./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/test/easy6.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/test/easy6.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 ac73ca2be8965941731fbb6997aed9b9d8887745 -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 22:15:15,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-05 22:15:15,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-05 22:15:15,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-05 22:15:15,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-05 22:15:15,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-05 22:15:15,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-05 22:15:15,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-05 22:15:15,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-05 22:15:15,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-05 22:15:15,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-05 22:15:15,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-05 22:15:15,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-05 22:15:15,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-05 22:15:15,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-05 22:15:15,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-05 22:15:15,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-05 22:15:15,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-05 22:15:15,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-05 22:15:15,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-05 22:15:15,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-05 22:15:15,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-05 22:15:15,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-05 22:15:15,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-05 22:15:15,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-05 22:15:15,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-05 22:15:15,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-05 22:15:15,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-05 22:15:15,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-05 22:15:15,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-05 22:15:15,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-05 22:15:15,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-05 22:15:15,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-05 22:15:15,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-05 22:15:15,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-05 22:15:15,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-05 22:15:15,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-05 22:15:15,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-05 22:15:15,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-05 22:15:15,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-05 22:15:15,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-05 22:15:15,761 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 22:15:15,821 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-05 22:15:15,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-05 22:15:15,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-05 22:15:15,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-05 22:15:15,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-05 22:15:15,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-05 22:15:15,827 INFO L138 SettingsManager]: * Use SBE=true [2021-10-05 22:15:15,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-05 22:15:15,829 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-05 22:15:15,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-05 22:15:15,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-05 22:15:15,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-05 22:15:15,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-05 22:15:15,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-05 22:15:15,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-05 22:15:15,832 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-05 22:15:15,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-05 22:15:15,832 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-05 22:15:15,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-05 22:15:15,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-05 22:15:15,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-05 22:15:15,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-05 22:15:15,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 22:15:15,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-05 22:15:15,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-05 22:15:15,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-05 22:15:15,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-05 22:15:15,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-05 22:15:15,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-05 22:15:15,835 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-05 22:15:15,836 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac73ca2be8965941731fbb6997aed9b9d8887745 [2021-10-05 22:15:16,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-05 22:15:16,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-05 22:15:16,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-05 22:15:16,338 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-05 22:15:16,339 INFO L275 PluginConnector]: CDTParser initialized [2021-10-05 22:15:16,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test/easy6.wvr.c [2021-10-05 22:15:16,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0a32ef93/b326c14f54b34bd686f5bbc05e3c8f82/FLAG68b9b6518 [2021-10-05 22:15:17,027 INFO L306 CDTParser]: Found 1 translation units. [2021-10-05 22:15:17,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/test/easy6.wvr.c [2021-10-05 22:15:17,039 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0a32ef93/b326c14f54b34bd686f5bbc05e3c8f82/FLAG68b9b6518 [2021-10-05 22:15:17,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0a32ef93/b326c14f54b34bd686f5bbc05e3c8f82 [2021-10-05 22:15:17,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-05 22:15:17,395 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-05 22:15:17,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-05 22:15:17,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-05 22:15:17,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-05 22:15:17,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:15:17" (1/1) ... [2021-10-05 22:15:17,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75bffec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:15:17, skipping insertion in model container [2021-10-05 22:15:17,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:15:17" (1/1) ... [2021-10-05 22:15:17,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-05 22:15:17,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-05 22:15:17,628 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/test/easy6.wvr.c[1988,2001] [2021-10-05 22:15:17,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 22:15:17,646 INFO L203 MainTranslator]: Completed pre-run [2021-10-05 22:15:17,667 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/test/easy6.wvr.c[1988,2001] [2021-10-05 22:15:17,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 22:15:17,684 INFO L208 MainTranslator]: Completed translation [2021-10-05 22:15:17,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:15:17 WrapperNode [2021-10-05 22:15:17,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-05 22:15:17,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-05 22:15:17,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-05 22:15:17,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-05 22:15:17,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:15:17" (1/1) ... [2021-10-05 22:15:17,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:15:17" (1/1) ... [2021-10-05 22:15:17,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-05 22:15:17,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-05 22:15:17,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-05 22:15:17,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-05 22:15:17,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:15:17" (1/1) ... [2021-10-05 22:15:17,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:15:17" (1/1) ... [2021-10-05 22:15:17,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:15:17" (1/1) ... [2021-10-05 22:15:17,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:15:17" (1/1) ... [2021-10-05 22:15:17,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:15:17" (1/1) ... [2021-10-05 22:15:17,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:15:17" (1/1) ... [2021-10-05 22:15:17,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:15:17" (1/1) ... [2021-10-05 22:15:17,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-05 22:15:17,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-05 22:15:17,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-05 22:15:17,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-05 22:15:17,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:15:17" (1/1) ... [2021-10-05 22:15:17,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 22:15:17,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:15:17,802 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 22:15:17,826 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 22:15:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-05 22:15:17,876 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-05 22:15:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-05 22:15:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-05 22:15:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-05 22:15:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-05 22:15:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-05 22:15:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-05 22:15:17,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-05 22:15:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-05 22:15:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-05 22:15:17,881 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 22:15:18,272 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-05 22:15:18,273 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-05 22:15:18,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:15:18 BoogieIcfgContainer [2021-10-05 22:15:18,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-05 22:15:18,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-05 22:15:18,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-05 22:15:18,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-05 22:15:18,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:15:17" (1/3) ... [2021-10-05 22:15:18,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25696099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:15:18, skipping insertion in model container [2021-10-05 22:15:18,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:15:17" (2/3) ... [2021-10-05 22:15:18,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25696099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:15:18, skipping insertion in model container [2021-10-05 22:15:18,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:15:18" (3/3) ... [2021-10-05 22:15:18,286 INFO L111 eAbstractionObserver]: Analyzing ICFG easy6.wvr.c [2021-10-05 22:15:18,293 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-05 22:15:18,293 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-05 22:15:18,293 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-05 22:15:18,294 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-05 22:15:18,327 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,328 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,328 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,328 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,329 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,329 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,329 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,330 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,330 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,330 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,330 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,331 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,331 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,331 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,332 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,332 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,332 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,332 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,333 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,333 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,333 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,334 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,334 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,334 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,336 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,336 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,337 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,337 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,337 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,337 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,338 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,338 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,338 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,339 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,339 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,340 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,340 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,340 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,341 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,341 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,341 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,351 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,351 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,352 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,353 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,353 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,353 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,353 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,361 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,361 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,361 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,362 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,370 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,370 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,370 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,371 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:15:18,404 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-05 22:15:18,487 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-05 22:15:18,500 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 22:15:18,502 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-05 22:15:18,543 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-05 22:15:18,574 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 92 transitions, 200 flow [2021-10-05 22:15:18,578 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 92 transitions, 200 flow [2021-10-05 22:15:18,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 92 transitions, 200 flow [2021-10-05 22:15:18,694 INFO L129 PetriNetUnfolder]: 5/90 cut-off events. [2021-10-05 22:15:18,695 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-05 22:15:18,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 90 events. 5/90 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2021-10-05 22:15:18,704 INFO L116 LiptonReduction]: Number of co-enabled transitions 1400 [2021-10-05 22:15:22,117 INFO L131 LiptonReduction]: Checked pairs total: 6121 [2021-10-05 22:15:22,117 INFO L133 LiptonReduction]: Total number of compositions: 90 [2021-10-05 22:15:22,129 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 30 transitions, 76 flow [2021-10-05 22:15:22,155 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 200 states, 199 states have (on average 2.391959798994975) internal successors, (476), 199 states have internal predecessors, (476), 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 22:15:22,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 199 states have (on average 2.391959798994975) internal successors, (476), 199 states have internal predecessors, (476), 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 22:15:22,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-05 22:15:22,169 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:15:22,169 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:15:22,170 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:15:22,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:15:22,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1078898096, now seen corresponding path program 1 times [2021-10-05 22:15:22,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:15:22,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315453626] [2021-10-05 22:15:22,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:15:22,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:15:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:15:22,370 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 22:15:22,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:15:22,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315453626] [2021-10-05 22:15:22,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315453626] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:15:22,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:15:22,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-05 22:15:22,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333300785] [2021-10-05 22:15:22,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-05 22:15:22,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:15:22,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-05 22:15:22,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-05 22:15:22,405 INFO L87 Difference]: Start difference. First operand has 200 states, 199 states have (on average 2.391959798994975) internal successors, (476), 199 states have internal predecessors, (476), 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 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 22:15:22,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:15:22,433 INFO L93 Difference]: Finished difference Result 200 states and 436 transitions. [2021-10-05 22:15:22,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-05 22:15:22,435 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-10-05 22:15:22,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:15:22,451 INFO L225 Difference]: With dead ends: 200 [2021-10-05 22:15:22,451 INFO L226 Difference]: Without dead ends: 200 [2021-10-05 22:15:22,453 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-05 22:15:22,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-10-05 22:15:22,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-10-05 22:15:22,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 2.190954773869347) internal successors, (436), 199 states have internal predecessors, (436), 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 22:15:22,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 436 transitions. [2021-10-05 22:15:22,551 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 436 transitions. Word has length 11 [2021-10-05 22:15:22,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:15:22,552 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 436 transitions. [2021-10-05 22:15:22,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 22:15:22,555 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 436 transitions. [2021-10-05 22:15:22,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-05 22:15:22,563 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:15:22,563 INFO L512 BasicCegarLoop]: 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] [2021-10-05 22:15:22,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-05 22:15:22,564 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:15:22,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:15:22,565 INFO L82 PathProgramCache]: Analyzing trace with hash -2017297194, now seen corresponding path program 1 times [2021-10-05 22:15:22,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:15:22,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323098898] [2021-10-05 22:15:22,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:15:22,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:15:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:15:22,878 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 22:15:22,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:15:22,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323098898] [2021-10-05 22:15:22,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323098898] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:15:22,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:15:22,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-05 22:15:22,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374887585] [2021-10-05 22:15:22,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-05 22:15:22,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:15:22,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-05 22:15:22,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-05 22:15:22,884 INFO L87 Difference]: Start difference. First operand 200 states and 436 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 22:15:23,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:15:23,033 INFO L93 Difference]: Finished difference Result 364 states and 789 transitions. [2021-10-05 22:15:23,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-05 22:15:23,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 25 [2021-10-05 22:15:23,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:15:23,039 INFO L225 Difference]: With dead ends: 364 [2021-10-05 22:15:23,039 INFO L226 Difference]: Without dead ends: 350 [2021-10-05 22:15:23,040 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 89.9ms TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2021-10-05 22:15:23,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-10-05 22:15:23,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 236. [2021-10-05 22:15:23,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 2.1872340425531913) internal successors, (514), 235 states have internal predecessors, (514), 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 22:15:23,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 514 transitions. [2021-10-05 22:15:23,059 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 514 transitions. Word has length 25 [2021-10-05 22:15:23,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:15:23,060 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 514 transitions. [2021-10-05 22:15:23,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 22:15:23,061 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 514 transitions. [2021-10-05 22:15:23,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-05 22:15:23,063 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:15:23,063 INFO L512 BasicCegarLoop]: 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] [2021-10-05 22:15:23,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-05 22:15:23,064 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:15:23,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:15:23,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1194029782, now seen corresponding path program 2 times [2021-10-05 22:15:23,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:15:23,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725597868] [2021-10-05 22:15:23,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:15:23,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:15:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:15:23,275 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 22:15:23,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:15:23,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725597868] [2021-10-05 22:15:23,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725597868] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:15:23,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:15:23,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-05 22:15:23,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784530011] [2021-10-05 22:15:23,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-05 22:15:23,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:15:23,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-05 22:15:23,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-05 22:15:23,285 INFO L87 Difference]: Start difference. First operand 236 states and 514 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 22:15:23,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:15:23,354 INFO L93 Difference]: Finished difference Result 287 states and 593 transitions. [2021-10-05 22:15:23,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-05 22:15:23,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 25 [2021-10-05 22:15:23,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:15:23,357 INFO L225 Difference]: With dead ends: 287 [2021-10-05 22:15:23,357 INFO L226 Difference]: Without dead ends: 204 [2021-10-05 22:15:23,357 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 64.3ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-05 22:15:23,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-10-05 22:15:23,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 170. [2021-10-05 22:15:23,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 169 states have (on average 2.136094674556213) internal successors, (361), 169 states have internal predecessors, (361), 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 22:15:23,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 361 transitions. [2021-10-05 22:15:23,366 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 361 transitions. Word has length 25 [2021-10-05 22:15:23,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:15:23,367 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 361 transitions. [2021-10-05 22:15:23,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 22:15:23,367 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 361 transitions. [2021-10-05 22:15:23,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-05 22:15:23,369 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:15:23,369 INFO L512 BasicCegarLoop]: 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] [2021-10-05 22:15:23,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-05 22:15:23,370 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:15:23,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:15:23,370 INFO L82 PathProgramCache]: Analyzing trace with hash -682414364, now seen corresponding path program 3 times [2021-10-05 22:15:23,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:15:23,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895323480] [2021-10-05 22:15:23,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:15:23,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:15:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:15:23,419 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 22:15:23,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:15:23,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895323480] [2021-10-05 22:15:23,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895323480] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:15:23,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:15:23,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 22:15:23,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143607833] [2021-10-05 22:15:23,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-05 22:15:23,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:15:23,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-05 22:15:23,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-05 22:15:23,423 INFO L87 Difference]: Start difference. First operand 170 states and 361 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 22:15:23,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:15:23,431 INFO L93 Difference]: Finished difference Result 164 states and 346 transitions. [2021-10-05 22:15:23,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-05 22:15:23,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2021-10-05 22:15:23,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:15:23,433 INFO L225 Difference]: With dead ends: 164 [2021-10-05 22:15:23,434 INFO L226 Difference]: Without dead ends: 164 [2021-10-05 22:15:23,434 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-05 22:15:23,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-10-05 22:15:23,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2021-10-05 22:15:23,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 163 states have (on average 2.1226993865030677) internal successors, (346), 163 states have internal predecessors, (346), 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 22:15:23,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 346 transitions. [2021-10-05 22:15:23,441 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 346 transitions. Word has length 25 [2021-10-05 22:15:23,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:15:23,441 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 346 transitions. [2021-10-05 22:15:23,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 22:15:23,442 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 346 transitions. [2021-10-05 22:15:23,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-05 22:15:23,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:15:23,443 INFO L512 BasicCegarLoop]: 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] [2021-10-05 22:15:23,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-05 22:15:23,443 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:15:23,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:15:23,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1983711056, now seen corresponding path program 4 times [2021-10-05 22:15:23,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:15:23,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465488918] [2021-10-05 22:15:23,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:15:23,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:15:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:15:23,576 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 22:15:23,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:15:23,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465488918] [2021-10-05 22:15:23,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465488918] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:15:23,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:15:23,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-05 22:15:23,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688914181] [2021-10-05 22:15:23,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-05 22:15:23,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:15:23,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-05 22:15:23,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-05 22:15:23,580 INFO L87 Difference]: Start difference. First operand 164 states and 346 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 22:15:23,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:15:23,711 INFO L93 Difference]: Finished difference Result 312 states and 655 transitions. [2021-10-05 22:15:23,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-05 22:15:23,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 25 [2021-10-05 22:15:23,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:15:23,714 INFO L225 Difference]: With dead ends: 312 [2021-10-05 22:15:23,714 INFO L226 Difference]: Without dead ends: 312 [2021-10-05 22:15:23,715 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 100.9ms TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-10-05 22:15:23,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-10-05 22:15:23,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 204. [2021-10-05 22:15:23,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 203 states have (on average 2.147783251231527) internal successors, (436), 203 states have internal predecessors, (436), 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 22:15:23,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 436 transitions. [2021-10-05 22:15:23,724 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 436 transitions. Word has length 25 [2021-10-05 22:15:23,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:15:23,725 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 436 transitions. [2021-10-05 22:15:23,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 22:15:23,725 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 436 transitions. [2021-10-05 22:15:23,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-05 22:15:23,727 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:15:23,727 INFO L512 BasicCegarLoop]: 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] [2021-10-05 22:15:23,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-05 22:15:23,727 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:15:23,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:15:23,729 INFO L82 PathProgramCache]: Analyzing trace with hash 798648552, now seen corresponding path program 5 times [2021-10-05 22:15:23,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:15:23,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885253365] [2021-10-05 22:15:23,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:15:23,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:15:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:15:23,871 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 22:15:23,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:15:23,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885253365] [2021-10-05 22:15:23,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885253365] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:15:23,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:15:23,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-05 22:15:23,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875115557] [2021-10-05 22:15:23,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-05 22:15:23,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:15:23,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-05 22:15:23,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-05 22:15:23,874 INFO L87 Difference]: Start difference. First operand 204 states and 436 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 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 22:15:24,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:15:24,011 INFO L93 Difference]: Finished difference Result 316 states and 658 transitions. [2021-10-05 22:15:24,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-05 22:15:24,012 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 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 25 [2021-10-05 22:15:24,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:15:24,014 INFO L225 Difference]: With dead ends: 316 [2021-10-05 22:15:24,014 INFO L226 Difference]: Without dead ends: 302 [2021-10-05 22:15:24,015 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 113.3ms TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-10-05 22:15:24,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-10-05 22:15:24,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 194. [2021-10-05 22:15:24,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 2.1295336787564767) internal successors, (411), 193 states have internal predecessors, (411), 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 22:15:24,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 411 transitions. [2021-10-05 22:15:24,024 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 411 transitions. Word has length 25 [2021-10-05 22:15:24,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:15:24,024 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 411 transitions. [2021-10-05 22:15:24,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 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 22:15:24,025 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 411 transitions. [2021-10-05 22:15:24,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-05 22:15:24,026 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:15:24,026 INFO L512 BasicCegarLoop]: 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] [2021-10-05 22:15:24,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-05 22:15:24,027 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:15:24,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:15:24,028 INFO L82 PathProgramCache]: Analyzing trace with hash -561645392, now seen corresponding path program 6 times [2021-10-05 22:15:24,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:15:24,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122975911] [2021-10-05 22:15:24,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:15:24,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:15:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:15:24,127 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 22:15:24,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:15:24,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122975911] [2021-10-05 22:15:24,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122975911] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:15:24,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:15:24,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-05 22:15:24,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844318736] [2021-10-05 22:15:24,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-05 22:15:24,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:15:24,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-05 22:15:24,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-05 22:15:24,131 INFO L87 Difference]: Start difference. First operand 194 states and 411 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 22:15:24,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:15:24,204 INFO L93 Difference]: Finished difference Result 227 states and 462 transitions. [2021-10-05 22:15:24,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-05 22:15:24,205 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 25 [2021-10-05 22:15:24,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:15:24,206 INFO L225 Difference]: With dead ends: 227 [2021-10-05 22:15:24,206 INFO L226 Difference]: Without dead ends: 128 [2021-10-05 22:15:24,207 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 54.0ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-05 22:15:24,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-05 22:15:24,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 114. [2021-10-05 22:15:24,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 2.0353982300884956) internal successors, (230), 113 states have internal predecessors, (230), 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 22:15:24,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 230 transitions. [2021-10-05 22:15:24,212 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 230 transitions. Word has length 25 [2021-10-05 22:15:24,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:15:24,213 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 230 transitions. [2021-10-05 22:15:24,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 22:15:24,214 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 230 transitions. [2021-10-05 22:15:24,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-05 22:15:24,215 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:15:24,215 INFO L512 BasicCegarLoop]: 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] [2021-10-05 22:15:24,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-05 22:15:24,216 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:15:24,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:15:24,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1425239598, now seen corresponding path program 7 times [2021-10-05 22:15:24,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:15:24,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569069277] [2021-10-05 22:15:24,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:15:24,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:15:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:15:24,352 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 22:15:24,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:15:24,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569069277] [2021-10-05 22:15:24,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569069277] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:15:24,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:15:24,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-05 22:15:24,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531676157] [2021-10-05 22:15:24,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-05 22:15:24,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:15:24,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-05 22:15:24,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-05 22:15:24,356 INFO L87 Difference]: Start difference. First operand 114 states and 230 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 22:15:24,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:15:24,459 INFO L93 Difference]: Finished difference Result 154 states and 312 transitions. [2021-10-05 22:15:24,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-05 22:15:24,460 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 25 [2021-10-05 22:15:24,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:15:24,461 INFO L225 Difference]: With dead ends: 154 [2021-10-05 22:15:24,461 INFO L226 Difference]: Without dead ends: 110 [2021-10-05 22:15:24,462 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 97.0ms TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-10-05 22:15:24,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-10-05 22:15:24,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2021-10-05 22:15:24,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 2.018348623853211) internal successors, (220), 109 states have internal predecessors, (220), 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 22:15:24,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 220 transitions. [2021-10-05 22:15:24,467 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 220 transitions. Word has length 25 [2021-10-05 22:15:24,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:15:24,467 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 220 transitions. [2021-10-05 22:15:24,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 22:15:24,468 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 220 transitions. [2021-10-05 22:15:24,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-05 22:15:24,468 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:15:24,469 INFO L512 BasicCegarLoop]: 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] [2021-10-05 22:15:24,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-05 22:15:24,469 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:15:24,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:15:24,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1537351332, now seen corresponding path program 8 times [2021-10-05 22:15:24,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:15:24,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355264849] [2021-10-05 22:15:24,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:15:24,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:15:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:15:24,546 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 22:15:24,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:15:24,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355264849] [2021-10-05 22:15:24,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355264849] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:15:24,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:15:24,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-05 22:15:24,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555275508] [2021-10-05 22:15:24,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-05 22:15:24,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:15:24,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-05 22:15:24,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-05 22:15:24,558 INFO L87 Difference]: Start difference. First operand 110 states and 220 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 22:15:24,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:15:24,668 INFO L93 Difference]: Finished difference Result 78 states and 158 transitions. [2021-10-05 22:15:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-05 22:15:24,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 25 [2021-10-05 22:15:24,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:15:24,670 INFO L225 Difference]: With dead ends: 78 [2021-10-05 22:15:24,671 INFO L226 Difference]: Without dead ends: 0 [2021-10-05 22:15:24,671 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 91.1ms TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-10-05 22:15:24,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-05 22:15:24,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-05 22:15:24,673 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 22:15:24,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-05 22:15:24,673 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-10-05 22:15:24,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:15:24,673 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-05 22:15:24,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 22:15:24,674 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-05 22:15:24,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-05 22:15:24,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-05 22:15:24,678 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-05 22:15:24,678 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-05 22:15:24,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-05 22:15:24,683 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-05 22:15:24,683 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-05 22:15:24,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:15:24 BasicIcfg [2021-10-05 22:15:24,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-05 22:15:24,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-05 22:15:24,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-05 22:15:24,687 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-05 22:15:24,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:15:18" (3/4) ... [2021-10-05 22:15:24,691 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-05 22:15:24,700 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-05 22:15:24,700 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-05 22:15:24,705 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-05 22:15:24,706 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-05 22:15:24,706 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-05 22:15:24,706 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-05 22:15:24,746 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-05 22:15:24,747 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-05 22:15:24,749 INFO L168 Benchmark]: Toolchain (without parser) took 7358.62 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 38.9 MB in the beginning and 50.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-10-05 22:15:24,749 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 44.0 MB. Free memory is still 29.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 22:15:24,750 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.24 ms. Allocated memory is still 62.9 MB. Free memory was 38.6 MB in the beginning and 43.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-05 22:15:24,751 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.22 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 42.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-05 22:15:24,751 INFO L168 Benchmark]: Boogie Preprocessor took 27.21 ms. Allocated memory is still 62.9 MB. Free memory was 42.0 MB in the beginning and 40.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-05 22:15:24,752 INFO L168 Benchmark]: RCFGBuilder took 518.79 ms. Allocated memory is still 62.9 MB. Free memory was 40.8 MB in the beginning and 29.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-05 22:15:24,752 INFO L168 Benchmark]: TraceAbstraction took 6408.19 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 29.1 MB in the beginning and 53.2 MB in the end (delta: -24.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 22:15:24,753 INFO L168 Benchmark]: Witness Printer took 60.31 ms. Allocated memory is still 79.7 MB. Free memory was 53.2 MB in the beginning and 50.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-05 22:15:24,756 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 44.0 MB. Free memory is still 29.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.24 ms. Allocated memory is still 62.9 MB. Free memory was 38.6 MB in the beginning and 43.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.22 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 42.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.21 ms. Allocated memory is still 62.9 MB. Free memory was 42.0 MB in the beginning and 40.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 518.79 ms. Allocated memory is still 62.9 MB. Free memory was 40.8 MB in the beginning and 29.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6408.19 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 29.1 MB in the beginning and 53.2 MB in the end (delta: -24.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 60.31 ms. Allocated memory is still 79.7 MB. Free memory was 53.2 MB in the beginning and 50.4 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: 3539.1ms, 94 PlacesBefore, 35 PlacesAfterwards, 92 TransitionsBefore, 30 TransitionsAfterwards, 1400 CoEnabledTransitionPairs, 11 FixpointIterations, 36 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 3 ChoiceCompositions, 90 TotalNumberOfCompositions, 6121 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3527, positive: 3206, positive conditional: 0, positive unconditional: 3206, negative: 321, negative conditional: 0, negative unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1205, positive: 1149, positive conditional: 0, positive unconditional: 1149, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1205, positive: 1108, positive conditional: 0, positive unconditional: 1108, negative: 97, negative conditional: 0, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 97, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 132, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3527, positive: 2057, positive conditional: 0, positive unconditional: 2057, negative: 265, negative conditional: 0, negative unconditional: 265, unknown: 1205, unknown conditional: 0, unknown unconditional: 1205] , Statistics on independence cache: Total cache size (in pairs): 208, Positive cache size: 186, Positive conditional cache size: 0, Positive unconditional cache size: 186, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - 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: 76]: 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, 128 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6197.8ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 30.8ms, AutomataDifference: 901.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3653.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 307 SDtfs, 536 SDslu, 802 SDs, 0 SdLazy, 340 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 256.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 612.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=2, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 139.8ms AutomataMinimizationTime, 9 MinimizatonAttempts, 378 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.4ms SsaConstructionTime, 349.2ms SatisfiabilityAnalysisTime, 830.9ms InterpolantComputationTime, 211 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 202 ConstructedInterpolants, 0 QuantifiedInterpolants, 949 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 22:15:24,813 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...