./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c --full-output -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c2bbc92 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d5ef3f658ba17e6b7b992b9d7d7cee734b6c2281 -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-05 22:33:40,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-05 22:33:40,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-05 22:33:40,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-05 22:33:40,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-05 22:33:40,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-05 22:33:40,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-05 22:33:40,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-05 22:33:40,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-05 22:33:40,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-05 22:33:40,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-05 22:33:40,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-05 22:33:40,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-05 22:33:40,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-05 22:33:40,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-05 22:33:40,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-05 22:33:40,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-05 22:33:40,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-05 22:33:40,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-05 22:33:40,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-05 22:33:40,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-05 22:33:40,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-05 22:33:40,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-05 22:33:40,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-05 22:33:40,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-05 22:33:40,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-05 22:33:40,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-05 22:33:40,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-05 22:33:40,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-05 22:33:40,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-05 22:33:40,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-05 22:33:40,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-05 22:33:40,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-05 22:33:40,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-05 22:33:40,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-05 22:33:40,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-05 22:33:40,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-05 22:33:40,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-05 22:33:40,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-05 22:33:40,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-05 22:33:40,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-05 22:33:40,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-05 22:33:40,650 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-05 22:33:40,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-05 22:33:40,651 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-05 22:33:40,652 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-05 22:33:40,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-05 22:33:40,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-05 22:33:40,654 INFO L138 SettingsManager]: * Use SBE=true [2021-10-05 22:33:40,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-05 22:33:40,655 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-05 22:33:40,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-05 22:33:40,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-05 22:33:40,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-05 22:33:40,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-05 22:33:40,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-05 22:33:40,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-05 22:33:40,658 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-05 22:33:40,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-05 22:33:40,658 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-05 22:33:40,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-05 22:33:40,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-05 22:33:40,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-05 22:33:40,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-05 22:33:40,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 22:33:40,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-05 22:33:40,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-05 22:33:40,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-05 22:33:40,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-05 22:33:40,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-05 22:33:40,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-05 22:33:40,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-05 22:33:40,662 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5ef3f658ba17e6b7b992b9d7d7cee734b6c2281 [2021-10-05 22:33:41,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-05 22:33:41,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-05 22:33:41,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-05 22:33:41,133 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-05 22:33:41,133 INFO L275 PluginConnector]: CDTParser initialized [2021-10-05 22:33:41,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c [2021-10-05 22:33:41,216 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84f71d5f2/d790baf0f76242bc99819eb0c80b23e7/FLAG691bc8847 [2021-10-05 22:33:41,846 INFO L306 CDTParser]: Found 1 translation units. [2021-10-05 22:33:41,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c [2021-10-05 22:33:41,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84f71d5f2/d790baf0f76242bc99819eb0c80b23e7/FLAG691bc8847 [2021-10-05 22:33:42,156 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84f71d5f2/d790baf0f76242bc99819eb0c80b23e7 [2021-10-05 22:33:42,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-05 22:33:42,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-05 22:33:42,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-05 22:33:42,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-05 22:33:42,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-05 22:33:42,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:33:42" (1/1) ... [2021-10-05 22:33:42,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b46f428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:33:42, skipping insertion in model container [2021-10-05 22:33:42,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:33:42" (1/1) ... [2021-10-05 22:33:42,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-05 22:33:42,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-05 22:33:42,520 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c[2494,2507] [2021-10-05 22:33:42,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 22:33:42,538 INFO L203 MainTranslator]: Completed pre-run [2021-10-05 22:33:42,586 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c[2494,2507] [2021-10-05 22:33:42,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 22:33:42,608 INFO L208 MainTranslator]: Completed translation [2021-10-05 22:33:42,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:33:42 WrapperNode [2021-10-05 22:33:42,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-05 22:33:42,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-05 22:33:42,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-05 22:33:42,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-05 22:33:42,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:33:42" (1/1) ... [2021-10-05 22:33:42,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:33:42" (1/1) ... [2021-10-05 22:33:42,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-05 22:33:42,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-05 22:33:42,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-05 22:33:42,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-05 22:33:42,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:33:42" (1/1) ... [2021-10-05 22:33:42,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:33:42" (1/1) ... [2021-10-05 22:33:42,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:33:42" (1/1) ... [2021-10-05 22:33:42,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:33:42" (1/1) ... [2021-10-05 22:33:42,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:33:42" (1/1) ... [2021-10-05 22:33:42,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:33:42" (1/1) ... [2021-10-05 22:33:42,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:33:42" (1/1) ... [2021-10-05 22:33:42,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-05 22:33:42,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-05 22:33:42,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-05 22:33:42,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-05 22:33:42,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:33:42" (1/1) ... [2021-10-05 22:33:42,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 22:33:42,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:33:42,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-05 22:33:42,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-05 22:33:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-05 22:33:42,855 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-05 22:33:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-05 22:33:42,855 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-05 22:33:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-05 22:33:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-05 22:33:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-05 22:33:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-05 22:33:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-05 22:33:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-05 22:33:42,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-05 22:33:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-05 22:33:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-05 22:33:42,858 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-05 22:33:43,408 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-05 22:33:43,408 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-05 22:33:43,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:33:43 BoogieIcfgContainer [2021-10-05 22:33:43,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-05 22:33:43,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-05 22:33:43,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-05 22:33:43,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-05 22:33:43,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:33:42" (1/3) ... [2021-10-05 22:33:43,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd8233a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:33:43, skipping insertion in model container [2021-10-05 22:33:43,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:33:42" (2/3) ... [2021-10-05 22:33:43,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd8233a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:33:43, skipping insertion in model container [2021-10-05 22:33:43,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:33:43" (3/3) ... [2021-10-05 22:33:43,426 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth.wvr.c [2021-10-05 22:33:43,435 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-05 22:33:43,436 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-05 22:33:43,437 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-05 22:33:43,437 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-05 22:33:43,487 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,488 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,489 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,489 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,490 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,490 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,490 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,493 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,494 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,494 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,494 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,495 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,496 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,496 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,497 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,497 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,497 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,497 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,498 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,498 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,498 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,498 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,499 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,499 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,499 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,500 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,500 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,501 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,501 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,502 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,502 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,502 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,502 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,502 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,511 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,512 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,512 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,512 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,512 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,517 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,517 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,517 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,518 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:33:43,539 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-05 22:33:43,617 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-05 22:33:43,630 INFO L339 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=true, mConcurrency=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-05 22:33:43,630 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-05 22:33:43,655 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-05 22:33:43,670 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 124 transitions, 264 flow [2021-10-05 22:33:43,674 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 124 transitions, 264 flow [2021-10-05 22:33:43,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 124 transitions, 264 flow [2021-10-05 22:33:43,787 INFO L129 PetriNetUnfolder]: 10/122 cut-off events. [2021-10-05 22:33:43,787 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-05 22:33:43,796 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 122 events. 10/122 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2021-10-05 22:33:43,801 INFO L116 LiptonReduction]: Number of co-enabled transitions 642 [2021-10-05 22:33:48,750 INFO L131 LiptonReduction]: Checked pairs total: 2650 [2021-10-05 22:33:48,751 INFO L133 LiptonReduction]: Total number of compositions: 132 [2021-10-05 22:33:48,760 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 25 transitions, 66 flow [2021-10-05 22:33:48,780 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 114 states, 113 states have (on average 2.353982300884956) internal successors, (266), 113 states have internal predecessors, (266), 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) [2021-10-05 22:33:48,783 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 113 states have (on average 2.353982300884956) internal successors, (266), 113 states have internal predecessors, (266), 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) [2021-10-05 22:33:48,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-05 22:33:48,792 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:33:48,793 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:33:48,794 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:33:48,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:33:48,800 INFO L82 PathProgramCache]: Analyzing trace with hash 929607858, now seen corresponding path program 1 times [2021-10-05 22:33:48,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:33:48,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770683427] [2021-10-05 22:33:48,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:33:48,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:33:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:33:49,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-05 22:33:49,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:33:49,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770683427] [2021-10-05 22:33:49,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770683427] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:33:49,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:33:49,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 22:33:49,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352829239] [2021-10-05 22:33:49,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-05 22:33:49,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:33:49,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-05 22:33:49,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-05 22:33:49,223 INFO L87 Difference]: Start difference. First operand has 114 states, 113 states have (on average 2.353982300884956) internal successors, (266), 113 states have internal predecessors, (266), 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) Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2021-10-05 22:33:49,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:33:49,267 INFO L93 Difference]: Finished difference Result 187 states and 441 transitions. [2021-10-05 22:33:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-05 22:33:49,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) Word has length 18 [2021-10-05 22:33:49,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:33:49,280 INFO L225 Difference]: With dead ends: 187 [2021-10-05 22:33:49,281 INFO L226 Difference]: Without dead ends: 102 [2021-10-05 22:33:49,282 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-05 22:33:49,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-05 22:33:49,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-10-05 22:33:49,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 2.3168316831683167) internal successors, (234), 101 states have internal predecessors, (234), 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) [2021-10-05 22:33:49,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 234 transitions. [2021-10-05 22:33:49,330 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 234 transitions. Word has length 18 [2021-10-05 22:33:49,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:33:49,331 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 234 transitions. [2021-10-05 22:33:49,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2021-10-05 22:33:49,331 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 234 transitions. [2021-10-05 22:33:49,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-05 22:33:49,333 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:33:49,333 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:33:49,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-05 22:33:49,334 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:33:49,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:33:49,335 INFO L82 PathProgramCache]: Analyzing trace with hash 722984696, now seen corresponding path program 2 times [2021-10-05 22:33:49,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:33:49,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426780164] [2021-10-05 22:33:49,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:33:49,336 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:33:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:33:49,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-05 22:33:49,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:33:49,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426780164] [2021-10-05 22:33:49,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426780164] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:33:49,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:33:49,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-05 22:33:49,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766735788] [2021-10-05 22:33:49,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-05 22:33:49,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:33:49,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-05 22:33:49,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-05 22:33:49,429 INFO L87 Difference]: Start difference. First operand 102 states and 234 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-10-05 22:33:49,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:33:49,510 INFO L93 Difference]: Finished difference Result 152 states and 338 transitions. [2021-10-05 22:33:49,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-05 22:33:49,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) Word has length 18 [2021-10-05 22:33:49,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:33:49,515 INFO L225 Difference]: With dead ends: 152 [2021-10-05 22:33:49,517 INFO L226 Difference]: Without dead ends: 152 [2021-10-05 22:33:49,518 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 22.8ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-05 22:33:49,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-05 22:33:49,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 124. [2021-10-05 22:33:49,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 2.268292682926829) internal successors, (279), 123 states have internal predecessors, (279), 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) [2021-10-05 22:33:49,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 279 transitions. [2021-10-05 22:33:49,552 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 279 transitions. Word has length 18 [2021-10-05 22:33:49,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:33:49,552 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 279 transitions. [2021-10-05 22:33:49,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-10-05 22:33:49,553 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 279 transitions. [2021-10-05 22:33:49,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-05 22:33:49,555 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:33:49,556 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:33:49,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-05 22:33:49,556 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:33:49,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:33:49,558 INFO L82 PathProgramCache]: Analyzing trace with hash 61603512, now seen corresponding path program 3 times [2021-10-05 22:33:49,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:33:49,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409943018] [2021-10-05 22:33:49,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:33:49,560 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:33:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:33:49,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-05 22:33:49,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:33:49,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409943018] [2021-10-05 22:33:49,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409943018] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:33:49,659 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:33:49,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 22:33:49,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161540421] [2021-10-05 22:33:49,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-05 22:33:49,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:33:49,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-05 22:33:49,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-05 22:33:49,661 INFO L87 Difference]: Start difference. First operand 124 states and 279 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-05 22:33:49,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:33:49,686 INFO L93 Difference]: Finished difference Result 172 states and 361 transitions. [2021-10-05 22:33:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-05 22:33:49,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) Word has length 18 [2021-10-05 22:33:49,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:33:49,690 INFO L225 Difference]: With dead ends: 172 [2021-10-05 22:33:49,692 INFO L226 Difference]: Without dead ends: 172 [2021-10-05 22:33:49,692 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-05 22:33:49,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-05 22:33:49,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 134. [2021-10-05 22:33:49,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 2.2481203007518795) internal successors, (299), 133 states have internal predecessors, (299), 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) [2021-10-05 22:33:49,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 299 transitions. [2021-10-05 22:33:49,721 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 299 transitions. Word has length 18 [2021-10-05 22:33:49,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:33:49,722 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 299 transitions. [2021-10-05 22:33:49,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-05 22:33:49,723 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 299 transitions. [2021-10-05 22:33:49,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-05 22:33:49,727 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:33:49,727 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:33:49,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-05 22:33:49,728 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:33:49,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:33:49,729 INFO L82 PathProgramCache]: Analyzing trace with hash -2072324644, now seen corresponding path program 4 times [2021-10-05 22:33:49,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:33:49,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069437849] [2021-10-05 22:33:49,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:33:49,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:33:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:33:49,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-05 22:33:49,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:33:49,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069437849] [2021-10-05 22:33:49,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069437849] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:33:49,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:33:49,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 22:33:49,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128639107] [2021-10-05 22:33:49,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-05 22:33:49,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:33:49,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-05 22:33:49,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-05 22:33:49,777 INFO L87 Difference]: Start difference. First operand 134 states and 299 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-05 22:33:49,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:33:49,800 INFO L93 Difference]: Finished difference Result 186 states and 388 transitions. [2021-10-05 22:33:49,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-05 22:33:49,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) Word has length 18 [2021-10-05 22:33:49,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:33:49,804 INFO L225 Difference]: With dead ends: 186 [2021-10-05 22:33:49,804 INFO L226 Difference]: Without dead ends: 186 [2021-10-05 22:33:49,804 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-05 22:33:49,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-10-05 22:33:49,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 134. [2021-10-05 22:33:49,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 2.2481203007518795) internal successors, (299), 133 states have internal predecessors, (299), 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) [2021-10-05 22:33:49,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 299 transitions. [2021-10-05 22:33:49,826 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 299 transitions. Word has length 18 [2021-10-05 22:33:49,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:33:49,827 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 299 transitions. [2021-10-05 22:33:49,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-05 22:33:49,827 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 299 transitions. [2021-10-05 22:33:49,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-05 22:33:49,832 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:33:49,832 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:33:49,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-05 22:33:49,833 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:33:49,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:33:49,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1122870840, now seen corresponding path program 5 times [2021-10-05 22:33:49,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:33:49,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740413819] [2021-10-05 22:33:49,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:33:49,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:33:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:33:49,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-05 22:33:49,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:33:49,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740413819] [2021-10-05 22:33:49,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740413819] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:33:49,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:33:49,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-05 22:33:49,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116366220] [2021-10-05 22:33:49,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-05 22:33:49,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:33:49,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-05 22:33:49,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-05 22:33:49,992 INFO L87 Difference]: Start difference. First operand 134 states and 299 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-05 22:33:50,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:33:50,024 INFO L93 Difference]: Finished difference Result 133 states and 298 transitions. [2021-10-05 22:33:50,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-05 22:33:50,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) Word has length 18 [2021-10-05 22:33:50,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:33:50,029 INFO L225 Difference]: With dead ends: 133 [2021-10-05 22:33:50,029 INFO L226 Difference]: Without dead ends: 0 [2021-10-05 22:33:50,029 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-05 22:33:50,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-05 22:33:50,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-05 22:33:50,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-05 22:33:50,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-05 22:33:50,031 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-10-05 22:33:50,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:33:50,031 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-05 22:33:50,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-05 22:33:50,032 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-05 22:33:50,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-05 22:33:50,035 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-05 22:33:50,036 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-05 22:33:50,036 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-05 22:33:50,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-05 22:33:50,041 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-05 22:33:50,041 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-05 22:33:50,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:33:50 BasicIcfg [2021-10-05 22:33:50,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-05 22:33:50,045 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-05 22:33:50,045 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-05 22:33:50,045 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-05 22:33:50,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:33:43" (3/4) ... [2021-10-05 22:33:50,049 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-05 22:33:50,056 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-05 22:33:50,056 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-05 22:33:50,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-05 22:33:50,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-05 22:33:50,066 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-05 22:33:50,066 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-05 22:33:50,139 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-05 22:33:50,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-05 22:33:50,144 INFO L168 Benchmark]: Toolchain (without parser) took 7979.77 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 32.6 MB in the beginning and 40.1 MB in the end (delta: -7.5 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. [2021-10-05 22:33:50,145 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 41.9 MB. Free memory was 19.1 MB in the beginning and 19.1 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 22:33:50,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.34 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 35.4 MB in the end (delta: -3.0 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-05 22:33:50,146 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.17 ms. Allocated memory is still 56.6 MB. Free memory was 35.3 MB in the beginning and 33.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 22:33:50,147 INFO L168 Benchmark]: Boogie Preprocessor took 58.48 ms. Allocated memory is still 56.6 MB. Free memory was 33.6 MB in the beginning and 32.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-05 22:33:50,147 INFO L168 Benchmark]: RCFGBuilder took 666.23 ms. Allocated memory is still 56.6 MB. Free memory was 32.3 MB in the beginning and 31.6 MB in the end (delta: 678.6 kB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-05 22:33:50,148 INFO L168 Benchmark]: TraceAbstraction took 6625.87 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 31.0 MB in the beginning and 43.0 MB in the end (delta: -12.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2021-10-05 22:33:50,148 INFO L168 Benchmark]: Witness Printer took 97.13 ms. Allocated memory is still 83.9 MB. Free memory was 43.0 MB in the beginning and 40.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-05 22:33:50,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 41.9 MB. Free memory was 19.1 MB in the beginning and 19.1 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 438.34 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 35.4 MB in the end (delta: -3.0 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.17 ms. Allocated memory is still 56.6 MB. Free memory was 35.3 MB in the beginning and 33.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.48 ms. Allocated memory is still 56.6 MB. Free memory was 33.6 MB in the beginning and 32.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 666.23 ms. Allocated memory is still 56.6 MB. Free memory was 32.3 MB in the beginning and 31.6 MB in the end (delta: 678.6 kB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6625.87 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 31.0 MB in the beginning and 43.0 MB in the end (delta: -12.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * Witness Printer took 97.13 ms. Allocated memory is still 83.9 MB. Free memory was 43.0 MB in the beginning and 40.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5076.7ms, 121 PlacesBefore, 30 PlacesAfterwards, 124 TransitionsBefore, 25 TransitionsAfterwards, 642 CoEnabledTransitionPairs, 7 FixpointIterations, 77 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 7 ConcurrentYvCompositions, 8 ChoiceCompositions, 132 TotalNumberOfCompositions, 2650 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1838, positive: 1668, positive conditional: 0, positive unconditional: 1668, negative: 170, negative conditional: 0, negative unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 599, positive: 561, positive conditional: 0, positive unconditional: 561, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 599, positive: 556, positive conditional: 0, positive unconditional: 556, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 114, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 106, negative conditional: 0, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1838, positive: 1107, positive conditional: 0, positive unconditional: 1107, negative: 132, negative conditional: 0, negative unconditional: 132, unknown: 599, unknown conditional: 0, unknown unconditional: 599] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 123, Positive conditional cache size: 0, Positive unconditional cache size: 123, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 5 procedures, 141 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6425.8ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 22.7ms, AutomataDifference: 263.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5150.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 150 SDtfs, 116 SDslu, 151 SDs, 0 SdLazy, 89 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 59.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=3, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 113.9ms AutomataMinimizationTime, 5 MinimizatonAttempts, 118 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.2ms SsaConstructionTime, 249.5ms SatisfiabilityAnalysisTime, 384.8ms InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 389 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2021-10-05 22:33:50,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...