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 17:20:57,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:20:57" (1/1) ... [2022-12-06 17:20:57,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:20:57,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:20:57,469 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) [2022-12-06 17:20:57,488 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 [2022-12-06 17:20:57,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 17:20:57,499 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 17:20:57,499 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 17:20:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 17:20:57,500 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 17:20:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 17:20:57,500 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 17:20:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 17:20:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 17:20:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 17:20:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 17:20:57,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 17:20:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 17:20:57,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 17:20:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 17:20:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 17:20:57,502 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 17:20:57,623 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 17:20:57,624 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 17:20:57,821 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 17:20:58,006 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 17:20:58,006 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 17:20:58,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:20:58 BoogieIcfgContainer [2022-12-06 17:20:58,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 17:20:58,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 17:20:58,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 17:20:58,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 17:20:58,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:20:57" (1/3) ... [2022-12-06 17:20:58,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7383d57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:20:58, skipping insertion in model container [2022-12-06 17:20:58,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:20:57" (2/3) ... [2022-12-06 17:20:58,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7383d57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:20:58, skipping insertion in model container [2022-12-06 17:20:58,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:20:58" (3/3) ... [2022-12-06 17:20:58,014 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-time-subst.wvr.c [2022-12-06 17:20:58,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 17:20:58,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 17:20:58,027 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 17:20:58,083 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 17:20:58,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 105 transitions, 234 flow [2022-12-06 17:20:58,169 INFO L130 PetriNetUnfolder]: 1/102 cut-off events. [2022-12-06 17:20:58,169 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 17:20:58,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 102 events. 1/102 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. 0/100 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2022-12-06 17:20:58,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 105 transitions, 234 flow [2022-12-06 17:20:58,177 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 92 transitions, 202 flow [2022-12-06 17:20:58,185 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 17:20:58,190 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;@7b7dd948, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 17:20:58,191 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 17:20:58,238 INFO L130 PetriNetUnfolder]: 1/91 cut-off events. [2022-12-06 17:20:58,238 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 17:20:58,238 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:20:58,239 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:20:58,239 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)] === [2022-12-06 17:20:58,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:20:58,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1228804642, now seen corresponding path program 1 times [2022-12-06 17:20:58,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:20:58,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377124485] [2022-12-06 17:20:58,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:20:58,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:20:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:21:00,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:21:00,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:21:00,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377124485] [2022-12-06 17:21:00,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377124485] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:21:00,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:21:00,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 17:21:00,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613039320] [2022-12-06 17:21:00,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:21:00,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 17:21:00,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:21:00,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 17:21:00,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 17:21:00,352 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 105 [2022-12-06 17:21:00,354 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 92 transitions, 202 flow. Second operand has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-06 17:21:00,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:21:00,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 105 [2022-12-06 17:21:00,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:21:00,966 INFO L130 PetriNetUnfolder]: 14/180 cut-off events. [2022-12-06 17:21:00,966 INFO L131 PetriNetUnfolder]: For 49/56 co-relation queries the response was YES. [2022-12-06 17:21:00,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 180 events. 14/180 cut-off events. For 49/56 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 434 event pairs, 7 based on Foata normal form. 5/177 useless extension candidates. Maximal degree in co-relation 129. Up to 39 conditions per place. [2022-12-06 17:21:00,968 INFO L137 encePairwiseOnDemand]: 97/105 looper letters, 40 selfloop transitions, 2 changer transitions 10/111 dead transitions. [2022-12-06 17:21:00,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 111 transitions, 368 flow [2022-12-06 17:21:00,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:21:00,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:21:00,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 695 transitions. [2022-12-06 17:21:00,989 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7354497354497355 [2022-12-06 17:21:00,992 INFO L294 CegarLoopForPetriNet]: 101 programPoint places, 8 predicate places. [2022-12-06 17:21:00,992 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 111 transitions, 368 flow [2022-12-06 17:21:00,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-06 17:21:00,992 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:21:00,992 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:21:00,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 17:21:00,993 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)] === [2022-12-06 17:21:00,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:21:00,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1119445214, now seen corresponding path program 2 times [2022-12-06 17:21:00,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:21:00,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669251] [2022-12-06 17:21:00,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:21:00,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:21:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:21:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:21:02,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:21:02,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669251] [2022-12-06 17:21:02,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669251] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:21:02,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:21:02,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 17:21:02,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455135411] [2022-12-06 17:21:02,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:21:02,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 17:21:02,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:21:02,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 17:21:02,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 17:21:02,128 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 105 [2022-12-06 17:21:02,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 111 transitions, 368 flow. Second operand has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-06 17:21:02,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:21:02,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 105 [2022-12-06 17:21:02,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:21:02,615 INFO L130 PetriNetUnfolder]: 14/225 cut-off events. [2022-12-06 17:21:02,615 INFO L131 PetriNetUnfolder]: For 179/373 co-relation queries the response was YES. [2022-12-06 17:21:02,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 225 events. 14/225 cut-off events. For 179/373 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 773 event pairs, 1 based on Foata normal form. 11/231 useless extension candidates. Maximal degree in co-relation 199. Up to 42 conditions per place. [2022-12-06 17:21:02,619 INFO L137 encePairwiseOnDemand]: 98/105 looper letters, 50 selfloop transitions, 3 changer transitions 23/135 dead transitions. [2022-12-06 17:21:02,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 135 transitions, 649 flow [2022-12-06 17:21:02,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:21:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:21:02,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 693 transitions. [2022-12-06 17:21:02,621 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2022-12-06 17:21:02,622 INFO L294 CegarLoopForPetriNet]: 101 programPoint places, 16 predicate places. [2022-12-06 17:21:02,622 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 135 transitions, 649 flow [2022-12-06 17:21:02,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-06 17:21:02,623 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:21:02,623 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:21:02,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 17:21:02,624 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)] === [2022-12-06 17:21:02,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:21:02,624 INFO L85 PathProgramCache]: Analyzing trace with hash 2007504300, now seen corresponding path program 3 times [2022-12-06 17:21:02,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:21:02,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770522792] [2022-12-06 17:21:02,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:21:02,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:21:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:21:03,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:21:03,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:21:03,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770522792] [2022-12-06 17:21:03,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770522792] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:21:03,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:21:03,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 17:21:03,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771389331] [2022-12-06 17:21:03,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:21:03,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 17:21:03,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:21:03,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 17:21:03,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 17:21:03,505 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 105 [2022-12-06 17:21:03,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 135 transitions, 649 flow. Second operand has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-06 17:21:03,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:21:03,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 105 [2022-12-06 17:21:03,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:21:03,825 INFO L130 PetriNetUnfolder]: 14/227 cut-off events. [2022-12-06 17:21:03,825 INFO L131 PetriNetUnfolder]: For 320/406 co-relation queries the response was YES. [2022-12-06 17:21:03,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 227 events. 14/227 cut-off events. For 320/406 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 743 event pairs, 0 based on Foata normal form. 15/240 useless extension candidates. Maximal degree in co-relation 172. Up to 42 conditions per place. [2022-12-06 17:21:03,826 INFO L137 encePairwiseOnDemand]: 98/105 looper letters, 44 selfloop transitions, 4 changer transitions 36/143 dead transitions. [2022-12-06 17:21:03,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 143 transitions, 880 flow [2022-12-06 17:21:03,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:21:03,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:21:03,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 693 transitions. [2022-12-06 17:21:03,828 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2022-12-06 17:21:03,828 INFO L294 CegarLoopForPetriNet]: 101 programPoint places, 24 predicate places. [2022-12-06 17:21:03,829 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 143 transitions, 880 flow [2022-12-06 17:21:03,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-06 17:21:03,829 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:21:03,829 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:21:03,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 17:21:03,829 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)] === [2022-12-06 17:21:03,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:21:03,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1476551292, now seen corresponding path program 4 times [2022-12-06 17:21:03,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:21:03,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015295670] [2022-12-06 17:21:03,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:21:03,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:21:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:21:04,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:21:04,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:21:04,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015295670] [2022-12-06 17:21:04,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015295670] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:21:04,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:21:04,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 17:21:04,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509478400] [2022-12-06 17:21:04,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:21:04,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 17:21:04,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:21:04,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 17:21:04,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 17:21:04,755 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 105 [2022-12-06 17:21:04,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 143 transitions, 880 flow. Second operand has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-06 17:21:04,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:21:04,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 105 [2022-12-06 17:21:04,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:21:05,112 INFO L130 PetriNetUnfolder]: 14/223 cut-off events. [2022-12-06 17:21:05,112 INFO L131 PetriNetUnfolder]: For 525/654 co-relation queries the response was YES. [2022-12-06 17:21:05,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 223 events. 14/223 cut-off events. For 525/654 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 732 event pairs, 0 based on Foata normal form. 23/245 useless extension candidates. Maximal degree in co-relation 197. Up to 42 conditions per place. [2022-12-06 17:21:05,115 INFO L137 encePairwiseOnDemand]: 98/105 looper letters, 33 selfloop transitions, 1 changer transitions 49/142 dead transitions. [2022-12-06 17:21:05,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 142 transitions, 1038 flow [2022-12-06 17:21:05,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:21:05,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:21:05,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 691 transitions. [2022-12-06 17:21:05,117 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7312169312169312 [2022-12-06 17:21:05,118 INFO L294 CegarLoopForPetriNet]: 101 programPoint places, 32 predicate places. [2022-12-06 17:21:05,118 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 142 transitions, 1038 flow [2022-12-06 17:21:05,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-06 17:21:05,118 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:21:05,118 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:21:05,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 17:21:05,119 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)] === [2022-12-06 17:21:05,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:21:05,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1655739736, now seen corresponding path program 5 times [2022-12-06 17:21:05,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:21:05,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686225867] [2022-12-06 17:21:05,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:21:05,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:21:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:21:06,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:21:06,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:21:06,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686225867] [2022-12-06 17:21:06,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686225867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:21:06,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:21:06,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 17:21:06,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841628463] [2022-12-06 17:21:06,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:21:06,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 17:21:06,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:21:06,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 17:21:06,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 17:21:06,040 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 105 [2022-12-06 17:21:06,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 142 transitions, 1038 flow. Second operand has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-06 17:21:06,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:21:06,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 105 [2022-12-06 17:21:06,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:21:06,417 INFO L130 PetriNetUnfolder]: 13/236 cut-off events. [2022-12-06 17:21:06,417 INFO L131 PetriNetUnfolder]: For 951/2236 co-relation queries the response was YES. [2022-12-06 17:21:06,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 236 events. 13/236 cut-off events. For 951/2236 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 862 event pairs, 0 based on Foata normal form. 44/279 useless extension candidates. Maximal degree in co-relation 342. Up to 42 conditions per place. [2022-12-06 17:21:06,418 INFO L137 encePairwiseOnDemand]: 98/105 looper letters, 30 selfloop transitions, 1 changer transitions 60/150 dead transitions. [2022-12-06 17:21:06,419 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 150 transitions, 1309 flow [2022-12-06 17:21:06,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:21:06,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:21:06,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 691 transitions. [2022-12-06 17:21:06,424 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7312169312169312 [2022-12-06 17:21:06,426 INFO L294 CegarLoopForPetriNet]: 101 programPoint places, 40 predicate places. [2022-12-06 17:21:06,426 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 150 transitions, 1309 flow [2022-12-06 17:21:06,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-06 17:21:06,426 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:21:06,426 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:21:06,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 17:21:06,427 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)] === [2022-12-06 17:21:06,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:21:06,428 INFO L85 PathProgramCache]: Analyzing trace with hash 709887222, now seen corresponding path program 6 times [2022-12-06 17:21:06,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:21:06,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101504659] [2022-12-06 17:21:06,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:21:06,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:21:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:21:07,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:21:07,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:21:07,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101504659] [2022-12-06 17:21:07,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101504659] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:21:07,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:21:07,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 17:21:07,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353989295] [2022-12-06 17:21:07,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:21:07,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 17:21:07,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:21:07,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 17:21:07,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 17:21:07,153 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 105 [2022-12-06 17:21:07,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 150 transitions, 1309 flow. Second operand has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-06 17:21:07,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:21:07,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 105 [2022-12-06 17:21:07,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:21:07,552 INFO L130 PetriNetUnfolder]: 13/239 cut-off events. [2022-12-06 17:21:07,552 INFO L131 PetriNetUnfolder]: For 1144/1270 co-relation queries the response was YES. [2022-12-06 17:21:07,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 239 events. 13/239 cut-off events. For 1144/1270 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 894 event pairs, 0 based on Foata normal form. 22/261 useless extension candidates. Maximal degree in co-relation 262. Up to 42 conditions per place. [2022-12-06 17:21:07,553 INFO L137 encePairwiseOnDemand]: 98/105 looper letters, 0 selfloop transitions, 0 changer transitions 147/147 dead transitions. [2022-12-06 17:21:07,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 147 transitions, 1473 flow [2022-12-06 17:21:07,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:21:07,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:21:07,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 690 transitions. [2022-12-06 17:21:07,555 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7301587301587301 [2022-12-06 17:21:07,555 INFO L294 CegarLoopForPetriNet]: 101 programPoint places, 45 predicate places. [2022-12-06 17:21:07,555 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 147 transitions, 1473 flow [2022-12-06 17:21:07,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.42857142857143) internal successors, (528), 7 states have internal predecessors, (528), 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) [2022-12-06 17:21:07,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 17:21:07,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 17:21:07,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 17:21:07,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 17:21:07,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 17:21:07,558 INFO L458 BasicCegarLoop]: Path program histogram: [6] [2022-12-06 17:21:07,561 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 17:21:07,562 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 17:21:07,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:21:07 BasicIcfg [2022-12-06 17:21:07,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 17:21:07,569 INFO L158 Benchmark]: Toolchain (without parser) took 10371.97ms. Allocated memory was 186.6MB in the beginning and 621.8MB in the end (delta: 435.2MB). Free memory was 162.3MB in the beginning and 230.3MB in the end (delta: -68.0MB). Peak memory consumption was 367.0MB. Max. memory is 8.0GB. [2022-12-06 17:21:07,569 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 162.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 17:21:07,569 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.35ms. Allocated memory is still 186.6MB. Free memory was 161.7MB in the beginning and 149.8MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 17:21:07,570 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.09ms. Allocated memory is still 186.6MB. Free memory was 149.8MB in the beginning and 147.0MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 17:21:07,573 INFO L158 Benchmark]: Boogie Preprocessor took 29.28ms. Allocated memory is still 186.6MB. Free memory was 147.0MB in the beginning and 145.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 17:21:07,573 INFO L158 Benchmark]: RCFGBuilder took 582.07ms. Allocated memory is still 186.6MB. Free memory was 145.4MB in the beginning and 85.7MB in the end (delta: 59.8MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. [2022-12-06 17:21:07,573 INFO L158 Benchmark]: TraceAbstraction took 9558.80ms. Allocated memory was 186.6MB in the beginning and 621.8MB in the end (delta: 435.2MB). Free memory was 85.1MB in the beginning and 230.3MB in the end (delta: -145.2MB). Peak memory consumption was 289.4MB. Max. memory is 8.0GB. [2022-12-06 17:21:07,574 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 162.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 152.35ms. Allocated memory is still 186.6MB. Free memory was 161.7MB in the beginning and 149.8MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.09ms. Allocated memory is still 186.6MB. Free memory was 149.8MB in the beginning and 147.0MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.28ms. Allocated memory is still 186.6MB. Free memory was 147.0MB in the beginning and 145.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 582.07ms. Allocated memory is still 186.6MB. Free memory was 145.4MB in the beginning and 85.7MB in the end (delta: 59.8MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. * TraceAbstraction took 9558.80ms. Allocated memory was 186.6MB in the beginning and 621.8MB in the end (delta: 435.2MB). Free memory was 85.1MB in the beginning and 230.3MB in the end (delta: -145.2MB). Peak memory consumption was 289.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: 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, 120 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: 9.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 174 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 174 mSDsluCounter, 599 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 453 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 804 IncrementalHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 146 mSDtfsCounter, 804 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1473occurred in iteration=6, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 534 ConstructedInterpolants, 0 QuantifiedInterpolants, 6317 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! [2022-12-06 17:21:07,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...