./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix034_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/mix034_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 e8b567b15c21a96721610ad8ce722cad8c2b3af8 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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 14:42:24,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-09-22 14:42:24,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-09-22 14:42:24,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-09-22 14:42:24,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-09-22 14:42:24,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-09-22 14:42:24,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-09-22 14:42:24,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-09-22 14:42:24,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-09-22 14:42:24,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-09-22 14:42:24,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-09-22 14:42:24,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-09-22 14:42:24,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-09-22 14:42:24,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-09-22 14:42:24,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-09-22 14:42:24,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-09-22 14:42:24,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-09-22 14:42:24,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-09-22 14:42:24,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-09-22 14:42:24,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-09-22 14:42:24,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-09-22 14:42:24,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-09-22 14:42:24,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-09-22 14:42:24,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-09-22 14:42:24,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-09-22 14:42:24,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-09-22 14:42:24,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-09-22 14:42:24,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-09-22 14:42:24,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-09-22 14:42:24,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-09-22 14:42:24,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-09-22 14:42:24,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-09-22 14:42:24,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-09-22 14:42:24,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-09-22 14:42:24,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-09-22 14:42:24,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-09-22 14:42:24,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-09-22 14:42:24,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-09-22 14:42:24,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-09-22 14:42:24,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-09-22 14:42:24,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-09-22 14:42:24,899 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-09-22 14:42:24,914 INFO L113 SettingsManager]: Loading preferences was successful [2021-09-22 14:42:24,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-09-22 14:42:24,915 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-09-22 14:42:24,915 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-09-22 14:42:24,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-09-22 14:42:24,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-09-22 14:42:24,916 INFO L138 SettingsManager]: * Use SBE=true [2021-09-22 14:42:24,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-09-22 14:42:24,916 INFO L138 SettingsManager]: * sizeof long=4 [2021-09-22 14:42:24,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-09-22 14:42:24,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-09-22 14:42:24,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-09-22 14:42:24,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-09-22 14:42:24,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-09-22 14:42:24,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-09-22 14:42:24,917 INFO L138 SettingsManager]: * sizeof long double=12 [2021-09-22 14:42:24,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-09-22 14:42:24,918 INFO L138 SettingsManager]: * Use constant arrays=true [2021-09-22 14:42:24,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-09-22 14:42:24,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-09-22 14:42:24,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-09-22 14:42:24,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-09-22 14:42:24,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:42:24,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-09-22 14:42:24,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-09-22 14:42:24,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-09-22 14:42:24,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-09-22 14:42:24,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-09-22 14:42:24,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-09-22 14:42:24,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-09-22 14:42:24,920 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8b567b15c21a96721610ad8ce722cad8c2b3af8 [2021-09-22 14:42:25,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-09-22 14:42:25,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-09-22 14:42:25,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-09-22 14:42:25,213 INFO L271 PluginConnector]: Initializing CDTParser... [2021-09-22 14:42:25,213 INFO L275 PluginConnector]: CDTParser initialized [2021-09-22 14:42:25,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix034_pso.oepc.i [2021-09-22 14:42:25,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c564765/5feb5bd672804fceb4a310f811f6f066/FLAGa2a1c327e [2021-09-22 14:42:25,703 INFO L306 CDTParser]: Found 1 translation units. [2021-09-22 14:42:25,703 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix034_pso.oepc.i [2021-09-22 14:42:25,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c564765/5feb5bd672804fceb4a310f811f6f066/FLAGa2a1c327e [2021-09-22 14:42:26,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c564765/5feb5bd672804fceb4a310f811f6f066 [2021-09-22 14:42:26,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-09-22 14:42:26,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-09-22 14:42:26,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-09-22 14:42:26,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-09-22 14:42:26,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-09-22 14:42:26,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:42:26" (1/1) ... [2021-09-22 14:42:26,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e8ce1dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:26, skipping insertion in model container [2021-09-22 14:42:26,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:42:26" (1/1) ... [2021-09-22 14:42:26,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-09-22 14:42:26,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-09-22 14:42:26,251 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/mix034_pso.oepc.i[949,962] [2021-09-22 14:42:26,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:42:26,453 INFO L203 MainTranslator]: Completed pre-run [2021-09-22 14:42:26,462 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/mix034_pso.oepc.i[949,962] [2021-09-22 14:42:26,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:42:26,546 INFO L208 MainTranslator]: Completed translation [2021-09-22 14:42:26,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:26 WrapperNode [2021-09-22 14:42:26,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-09-22 14:42:26,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-09-22 14:42:26,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-09-22 14:42:26,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-09-22 14:42:26,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:26" (1/1) ... [2021-09-22 14:42:26,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:26" (1/1) ... [2021-09-22 14:42:26,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-09-22 14:42:26,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-09-22 14:42:26,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-09-22 14:42:26,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-09-22 14:42:26,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:26" (1/1) ... [2021-09-22 14:42:26,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:26" (1/1) ... [2021-09-22 14:42:26,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:26" (1/1) ... [2021-09-22 14:42:26,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:26" (1/1) ... [2021-09-22 14:42:26,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:26" (1/1) ... [2021-09-22 14:42:26,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:26" (1/1) ... [2021-09-22 14:42:26,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:26" (1/1) ... [2021-09-22 14:42:26,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-09-22 14:42:26,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-09-22 14:42:26,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-09-22 14:42:26,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-09-22 14:42:26,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:26" (1/1) ... [2021-09-22 14:42:26,662 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:42:26,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-09-22 14:42:26,691 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 14:42:26,714 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 14:42:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-09-22 14:42:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-09-22 14:42:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-09-22 14:42:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-09-22 14:42:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-09-22 14:42:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-09-22 14:42:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-09-22 14:42:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-09-22 14:42:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-09-22 14:42:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-09-22 14:42:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-09-22 14:42:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-09-22 14:42:26,734 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 14:42:27,735 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-09-22 14:42:27,736 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-09-22 14:42:27,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:42:27 BoogieIcfgContainer [2021-09-22 14:42:27,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-09-22 14:42:27,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-09-22 14:42:27,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-09-22 14:42:27,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-09-22 14:42:27,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 02:42:26" (1/3) ... [2021-09-22 14:42:27,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed657a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:42:27, skipping insertion in model container [2021-09-22 14:42:27,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:26" (2/3) ... [2021-09-22 14:42:27,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed657a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:42:27, skipping insertion in model container [2021-09-22 14:42:27,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:42:27" (3/3) ... [2021-09-22 14:42:27,742 INFO L111 eAbstractionObserver]: Analyzing ICFG mix034_pso.oepc.i [2021-09-22 14:42:27,745 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-09-22 14:42:27,745 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-09-22 14:42:27,745 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-09-22 14:42:27,745 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-09-22 14:42:27,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,768 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,769 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,769 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,769 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,769 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,769 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,770 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,770 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,770 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,770 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,770 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,770 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,772 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,772 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,772 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,772 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,772 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,772 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,773 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,773 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,773 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,774 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,774 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,774 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,791 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,793 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,794 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,794 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,796 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,796 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,796 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,796 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,796 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,796 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,796 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:27,797 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-09-22 14:42:27,832 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-09-22 14:42:27,836 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 14:42:27,836 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-09-22 14:42:27,844 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-09-22 14:42:27,850 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 91 transitions, 192 flow [2021-09-22 14:42:27,851 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 91 transitions, 192 flow [2021-09-22 14:42:27,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 91 transitions, 192 flow [2021-09-22 14:42:27,873 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2021-09-22 14:42:27,873 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-09-22 14:42:27,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2021-09-22 14:42:27,876 INFO L116 LiptonReduction]: Number of co-enabled transitions 1140 [2021-09-22 14:42:30,898 INFO L131 LiptonReduction]: Checked pairs total: 2911 [2021-09-22 14:42:30,898 INFO L133 LiptonReduction]: Total number of compositions: 81 [2021-09-22 14:42:30,904 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 22 transitions, 54 flow [2021-09-22 14:42:30,926 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 206 states, 203 states have (on average 2.6206896551724137) internal successors, (532), 205 states have internal predecessors, (532), 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 14:42:30,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 203 states have (on average 2.6206896551724137) internal successors, (532), 205 states have internal predecessors, (532), 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 14:42:30,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-09-22 14:42:30,944 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:30,945 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-09-22 14:42:30,946 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:30,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:30,949 INFO L82 PathProgramCache]: Analyzing trace with hash 948721, now seen corresponding path program 1 times [2021-09-22 14:42:30,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:30,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901243193] [2021-09-22 14:42:30,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:30,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:31,144 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 14:42:31,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:31,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901243193] [2021-09-22 14:42:31,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901243193] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:31,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:31,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-09-22 14:42:31,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880155259] [2021-09-22 14:42:31,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:42:31,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:31,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:42:31,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:42:31,168 INFO L87 Difference]: Start difference. First operand has 206 states, 203 states have (on average 2.6206896551724137) internal successors, (532), 205 states have internal predecessors, (532), 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 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 14:42:31,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:31,233 INFO L93 Difference]: Finished difference Result 168 states and 396 transitions. [2021-09-22 14:42:31,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:42:31,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2021-09-22 14:42:31,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:31,245 INFO L225 Difference]: With dead ends: 168 [2021-09-22 14:42:31,245 INFO L226 Difference]: Without dead ends: 162 [2021-09-22 14:42:31,250 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:42:31,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-09-22 14:42:31,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2021-09-22 14:42:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 2.391304347826087) internal successors, (385), 161 states have internal predecessors, (385), 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 14:42:31,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 385 transitions. [2021-09-22 14:42:31,294 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 385 transitions. Word has length 3 [2021-09-22 14:42:31,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:31,295 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 385 transitions. [2021-09-22 14:42:31,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 14:42:31,295 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 385 transitions. [2021-09-22 14:42:31,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-09-22 14:42:31,296 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:31,296 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:31,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-09-22 14:42:31,296 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:31,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:31,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1886494057, now seen corresponding path program 1 times [2021-09-22 14:42:31,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:31,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769398850] [2021-09-22 14:42:31,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:31,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:31,411 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 14:42:31,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:31,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769398850] [2021-09-22 14:42:31,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769398850] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:31,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:31,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:42:31,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508402921] [2021-09-22 14:42:31,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:42:31,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:31,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:42:31,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:42:31,416 INFO L87 Difference]: Start difference. First operand 162 states and 385 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 14:42:31,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:31,445 INFO L93 Difference]: Finished difference Result 184 states and 414 transitions. [2021-09-22 14:42:31,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:42:31,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-09-22 14:42:31,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:31,450 INFO L225 Difference]: With dead ends: 184 [2021-09-22 14:42:31,450 INFO L226 Difference]: Without dead ends: 154 [2021-09-22 14:42:31,451 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:31,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-09-22 14:42:31,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-09-22 14:42:31,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 2.3594771241830066) internal successors, (361), 153 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:31,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 361 transitions. [2021-09-22 14:42:31,466 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 361 transitions. Word has length 8 [2021-09-22 14:42:31,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:31,467 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 361 transitions. [2021-09-22 14:42:31,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 14:42:31,467 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 361 transitions. [2021-09-22 14:42:31,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-09-22 14:42:31,468 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:31,468 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:31,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-09-22 14:42:31,469 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:31,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:31,475 INFO L82 PathProgramCache]: Analyzing trace with hash -256394923, now seen corresponding path program 1 times [2021-09-22 14:42:31,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:31,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37305079] [2021-09-22 14:42:31,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:31,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:31,525 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 14:42:31,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:31,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37305079] [2021-09-22 14:42:31,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37305079] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:31,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:31,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:42:31,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226689509] [2021-09-22 14:42:31,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:42:31,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:31,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:42:31,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:31,527 INFO L87 Difference]: Start difference. First operand 154 states and 361 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 14:42:31,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:31,551 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2021-09-22 14:42:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:42:31,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 14:42:31,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:31,552 INFO L225 Difference]: With dead ends: 160 [2021-09-22 14:42:31,552 INFO L226 Difference]: Without dead ends: 142 [2021-09-22 14:42:31,553 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:42:31,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-09-22 14:42:31,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2021-09-22 14:42:31,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 2.3333333333333335) internal successors, (329), 141 states have internal predecessors, (329), 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 14:42:31,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 329 transitions. [2021-09-22 14:42:31,556 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 329 transitions. Word has length 10 [2021-09-22 14:42:31,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:31,557 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 329 transitions. [2021-09-22 14:42:31,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 14:42:31,557 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 329 transitions. [2021-09-22 14:42:31,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-09-22 14:42:31,557 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:31,558 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:31,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-09-22 14:42:31,558 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:31,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:31,558 INFO L82 PathProgramCache]: Analyzing trace with hash 442927769, now seen corresponding path program 1 times [2021-09-22 14:42:31,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:31,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986071768] [2021-09-22 14:42:31,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:31,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:31,602 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 14:42:31,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:31,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986071768] [2021-09-22 14:42:31,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986071768] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:31,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:31,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:42:31,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632925190] [2021-09-22 14:42:31,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:42:31,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:31,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:42:31,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:42:31,605 INFO L87 Difference]: Start difference. First operand 142 states and 329 transitions. Second operand has 4 states, 4 states have (on average 2.5) 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 14:42:31,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:31,621 INFO L93 Difference]: Finished difference Result 108 states and 206 transitions. [2021-09-22 14:42:31,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:42:31,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) 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 14:42:31,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:31,624 INFO L225 Difference]: With dead ends: 108 [2021-09-22 14:42:31,625 INFO L226 Difference]: Without dead ends: 78 [2021-09-22 14:42:31,625 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:31,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-09-22 14:42:31,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-09-22 14:42:31,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.7792207792207793) internal successors, (137), 77 states have internal predecessors, (137), 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 14:42:31,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 137 transitions. [2021-09-22 14:42:31,627 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 137 transitions. Word has length 10 [2021-09-22 14:42:31,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:31,628 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 137 transitions. [2021-09-22 14:42:31,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) 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 14:42:31,628 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 137 transitions. [2021-09-22 14:42:31,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-09-22 14:42:31,629 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:31,629 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:31,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-09-22 14:42:31,629 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:31,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:31,630 INFO L82 PathProgramCache]: Analyzing trace with hash 118895140, now seen corresponding path program 1 times [2021-09-22 14:42:31,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:31,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261323141] [2021-09-22 14:42:31,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:31,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:31,690 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 14:42:31,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:31,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261323141] [2021-09-22 14:42:31,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261323141] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:31,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:31,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:42:31,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452580970] [2021-09-22 14:42:31,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:42:31,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:31,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:42:31,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:31,692 INFO L87 Difference]: Start difference. First operand 78 states and 137 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 14:42:31,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:31,709 INFO L93 Difference]: Finished difference Result 56 states and 91 transitions. [2021-09-22 14:42:31,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-09-22 14:42:31,710 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 14:42:31,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:31,710 INFO L225 Difference]: With dead ends: 56 [2021-09-22 14:42:31,710 INFO L226 Difference]: Without dead ends: 46 [2021-09-22 14:42:31,711 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:42:31,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-09-22 14:42:31,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-09-22 14:42:31,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 45 states have internal predecessors, (73), 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 14:42:31,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 73 transitions. [2021-09-22 14:42:31,712 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 73 transitions. Word has length 13 [2021-09-22 14:42:31,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:31,712 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 73 transitions. [2021-09-22 14:42:31,712 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 14:42:31,712 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 73 transitions. [2021-09-22 14:42:31,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-09-22 14:42:31,713 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:31,713 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:31,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-09-22 14:42:31,713 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:31,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:31,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1750655142, now seen corresponding path program 1 times [2021-09-22 14:42:31,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:31,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447581008] [2021-09-22 14:42:31,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:31,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:31,801 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 14:42:31,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:31,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447581008] [2021-09-22 14:42:31,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447581008] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:31,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:31,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:42:31,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269706613] [2021-09-22 14:42:31,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:42:31,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:31,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:42:31,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:31,803 INFO L87 Difference]: Start difference. First operand 46 states and 73 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 14:42:31,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:31,834 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2021-09-22 14:42:31,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-09-22 14:42:31,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 17 [2021-09-22 14:42:31,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:31,835 INFO L225 Difference]: With dead ends: 64 [2021-09-22 14:42:31,835 INFO L226 Difference]: Without dead ends: 46 [2021-09-22 14:42:31,836 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:42:31,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-09-22 14:42:31,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2021-09-22 14:42:31,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.564102564102564) internal successors, (61), 39 states have internal predecessors, (61), 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 14:42:31,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 61 transitions. [2021-09-22 14:42:31,837 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 61 transitions. Word has length 17 [2021-09-22 14:42:31,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:31,837 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 61 transitions. [2021-09-22 14:42:31,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 14:42:31,837 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 61 transitions. [2021-09-22 14:42:31,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-09-22 14:42:31,838 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:31,838 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:31,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-09-22 14:42:31,838 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:31,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:31,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1963235900, now seen corresponding path program 2 times [2021-09-22 14:42:31,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:31,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599042183] [2021-09-22 14:42:31,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:31,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:31,905 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 14:42:31,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:31,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599042183] [2021-09-22 14:42:31,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599042183] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:31,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:31,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-09-22 14:42:31,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870845932] [2021-09-22 14:42:31,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-09-22 14:42:31,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:31,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-09-22 14:42:31,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:42:31,907 INFO L87 Difference]: Start difference. First operand 40 states and 61 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 14:42:31,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:31,936 INFO L93 Difference]: Finished difference Result 58 states and 86 transitions. [2021-09-22 14:42:31,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-09-22 14:42:31,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2021-09-22 14:42:31,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:31,937 INFO L225 Difference]: With dead ends: 58 [2021-09-22 14:42:31,937 INFO L226 Difference]: Without dead ends: 36 [2021-09-22 14:42:31,938 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 22.9ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-09-22 14:42:31,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-09-22 14:42:31,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-09-22 14:42:31,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 35 states have internal predecessors, (53), 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 14:42:31,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 53 transitions. [2021-09-22 14:42:31,939 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 53 transitions. Word has length 17 [2021-09-22 14:42:31,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:31,939 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 53 transitions. [2021-09-22 14:42:31,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 14:42:31,939 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2021-09-22 14:42:31,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-09-22 14:42:31,940 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:31,940 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:31,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-09-22 14:42:31,940 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-09-22 14:42:31,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:31,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1316577380, now seen corresponding path program 3 times [2021-09-22 14:42:31,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:31,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264959804] [2021-09-22 14:42:31,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:31,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-22 14:42:31,968 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-09-22 14:42:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-22 14:42:32,011 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-09-22 14:42:32,017 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-09-22 14:42:32,018 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:42:32,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:42:32,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-09-22 14:42:32,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-09-22 14:42:32,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:42:32,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-09-22 14:42:32,023 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-09-22 14:42:32,023 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-09-22 14:42:32,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.09 02:42:32 BasicIcfg [2021-09-22 14:42:32,060 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-09-22 14:42:32,065 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-09-22 14:42:32,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-09-22 14:42:32,065 INFO L275 PluginConnector]: Witness Printer initialized [2021-09-22 14:42:32,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:42:27" (3/4) ... [2021-09-22 14:42:32,066 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-09-22 14:42:32,114 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-09-22 14:42:32,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-09-22 14:42:32,115 INFO L168 Benchmark]: Toolchain (without parser) took 6018.13 ms. Allocated memory was 69.2 MB in the beginning and 144.7 MB in the end (delta: 75.5 MB). Free memory was 49.2 MB in the beginning and 39.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 84.2 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:32,116 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 69.2 MB. Free memory is still 52.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-09-22 14:42:32,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.33 ms. Allocated memory is still 69.2 MB. Free memory was 49.0 MB in the beginning and 41.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:32,116 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.27 ms. Allocated memory is still 69.2 MB. Free memory was 41.5 MB in the beginning and 39.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:32,116 INFO L168 Benchmark]: Boogie Preprocessor took 47.43 ms. Allocated memory is still 69.2 MB. Free memory was 39.0 MB in the beginning and 36.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:32,117 INFO L168 Benchmark]: RCFGBuilder took 1081.07 ms. Allocated memory was 69.2 MB in the beginning and 98.6 MB in the end (delta: 29.4 MB). Free memory was 36.9 MB in the beginning and 55.0 MB in the end (delta: -18.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:32,117 INFO L168 Benchmark]: TraceAbstraction took 4321.38 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 55.0 MB in the beginning and 52.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 47.7 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:32,117 INFO L168 Benchmark]: Witness Printer took 49.93 ms. Allocated memory is still 144.7 MB. Free memory was 52.5 MB in the beginning and 39.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:32,118 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 69.2 MB. Free memory is still 52.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 447.33 ms. Allocated memory is still 69.2 MB. Free memory was 49.0 MB in the beginning and 41.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.27 ms. Allocated memory is still 69.2 MB. Free memory was 41.5 MB in the beginning and 39.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.43 ms. Allocated memory is still 69.2 MB. Free memory was 39.0 MB in the beginning and 36.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1081.07 ms. Allocated memory was 69.2 MB in the beginning and 98.6 MB in the end (delta: 29.4 MB). Free memory was 36.9 MB in the beginning and 55.0 MB in the end (delta: -18.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4321.38 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 55.0 MB in the beginning and 52.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 47.7 MB. Max. memory is 16.1 GB. * Witness Printer took 49.93 ms. Allocated memory is still 144.7 MB. Free memory was 52.5 MB in the beginning and 39.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3046.8ms, 96 PlacesBefore, 28 PlacesAfterwards, 91 TransitionsBefore, 22 TransitionsAfterwards, 1140 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 81 TotalNumberOfCompositions, 2911 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1554, positive: 1431, positive conditional: 0, positive unconditional: 1431, negative: 123, negative conditional: 0, negative unconditional: 123, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 856, positive: 810, positive conditional: 0, positive unconditional: 810, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 856, positive: 792, positive conditional: 0, positive unconditional: 792, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 64, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 235, negative conditional: 0, negative unconditional: 235, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1554, positive: 621, positive conditional: 0, positive unconditional: 621, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 856, unknown conditional: 0, unknown unconditional: 856] , Statistics on independence cache: Total cache size (in pairs): 109, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - 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: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p0_EAX = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L714] 0 int __unbuffered_p1_EBX = 0; [L715] 0 _Bool main$tmp_guard0; [L716] 0 _Bool main$tmp_guard1; [L718] 0 int x = 0; [L720] 0 int y = 0; [L722] 0 int z = 0; [L723] 0 _Bool z$flush_delayed; [L724] 0 int z$mem_tmp; [L725] 0 _Bool z$r_buff0_thd0; [L726] 0 _Bool z$r_buff0_thd1; [L727] 0 _Bool z$r_buff0_thd2; [L728] 0 _Bool z$r_buff1_thd0; [L729] 0 _Bool z$r_buff1_thd1; [L730] 0 _Bool z$r_buff1_thd2; [L731] 0 _Bool z$read_delayed; [L732] 0 int *z$read_delayed_var; [L733] 0 int z$w_buff0; [L734] 0 _Bool z$w_buff0_used; [L735] 0 int z$w_buff1; [L736] 0 _Bool z$w_buff1_used; [L737] 0 _Bool weak$$choice0; [L738] 0 _Bool weak$$choice2; [L817] 0 pthread_t t901; [L818] FCALL, FORK 0 pthread_create(&t901, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L819] 0 pthread_t t902; [L742] 1 z$w_buff1 = z$w_buff0 [L743] 1 z$w_buff0 = 1 [L744] 1 z$w_buff1_used = z$w_buff0_used [L745] 1 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L747] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L748] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L749] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L750] 1 z$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L820] FCALL, FORK 0 pthread_create(&t902, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L753] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L773] 2 y = 1 [L776] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L779] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L780] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L781] 2 z$flush_delayed = weak$$choice2 [L782] 2 z$mem_tmp = z [L783] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L783] 2 z = !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L784] EXPR 2 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L784] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0) [L784] EXPR 2 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L784] 2 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L785] EXPR 2 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L785] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1) [L785] EXPR 2 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L785] 2 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L786] EXPR 2 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L786] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used) [L786] EXPR 2 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L786] 2 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L787] EXPR 2 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L787] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L787] EXPR 2 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L787] 2 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L788] EXPR 2 weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L788] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2) [L788] EXPR 2 weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L788] 2 z$r_buff0_thd2 = weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L789] EXPR 2 weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L789] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L789] EXPR 2 weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L789] 2 z$r_buff1_thd2 = weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L790] 2 __unbuffered_p1_EBX = z [L791] EXPR 2 z$flush_delayed ? z$mem_tmp : z [L791] 2 z = z$flush_delayed ? z$mem_tmp : z [L792] 2 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L795] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L795] EXPR 2 z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z [L795] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L795] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L796] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L796] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L797] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L797] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L798] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L798] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L799] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 [L799] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 [L802] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L804] 2 return 0; [L756] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L756] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L757] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L757] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L758] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L758] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L759] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L759] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L760] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 [L760] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 [L763] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L765] 1 return 0; [L822] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L826] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L826] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L826] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L826] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L827] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L827] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L828] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L828] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L829] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L829] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L830] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L830] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L833] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - 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: 818]: 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: 820]: 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 5 procedures, 111 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 4190.1ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 22.4ms, AutomataDifference: 262.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3089.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 146 SDtfs, 155 SDslu, 243 SDs, 0 SdLazy, 88 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 99.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 84.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=206occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 60.9ms AutomataMinimizationTime, 7 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.4ms SsaConstructionTime, 210.2ms SatisfiabilityAnalysisTime, 303.5ms InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 379 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 14:42:32,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...