./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe034_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 997cd7c3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe034_pso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 a047411ef4471f24e7719411658e09b1a4216c0e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-997cd7c-m [2021-09-22 14:52:56,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-09-22 14:52:56,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-09-22 14:52:56,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-09-22 14:52:56,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-09-22 14:52:56,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-09-22 14:52:56,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-09-22 14:52:56,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-09-22 14:52:56,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-09-22 14:52:56,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-09-22 14:52:56,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-09-22 14:52:56,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-09-22 14:52:56,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-09-22 14:52:56,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-09-22 14:52:56,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-09-22 14:52:56,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-09-22 14:52:56,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-09-22 14:52:56,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-09-22 14:52:56,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-09-22 14:52:56,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-09-22 14:52:56,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-09-22 14:52:56,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-09-22 14:52:56,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-09-22 14:52:56,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-09-22 14:52:56,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-09-22 14:52:56,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-09-22 14:52:56,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-09-22 14:52:56,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-09-22 14:52:56,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-09-22 14:52:56,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-09-22 14:52:56,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-09-22 14:52:56,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-09-22 14:52:56,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-09-22 14:52:56,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-09-22 14:52:56,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-09-22 14:52:56,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-09-22 14:52:56,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-09-22 14:52:56,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-09-22 14:52:56,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-09-22 14:52:56,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-09-22 14:52:56,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-09-22 14:52:56,780 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-09-22 14:52:56,803 INFO L113 SettingsManager]: Loading preferences was successful [2021-09-22 14:52:56,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-09-22 14:52:56,804 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-09-22 14:52:56,804 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-09-22 14:52:56,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-09-22 14:52:56,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-09-22 14:52:56,805 INFO L138 SettingsManager]: * Use SBE=true [2021-09-22 14:52:56,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-09-22 14:52:56,806 INFO L138 SettingsManager]: * sizeof long=4 [2021-09-22 14:52:56,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-09-22 14:52:56,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-09-22 14:52:56,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-09-22 14:52:56,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-09-22 14:52:56,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-09-22 14:52:56,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-09-22 14:52:56,807 INFO L138 SettingsManager]: * sizeof long double=12 [2021-09-22 14:52:56,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-09-22 14:52:56,808 INFO L138 SettingsManager]: * Use constant arrays=true [2021-09-22 14:52:56,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-09-22 14:52:56,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-09-22 14:52:56,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-09-22 14:52:56,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-09-22 14:52:56,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:52:56,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-09-22 14:52:56,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-09-22 14:52:56,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-09-22 14:52:56,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-09-22 14:52:56,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-09-22 14:52:56,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-09-22 14:52:56,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-09-22 14:52:56,810 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a047411ef4471f24e7719411658e09b1a4216c0e [2021-09-22 14:52:57,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-09-22 14:52:57,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-09-22 14:52:57,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-09-22 14:52:57,131 INFO L271 PluginConnector]: Initializing CDTParser... [2021-09-22 14:52:57,132 INFO L275 PluginConnector]: CDTParser initialized [2021-09-22 14:52:57,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe034_pso.oepc.i [2021-09-22 14:52:57,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d26c9ef5/96ac92836d11445abfa2530987e6009f/FLAG52a498bd1 [2021-09-22 14:52:57,715 INFO L306 CDTParser]: Found 1 translation units. [2021-09-22 14:52:57,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe034_pso.oepc.i [2021-09-22 14:52:57,741 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d26c9ef5/96ac92836d11445abfa2530987e6009f/FLAG52a498bd1 [2021-09-22 14:52:58,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d26c9ef5/96ac92836d11445abfa2530987e6009f [2021-09-22 14:52:58,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-09-22 14:52:58,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-09-22 14:52:58,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-09-22 14:52:58,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-09-22 14:52:58,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-09-22 14:52:58,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:52:58" (1/1) ... [2021-09-22 14:52:58,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f92fa73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:52:58, skipping insertion in model container [2021-09-22 14:52:58,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:52:58" (1/1) ... [2021-09-22 14:52:58,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-09-22 14:52:58,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-09-22 14:52:58,400 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe034_pso.oepc.i[950,963] [2021-09-22 14:52:58,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:52:58,542 INFO L203 MainTranslator]: Completed pre-run [2021-09-22 14:52:58,553 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe034_pso.oepc.i[950,963] [2021-09-22 14:52:58,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:52:58,663 INFO L208 MainTranslator]: Completed translation [2021-09-22 14:52:58,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:52:58 WrapperNode [2021-09-22 14:52:58,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-09-22 14:52:58,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-09-22 14:52:58,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-09-22 14:52:58,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-09-22 14:52:58,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:52:58" (1/1) ... [2021-09-22 14:52:58,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:52:58" (1/1) ... [2021-09-22 14:52:58,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-09-22 14:52:58,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-09-22 14:52:58,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-09-22 14:52:58,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-09-22 14:52:58,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:52:58" (1/1) ... [2021-09-22 14:52:58,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:52:58" (1/1) ... [2021-09-22 14:52:58,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:52:58" (1/1) ... [2021-09-22 14:52:58,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:52:58" (1/1) ... [2021-09-22 14:52:58,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:52:58" (1/1) ... [2021-09-22 14:52:58,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:52:58" (1/1) ... [2021-09-22 14:52:58,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:52:58" (1/1) ... [2021-09-22 14:52:58,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-09-22 14:52:58,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-09-22 14:52:58,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-09-22 14:52:58,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-09-22 14:52:58,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:52:58" (1/1) ... [2021-09-22 14:52:58,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:52:58,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-09-22 14:52:58,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-09-22 14:52:58,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-09-22 14:52:58,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-09-22 14:52:58,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-09-22 14:52:58,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-09-22 14:52:58,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-09-22 14:52:58,871 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-09-22 14:52:58,871 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-09-22 14:52:58,871 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-09-22 14:52:58,871 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-09-22 14:52:58,871 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-09-22 14:52:58,872 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-09-22 14:52:58,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-09-22 14:52:58,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-09-22 14:52:58,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-09-22 14:52:58,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-09-22 14:52:58,873 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-09-22 14:53:00,146 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-09-22 14:53:00,147 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-09-22 14:53:00,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:53:00 BoogieIcfgContainer [2021-09-22 14:53:00,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-09-22 14:53:00,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-09-22 14:53:00,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-09-22 14:53:00,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-09-22 14:53:00,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 02:52:58" (1/3) ... [2021-09-22 14:53:00,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ddfed0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:53:00, skipping insertion in model container [2021-09-22 14:53:00,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:52:58" (2/3) ... [2021-09-22 14:53:00,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ddfed0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:53:00, skipping insertion in model container [2021-09-22 14:53:00,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:53:00" (3/3) ... [2021-09-22 14:53:00,174 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_pso.oepc.i [2021-09-22 14:53:00,179 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-09-22 14:53:00,179 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-09-22 14:53:00,179 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-09-22 14:53:00,179 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-09-22 14:53:00,207 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,207 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,207 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,207 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,208 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,208 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,208 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,208 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,208 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,209 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,209 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,209 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,210 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,210 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,210 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,210 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,210 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,210 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,214 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,214 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,214 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,214 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,214 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,214 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,215 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,215 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,215 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,215 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,215 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,215 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,215 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,219 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,219 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,219 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,219 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,219 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,219 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,220 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,220 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,220 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,220 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,221 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,221 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,221 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,232 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,232 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,238 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,239 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,240 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,240 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,240 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,240 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,240 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,241 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,241 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,241 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,241 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,241 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,241 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,242 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,242 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,242 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,242 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,242 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,243 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,243 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,243 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,244 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,244 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,244 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,244 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,245 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,245 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,245 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,245 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,247 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,247 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,257 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,257 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,257 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,258 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,258 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,259 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,261 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,261 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,261 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,261 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,262 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,263 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,263 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,263 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,263 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,264 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,265 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,266 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,266 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,266 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,266 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,266 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,266 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,267 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,267 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,267 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:53:00,268 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-09-22 14:53:00,311 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-09-22 14:53:00,317 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 [2021-09-22 14:53:00,317 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-09-22 14:53:00,339 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-09-22 14:53:00,356 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 105 transitions, 225 flow [2021-09-22 14:53:00,361 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 105 transitions, 225 flow [2021-09-22 14:53:00,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 105 transitions, 225 flow [2021-09-22 14:53:00,407 INFO L129 PetriNetUnfolder]: 2/102 cut-off events. [2021-09-22 14:53:00,408 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-09-22 14:53:00,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 102 events. 2/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2021-09-22 14:53:00,414 INFO L116 LiptonReduction]: Number of co-enabled transitions 1636 [2021-09-22 14:53:04,663 INFO L131 LiptonReduction]: Checked pairs total: 3538 [2021-09-22 14:53:04,663 INFO L133 LiptonReduction]: Total number of compositions: 88 [2021-09-22 14:53:04,676 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 26 transitions, 67 flow [2021-09-22 14:53:04,726 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 554 states, 551 states have (on average 3.252268602540835) internal successors, (1792), 553 states have internal predecessors, (1792), 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) [2021-09-22 14:53:04,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 554 states, 551 states have (on average 3.252268602540835) internal successors, (1792), 553 states have internal predecessors, (1792), 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) [2021-09-22 14:53:04,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-09-22 14:53:04,733 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:53:04,733 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:53:04,734 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:53:04,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:53:04,739 INFO L82 PathProgramCache]: Analyzing trace with hash -631619251, now seen corresponding path program 1 times [2021-09-22 14:53:04,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:53:04,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288456270] [2021-09-22 14:53:04,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:53:04,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:53:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:53:05,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:53:05,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:53:05,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288456270] [2021-09-22 14:53:05,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288456270] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:53:05,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:53:05,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-09-22 14:53:05,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797281265] [2021-09-22 14:53:05,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:53:05,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:53:05,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:53:05,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:53:05,043 INFO L87 Difference]: Start difference. First operand has 554 states, 551 states have (on average 3.252268602540835) internal successors, (1792), 553 states have internal predecessors, (1792), 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 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-09-22 14:53:05,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:53:05,113 INFO L93 Difference]: Finished difference Result 458 states and 1376 transitions. [2021-09-22 14:53:05,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:53:05,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-09-22 14:53:05,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:53:05,137 INFO L225 Difference]: With dead ends: 458 [2021-09-22 14:53:05,137 INFO L226 Difference]: Without dead ends: 442 [2021-09-22 14:53:05,138 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:53:05,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-09-22 14:53:05,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-09-22 14:53:05,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 3.0294784580498866) internal successors, (1336), 441 states have internal predecessors, (1336), 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) [2021-09-22 14:53:05,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 1336 transitions. [2021-09-22 14:53:05,210 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 1336 transitions. Word has length 7 [2021-09-22 14:53:05,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:53:05,211 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 1336 transitions. [2021-09-22 14:53:05,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-09-22 14:53:05,211 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1336 transitions. [2021-09-22 14:53:05,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-09-22 14:53:05,216 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:53:05,216 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:53:05,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-09-22 14:53:05,216 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:53:05,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:53:05,217 INFO L82 PathProgramCache]: Analyzing trace with hash -315329082, now seen corresponding path program 1 times [2021-09-22 14:53:05,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:53:05,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710764848] [2021-09-22 14:53:05,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:53:05,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:53:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:53:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:53:05,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:53:05,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710764848] [2021-09-22 14:53:05,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710764848] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:53:05,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:53:05,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:53:05,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491787019] [2021-09-22 14:53:05,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:53:05,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:53:05,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:53:05,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:53:05,370 INFO L87 Difference]: Start difference. First operand 442 states and 1336 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-09-22 14:53:05,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:53:05,401 INFO L93 Difference]: Finished difference Result 506 states and 1468 transitions. [2021-09-22 14:53:05,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:53:05,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-09-22 14:53:05,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:53:05,406 INFO L225 Difference]: With dead ends: 506 [2021-09-22 14:53:05,406 INFO L226 Difference]: Without dead ends: 426 [2021-09-22 14:53:05,407 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:53:05,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2021-09-22 14:53:05,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2021-09-22 14:53:05,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 425 states have (on average 3.0023529411764707) internal successors, (1276), 425 states have internal predecessors, (1276), 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) [2021-09-22 14:53:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1276 transitions. [2021-09-22 14:53:05,442 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1276 transitions. Word has length 10 [2021-09-22 14:53:05,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:53:05,442 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 1276 transitions. [2021-09-22 14:53:05,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-09-22 14:53:05,442 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1276 transitions. [2021-09-22 14:53:05,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-09-22 14:53:05,449 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:53:05,449 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:53:05,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-09-22 14:53:05,450 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:53:05,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:53:05,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1214226504, now seen corresponding path program 1 times [2021-09-22 14:53:05,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:53:05,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898535454] [2021-09-22 14:53:05,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:53:05,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:53:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:53:05,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:53:05,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:53:05,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898535454] [2021-09-22 14:53:05,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898535454] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:53:05,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:53:05,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:53:05,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001067105] [2021-09-22 14:53:05,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:53:05,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:53:05,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:53:05,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:53:05,543 INFO L87 Difference]: Start difference. First operand 426 states and 1276 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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) [2021-09-22 14:53:05,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:53:05,566 INFO L93 Difference]: Finished difference Result 374 states and 968 transitions. [2021-09-22 14:53:05,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:53:05,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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 [2021-09-22 14:53:05,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:53:05,569 INFO L225 Difference]: With dead ends: 374 [2021-09-22 14:53:05,569 INFO L226 Difference]: Without dead ends: 294 [2021-09-22 14:53:05,570 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:53:05,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-09-22 14:53:05,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2021-09-22 14:53:05,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 293 states have (on average 2.5529010238907848) internal successors, (748), 293 states have internal predecessors, (748), 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) [2021-09-22 14:53:05,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 748 transitions. [2021-09-22 14:53:05,577 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 748 transitions. Word has length 11 [2021-09-22 14:53:05,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:53:05,578 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 748 transitions. [2021-09-22 14:53:05,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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) [2021-09-22 14:53:05,578 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 748 transitions. [2021-09-22 14:53:05,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-09-22 14:53:05,579 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:53:05,579 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:53:05,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-09-22 14:53:05,579 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:53:05,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:53:05,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1298873435, now seen corresponding path program 1 times [2021-09-22 14:53:05,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:53:05,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540346852] [2021-09-22 14:53:05,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:53:05,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:53:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:53:05,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:53:05,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:53:05,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540346852] [2021-09-22 14:53:05,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540346852] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:53:05,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:53:05,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:53:05,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953799129] [2021-09-22 14:53:05,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:53:05,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:53:05,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:53:05,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:53:05,633 INFO L87 Difference]: Start difference. First operand 294 states and 748 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-09-22 14:53:05,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:53:05,668 INFO L93 Difference]: Finished difference Result 210 states and 473 transitions. [2021-09-22 14:53:05,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-09-22 14:53:05,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-09-22 14:53:05,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:53:05,670 INFO L225 Difference]: With dead ends: 210 [2021-09-22 14:53:05,670 INFO L226 Difference]: Without dead ends: 166 [2021-09-22 14:53:05,671 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.7ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:53:05,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-09-22 14:53:05,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-09-22 14:53:05,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 2.206060606060606) internal successors, (364), 165 states have internal predecessors, (364), 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) [2021-09-22 14:53:05,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 364 transitions. [2021-09-22 14:53:05,675 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 364 transitions. Word has length 13 [2021-09-22 14:53:05,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:53:05,676 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 364 transitions. [2021-09-22 14:53:05,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-09-22 14:53:05,677 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 364 transitions. [2021-09-22 14:53:05,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-09-22 14:53:05,678 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:53:05,678 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:53:05,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-09-22 14:53:05,678 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:53:05,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:53:05,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1964821795, now seen corresponding path program 1 times [2021-09-22 14:53:05,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:53:05,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671280443] [2021-09-22 14:53:05,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:53:05,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:53:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:53:05,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:53:05,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:53:05,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671280443] [2021-09-22 14:53:05,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671280443] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:53:05,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:53:05,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:53:05,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562583103] [2021-09-22 14:53:05,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:53:05,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:53:05,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:53:05,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:53:05,792 INFO L87 Difference]: Start difference. First operand 166 states and 364 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-09-22 14:53:05,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:53:05,858 INFO L93 Difference]: Finished difference Result 276 states and 579 transitions. [2021-09-22 14:53:05,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-09-22 14:53:05,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-09-22 14:53:05,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:53:05,860 INFO L225 Difference]: With dead ends: 276 [2021-09-22 14:53:05,861 INFO L226 Difference]: Without dead ends: 204 [2021-09-22 14:53:05,861 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 42.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-09-22 14:53:05,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-09-22 14:53:05,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 182. [2021-09-22 14:53:05,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.0386740331491713) internal successors, (369), 181 states have internal predecessors, (369), 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) [2021-09-22 14:53:05,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 369 transitions. [2021-09-22 14:53:05,866 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 369 transitions. Word has length 16 [2021-09-22 14:53:05,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:53:05,867 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 369 transitions. [2021-09-22 14:53:05,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-09-22 14:53:05,867 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 369 transitions. [2021-09-22 14:53:05,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-09-22 14:53:05,868 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:53:05,868 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:53:05,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-09-22 14:53:05,869 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:53:05,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:53:05,869 INFO L82 PathProgramCache]: Analyzing trace with hash -406781859, now seen corresponding path program 2 times [2021-09-22 14:53:05,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:53:05,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324235833] [2021-09-22 14:53:05,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:53:05,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:53:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:53:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:53:05,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:53:05,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324235833] [2021-09-22 14:53:05,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324235833] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:53:05,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:53:05,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:53:05,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752400290] [2021-09-22 14:53:05,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:53:05,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:53:05,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:53:05,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:53:05,944 INFO L87 Difference]: Start difference. First operand 182 states and 369 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-09-22 14:53:05,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:53:05,965 INFO L93 Difference]: Finished difference Result 251 states and 495 transitions. [2021-09-22 14:53:05,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:53:05,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-09-22 14:53:05,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:53:05,967 INFO L225 Difference]: With dead ends: 251 [2021-09-22 14:53:05,967 INFO L226 Difference]: Without dead ends: 186 [2021-09-22 14:53:05,967 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:53:05,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-09-22 14:53:05,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 182. [2021-09-22 14:53:05,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.0) internal successors, (362), 181 states have internal predecessors, (362), 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) [2021-09-22 14:53:05,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 362 transitions. [2021-09-22 14:53:05,972 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 362 transitions. Word has length 16 [2021-09-22 14:53:05,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:53:05,973 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 362 transitions. [2021-09-22 14:53:05,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-09-22 14:53:05,973 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 362 transitions. [2021-09-22 14:53:05,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-09-22 14:53:05,974 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:53:05,974 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:53:05,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-09-22 14:53:05,974 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:53:05,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:53:05,975 INFO L82 PathProgramCache]: Analyzing trace with hash -243769341, now seen corresponding path program 3 times [2021-09-22 14:53:05,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:53:05,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548790848] [2021-09-22 14:53:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:53:05,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:53:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:53:06,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:53:06,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:53:06,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548790848] [2021-09-22 14:53:06,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548790848] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:53:06,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:53:06,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-09-22 14:53:06,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808420813] [2021-09-22 14:53:06,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-09-22 14:53:06,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:53:06,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-09-22 14:53:06,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:53:06,052 INFO L87 Difference]: Start difference. First operand 182 states and 362 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-09-22 14:53:06,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:53:06,090 INFO L93 Difference]: Finished difference Result 150 states and 298 transitions. [2021-09-22 14:53:06,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-09-22 14:53:06,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-09-22 14:53:06,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:53:06,091 INFO L225 Difference]: With dead ends: 150 [2021-09-22 14:53:06,092 INFO L226 Difference]: Without dead ends: 80 [2021-09-22 14:53:06,092 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 19.4ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:53:06,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-09-22 14:53:06,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 68. [2021-09-22 14:53:06,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.8507462686567164) internal successors, (124), 67 states have internal predecessors, (124), 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) [2021-09-22 14:53:06,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 124 transitions. [2021-09-22 14:53:06,094 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 124 transitions. Word has length 16 [2021-09-22 14:53:06,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:53:06,095 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 124 transitions. [2021-09-22 14:53:06,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-09-22 14:53:06,095 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 124 transitions. [2021-09-22 14:53:06,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-09-22 14:53:06,095 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:53:06,095 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] [2021-09-22 14:53:06,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-09-22 14:53:06,096 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:53:06,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:53:06,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1639880908, now seen corresponding path program 1 times [2021-09-22 14:53:06,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:53:06,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793017951] [2021-09-22 14:53:06,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:53:06,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:53:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:53:06,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:53:06,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:53:06,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793017951] [2021-09-22 14:53:06,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793017951] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:53:06,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:53:06,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:53:06,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671484300] [2021-09-22 14:53:06,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:53:06,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:53:06,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:53:06,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:53:06,166 INFO L87 Difference]: Start difference. First operand 68 states and 124 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2021-09-22 14:53:06,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:53:06,188 INFO L93 Difference]: Finished difference Result 98 states and 178 transitions. [2021-09-22 14:53:06,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:53:06,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2021-09-22 14:53:06,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:53:06,189 INFO L225 Difference]: With dead ends: 98 [2021-09-22 14:53:06,190 INFO L226 Difference]: Without dead ends: 42 [2021-09-22 14:53:06,190 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.6ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:53:06,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-09-22 14:53:06,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-09-22 14:53:06,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.6585365853658536) internal successors, (68), 41 states have internal predecessors, (68), 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) [2021-09-22 14:53:06,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 68 transitions. [2021-09-22 14:53:06,192 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 68 transitions. Word has length 20 [2021-09-22 14:53:06,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:53:06,192 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 68 transitions. [2021-09-22 14:53:06,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2021-09-22 14:53:06,192 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 68 transitions. [2021-09-22 14:53:06,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-09-22 14:53:06,193 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:53:06,193 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] [2021-09-22 14:53:06,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-09-22 14:53:06,193 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:53:06,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:53:06,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1459564756, now seen corresponding path program 2 times [2021-09-22 14:53:06,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:53:06,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300703036] [2021-09-22 14:53:06,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:53:06,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:53:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:53:06,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:53:06,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:53:06,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300703036] [2021-09-22 14:53:06,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300703036] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:53:06,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:53:06,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-09-22 14:53:06,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353188816] [2021-09-22 14:53:06,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-09-22 14:53:06,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:53:06,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-09-22 14:53:06,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:53:06,312 INFO L87 Difference]: Start difference. First operand 42 states and 68 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2021-09-22 14:53:06,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:53:06,360 INFO L93 Difference]: Finished difference Result 53 states and 83 transitions. [2021-09-22 14:53:06,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-09-22 14:53:06,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 20 [2021-09-22 14:53:06,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:53:06,361 INFO L225 Difference]: With dead ends: 53 [2021-09-22 14:53:06,361 INFO L226 Difference]: Without dead ends: 30 [2021-09-22 14:53:06,362 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 30.5ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-09-22 14:53:06,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-09-22 14:53:06,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-09-22 14:53:06,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 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) [2021-09-22 14:53:06,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2021-09-22 14:53:06,363 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 20 [2021-09-22 14:53:06,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:53:06,363 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-09-22 14:53:06,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2021-09-22 14:53:06,364 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2021-09-22 14:53:06,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-09-22 14:53:06,364 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:53:06,364 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] [2021-09-22 14:53:06,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-09-22 14:53:06,365 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:53:06,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:53:06,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1270737666, now seen corresponding path program 3 times [2021-09-22 14:53:06,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:53:06,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453642185] [2021-09-22 14:53:06,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:53:06,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:53:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-22 14:53:06,427 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-09-22 14:53:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-22 14:53:06,514 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-09-22 14:53:06,515 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-09-22 14:53:06,516 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:53:06,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:53:06,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-09-22 14:53:06,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-09-22 14:53:06,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-09-22 14:53:06,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:53:06,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-09-22 14:53:06,523 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-09-22 14:53:06,523 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-09-22 14:53:06,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.09 02:53:06 BasicIcfg [2021-09-22 14:53:06,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-09-22 14:53:06,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-09-22 14:53:06,628 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-09-22 14:53:06,628 INFO L275 PluginConnector]: Witness Printer initialized [2021-09-22 14:53:06,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:53:00" (3/4) ... [2021-09-22 14:53:06,630 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-09-22 14:53:06,721 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-09-22 14:53:06,721 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-09-22 14:53:06,723 INFO L168 Benchmark]: Toolchain (without parser) took 8530.55 ms. Allocated memory was 54.5 MB in the beginning and 130.0 MB in the end (delta: 75.5 MB). Free memory was 29.2 MB in the beginning and 74.4 MB in the end (delta: -45.2 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. [2021-09-22 14:53:06,723 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 36.0 MB in the end (delta: 25.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-09-22 14:53:06,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.63 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 29.0 MB in the beginning and 39.6 MB in the end (delta: -10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-09-22 14:53:06,724 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.43 ms. Allocated memory is still 69.2 MB. Free memory was 39.4 MB in the beginning and 37.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:53:06,724 INFO L168 Benchmark]: Boogie Preprocessor took 51.94 ms. Allocated memory is still 69.2 MB. Free memory was 37.0 MB in the beginning and 34.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:53:06,725 INFO L168 Benchmark]: RCFGBuilder took 1362.79 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 34.9 MB in the beginning and 37.5 MB in the end (delta: -2.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-09-22 14:53:06,725 INFO L168 Benchmark]: TraceAbstraction took 6476.70 ms. Allocated memory was 83.9 MB in the beginning and 130.0 MB in the end (delta: 46.1 MB). Free memory was 37.0 MB in the beginning and 89.1 MB in the end (delta: -52.1 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. [2021-09-22 14:53:06,725 INFO L168 Benchmark]: Witness Printer took 93.98 ms. Allocated memory is still 130.0 MB. Free memory was 89.1 MB in the beginning and 74.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-09-22 14:53:06,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 36.0 MB in the end (delta: 25.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 472.63 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 29.0 MB in the beginning and 39.6 MB in the end (delta: -10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.43 ms. Allocated memory is still 69.2 MB. Free memory was 39.4 MB in the beginning and 37.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.94 ms. Allocated memory is still 69.2 MB. Free memory was 37.0 MB in the beginning and 34.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1362.79 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 34.9 MB in the beginning and 37.5 MB in the end (delta: -2.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6476.70 ms. Allocated memory was 83.9 MB in the beginning and 130.0 MB in the end (delta: 46.1 MB). Free memory was 37.0 MB in the beginning and 89.1 MB in the end (delta: -52.1 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. * Witness Printer took 93.98 ms. Allocated memory is still 130.0 MB. Free memory was 89.1 MB in the beginning and 74.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4302.6ms, 113 PlacesBefore, 35 PlacesAfterwards, 105 TransitionsBefore, 26 TransitionsAfterwards, 1636 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 88 TotalNumberOfCompositions, 3538 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1858, positive: 1738, positive conditional: 0, positive unconditional: 1738, negative: 120, negative conditional: 0, negative unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1062, positive: 1029, positive conditional: 0, positive unconditional: 1029, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1062, positive: 1012, positive conditional: 0, positive unconditional: 1012, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 246, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 220, negative conditional: 0, negative unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1858, positive: 709, positive conditional: 0, positive unconditional: 709, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 1062, unknown conditional: 0, unknown unconditional: 1062] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - 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 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; [L719] 0 int y = 0; [L720] 0 _Bool y$flush_delayed; [L721] 0 int y$mem_tmp; [L722] 0 _Bool y$r_buff0_thd0; [L723] 0 _Bool y$r_buff0_thd1; [L724] 0 _Bool y$r_buff0_thd2; [L725] 0 _Bool y$r_buff0_thd3; [L726] 0 _Bool y$r_buff1_thd0; [L727] 0 _Bool y$r_buff1_thd1; [L728] 0 _Bool y$r_buff1_thd2; [L729] 0 _Bool y$r_buff1_thd3; [L730] 0 _Bool y$read_delayed; [L731] 0 int *y$read_delayed_var; [L732] 0 int y$w_buff0; [L733] 0 _Bool y$w_buff0_used; [L734] 0 int y$w_buff1; [L735] 0 _Bool y$w_buff1_used; [L737] 0 int z = 0; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L827] 0 pthread_t t2583; [L828] FCALL, FORK 0 pthread_create(&t2583, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L829] 0 pthread_t t2584; [L830] FCALL, FORK 0 pthread_create(&t2584, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L831] 0 pthread_t t2585; [L832] FCALL, FORK 0 pthread_create(&t2585, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L790] 3 y$w_buff1 = y$w_buff0 [L791] 3 y$w_buff0 = 1 [L792] 3 y$w_buff1_used = y$w_buff0_used [L793] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L795] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L796] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L797] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L798] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L799] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L802] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L743] 1 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L748] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L760] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L765] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L766] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L767] 2 y$flush_delayed = weak$$choice2 [L768] 2 y$mem_tmp = y [L769] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L769] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L770] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L770] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L771] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L771] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L772] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L772] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L773] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L773] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L774] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L774] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L775] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L775] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L776] 2 __unbuffered_p1_EAX = y [L777] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L777] 2 y = y$flush_delayed ? y$mem_tmp : y [L778] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L785] 2 return 0; [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L755] 1 return 0; [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L805] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L806] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L806] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L807] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L807] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L808] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L808] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L809] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L809] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L812] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L814] 3 return 0; [L834] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L838] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L838] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L838] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L838] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L839] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L839] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L840] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L840] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L841] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L841] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L842] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L842] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L845] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 828]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 830]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 130 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 6211.5ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 21.4ms, AutomataDifference: 439.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4408.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 241 SDtfs, 237 SDslu, 449 SDs, 0 SdLazy, 160 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 148.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 153.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=554occurred in iteration=0, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 120.8ms AutomataMinimizationTime, 9 MinimizatonAttempts, 38 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 35.2ms SsaConstructionTime, 344.9ms SatisfiabilityAnalysisTime, 541.1ms InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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 RESULT: Ultimate proved your program to be incorrect! [2021-09-22 14:53:06,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...