/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 00:18:56,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 00:18:56,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 00:18:56,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 00:18:56,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 00:18:56,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 00:18:56,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 00:18:56,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 00:18:56,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 00:18:56,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 00:18:56,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 00:18:56,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 00:18:56,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 00:18:56,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 00:18:56,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 00:18:56,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 00:18:56,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 00:18:56,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 00:18:56,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 00:18:56,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 00:18:56,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 00:18:56,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 00:18:56,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 00:18:56,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 00:18:56,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 00:18:56,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 00:18:56,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 00:18:56,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 00:18:56,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 00:18:56,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 00:18:56,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 00:18:56,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 00:18:56,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 00:18:56,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 00:18:56,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 00:18:56,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 00:18:56,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 00:18:56,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 00:18:56,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 00:18:56,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 00:18:56,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 00:18:56,619 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-12 00:18:56,650 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 00:18:56,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 00:18:56,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 00:18:56,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 00:18:56,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 00:18:56,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 00:18:56,653 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 00:18:56,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 00:18:56,653 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 00:18:56,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 00:18:56,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 00:18:56,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 00:18:56,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 00:18:56,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 00:18:56,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 00:18:56,655 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 00:18:56,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 00:18:56,655 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 00:18:56,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 00:18:56,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 00:18:56,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 00:18:56,656 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 00:18:56,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 00:18:56,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 00:18:56,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 00:18:56,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 00:18:56,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 00:18:56,656 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 00:18:56,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 00:18:56,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 00:18:56,657 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 00:18:56,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 00:18:56,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 00:18:56,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 00:18:56,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 00:18:56,947 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 00:18:56,947 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 00:18:56,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2022-12-12 00:18:58,059 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 00:18:58,254 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 00:18:58,255 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2022-12-12 00:18:58,263 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15f16fcba/ab2f2a2c7e1c4b0ea26b340e0ca8d5c4/FLAG48fb56805 [2022-12-12 00:18:58,280 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15f16fcba/ab2f2a2c7e1c4b0ea26b340e0ca8d5c4 [2022-12-12 00:18:58,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 00:18:58,283 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 00:18:58,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 00:18:58,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 00:18:58,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 00:18:58,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:18:58" (1/1) ... [2022-12-12 00:18:58,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@271bc54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:58, skipping insertion in model container [2022-12-12 00:18:58,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:18:58" (1/1) ... [2022-12-12 00:18:58,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 00:18:58,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 00:18:58,485 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c[2333,2346] [2022-12-12 00:18:58,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 00:18:58,505 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 00:18:58,537 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c[2333,2346] [2022-12-12 00:18:58,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 00:18:58,550 INFO L208 MainTranslator]: Completed translation [2022-12-12 00:18:58,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:58 WrapperNode [2022-12-12 00:18:58,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 00:18:58,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 00:18:58,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 00:18:58,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 00:18:58,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:58" (1/1) ... [2022-12-12 00:18:58,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:58" (1/1) ... [2022-12-12 00:18:58,597 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-12-12 00:18:58,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 00:18:58,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 00:18:58,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 00:18:58,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 00:18:58,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:58" (1/1) ... [2022-12-12 00:18:58,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:58" (1/1) ... [2022-12-12 00:18:58,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:58" (1/1) ... [2022-12-12 00:18:58,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:58" (1/1) ... [2022-12-12 00:18:58,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:58" (1/1) ... [2022-12-12 00:18:58,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:58" (1/1) ... [2022-12-12 00:18:58,620 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:58" (1/1) ... [2022-12-12 00:18:58,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:58" (1/1) ... [2022-12-12 00:18:58,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 00:18:58,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 00:18:58,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 00:18:58,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 00:18:58,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:58" (1/1) ... [2022-12-12 00:18:58,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 00:18:58,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 00:18:58,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 00:18:58,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 00:18:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 00:18:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 00:18:58,688 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 00:18:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 00:18:58,688 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 00:18:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 00:18:58,688 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 00:18:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 00:18:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 00:18:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 00:18:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 00:18:58,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 00:18:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 00:18:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 00:18:58,690 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 00:18:58,769 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 00:18:58,771 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 00:18:58,964 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 00:18:58,970 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 00:18:58,971 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 00:18:58,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:18:58 BoogieIcfgContainer [2022-12-12 00:18:58,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 00:18:58,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 00:18:58,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 00:18:58,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 00:18:58,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:18:58" (1/3) ... [2022-12-12 00:18:58,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210802f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:18:58, skipping insertion in model container [2022-12-12 00:18:58,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:58" (2/3) ... [2022-12-12 00:18:58,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210802f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:18:58, skipping insertion in model container [2022-12-12 00:18:58,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:18:58" (3/3) ... [2022-12-12 00:18:58,994 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2022-12-12 00:18:59,025 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 00:18:59,026 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 00:18:59,026 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 00:18:59,116 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 00:18:59,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 87 transitions, 198 flow [2022-12-12 00:18:59,222 INFO L130 PetriNetUnfolder]: 2/84 cut-off events. [2022-12-12 00:18:59,222 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 00:18:59,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 84 events. 2/84 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-12-12 00:18:59,226 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 87 transitions, 198 flow [2022-12-12 00:18:59,232 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 74 transitions, 166 flow [2022-12-12 00:18:59,245 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 00:18:59,252 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;@36b21310, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 00:18:59,252 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 00:18:59,288 INFO L130 PetriNetUnfolder]: 2/73 cut-off events. [2022-12-12 00:18:59,288 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 00:18:59,289 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:18:59,290 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:18:59,291 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:18:59,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:18:59,296 INFO L85 PathProgramCache]: Analyzing trace with hash -329090897, now seen corresponding path program 1 times [2022-12-12 00:18:59,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:18:59,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043811833] [2022-12-12 00:18:59,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:18:59,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:18:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:01,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:01,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:01,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043811833] [2022-12-12 00:19:01,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043811833] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:01,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:01,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:19:01,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482427614] [2022-12-12 00:19:01,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:01,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:19:01,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:01,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:19:01,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:19:01,975 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-12 00:19:01,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 74 transitions, 166 flow. Second operand has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:01,978 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:01,978 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-12 00:19:01,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:02,867 INFO L130 PetriNetUnfolder]: 15/180 cut-off events. [2022-12-12 00:19:02,868 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2022-12-12 00:19:02,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 180 events. 15/180 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 521 event pairs, 5 based on Foata normal form. 6/175 useless extension candidates. Maximal degree in co-relation 137. Up to 30 conditions per place. [2022-12-12 00:19:02,871 INFO L137 encePairwiseOnDemand]: 74/87 looper letters, 39 selfloop transitions, 2 changer transitions 18/103 dead transitions. [2022-12-12 00:19:02,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 103 transitions, 369 flow [2022-12-12 00:19:02,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 00:19:02,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 00:19:02,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 794 transitions. [2022-12-12 00:19:02,886 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7020335985853228 [2022-12-12 00:19:02,889 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 12 predicate places. [2022-12-12 00:19:02,889 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 103 transitions, 369 flow [2022-12-12 00:19:02,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 85 transitions, 285 flow [2022-12-12 00:19:02,892 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 85 transitions, 285 flow [2022-12-12 00:19:02,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:02,892 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:02,892 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:02,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 00:19:02,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:19:02,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:02,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1714481581, now seen corresponding path program 2 times [2022-12-12 00:19:02,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:02,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698731055] [2022-12-12 00:19:02,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:02,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:04,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:04,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:04,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698731055] [2022-12-12 00:19:04,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698731055] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:04,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:04,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:19:04,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225288737] [2022-12-12 00:19:04,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:04,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:19:04,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:04,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:19:04,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:19:04,549 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-12 00:19:04,549 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 85 transitions, 285 flow. Second operand has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:04,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:04,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-12 00:19:04,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:05,872 INFO L130 PetriNetUnfolder]: 11/169 cut-off events. [2022-12-12 00:19:05,872 INFO L131 PetriNetUnfolder]: For 127/184 co-relation queries the response was YES. [2022-12-12 00:19:05,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 169 events. 11/169 cut-off events. For 127/184 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 473 event pairs, 0 based on Foata normal form. 8/177 useless extension candidates. Maximal degree in co-relation 159. Up to 40 conditions per place. [2022-12-12 00:19:05,873 INFO L137 encePairwiseOnDemand]: 78/87 looper letters, 42 selfloop transitions, 3 changer transitions 12/101 dead transitions. [2022-12-12 00:19:05,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 101 transitions, 481 flow [2022-12-12 00:19:05,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 00:19:05,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 00:19:05,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 614 transitions. [2022-12-12 00:19:05,890 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7057471264367816 [2022-12-12 00:19:05,890 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 10 predicate places. [2022-12-12 00:19:05,890 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 101 transitions, 481 flow [2022-12-12 00:19:05,892 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 89 transitions, 397 flow [2022-12-12 00:19:05,892 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 89 transitions, 397 flow [2022-12-12 00:19:05,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:05,892 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:05,893 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:05,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 00:19:05,893 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:19:05,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:05,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1722961321, now seen corresponding path program 3 times [2022-12-12 00:19:05,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:05,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247815459] [2022-12-12 00:19:05,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:05,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:07,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:07,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:07,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247815459] [2022-12-12 00:19:07,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247815459] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:07,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:07,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:19:07,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669930046] [2022-12-12 00:19:07,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:07,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:19:07,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:07,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:19:07,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:19:07,569 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-12 00:19:07,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 89 transitions, 397 flow. Second operand has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:07,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:07,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-12 00:19:07,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:08,495 INFO L130 PetriNetUnfolder]: 8/172 cut-off events. [2022-12-12 00:19:08,495 INFO L131 PetriNetUnfolder]: For 242/368 co-relation queries the response was YES. [2022-12-12 00:19:08,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 172 events. 8/172 cut-off events. For 242/368 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 512 event pairs, 0 based on Foata normal form. 9/181 useless extension candidates. Maximal degree in co-relation 193. Up to 35 conditions per place. [2022-12-12 00:19:08,496 INFO L137 encePairwiseOnDemand]: 78/87 looper letters, 43 selfloop transitions, 4 changer transitions 19/110 dead transitions. [2022-12-12 00:19:08,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 110 transitions, 682 flow [2022-12-12 00:19:08,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 00:19:08,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 00:19:08,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 613 transitions. [2022-12-12 00:19:08,498 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7045977011494253 [2022-12-12 00:19:08,499 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 13 predicate places. [2022-12-12 00:19:08,499 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 110 transitions, 682 flow [2022-12-12 00:19:08,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 91 transitions, 506 flow [2022-12-12 00:19:08,500 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 91 transitions, 506 flow [2022-12-12 00:19:08,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:08,501 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:08,501 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:08,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 00:19:08,501 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:19:08,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:08,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1566288253, now seen corresponding path program 4 times [2022-12-12 00:19:08,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:08,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156349895] [2022-12-12 00:19:08,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:08,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:09,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:09,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:09,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156349895] [2022-12-12 00:19:09,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156349895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:09,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:09,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:19:09,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371746368] [2022-12-12 00:19:09,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:09,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:19:09,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:09,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:19:09,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:19:09,796 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-12 00:19:09,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 91 transitions, 506 flow. Second operand has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:09,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:09,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-12 00:19:09,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:10,383 INFO L130 PetriNetUnfolder]: 6/119 cut-off events. [2022-12-12 00:19:10,383 INFO L131 PetriNetUnfolder]: For 234/294 co-relation queries the response was YES. [2022-12-12 00:19:10,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 119 events. 6/119 cut-off events. For 234/294 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 199 event pairs, 0 based on Foata normal form. 12/131 useless extension candidates. Maximal degree in co-relation 140. Up to 23 conditions per place. [2022-12-12 00:19:10,384 INFO L137 encePairwiseOnDemand]: 78/87 looper letters, 28 selfloop transitions, 1 changer transitions 17/90 dead transitions. [2022-12-12 00:19:10,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 90 transitions, 590 flow [2022-12-12 00:19:10,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 00:19:10,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 00:19:10,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 602 transitions. [2022-12-12 00:19:10,388 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6919540229885057 [2022-12-12 00:19:10,389 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 16 predicate places. [2022-12-12 00:19:10,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 90 transitions, 590 flow [2022-12-12 00:19:10,391 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 73 transitions, 399 flow [2022-12-12 00:19:10,391 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 73 transitions, 399 flow [2022-12-12 00:19:10,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:10,392 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:10,392 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:10,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 00:19:10,392 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:19:10,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:10,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1404659763, now seen corresponding path program 5 times [2022-12-12 00:19:10,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:10,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138330511] [2022-12-12 00:19:10,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:10,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:11,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:11,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:11,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138330511] [2022-12-12 00:19:11,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138330511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:11,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:11,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:19:11,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960893052] [2022-12-12 00:19:11,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:11,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:19:11,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:11,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:19:11,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:19:11,454 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-12 00:19:11,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 73 transitions, 399 flow. Second operand has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:11,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:11,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-12 00:19:11,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:12,019 INFO L130 PetriNetUnfolder]: 1/99 cut-off events. [2022-12-12 00:19:12,019 INFO L131 PetriNetUnfolder]: For 252/264 co-relation queries the response was YES. [2022-12-12 00:19:12,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 99 events. 1/99 cut-off events. For 252/264 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 113 event pairs, 0 based on Foata normal form. 3/102 useless extension candidates. Maximal degree in co-relation 99. Up to 23 conditions per place. [2022-12-12 00:19:12,020 INFO L137 encePairwiseOnDemand]: 78/87 looper letters, 25 selfloop transitions, 1 changer transitions 14/84 dead transitions. [2022-12-12 00:19:12,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 84 transitions, 598 flow [2022-12-12 00:19:12,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 00:19:12,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 00:19:12,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 600 transitions. [2022-12-12 00:19:12,022 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6896551724137931 [2022-12-12 00:19:12,022 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 17 predicate places. [2022-12-12 00:19:12,022 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 84 transitions, 598 flow [2022-12-12 00:19:12,023 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 70 transitions, 418 flow [2022-12-12 00:19:12,023 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 70 transitions, 418 flow [2022-12-12 00:19:12,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:12,024 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 00:19:12,024 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 00:19:12,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 00:19:12,024 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 00:19:12,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 00:19:12,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1374766127, now seen corresponding path program 6 times [2022-12-12 00:19:12,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 00:19:12,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145090950] [2022-12-12 00:19:12,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 00:19:12,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 00:19:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 00:19:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 00:19:13,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 00:19:13,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145090950] [2022-12-12 00:19:13,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145090950] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 00:19:13,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 00:19:13,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-12 00:19:13,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041778412] [2022-12-12 00:19:13,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 00:19:13,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-12 00:19:13,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 00:19:13,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-12 00:19:13,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 00:19:13,057 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2022-12-12 00:19:13,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 70 transitions, 418 flow. Second operand has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:13,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 00:19:13,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2022-12-12 00:19:13,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 00:19:13,878 INFO L130 PetriNetUnfolder]: 0/67 cut-off events. [2022-12-12 00:19:13,878 INFO L131 PetriNetUnfolder]: For 222/222 co-relation queries the response was YES. [2022-12-12 00:19:13,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 67 events. 0/67 cut-off events. For 222/222 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 0 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2022-12-12 00:19:13,879 INFO L137 encePairwiseOnDemand]: 78/87 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2022-12-12 00:19:13,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 67 transitions, 452 flow [2022-12-12 00:19:13,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 00:19:13,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 00:19:13,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 586 transitions. [2022-12-12 00:19:13,880 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6735632183908046 [2022-12-12 00:19:13,881 INFO L295 CegarLoopForPetriNet]: 82 programPoint places, 16 predicate places. [2022-12-12 00:19:13,881 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 67 transitions, 452 flow [2022-12-12 00:19:13,881 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 00:19:13,881 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 00:19:13,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.6) internal successors, (586), 10 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 00:19:13,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 00:19:13,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 00:19:13,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 00:19:13,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 00:19:13,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 00:19:13,884 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2022-12-12 00:19:13,887 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 00:19:13,887 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 00:19:13,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 12:19:13 BasicIcfg [2022-12-12 00:19:13,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 00:19:13,891 INFO L158 Benchmark]: Toolchain (without parser) took 15607.60ms. Allocated memory was 170.9MB in the beginning and 618.7MB in the end (delta: 447.7MB). Free memory was 147.7MB in the beginning and 283.5MB in the end (delta: -135.8MB). Peak memory consumption was 312.4MB. Max. memory is 8.0GB. [2022-12-12 00:19:13,891 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 170.9MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 00:19:13,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.62ms. Allocated memory is still 170.9MB. Free memory was 147.2MB in the beginning and 136.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-12 00:19:13,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.53ms. Allocated memory is still 170.9MB. Free memory was 136.2MB in the beginning and 134.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 00:19:13,892 INFO L158 Benchmark]: Boogie Preprocessor took 23.53ms. Allocated memory is still 170.9MB. Free memory was 134.6MB in the beginning and 133.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 00:19:13,892 INFO L158 Benchmark]: RCFGBuilder took 349.31ms. Allocated memory is still 170.9MB. Free memory was 133.5MB in the beginning and 120.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 00:19:13,892 INFO L158 Benchmark]: TraceAbstraction took 14916.06ms. Allocated memory was 170.9MB in the beginning and 618.7MB in the end (delta: 447.7MB). Free memory was 119.4MB in the beginning and 283.5MB in the end (delta: -164.2MB). Peak memory consumption was 285.2MB. Max. memory is 8.0GB. [2022-12-12 00:19:13,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 170.9MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 267.62ms. Allocated memory is still 170.9MB. Free memory was 147.2MB in the beginning and 136.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.53ms. Allocated memory is still 170.9MB. Free memory was 136.2MB in the beginning and 134.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.53ms. Allocated memory is still 170.9MB. Free memory was 134.6MB in the beginning and 133.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 349.31ms. Allocated memory is still 170.9MB. Free memory was 133.5MB in the beginning and 120.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 14916.06ms. Allocated memory was 170.9MB in the beginning and 618.7MB in the end (delta: 447.7MB). Free memory was 119.4MB in the beginning and 283.5MB in the end (delta: -164.2MB). Peak memory consumption was 285.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 77]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 101 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 273 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 273 mSDsluCounter, 536 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 410 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 890 IncrementalHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 126 mSDtfsCounter, 890 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=506occurred in iteration=3, InterpolantAutomatonStates: 63, 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, 1167 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 420 NumberOfCodeBlocks, 420 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 414 ConstructedInterpolants, 0 QuantifiedInterpolants, 7995 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 00:19:13,920 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...