./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe030_tso.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_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1dad76de384458f25b2ba82474cd10153abda59e .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:22:35,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:35,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:35,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:35,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:35,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:35,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:35,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:35,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:35,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:35,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:35,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:35,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:35,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:35,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:35,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:35,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:35,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:35,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:35,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:35,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:35,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:35,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:35,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:35,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:35,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:35,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:35,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:35,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:35,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:35,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:35,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:35,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:35,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:35,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:35,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:35,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:35,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:35,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:35,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:35,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:35,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:22:35,956 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:35,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:35,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:35,957 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:35,957 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:35,957 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:35,957 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:35,958 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:35,958 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:35,958 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:35,958 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:35,958 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:35,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:35,959 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:35,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:35,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:35,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:35,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:35,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:35,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:35,961 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:35,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:35,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:35,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:35,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:35,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:35,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:35,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:35,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:35,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:35,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:35,963 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:35,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:35,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:35,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:35,964 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/bin/utaipan 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 -> Taipan 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 -> 1dad76de384458f25b2ba82474cd10153abda59e [2019-10-22 11:22:35,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:36,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:36,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:36,008 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:36,009 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:36,009 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i [2019-10-22 11:22:36,063 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/bin/utaipan/data/3480a466d/f11f651eea0c434cb734e3db135f4506/FLAGf00f08d33 [2019-10-22 11:22:36,565 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:36,566 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i [2019-10-22 11:22:36,579 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/bin/utaipan/data/3480a466d/f11f651eea0c434cb734e3db135f4506/FLAGf00f08d33 [2019-10-22 11:22:37,079 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/bin/utaipan/data/3480a466d/f11f651eea0c434cb734e3db135f4506 [2019-10-22 11:22:37,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:37,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:37,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:37,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:37,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:37,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:37" (1/1) ... [2019-10-22 11:22:37,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cafd39d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:37, skipping insertion in model container [2019-10-22 11:22:37,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:37" (1/1) ... [2019-10-22 11:22:37,102 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:37,146 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:37,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:37,661 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:37,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:37,803 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:37,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:37 WrapperNode [2019-10-22 11:22:37,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:37,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:37,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:37,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:37,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:37" (1/1) ... [2019-10-22 11:22:37,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:37" (1/1) ... [2019-10-22 11:22:37,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:37,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:37,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:37,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:37,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:37" (1/1) ... [2019-10-22 11:22:37,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:37" (1/1) ... [2019-10-22 11:22:37,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:37" (1/1) ... [2019-10-22 11:22:37,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:37" (1/1) ... [2019-10-22 11:22:37,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:37" (1/1) ... [2019-10-22 11:22:37,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:37" (1/1) ... [2019-10-22 11:22:37,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:37" (1/1) ... [2019-10-22 11:22:37,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:37,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:37,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:37,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:37,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/bin/utaipan/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 11:22:37,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:22:37,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 11:22:37,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:37,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:22:37,946 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 11:22:37,946 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 11:22:37,947 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 11:22:37,947 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 11:22:37,947 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 11:22:37,947 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 11:22:37,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 11:22:37,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:37,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:37,950 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 11:22:38,308 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:38,315 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 11:22:38,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:38 BoogieIcfgContainer [2019-10-22 11:22:38,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:38,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:38,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:38,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:38,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:37" (1/3) ... [2019-10-22 11:22:38,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9a6c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:38, skipping insertion in model container [2019-10-22 11:22:38,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:37" (2/3) ... [2019-10-22 11:22:38,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9a6c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:38, skipping insertion in model container [2019-10-22 11:22:38,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:38" (3/3) ... [2019-10-22 11:22:38,327 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2019-10-22 11:22:38,378 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,378 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,379 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,379 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,379 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,379 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,380 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,380 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,380 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,380 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,381 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,381 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,381 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,382 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,382 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,382 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,382 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,382 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,383 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,383 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,383 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,384 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,384 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,384 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,384 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,385 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,385 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,385 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,385 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,385 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:38,405 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 11:22:38,405 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:38,420 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:22:38,432 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:22:38,455 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:38,455 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:38,455 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:38,455 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:38,456 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:38,456 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:38,456 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:38,456 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:38,469 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 51 transitions [2019-10-22 11:22:38,657 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2383 states. [2019-10-22 11:22:38,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states. [2019-10-22 11:22:38,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:22:38,677 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:38,678 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] [2019-10-22 11:22:38,680 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:38,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:38,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1436525340, now seen corresponding path program 1 times [2019-10-22 11:22:38,698 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:38,698 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381564065] [2019-10-22 11:22:38,698 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:38,699 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:38,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:39,067 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 11:22:39,071 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381564065] [2019-10-22 11:22:39,073 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:39,074 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:39,074 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132846874] [2019-10-22 11:22:39,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:39,079 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:39,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:39,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:39,093 INFO L87 Difference]: Start difference. First operand 2383 states. Second operand 4 states. [2019-10-22 11:22:39,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:39,229 INFO L93 Difference]: Finished difference Result 2491 states and 8067 transitions. [2019-10-22 11:22:39,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:22:39,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-10-22 11:22:39,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:39,269 INFO L225 Difference]: With dead ends: 2491 [2019-10-22 11:22:39,269 INFO L226 Difference]: Without dead ends: 1126 [2019-10-22 11:22:39,271 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 11:22:39,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2019-10-22 11:22:39,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2019-10-22 11:22:39,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2019-10-22 11:22:39,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 3556 transitions. [2019-10-22 11:22:39,435 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 3556 transitions. Word has length 28 [2019-10-22 11:22:39,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:39,435 INFO L462 AbstractCegarLoop]: Abstraction has 1126 states and 3556 transitions. [2019-10-22 11:22:39,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:39,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 3556 transitions. [2019-10-22 11:22:39,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 11:22:39,444 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:39,444 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] [2019-10-22 11:22:39,445 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:39,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:39,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1185426072, now seen corresponding path program 1 times [2019-10-22 11:22:39,445 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:39,445 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753129252] [2019-10-22 11:22:39,446 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:39,446 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:39,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:39,637 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 11:22:39,637 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753129252] [2019-10-22 11:22:39,637 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:39,638 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:22:39,638 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553138964] [2019-10-22 11:22:39,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:39,640 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:39,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:39,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:39,641 INFO L87 Difference]: Start difference. First operand 1126 states and 3556 transitions. Second operand 5 states. [2019-10-22 11:22:39,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:39,713 INFO L93 Difference]: Finished difference Result 1166 states and 3550 transitions. [2019-10-22 11:22:39,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:39,714 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-22 11:22:39,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:39,720 INFO L225 Difference]: With dead ends: 1166 [2019-10-22 11:22:39,720 INFO L226 Difference]: Without dead ends: 1042 [2019-10-22 11:22:39,721 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 11:22:39,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2019-10-22 11:22:39,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2019-10-22 11:22:39,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2019-10-22 11:22:39,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 3241 transitions. [2019-10-22 11:22:39,760 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 3241 transitions. Word has length 29 [2019-10-22 11:22:39,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:39,761 INFO L462 AbstractCegarLoop]: Abstraction has 1042 states and 3241 transitions. [2019-10-22 11:22:39,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:39,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 3241 transitions. [2019-10-22 11:22:39,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:22:39,764 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:39,764 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] [2019-10-22 11:22:39,764 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:39,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:39,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1354593798, now seen corresponding path program 1 times [2019-10-22 11:22:39,765 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:39,765 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859468779] [2019-10-22 11:22:39,766 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:39,766 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:39,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:39,907 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 11:22:39,908 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859468779] [2019-10-22 11:22:39,908 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:39,908 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:22:39,908 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297252859] [2019-10-22 11:22:39,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:22:39,911 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:39,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:22:39,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:39,912 INFO L87 Difference]: Start difference. First operand 1042 states and 3241 transitions. Second operand 6 states. [2019-10-22 11:22:40,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:40,039 INFO L93 Difference]: Finished difference Result 818 states and 2377 transitions. [2019-10-22 11:22:40,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:22:40,040 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-10-22 11:22:40,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:40,045 INFO L225 Difference]: With dead ends: 818 [2019-10-22 11:22:40,045 INFO L226 Difference]: Without dead ends: 706 [2019-10-22 11:22:40,046 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:22:40,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2019-10-22 11:22:40,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2019-10-22 11:22:40,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2019-10-22 11:22:40,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2065 transitions. [2019-10-22 11:22:40,074 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2065 transitions. Word has length 30 [2019-10-22 11:22:40,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:40,075 INFO L462 AbstractCegarLoop]: Abstraction has 706 states and 2065 transitions. [2019-10-22 11:22:40,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:22:40,076 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2065 transitions. [2019-10-22 11:22:40,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:22:40,078 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:40,078 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] [2019-10-22 11:22:40,078 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:40,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:40,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1357106860, now seen corresponding path program 1 times [2019-10-22 11:22:40,079 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:40,079 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753885088] [2019-10-22 11:22:40,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:40,082 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:40,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:40,205 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 11:22:40,205 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753885088] [2019-10-22 11:22:40,205 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:40,205 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:22:40,206 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872592570] [2019-10-22 11:22:40,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:22:40,206 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:40,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:22:40,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:40,207 INFO L87 Difference]: Start difference. First operand 706 states and 2065 transitions. Second operand 6 states. [2019-10-22 11:22:40,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:40,306 INFO L93 Difference]: Finished difference Result 1106 states and 3289 transitions. [2019-10-22 11:22:40,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:40,307 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 11:22:40,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:40,311 INFO L225 Difference]: With dead ends: 1106 [2019-10-22 11:22:40,312 INFO L226 Difference]: Without dead ends: 590 [2019-10-22 11:22:40,312 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:22:40,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2019-10-22 11:22:40,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 590. [2019-10-22 11:22:40,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2019-10-22 11:22:40,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 1753 transitions. [2019-10-22 11:22:40,336 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 1753 transitions. Word has length 31 [2019-10-22 11:22:40,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:40,337 INFO L462 AbstractCegarLoop]: Abstraction has 590 states and 1753 transitions. [2019-10-22 11:22:40,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:22:40,337 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 1753 transitions. [2019-10-22 11:22:40,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:22:40,338 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:40,339 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] [2019-10-22 11:22:40,339 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:40,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:40,340 INFO L82 PathProgramCache]: Analyzing trace with hash 478598006, now seen corresponding path program 2 times [2019-10-22 11:22:40,340 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:40,340 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971436411] [2019-10-22 11:22:40,341 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:40,341 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:40,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:40,433 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 11:22:40,433 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971436411] [2019-10-22 11:22:40,433 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:40,433 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:22:40,434 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137500778] [2019-10-22 11:22:40,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:22:40,434 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:40,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:22:40,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:40,435 INFO L87 Difference]: Start difference. First operand 590 states and 1753 transitions. Second operand 6 states. [2019-10-22 11:22:40,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:40,526 INFO L93 Difference]: Finished difference Result 974 states and 2937 transitions. [2019-10-22 11:22:40,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:40,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 11:22:40,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:40,530 INFO L225 Difference]: With dead ends: 974 [2019-10-22 11:22:40,530 INFO L226 Difference]: Without dead ends: 554 [2019-10-22 11:22:40,530 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:22:40,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2019-10-22 11:22:40,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2019-10-22 11:22:40,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2019-10-22 11:22:40,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1669 transitions. [2019-10-22 11:22:40,548 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1669 transitions. Word has length 31 [2019-10-22 11:22:40,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:40,549 INFO L462 AbstractCegarLoop]: Abstraction has 554 states and 1669 transitions. [2019-10-22 11:22:40,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:22:40,549 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1669 transitions. [2019-10-22 11:22:40,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:22:40,550 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:40,550 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] [2019-10-22 11:22:40,550 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:40,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:40,551 INFO L82 PathProgramCache]: Analyzing trace with hash 331948478, now seen corresponding path program 3 times [2019-10-22 11:22:40,551 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:40,551 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560868392] [2019-10-22 11:22:40,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:40,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:40,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:40,632 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 11:22:40,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560868392] [2019-10-22 11:22:40,633 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:40,633 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:22:40,633 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666946015] [2019-10-22 11:22:40,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:22:40,634 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:40,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:22:40,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:40,635 INFO L87 Difference]: Start difference. First operand 554 states and 1669 transitions. Second operand 6 states. [2019-10-22 11:22:40,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:40,714 INFO L93 Difference]: Finished difference Result 426 states and 1253 transitions. [2019-10-22 11:22:40,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:40,714 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 11:22:40,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:40,715 INFO L225 Difference]: With dead ends: 426 [2019-10-22 11:22:40,715 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:22:40,716 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:22:40,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:22:40,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:22:40,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:22:40,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:22:40,717 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-10-22 11:22:40,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:40,717 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:22:40,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:22:40,718 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:22:40,718 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:22:40,722 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 11:22:40,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:40 BasicIcfg [2019-10-22 11:22:40,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:40,725 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:40,725 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:40,726 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:40,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:38" (3/4) ... [2019-10-22 11:22:40,730 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:22:40,738 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 11:22:40,740 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 11:22:40,741 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 11:22:40,745 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 11:22:40,747 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:22:40,800 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5046c3d2-eaa3-4ea2-9d2d-23788b5c1356/bin/utaipan/witness.graphml [2019-10-22 11:22:40,801 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:40,803 INFO L168 Benchmark]: Toolchain (without parser) took 3718.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 944.5 MB in the beginning and 884.0 MB in the end (delta: 60.6 MB). Peak memory consumption was 247.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:40,804 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:40,805 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -213.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:40,805 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:40,805 INFO L168 Benchmark]: Boogie Preprocessor took 30.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:40,811 INFO L168 Benchmark]: RCFGBuilder took 432.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:40,811 INFO L168 Benchmark]: TraceAbstraction took 2406.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 884.0 MB in the end (delta: 240.1 MB). Peak memory consumption was 240.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:40,812 INFO L168 Benchmark]: Witness Printer took 75.70 ms. Allocated memory is still 1.2 GB. Free memory is still 884.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:40,814 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 718.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -213.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 432.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2406.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 884.0 MB in the end (delta: 240.1 MB). Peak memory consumption was 240.1 MB. Max. memory is 11.5 GB. * Witness Printer took 75.70 ms. Allocated memory is still 1.2 GB. Free memory is still 884.0 MB. There was no memory consumed. 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 7 procedures, 69 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 329 SDtfs, 349 SDslu, 773 SDs, 0 SdLazy, 88 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2383occurred 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: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 12498 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...