./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe009_pso.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe009_pso.opt_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/bin-2019/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 8bd9ca18245af8e5328828c1ee802038d2a3464c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 22:44:15,836 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 22:44:15,837 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 22:44:15,846 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 22:44:15,846 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 22:44:15,847 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 22:44:15,848 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 22:44:15,849 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 22:44:15,850 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 22:44:15,851 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 22:44:15,851 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 22:44:15,852 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 22:44:15,853 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 22:44:15,853 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 22:44:15,854 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 22:44:15,855 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 22:44:15,855 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 22:44:15,856 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 22:44:15,858 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 22:44:15,860 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 22:44:15,860 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 22:44:15,861 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 22:44:15,863 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 22:44:15,863 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 22:44:15,863 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 22:44:15,864 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 22:44:15,865 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 22:44:15,866 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 22:44:15,866 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 22:44:15,867 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 22:44:15,867 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 22:44:15,868 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 22:44:15,868 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 22:44:15,868 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 22:44:15,870 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 22:44:15,870 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 22:44:15,870 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-22 22:44:15,881 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 22:44:15,881 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 22:44:15,882 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 22:44:15,882 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 22:44:15,883 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 22:44:15,883 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 22:44:15,883 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 22:44:15,883 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 22:44:15,883 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 22:44:15,883 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 22:44:15,884 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 22:44:15,884 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 22:44:15,884 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 22:44:15,884 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 22:44:15,885 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 22:44:15,885 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 22:44:15,885 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 22:44:15,885 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 22:44:15,885 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 22:44:15,885 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 22:44:15,886 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 22:44:15,886 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 22:44:15,886 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 22:44:15,886 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 22:44:15,886 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 22:44:15,886 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 22:44:15,887 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 22:44:15,887 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 22:44:15,887 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 22:44:15,887 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 22:44:15,887 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 22:44:15,887 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 22:44:15,888 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 22:44:15,888 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 22:44:15,888 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 22:44:15,888 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 22:44:15,888 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 22:44:15,888 INFO L133 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_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/bin-2019/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 -> 8bd9ca18245af8e5328828c1ee802038d2a3464c [2018-11-22 22:44:15,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 22:44:15,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 22:44:15,928 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 22:44:15,929 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 22:44:15,929 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 22:44:15,930 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe009_pso.opt_true-unreach-call.i [2018-11-22 22:44:15,979 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/bin-2019/utaipan/data/bbaa38847/f334d67db9a8451a9fb9702bca013080/FLAG581dfeeb5 [2018-11-22 22:44:16,346 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 22:44:16,347 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/sv-benchmarks/c/pthread-wmm/safe009_pso.opt_true-unreach-call.i [2018-11-22 22:44:16,359 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/bin-2019/utaipan/data/bbaa38847/f334d67db9a8451a9fb9702bca013080/FLAG581dfeeb5 [2018-11-22 22:44:16,737 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/bin-2019/utaipan/data/bbaa38847/f334d67db9a8451a9fb9702bca013080 [2018-11-22 22:44:16,739 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 22:44:16,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 22:44:16,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 22:44:16,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 22:44:16,743 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 22:44:16,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:44:16" (1/1) ... [2018-11-22 22:44:16,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a4561b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:44:16, skipping insertion in model container [2018-11-22 22:44:16,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:44:16" (1/1) ... [2018-11-22 22:44:16,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 22:44:16,778 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 22:44:16,986 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:44:16,993 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 22:44:17,076 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:44:17,113 INFO L195 MainTranslator]: Completed translation [2018-11-22 22:44:17,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:44:17 WrapperNode [2018-11-22 22:44:17,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 22:44:17,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 22:44:17,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 22:44:17,114 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 22:44:17,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:44:17" (1/1) ... [2018-11-22 22:44:17,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:44:17" (1/1) ... [2018-11-22 22:44:17,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 22:44:17,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 22:44:17,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 22:44:17,147 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 22:44:17,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:44:17" (1/1) ... [2018-11-22 22:44:17,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:44:17" (1/1) ... [2018-11-22 22:44:17,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:44:17" (1/1) ... [2018-11-22 22:44:17,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:44:17" (1/1) ... [2018-11-22 22:44:17,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:44:17" (1/1) ... [2018-11-22 22:44:17,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:44:17" (1/1) ... [2018-11-22 22:44:17,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:44:17" (1/1) ... [2018-11-22 22:44:17,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 22:44:17,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 22:44:17,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 22:44:17,167 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 22:44:17,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:44:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/bin-2019/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 [2018-11-22 22:44:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 22:44:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-22 22:44:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-22 22:44:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-22 22:44:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-22 22:44:17,233 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-22 22:44:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-22 22:44:17,234 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-22 22:44:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-22 22:44:17,234 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-22 22:44:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-22 22:44:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 22:44:17,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 22:44:17,235 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-22 22:44:17,441 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 22:44:17,441 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-22 22:44:17,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:44:17 BoogieIcfgContainer [2018-11-22 22:44:17,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 22:44:17,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 22:44:17,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 22:44:17,445 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 22:44:17,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:44:16" (1/3) ... [2018-11-22 22:44:17,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65488751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:44:17, skipping insertion in model container [2018-11-22 22:44:17,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:44:17" (2/3) ... [2018-11-22 22:44:17,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65488751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:44:17, skipping insertion in model container [2018-11-22 22:44:17,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:44:17" (3/3) ... [2018-11-22 22:44:17,448 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_pso.opt_true-unreach-call.i [2018-11-22 22:44:17,474 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,474 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,475 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,475 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,475 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,475 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,475 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,475 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,476 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,476 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,476 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,476 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,476 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,476 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,477 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,477 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,477 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,479 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,480 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,480 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,480 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,480 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,480 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,480 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,481 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,481 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,481 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,481 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,481 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,482 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:44:17,494 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-22 22:44:17,495 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 22:44:17,502 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 22:44:17,513 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 22:44:17,537 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 22:44:17,537 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 22:44:17,537 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 22:44:17,537 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 22:44:17,537 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 22:44:17,537 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 22:44:17,537 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 22:44:17,538 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 22:44:17,546 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55places, 52 transitions [2018-11-22 22:44:17,636 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2018-11-22 22:44:17,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2018-11-22 22:44:17,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-22 22:44:17,650 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:44:17,651 INFO L402 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] [2018-11-22 22:44:17,653 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:44:17,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:44:17,658 INFO L82 PathProgramCache]: Analyzing trace with hash 100325607, now seen corresponding path program 1 times [2018-11-22 22:44:17,660 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:44:17,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:44:17,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:44:17,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:44:17,699 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:44:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:44:17,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:44:17,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:44:17,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 22:44:17,828 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:44:17,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 22:44:17,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 22:44:17,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 22:44:17,842 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2018-11-22 22:44:17,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:44:17,929 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2018-11-22 22:44:17,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-22 22:44:17,931 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-11-22 22:44:17,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:44:17,953 INFO L225 Difference]: With dead ends: 2492 [2018-11-22 22:44:17,953 INFO L226 Difference]: Without dead ends: 1127 [2018-11-22 22:44:17,955 INFO L631 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 [2018-11-22 22:44:17,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2018-11-22 22:44:18,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2018-11-22 22:44:18,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2018-11-22 22:44:18,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2018-11-22 22:44:18,035 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2018-11-22 22:44:18,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:44:18,035 INFO L480 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2018-11-22 22:44:18,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 22:44:18,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2018-11-22 22:44:18,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-22 22:44:18,038 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:44:18,038 INFO L402 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] [2018-11-22 22:44:18,038 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:44:18,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:44:18,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1012637439, now seen corresponding path program 1 times [2018-11-22 22:44:18,039 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:44:18,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:44:18,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:44:18,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:44:18,044 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:44:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:44:18,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:44:18,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:44:18,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-22 22:44:18,118 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:44:18,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-22 22:44:18,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-22 22:44:18,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-22 22:44:18,120 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2018-11-22 22:44:18,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:44:18,187 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2018-11-22 22:44:18,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 22:44:18,188 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-11-22 22:44:18,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:44:18,191 INFO L225 Difference]: With dead ends: 1167 [2018-11-22 22:44:18,191 INFO L226 Difference]: Without dead ends: 1043 [2018-11-22 22:44:18,192 INFO L631 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 [2018-11-22 22:44:18,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2018-11-22 22:44:18,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2018-11-22 22:44:18,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-11-22 22:44:18,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2018-11-22 22:44:18,210 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2018-11-22 22:44:18,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:44:18,211 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2018-11-22 22:44:18,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-22 22:44:18,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2018-11-22 22:44:18,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-22 22:44:18,212 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:44:18,213 INFO L402 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] [2018-11-22 22:44:18,213 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:44:18,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:44:18,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1278569811, now seen corresponding path program 1 times [2018-11-22 22:44:18,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:44:18,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:44:18,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:44:18,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:44:18,218 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:44:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:44:18,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:44:18,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:44:18,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 22:44:18,320 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:44:18,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 22:44:18,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 22:44:18,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-22 22:44:18,321 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2018-11-22 22:44:18,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:44:18,377 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2018-11-22 22:44:18,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 22:44:18,378 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-22 22:44:18,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:44:18,382 INFO L225 Difference]: With dead ends: 819 [2018-11-22 22:44:18,382 INFO L226 Difference]: Without dead ends: 707 [2018-11-22 22:44:18,382 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-22 22:44:18,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-11-22 22:44:18,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2018-11-22 22:44:18,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2018-11-22 22:44:18,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2018-11-22 22:44:18,405 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2018-11-22 22:44:18,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:44:18,406 INFO L480 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2018-11-22 22:44:18,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 22:44:18,406 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2018-11-22 22:44:18,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-22 22:44:18,407 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:44:18,408 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 22:44:18,408 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:44:18,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:44:18,408 INFO L82 PathProgramCache]: Analyzing trace with hash 731663071, now seen corresponding path program 1 times [2018-11-22 22:44:18,408 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:44:18,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:44:18,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:44:18,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:44:18,411 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:44:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:44:18,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:44:18,515 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:44:18,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-22 22:44:18,521 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:44:18,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-22 22:44:18,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 22:44:18,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-22 22:44:18,522 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 7 states. [2018-11-22 22:44:18,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:44:18,591 INFO L93 Difference]: Finished difference Result 1187 states and 3490 transitions. [2018-11-22 22:44:18,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 22:44:18,592 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-11-22 22:44:18,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:44:18,593 INFO L225 Difference]: With dead ends: 1187 [2018-11-22 22:44:18,594 INFO L226 Difference]: Without dead ends: 671 [2018-11-22 22:44:18,594 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-22 22:44:18,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2018-11-22 22:44:18,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 671. [2018-11-22 22:44:18,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2018-11-22 22:44:18,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1974 transitions. [2018-11-22 22:44:18,605 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1974 transitions. Word has length 32 [2018-11-22 22:44:18,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:44:18,605 INFO L480 AbstractCegarLoop]: Abstraction has 671 states and 1974 transitions. [2018-11-22 22:44:18,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-22 22:44:18,606 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1974 transitions. [2018-11-22 22:44:18,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-22 22:44:18,607 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:44:18,607 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 22:44:18,607 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:44:18,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:44:18,607 INFO L82 PathProgramCache]: Analyzing trace with hash -360491193, now seen corresponding path program 2 times [2018-11-22 22:44:18,607 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:44:18,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:44:18,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:44:18,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:44:18,610 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:44:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:44:18,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:44:18,755 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:44:18,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-22 22:44:18,755 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:44:18,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-22 22:44:18,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-22 22:44:18,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-22 22:44:18,756 INFO L87 Difference]: Start difference. First operand 671 states and 1974 transitions. Second operand 8 states. [2018-11-22 22:44:18,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:44:18,941 INFO L93 Difference]: Finished difference Result 1055 states and 3158 transitions. [2018-11-22 22:44:18,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 22:44:18,942 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-11-22 22:44:18,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:44:18,944 INFO L225 Difference]: With dead ends: 1055 [2018-11-22 22:44:18,944 INFO L226 Difference]: Without dead ends: 555 [2018-11-22 22:44:18,944 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-22 22:44:18,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2018-11-22 22:44:18,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2018-11-22 22:44:18,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2018-11-22 22:44:18,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1670 transitions. [2018-11-22 22:44:18,970 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 1670 transitions. Word has length 32 [2018-11-22 22:44:18,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:44:18,970 INFO L480 AbstractCegarLoop]: Abstraction has 555 states and 1670 transitions. [2018-11-22 22:44:18,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-22 22:44:18,971 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 1670 transitions. [2018-11-22 22:44:18,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-22 22:44:18,971 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:44:18,972 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 22:44:18,972 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:44:18,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:44:18,972 INFO L82 PathProgramCache]: Analyzing trace with hash -40855097, now seen corresponding path program 3 times [2018-11-22 22:44:18,972 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:44:18,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:44:18,975 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 22:44:18,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:44:18,975 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:44:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:44:19,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:44:19,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:44:19,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-22 22:44:19,046 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:44:19,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-22 22:44:19,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 22:44:19,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-22 22:44:19,046 INFO L87 Difference]: Start difference. First operand 555 states and 1670 transitions. Second operand 7 states. [2018-11-22 22:44:19,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:44:19,143 INFO L93 Difference]: Finished difference Result 427 states and 1254 transitions. [2018-11-22 22:44:19,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 22:44:19,143 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-11-22 22:44:19,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:44:19,144 INFO L225 Difference]: With dead ends: 427 [2018-11-22 22:44:19,144 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 22:44:19,144 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-22 22:44:19,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 22:44:19,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 22:44:19,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 22:44:19,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 22:44:19,145 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-22 22:44:19,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:44:19,145 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 22:44:19,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-22 22:44:19,145 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 22:44:19,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 22:44:19,148 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-22 22:44:19,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:44:19 BasicIcfg [2018-11-22 22:44:19,149 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 22:44:19,149 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 22:44:19,149 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 22:44:19,149 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 22:44:19,150 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:44:17" (3/4) ... [2018-11-22 22:44:19,152 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 22:44:19,158 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-22 22:44:19,158 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-22 22:44:19,158 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-22 22:44:19,161 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-22 22:44:19,161 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-22 22:44:19,191 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_20c1dbdb-fbf3-4f5a-91f1-75ea24fa0ad0/bin-2019/utaipan/witness.graphml [2018-11-22 22:44:19,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 22:44:19,192 INFO L168 Benchmark]: Toolchain (without parser) took 2452.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -95.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-22 22:44:19,193 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:44:19,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -127.4 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2018-11-22 22:44:19,193 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:44:19,194 INFO L168 Benchmark]: Boogie Preprocessor took 19.98 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. [2018-11-22 22:44:19,194 INFO L168 Benchmark]: RCFGBuilder took 275.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-11-22 22:44:19,194 INFO L168 Benchmark]: TraceAbstraction took 1706.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2018-11-22 22:44:19,195 INFO L168 Benchmark]: Witness Printer took 42.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-22 22:44:19,197 INFO L336 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 373.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -127.4 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.98 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 275.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1706.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. * Witness Printer took 42.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 70 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 327 SDtfs, 458 SDslu, 890 SDs, 0 SdLazy, 112 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 14603 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...