./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/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 90b22d2c530e50af1e0be1627f87711a60d58d61 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:18:00,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:18:00,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:18:00,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:18:00,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:18:00,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:18:00,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:18:00,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:18:00,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:18:00,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:18:00,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:18:00,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:18:00,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:18:00,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:18:00,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:18:00,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:18:00,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:18:00,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:18:00,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:18:00,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:18:00,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:18:00,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:18:00,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:18:00,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:18:00,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:18:00,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:18:00,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:18:00,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:18:00,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:18:00,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:18:00,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:18:00,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:18:00,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:18:00,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:18:00,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:18:00,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:18:00,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:18:00,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:18:00,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:18:00,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:18:00,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:18:00,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 12:18:00,740 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:18:00,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:18:00,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:18:00,741 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:18:00,741 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:18:00,742 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:18:00,742 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:18:00,742 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:18:00,742 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:18:00,742 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:18:00,742 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:18:00,742 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:18:00,743 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:18:00,743 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:18:00,743 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:18:00,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:18:00,744 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:18:00,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:18:00,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:18:00,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:18:00,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:18:00,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:18:00,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:18:00,745 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:18:00,745 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:18:00,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:18:00,745 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:18:00,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:18:00,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:18:00,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:18:00,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:18:00,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:18:00,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:18:00,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:18:00,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:18:00,747 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:18:00,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:18:00,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:18:00,748 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:18:00,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:18:00,748 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/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/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 -> 90b22d2c530e50af1e0be1627f87711a60d58d61 [2019-12-07 12:18:00,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:18:00,876 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:18:00,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:18:00,879 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:18:00,879 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:18:00,880 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc.i [2019-12-07 12:18:00,919 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/bin/utaipan/data/617e376f7/700e4c146f7e47a583038dd677ab8690/FLAG04a9c6c1a [2019-12-07 12:18:01,286 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:18:01,287 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/sv-benchmarks/c/pthread-wmm/safe018_pso.oepc.i [2019-12-07 12:18:01,296 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/bin/utaipan/data/617e376f7/700e4c146f7e47a583038dd677ab8690/FLAG04a9c6c1a [2019-12-07 12:18:01,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/bin/utaipan/data/617e376f7/700e4c146f7e47a583038dd677ab8690 [2019-12-07 12:18:01,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:18:01,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:18:01,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:18:01,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:18:01,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:18:01,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:18:01" (1/1) ... [2019-12-07 12:18:01,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c32313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:01, skipping insertion in model container [2019-12-07 12:18:01,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:18:01" (1/1) ... [2019-12-07 12:18:01,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:18:01,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:18:01,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:18:01,957 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:18:01,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:18:02,036 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:18:02,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:02 WrapperNode [2019-12-07 12:18:02,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:18:02,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:18:02,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:18:02,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:18:02,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:02" (1/1) ... [2019-12-07 12:18:02,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:02" (1/1) ... [2019-12-07 12:18:02,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:18:02,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:18:02,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:18:02,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:18:02,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:02" (1/1) ... [2019-12-07 12:18:02,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:02" (1/1) ... [2019-12-07 12:18:02,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:02" (1/1) ... [2019-12-07 12:18:02,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:02" (1/1) ... [2019-12-07 12:18:02,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:02" (1/1) ... [2019-12-07 12:18:02,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:02" (1/1) ... [2019-12-07 12:18:02,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:02" (1/1) ... [2019-12-07 12:18:02,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:18:02,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:18:02,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:18:02,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:18:02,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/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 [2019-12-07 12:18:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:18:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-07 12:18:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:18:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:18:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-07 12:18:02,132 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-07 12:18:02,132 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-07 12:18:02,132 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-07 12:18:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-07 12:18:02,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-07 12:18:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-07 12:18:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:18:02,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:18:02,134 WARN L205 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-07 12:18:02,299 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:18:02,299 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 12:18:02,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:18:02 BoogieIcfgContainer [2019-12-07 12:18:02,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:18:02,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:18:02,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:18:02,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:18:02,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:18:01" (1/3) ... [2019-12-07 12:18:02,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d3e3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:18:02, skipping insertion in model container [2019-12-07 12:18:02,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:02" (2/3) ... [2019-12-07 12:18:02,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d3e3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:18:02, skipping insertion in model container [2019-12-07 12:18:02,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:18:02" (3/3) ... [2019-12-07 12:18:02,304 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc.i [2019-12-07 12:18:02,310 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-07 12:18:02,310 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:18:02,314 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:18:02,314 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-07 12:18:02,331 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,332 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,332 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,332 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,332 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,332 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,332 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,333 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,333 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,333 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,333 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,333 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,333 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,333 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,333 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,334 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,334 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,334 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:18:02,348 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 12:18:02,360 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:18:02,361 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:18:02,361 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:18:02,361 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:18:02,361 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:18:02,361 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:18:02,361 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:18:02,361 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:18:02,369 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-07 12:18:02,371 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-07 12:18:02,396 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-07 12:18:02,396 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 12:18:02,400 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-07 12:18:02,402 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-07 12:18:02,411 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-07 12:18:02,411 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 12:18:02,412 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-07 12:18:02,413 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-07 12:18:02,414 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-07 12:18:03,199 INFO L206 etLargeBlockEncoding]: Checked pairs total: 482 [2019-12-07 12:18:03,199 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-07 12:18:03,201 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-07 12:18:03,208 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-07 12:18:03,210 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-07 12:18:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 12:18:03,214 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:18:03,215 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:18:03,215 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:18:03,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:18:03,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1824698528, now seen corresponding path program 1 times [2019-12-07 12:18:03,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:18:03,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065191321] [2019-12-07 12:18:03,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:18:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:18:03,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:18:03,388 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065191321] [2019-12-07 12:18:03,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:18:03,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 12:18:03,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610014412] [2019-12-07 12:18:03,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:18:03,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:18:03,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:18:03,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:18:03,410 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-07 12:18:03,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:18:03,433 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2019-12-07 12:18:03,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:18:03,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 12:18:03,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:18:03,445 INFO L225 Difference]: With dead ends: 50 [2019-12-07 12:18:03,445 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 12:18:03,446 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:18:03,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 12:18:03,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 12:18:03,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 12:18:03,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-07 12:18:03,474 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-07 12:18:03,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:18:03,475 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-07 12:18:03,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:18:03,475 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-07 12:18:03,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 12:18:03,476 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:18:03,476 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:18:03,476 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:18:03,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:18:03,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1592223242, now seen corresponding path program 1 times [2019-12-07 12:18:03,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:18:03,476 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258515020] [2019-12-07 12:18:03,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:18:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:18:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:18:03,540 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258515020] [2019-12-07 12:18:03,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:18:03,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:18:03,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595871964] [2019-12-07 12:18:03,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:18:03,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:18:03,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:18:03,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:18:03,542 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 4 states. [2019-12-07 12:18:03,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:18:03,569 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-07 12:18:03,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:18:03,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-07 12:18:03,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:18:03,570 INFO L225 Difference]: With dead ends: 34 [2019-12-07 12:18:03,570 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 12:18:03,571 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:18:03,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 12:18:03,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-07 12:18:03,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 12:18:03,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-07 12:18:03,575 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-07 12:18:03,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:18:03,575 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-07 12:18:03,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:18:03,575 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-07 12:18:03,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 12:18:03,575 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:18:03,575 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:18:03,576 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:18:03,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:18:03,576 INFO L82 PathProgramCache]: Analyzing trace with hash -731020953, now seen corresponding path program 1 times [2019-12-07 12:18:03,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:18:03,576 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415407849] [2019-12-07 12:18:03,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:18:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:18:03,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:18:03,621 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415407849] [2019-12-07 12:18:03,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:18:03,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:18:03,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525900729] [2019-12-07 12:18:03,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:18:03,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:18:03,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:18:03,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:18:03,622 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-07 12:18:03,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:18:03,630 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-07 12:18:03,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:18:03,630 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-07 12:18:03,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:18:03,631 INFO L225 Difference]: With dead ends: 32 [2019-12-07 12:18:03,631 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 12:18:03,631 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:18:03,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 12:18:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-07 12:18:03,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 12:18:03,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-07 12:18:03,635 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 9 [2019-12-07 12:18:03,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:18:03,635 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-07 12:18:03,635 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:18:03,635 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-07 12:18:03,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 12:18:03,635 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:18:03,636 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:18:03,636 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:18:03,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:18:03,636 INFO L82 PathProgramCache]: Analyzing trace with hash 2114338813, now seen corresponding path program 1 times [2019-12-07 12:18:03,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:18:03,636 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302546286] [2019-12-07 12:18:03,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:18:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:18:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:18:03,683 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302546286] [2019-12-07 12:18:03,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:18:03,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:18:03,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221642364] [2019-12-07 12:18:03,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:18:03,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:18:03,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:18:03,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:18:03,685 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 4 states. [2019-12-07 12:18:03,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:18:03,703 INFO L93 Difference]: Finished difference Result 38 states and 66 transitions. [2019-12-07 12:18:03,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:18:03,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-07 12:18:03,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:18:03,704 INFO L225 Difference]: With dead ends: 38 [2019-12-07 12:18:03,704 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 12:18:03,704 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:18:03,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 12:18:03,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2019-12-07 12:18:03,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 12:18:03,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 57 transitions. [2019-12-07 12:18:03,707 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 57 transitions. Word has length 10 [2019-12-07 12:18:03,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:18:03,708 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 57 transitions. [2019-12-07 12:18:03,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:18:03,708 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 57 transitions. [2019-12-07 12:18:03,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 12:18:03,708 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:18:03,708 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:18:03,708 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:18:03,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:18:03,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1186765067, now seen corresponding path program 2 times [2019-12-07 12:18:03,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:18:03,709 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677547747] [2019-12-07 12:18:03,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:18:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:18:03,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:18:03,755 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677547747] [2019-12-07 12:18:03,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:18:03,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:18:03,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560997345] [2019-12-07 12:18:03,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:18:03,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:18:03,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:18:03,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:18:03,756 INFO L87 Difference]: Start difference. First operand 32 states and 57 transitions. Second operand 5 states. [2019-12-07 12:18:03,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:18:03,773 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2019-12-07 12:18:03,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:18:03,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-07 12:18:03,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:18:03,774 INFO L225 Difference]: With dead ends: 35 [2019-12-07 12:18:03,774 INFO L226 Difference]: Without dead ends: 27 [2019-12-07 12:18:03,774 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:18:03,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-07 12:18:03,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 12:18:03,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 12:18:03,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-07 12:18:03,777 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-07 12:18:03,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:18:03,777 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-07 12:18:03,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:18:03,777 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-07 12:18:03,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 12:18:03,777 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:18:03,777 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:18:03,778 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:18:03,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:18:03,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1005356980, now seen corresponding path program 1 times [2019-12-07 12:18:03,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:18:03,778 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428611031] [2019-12-07 12:18:03,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:18:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:18:03,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:18:03,811 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428611031] [2019-12-07 12:18:03,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:18:03,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:18:03,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132960769] [2019-12-07 12:18:03,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:18:03,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:18:03,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:18:03,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:18:03,812 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-07 12:18:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:18:03,825 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-07 12:18:03,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:18:03,826 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 12:18:03,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:18:03,826 INFO L225 Difference]: With dead ends: 29 [2019-12-07 12:18:03,826 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 12:18:03,826 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:18:03,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 12:18:03,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 12:18:03,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 12:18:03,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-07 12:18:03,828 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-07 12:18:03,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:18:03,828 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-07 12:18:03,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:18:03,829 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-07 12:18:03,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 12:18:03,829 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:18:03,829 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:18:03,829 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:18:03,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:18:03,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1690191566, now seen corresponding path program 2 times [2019-12-07 12:18:03,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:18:03,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655612506] [2019-12-07 12:18:03,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:18:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:18:03,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:18:03,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655612506] [2019-12-07 12:18:03,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:18:03,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:18:03,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913242502] [2019-12-07 12:18:03,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:18:03,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:18:03,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:18:03,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:18:03,869 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-07 12:18:03,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:18:03,883 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-07 12:18:03,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:18:03,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 12:18:03,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:18:03,884 INFO L225 Difference]: With dead ends: 16 [2019-12-07 12:18:03,884 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 12:18:03,884 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:18:03,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 12:18:03,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 12:18:03,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 12:18:03,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 12:18:03,884 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-07 12:18:03,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:18:03,885 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:18:03,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:18:03,885 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:18:03,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 12:18:03,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:18:03 BasicIcfg [2019-12-07 12:18:03,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:18:03,888 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:18:03,888 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:18:03,888 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:18:03,888 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:18:02" (3/4) ... [2019-12-07 12:18:03,890 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 12:18:03,894 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-12-07 12:18:03,894 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-12-07 12:18:03,895 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-12-07 12:18:03,898 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-12-07 12:18:03,898 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 12:18:03,898 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 12:18:03,926 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f6722bf0-2007-40c4-86b0-42e49d8e6ffa/bin/utaipan/witness.graphml [2019-12-07 12:18:03,926 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:18:03,927 INFO L168 Benchmark]: Toolchain (without parser) took 2240.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -82.1 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:18:03,928 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:18:03,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -130.0 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:18:03,928 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:18:03,928 INFO L168 Benchmark]: Boogie Preprocessor took 17.56 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:18:03,929 INFO L168 Benchmark]: RCFGBuilder took 214.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:18:03,929 INFO L168 Benchmark]: TraceAbstraction took 1587.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:18:03,929 INFO L168 Benchmark]: Witness Printer took 38.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:18:03,931 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 349.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -130.0 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.56 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 214.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1587.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * Witness Printer took 38.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.8s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 243 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 17 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 482 CheckedPairsTotal, 45 TotalNumberOfCompositions - 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 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 1.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 60 SDslu, 51 SDs, 0 SdLazy, 42 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 3227 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...