./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 927eec9b21606ebcbb8bef18e7800fece5242abf ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:29,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:29,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:29,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:29,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:29,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:29,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:29,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:29,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:29,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:29,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:29,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:29,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:29,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:29,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:29,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:29,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:29,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:29,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:29,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:29,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:29,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:29,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:29,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:29,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:29,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:29,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:29,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:29,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:29,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:29,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:29,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:29,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:29,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:29,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:29,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:29,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:29,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:29,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:29,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:29,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:29,926 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:58:29,938 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:29,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:29,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:29,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:29,944 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:29,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:29,945 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:29,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:29,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:29,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:29,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:29,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:29,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:29,945 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:29,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:29,946 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:29,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:29,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:29,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:29,946 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:29,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:29,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:29,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:29,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:29,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:29,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:29,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:29,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:29,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/bin/uautomizer 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(__VERIFIER_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 -> 927eec9b21606ebcbb8bef18e7800fece5242abf [2019-10-22 08:58:29,980 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:29,990 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:29,992 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:29,994 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:29,994 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:29,994 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i [2019-10-22 08:58:30,043 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/bin/uautomizer/data/3e03e475e/eae6d59ad8744ecb829507e73e26e55d/FLAGbee5dbebe [2019-10-22 08:58:30,475 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:30,476 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i [2019-10-22 08:58:30,488 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/bin/uautomizer/data/3e03e475e/eae6d59ad8744ecb829507e73e26e55d/FLAGbee5dbebe [2019-10-22 08:58:30,827 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/bin/uautomizer/data/3e03e475e/eae6d59ad8744ecb829507e73e26e55d [2019-10-22 08:58:30,829 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:30,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:30,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:30,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:30,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:30,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:30" (1/1) ... [2019-10-22 08:58:30,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:30, skipping insertion in model container [2019-10-22 08:58:30,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:30" (1/1) ... [2019-10-22 08:58:30,842 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:30,889 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:31,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:31,271 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:31,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:31,370 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:31,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31 WrapperNode [2019-10-22 08:58:31,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:31,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:31,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:31,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:31,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:31,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:31,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:31,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:31,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... [2019-10-22 08:58:31,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:31,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:31,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:31,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:31,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:58:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:58:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:58:31,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:58:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:58:31,496 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:58:31,496 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 08:58:31,496 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 08:58:31,496 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-10-22 08:58:31,496 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-10-22 08:58:31,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:58:31,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:31,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:31,498 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 08:58:31,728 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:31,728 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:58:31,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:31 BoogieIcfgContainer [2019-10-22 08:58:31,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:31,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:31,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:31,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:31,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:30" (1/3) ... [2019-10-22 08:58:31,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f215b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:31, skipping insertion in model container [2019-10-22 08:58:31,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:31" (2/3) ... [2019-10-22 08:58:31,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f215b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:31, skipping insertion in model container [2019-10-22 08:58:31,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:31" (3/3) ... [2019-10-22 08:58:31,748 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2019-10-22 08:58:31,787 WARN L315 ript$VariableManager]: TermVariabe |Thread3_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,787 WARN L315 ript$VariableManager]: TermVariabe |Thread3_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,787 WARN L315 ript$VariableManager]: TermVariabe Thread3_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,787 WARN L315 ript$VariableManager]: TermVariabe Thread3_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,795 WARN L315 ript$VariableManager]: TermVariabe |Thread3_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,795 WARN L315 ript$VariableManager]: TermVariabe |Thread3_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,796 WARN L315 ript$VariableManager]: TermVariabe |Thread3_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,796 WARN L315 ript$VariableManager]: TermVariabe |Thread3_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,796 WARN L315 ript$VariableManager]: TermVariabe |Thread3_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,796 WARN L315 ript$VariableManager]: TermVariabe |Thread3_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,796 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,796 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,797 WARN L315 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,797 WARN L315 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,797 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,797 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,797 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,797 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,798 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,798 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,798 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,798 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,798 WARN L315 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,798 WARN L315 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,799 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,799 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,799 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,799 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,800 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,800 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,800 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,800 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,800 WARN L315 ript$VariableManager]: TermVariabe Thread2_P3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,801 WARN L315 ript$VariableManager]: TermVariabe Thread2_P3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,801 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P3_#t~nondet6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,801 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P3_#t~nondet6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,801 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,801 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,801 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P3_#t~nondet6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,801 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P3_#t~nondet6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:31,836 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:58:31,837 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:31,845 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:58:31,855 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:58:31,874 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:31,874 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:31,874 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:31,874 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:31,874 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:31,875 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:31,875 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:31,875 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:31,886 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 62 transitions [2019-10-22 08:58:33,022 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13134 states. [2019-10-22 08:58:33,024 INFO L276 IsEmpty]: Start isEmpty. Operand 13134 states. [2019-10-22 08:58:33,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 08:58:33,061 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:33,062 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:33,063 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:33,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:33,069 INFO L82 PathProgramCache]: Analyzing trace with hash 264651674, now seen corresponding path program 1 times [2019-10-22 08:58:33,076 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:33,077 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593341257] [2019-10-22 08:58:33,077 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:33,077 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:33,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:33,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:33,416 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593341257] [2019-10-22 08:58:33,416 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:33,417 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:58:33,417 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176795239] [2019-10-22 08:58:33,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:33,422 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:33,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:33,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:33,433 INFO L87 Difference]: Start difference. First operand 13134 states. Second operand 4 states. [2019-10-22 08:58:33,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:33,723 INFO L93 Difference]: Finished difference Result 13740 states and 55791 transitions. [2019-10-22 08:58:33,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:33,725 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-10-22 08:58:33,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:33,792 INFO L225 Difference]: With dead ends: 13740 [2019-10-22 08:58:33,796 INFO L226 Difference]: Without dead ends: 5627 [2019-10-22 08:58:33,798 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:33,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5627 states. [2019-10-22 08:58:34,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5627 to 5627. [2019-10-22 08:58:34,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5627 states. [2019-10-22 08:58:34,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5627 states to 5627 states and 22350 transitions. [2019-10-22 08:58:34,121 INFO L78 Accepts]: Start accepts. Automaton has 5627 states and 22350 transitions. Word has length 33 [2019-10-22 08:58:34,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:34,122 INFO L462 AbstractCegarLoop]: Abstraction has 5627 states and 22350 transitions. [2019-10-22 08:58:34,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:34,122 INFO L276 IsEmpty]: Start isEmpty. Operand 5627 states and 22350 transitions. [2019-10-22 08:58:34,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 08:58:34,130 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:34,130 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:34,132 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:34,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:34,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1689731992, now seen corresponding path program 1 times [2019-10-22 08:58:34,133 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:34,133 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934804872] [2019-10-22 08:58:34,133 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:34,133 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:34,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:34,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:34,284 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934804872] [2019-10-22 08:58:34,284 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:34,284 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:58:34,284 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328360057] [2019-10-22 08:58:34,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:58:34,286 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:34,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:34,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:34,286 INFO L87 Difference]: Start difference. First operand 5627 states and 22350 transitions. Second operand 5 states. [2019-10-22 08:58:34,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:34,535 INFO L93 Difference]: Finished difference Result 6139 states and 23830 transitions. [2019-10-22 08:58:34,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:58:34,536 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-22 08:58:34,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:34,570 INFO L225 Difference]: With dead ends: 6139 [2019-10-22 08:58:34,570 INFO L226 Difference]: Without dead ends: 5515 [2019-10-22 08:58:34,571 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:34,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5515 states. [2019-10-22 08:58:34,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5515 to 5515. [2019-10-22 08:58:34,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5515 states. [2019-10-22 08:58:34,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5515 states to 5515 states and 21818 transitions. [2019-10-22 08:58:34,742 INFO L78 Accepts]: Start accepts. Automaton has 5515 states and 21818 transitions. Word has length 34 [2019-10-22 08:58:34,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:34,742 INFO L462 AbstractCegarLoop]: Abstraction has 5515 states and 21818 transitions. [2019-10-22 08:58:34,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:58:34,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5515 states and 21818 transitions. [2019-10-22 08:58:34,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 08:58:34,749 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:34,749 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:34,749 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:34,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:34,749 INFO L82 PathProgramCache]: Analyzing trace with hash -135367944, now seen corresponding path program 1 times [2019-10-22 08:58:34,750 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:34,750 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734675872] [2019-10-22 08:58:34,750 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:34,750 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:34,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:34,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:34,866 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734675872] [2019-10-22 08:58:34,867 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:34,867 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:58:34,867 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722511737] [2019-10-22 08:58:34,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:58:34,867 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:34,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:34,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:34,868 INFO L87 Difference]: Start difference. First operand 5515 states and 21818 transitions. Second operand 6 states. [2019-10-22 08:58:35,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:35,012 INFO L93 Difference]: Finished difference Result 5451 states and 20826 transitions. [2019-10-22 08:58:35,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:58:35,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-10-22 08:58:35,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:35,051 INFO L225 Difference]: With dead ends: 5451 [2019-10-22 08:58:35,051 INFO L226 Difference]: Without dead ends: 4843 [2019-10-22 08:58:35,052 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:58:35,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4843 states. [2019-10-22 08:58:35,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4843 to 4843. [2019-10-22 08:58:35,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4843 states. [2019-10-22 08:58:35,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 18794 transitions. [2019-10-22 08:58:35,205 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 18794 transitions. Word has length 35 [2019-10-22 08:58:35,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:35,206 INFO L462 AbstractCegarLoop]: Abstraction has 4843 states and 18794 transitions. [2019-10-22 08:58:35,206 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:58:35,206 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 18794 transitions. [2019-10-22 08:58:35,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-22 08:58:35,213 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:35,213 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:35,214 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:35,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:35,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1222045992, now seen corresponding path program 1 times [2019-10-22 08:58:35,214 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:35,214 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197936924] [2019-10-22 08:58:35,214 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:35,215 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:35,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:35,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197936924] [2019-10-22 08:58:35,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:35,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:58:35,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513282075] [2019-10-22 08:58:35,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:58:35,348 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:35,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:58:35,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:35,348 INFO L87 Difference]: Start difference. First operand 4843 states and 18794 transitions. Second operand 7 states. [2019-10-22 08:58:35,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:35,502 INFO L93 Difference]: Finished difference Result 3563 states and 13034 transitions. [2019-10-22 08:58:35,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:58:35,503 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2019-10-22 08:58:35,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:35,514 INFO L225 Difference]: With dead ends: 3563 [2019-10-22 08:58:35,514 INFO L226 Difference]: Without dead ends: 3051 [2019-10-22 08:58:35,515 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:58:35,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2019-10-22 08:58:35,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 3051. [2019-10-22 08:58:35,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3051 states. [2019-10-22 08:58:35,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 11178 transitions. [2019-10-22 08:58:35,614 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 11178 transitions. Word has length 36 [2019-10-22 08:58:35,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:35,614 INFO L462 AbstractCegarLoop]: Abstraction has 3051 states and 11178 transitions. [2019-10-22 08:58:35,614 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:58:35,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 11178 transitions. [2019-10-22 08:58:35,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 08:58:35,620 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:35,620 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:35,620 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:35,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:35,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1705240570, now seen corresponding path program 1 times [2019-10-22 08:58:35,620 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:35,620 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460045784] [2019-10-22 08:58:35,621 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:35,621 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:35,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:35,794 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460045784] [2019-10-22 08:58:35,794 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:35,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:58:35,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513259430] [2019-10-22 08:58:35,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:35,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:35,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:35,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:35,796 INFO L87 Difference]: Start difference. First operand 3051 states and 11178 transitions. Second operand 8 states. [2019-10-22 08:58:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:36,163 INFO L93 Difference]: Finished difference Result 7115 states and 26202 transitions. [2019-10-22 08:58:36,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 08:58:36,165 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2019-10-22 08:58:36,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:36,184 INFO L225 Difference]: With dead ends: 7115 [2019-10-22 08:58:36,184 INFO L226 Difference]: Without dead ends: 3095 [2019-10-22 08:58:36,185 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-10-22 08:58:36,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2019-10-22 08:58:36,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 2711. [2019-10-22 08:58:36,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2711 states. [2019-10-22 08:58:36,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 10014 transitions. [2019-10-22 08:58:36,265 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 10014 transitions. Word has length 37 [2019-10-22 08:58:36,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:36,266 INFO L462 AbstractCegarLoop]: Abstraction has 2711 states and 10014 transitions. [2019-10-22 08:58:36,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:36,266 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 10014 transitions. [2019-10-22 08:58:36,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 08:58:36,269 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:36,269 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:36,269 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:36,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:36,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1508168928, now seen corresponding path program 2 times [2019-10-22 08:58:36,270 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:36,270 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617925395] [2019-10-22 08:58:36,270 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:36,270 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:36,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:36,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:36,412 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617925395] [2019-10-22 08:58:36,413 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:36,413 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:58:36,413 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98495057] [2019-10-22 08:58:36,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:36,413 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:36,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:36,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:36,414 INFO L87 Difference]: Start difference. First operand 2711 states and 10014 transitions. Second operand 8 states. [2019-10-22 08:58:36,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:36,696 INFO L93 Difference]: Finished difference Result 7527 states and 28342 transitions. [2019-10-22 08:58:36,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-22 08:58:36,697 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2019-10-22 08:58:36,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:36,705 INFO L225 Difference]: With dead ends: 7527 [2019-10-22 08:58:36,705 INFO L226 Difference]: Without dead ends: 2175 [2019-10-22 08:58:36,705 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2019-10-22 08:58:36,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2175 states. [2019-10-22 08:58:36,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2175 to 2175. [2019-10-22 08:58:36,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2175 states. [2019-10-22 08:58:36,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 8250 transitions. [2019-10-22 08:58:36,762 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 8250 transitions. Word has length 37 [2019-10-22 08:58:36,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:36,762 INFO L462 AbstractCegarLoop]: Abstraction has 2175 states and 8250 transitions. [2019-10-22 08:58:36,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:36,762 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 8250 transitions. [2019-10-22 08:58:36,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 08:58:36,765 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:36,765 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:36,765 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:36,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:36,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1640251676, now seen corresponding path program 3 times [2019-10-22 08:58:36,766 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:36,766 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835250580] [2019-10-22 08:58:36,766 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:36,766 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:36,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:36,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:36,878 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835250580] [2019-10-22 08:58:36,878 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:36,878 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:58:36,878 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662249287] [2019-10-22 08:58:36,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:58:36,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:36,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:58:36,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:36,879 INFO L87 Difference]: Start difference. First operand 2175 states and 8250 transitions. Second operand 7 states. [2019-10-22 08:58:36,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:36,973 INFO L93 Difference]: Finished difference Result 1663 states and 6202 transitions. [2019-10-22 08:58:36,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:58:36,973 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2019-10-22 08:58:36,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:36,974 INFO L225 Difference]: With dead ends: 1663 [2019-10-22 08:58:36,974 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:58:36,974 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:58:36,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:58:36,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:58:36,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:58:36,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:58:36,975 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2019-10-22 08:58:36,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:36,975 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:36,975 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:58:36,975 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:58:36,976 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:58:36,978 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:58:36,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:36 BasicIcfg [2019-10-22 08:58:36,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:36,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:36,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:36,981 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:36,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:31" (3/4) ... [2019-10-22 08:58:36,985 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:58:36,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:58:36,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:58:36,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 08:58:36,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-10-22 08:58:36,996 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-10-22 08:58:36,996 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:58:37,034 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3b518917-fc28-4708-8bbb-328a5b66b415/bin/uautomizer/witness.graphml [2019-10-22 08:58:37,034 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:37,037 INFO L168 Benchmark]: Toolchain (without parser) took 6205.49 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 221.2 MB). Free memory was 939.2 MB in the beginning and 943.4 MB in the end (delta: -4.3 MB). Peak memory consumption was 217.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:37,037 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:37,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -150.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:37,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:37,038 INFO L168 Benchmark]: Boogie Preprocessor took 25.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:37,038 INFO L168 Benchmark]: RCFGBuilder took 290.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:37,039 INFO L168 Benchmark]: TraceAbstraction took 5250.11 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 96.5 MB). Free memory was 1.1 GB in the beginning and 952.9 MB in the end (delta: 103.6 MB). Peak memory consumption was 200.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:37,039 INFO L168 Benchmark]: Witness Printer took 53.47 ms. Allocated memory is still 1.3 GB. Free memory was 952.9 MB in the beginning and 943.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:37,041 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 540.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -150.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 290.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5250.11 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 96.5 MB). Free memory was 1.1 GB in the beginning and 952.9 MB in the end (delta: 103.6 MB). Peak memory consumption was 200.1 MB. Max. memory is 11.5 GB. * Witness Printer took 53.47 ms. Allocated memory is still 1.3 GB. Free memory was 952.9 MB in the beginning and 943.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 86 locations, 1 error locations. Result: SAFE, OverallTime: 5.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 537 SDtfs, 950 SDslu, 1475 SDs, 0 SdLazy, 181 SolverSat, 93 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13134occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 384 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 249 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 242 ConstructedInterpolants, 0 QuantifiedInterpolants, 25854 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...