./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_27a86627-2129-44dd-a521-2cd5f5a77412/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_27a86627-2129-44dd-a521-2cd5f5a77412/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_27a86627-2129-44dd-a521-2cd5f5a77412/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_27a86627-2129-44dd-a521-2cd5f5a77412/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_27a86627-2129-44dd-a521-2cd5f5a77412/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_27a86627-2129-44dd-a521-2cd5f5a77412/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 032157667bf90bb578dfa5575ad6e7215a53bb53 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:48:26,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:48:26,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:48:26,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:48:26,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:48:26,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:48:26,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:48:26,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:48:26,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:48:26,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:48:26,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:48:26,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:48:26,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:48:26,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:48:26,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:48:26,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:48:26,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:48:26,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:48:26,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:48:26,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:48:26,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:48:26,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:48:26,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:48:26,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:48:26,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:48:26,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:48:26,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:48:26,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:48:26,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:48:26,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:48:26,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:48:26,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:48:26,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:48:26,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:48:26,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:48:26,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:48:26,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:48:26,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:48:26,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:48:26,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:48:26,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:48:26,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_27a86627-2129-44dd-a521-2cd5f5a77412/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:48:26,989 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:48:26,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:48:26,990 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:48:26,990 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:48:26,990 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:48:26,991 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:48:26,991 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:48:26,991 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:48:26,991 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:48:26,991 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:48:26,991 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:48:26,992 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:48:26,992 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:48:26,992 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:48:26,992 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:48:26,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:48:26,993 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:48:26,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:48:26,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:48:26,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:48:26,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:48:26,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:48:26,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:48:26,994 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:48:26,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:48:26,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:48:26,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:48:26,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:48:26,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:48:26,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:48:26,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:48:26,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:48:26,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:48:26,996 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:48:26,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:48:26,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:48:26,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:48:26,997 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_27a86627-2129-44dd-a521-2cd5f5a77412/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 -> 032157667bf90bb578dfa5575ad6e7215a53bb53 [2019-11-26 02:48:27,134 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:48:27,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:48:27,153 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:48:27,154 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:48:27,154 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:48:27,155 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_27a86627-2129-44dd-a521-2cd5f5a77412/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i [2019-11-26 02:48:27,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_27a86627-2129-44dd-a521-2cd5f5a77412/bin/utaipan/data/e29210454/5ce0549ca32b40239efa53bf47e659e8/FLAGdee6196cc [2019-11-26 02:48:27,710 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:48:27,711 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_27a86627-2129-44dd-a521-2cd5f5a77412/sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i [2019-11-26 02:48:27,724 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_27a86627-2129-44dd-a521-2cd5f5a77412/bin/utaipan/data/e29210454/5ce0549ca32b40239efa53bf47e659e8/FLAGdee6196cc [2019-11-26 02:48:28,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_27a86627-2129-44dd-a521-2cd5f5a77412/bin/utaipan/data/e29210454/5ce0549ca32b40239efa53bf47e659e8 [2019-11-26 02:48:28,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:48:28,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:48:28,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:48:28,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:48:28,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:48:28,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:48:28" (1/1) ... [2019-11-26 02:48:28,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1634f5b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:28, skipping insertion in model container [2019-11-26 02:48:28,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:48:28" (1/1) ... [2019-11-26 02:48:28,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:48:28,241 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:48:28,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:48:28,645 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:48:28,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:48:28,762 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:48:28,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:28 WrapperNode [2019-11-26 02:48:28,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:48:28,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:48:28,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:48:28,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:48:28,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:28" (1/1) ... [2019-11-26 02:48:28,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:28" (1/1) ... [2019-11-26 02:48:28,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:48:28,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:48:28,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:48:28,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:48:28,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:28" (1/1) ... [2019-11-26 02:48:28,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:28" (1/1) ... [2019-11-26 02:48:28,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:28" (1/1) ... [2019-11-26 02:48:28,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:28" (1/1) ... [2019-11-26 02:48:28,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:28" (1/1) ... [2019-11-26 02:48:28,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:28" (1/1) ... [2019-11-26 02:48:28,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:28" (1/1) ... [2019-11-26 02:48:28,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:48:28,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:48:28,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:48:28,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:48:28,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27a86627-2129-44dd-a521-2cd5f5a77412/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 [2019-11-26 02:48:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:48:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-26 02:48:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:48:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:48:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-26 02:48:28,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-26 02:48:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-26 02:48:28,911 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-26 02:48:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-26 02:48:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-26 02:48:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-26 02:48:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:48:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:48:28,917 WARN L202 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-26 02:48:29,262 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:48:29,262 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:48:29,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:48:29 BoogieIcfgContainer [2019-11-26 02:48:29,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:48:29,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:48:29,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:48:29,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:48:29,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:48:28" (1/3) ... [2019-11-26 02:48:29,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e81aeaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:48:29, skipping insertion in model container [2019-11-26 02:48:29,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:28" (2/3) ... [2019-11-26 02:48:29,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e81aeaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:48:29, skipping insertion in model container [2019-11-26 02:48:29,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:48:29" (3/3) ... [2019-11-26 02:48:29,270 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc.i [2019-11-26 02:48:29,315 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,315 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,315 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,315 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,316 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,316 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,316 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,317 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,317 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,317 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,317 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,318 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,318 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,318 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,318 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,318 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,319 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,319 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,319 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,320 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,320 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,320 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,320 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,321 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,321 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,321 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,321 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,321 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,322 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,322 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,322 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,323 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,323 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,323 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,323 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,323 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,324 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,324 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,324 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,324 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,325 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,325 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,325 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,326 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,326 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,326 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,326 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,326 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,327 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,327 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,327 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,327 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,328 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,328 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:48:29,350 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:48:29,350 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:48:29,357 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:48:29,368 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:48:29,387 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:48:29,387 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:48:29,388 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:48:29,388 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:48:29,388 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:48:29,388 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:48:29,388 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:48:29,389 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:48:29,400 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 76 transitions [2019-11-26 02:48:29,541 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-11-26 02:48:29,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-11-26 02:48:29,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:48:29,559 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:48:29,560 INFO L410 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] [2019-11-26 02:48:29,560 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:48:29,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:48:29,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1516766294, now seen corresponding path program 1 times [2019-11-26 02:48:29,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:48:29,575 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547648676] [2019-11-26 02:48:29,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:48:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:48:29,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:48:29,869 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547648676] [2019-11-26 02:48:29,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:48:29,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:48:29,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964487546] [2019-11-26 02:48:29,875 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:48:29,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:48:29,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:48:29,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:48:29,892 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-11-26 02:48:30,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:48:30,031 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-11-26 02:48:30,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:48:30,033 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-11-26 02:48:30,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:48:30,071 INFO L225 Difference]: With dead ends: 1296 [2019-11-26 02:48:30,071 INFO L226 Difference]: Without dead ends: 602 [2019-11-26 02:48:30,073 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:48:30,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-11-26 02:48:30,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-11-26 02:48:30,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-11-26 02:48:30,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-11-26 02:48:30,194 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-11-26 02:48:30,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:48:30,202 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-11-26 02:48:30,202 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:48:30,203 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-11-26 02:48:30,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 02:48:30,207 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:48:30,210 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:48:30,210 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:48:30,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:48:30,211 INFO L82 PathProgramCache]: Analyzing trace with hash 133649582, now seen corresponding path program 1 times [2019-11-26 02:48:30,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:48:30,211 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401368344] [2019-11-26 02:48:30,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:48:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:48:30,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:48:30,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401368344] [2019-11-26 02:48:30,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:48:30,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:48:30,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465996721] [2019-11-26 02:48:30,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:48:30,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:48:30,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:48:30,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:48:30,409 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-11-26 02:48:30,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:48:30,517 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-11-26 02:48:30,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:48:30,519 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-11-26 02:48:30,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:48:30,527 INFO L225 Difference]: With dead ends: 602 [2019-11-26 02:48:30,527 INFO L226 Difference]: Without dead ends: 539 [2019-11-26 02:48:30,528 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:48:30,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-11-26 02:48:30,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-11-26 02:48:30,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-11-26 02:48:30,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-11-26 02:48:30,589 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-11-26 02:48:30,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:48:30,589 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-11-26 02:48:30,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:48:30,590 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-11-26 02:48:30,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:48:30,592 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:48:30,593 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:48:30,593 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:48:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:48:30,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1242473568, now seen corresponding path program 1 times [2019-11-26 02:48:30,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:48:30,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96511657] [2019-11-26 02:48:30,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:48:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:48:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:48:30,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96511657] [2019-11-26 02:48:30,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:48:30,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:48:30,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575199479] [2019-11-26 02:48:30,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:48:30,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:48:30,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:48:30,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:48:30,784 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-11-26 02:48:30,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:48:30,878 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-11-26 02:48:30,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:48:30,879 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-11-26 02:48:30,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:48:30,882 INFO L225 Difference]: With dead ends: 404 [2019-11-26 02:48:30,883 INFO L226 Difference]: Without dead ends: 350 [2019-11-26 02:48:30,883 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:48:30,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-11-26 02:48:30,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-11-26 02:48:30,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-11-26 02:48:30,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-11-26 02:48:30,898 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-11-26 02:48:30,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:48:30,899 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-11-26 02:48:30,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:48:30,899 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-11-26 02:48:30,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-26 02:48:30,901 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:48:30,901 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:48:30,901 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:48:30,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:48:30,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1475421620, now seen corresponding path program 1 times [2019-11-26 02:48:30,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:48:30,902 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350550925] [2019-11-26 02:48:30,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:48:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:48:31,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:48:31,137 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350550925] [2019-11-26 02:48:31,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:48:31,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:48:31,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66723277] [2019-11-26 02:48:31,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:48:31,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:48:31,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:48:31,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:48:31,139 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 8 states. [2019-11-26 02:48:31,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:48:31,281 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-11-26 02:48:31,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:48:31,281 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-26 02:48:31,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:48:31,284 INFO L225 Difference]: With dead ends: 521 [2019-11-26 02:48:31,284 INFO L226 Difference]: Without dead ends: 278 [2019-11-26 02:48:31,285 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:48:31,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-11-26 02:48:31,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-11-26 02:48:31,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-11-26 02:48:31,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 727 transitions. [2019-11-26 02:48:31,298 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 727 transitions. Word has length 35 [2019-11-26 02:48:31,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:48:31,299 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 727 transitions. [2019-11-26 02:48:31,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:48:31,299 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 727 transitions. [2019-11-26 02:48:31,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-26 02:48:31,304 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:48:31,304 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:48:31,304 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:48:31,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:48:31,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1440827028, now seen corresponding path program 2 times [2019-11-26 02:48:31,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:48:31,306 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758923665] [2019-11-26 02:48:31,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:48:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:48:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:48:31,476 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758923665] [2019-11-26 02:48:31,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:48:31,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:48:31,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431414967] [2019-11-26 02:48:31,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:48:31,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:48:31,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:48:31,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:48:31,478 INFO L87 Difference]: Start difference. First operand 278 states and 727 transitions. Second operand 8 states. [2019-11-26 02:48:31,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:48:31,663 INFO L93 Difference]: Finished difference Result 449 states and 1207 transitions. [2019-11-26 02:48:31,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:48:31,664 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-26 02:48:31,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:48:31,666 INFO L225 Difference]: With dead ends: 449 [2019-11-26 02:48:31,667 INFO L226 Difference]: Without dead ends: 266 [2019-11-26 02:48:31,667 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:48:31,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-11-26 02:48:31,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2019-11-26 02:48:31,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-11-26 02:48:31,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 697 transitions. [2019-11-26 02:48:31,678 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 697 transitions. Word has length 35 [2019-11-26 02:48:31,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:48:31,679 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 697 transitions. [2019-11-26 02:48:31,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:48:31,680 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 697 transitions. [2019-11-26 02:48:31,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-26 02:48:31,681 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:48:31,681 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:48:31,681 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:48:31,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:48:31,682 INFO L82 PathProgramCache]: Analyzing trace with hash 2124924496, now seen corresponding path program 3 times [2019-11-26 02:48:31,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:48:31,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117328696] [2019-11-26 02:48:31,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:48:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:48:31,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:48:31,853 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117328696] [2019-11-26 02:48:31,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:48:31,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:48:31,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611357235] [2019-11-26 02:48:31,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:48:31,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:48:31,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:48:31,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:48:31,855 INFO L87 Difference]: Start difference. First operand 266 states and 697 transitions. Second operand 8 states. [2019-11-26 02:48:31,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:48:31,952 INFO L93 Difference]: Finished difference Result 212 states and 535 transitions. [2019-11-26 02:48:31,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:48:31,953 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-26 02:48:31,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:48:31,953 INFO L225 Difference]: With dead ends: 212 [2019-11-26 02:48:31,953 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:48:31,954 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:48:31,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:48:31,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:48:31,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:48:31,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:48:31,955 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-11-26 02:48:31,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:48:31,955 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:48:31,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:48:31,955 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:48:31,955 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:48:31,958 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:48:31,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:48:31 BasicIcfg [2019-11-26 02:48:31,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:48:31,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:48:31,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:48:31,961 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:48:31,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:48:29" (3/4) ... [2019-11-26 02:48:31,965 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:48:31,978 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-26 02:48:31,979 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-26 02:48:31,979 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-26 02:48:31,992 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:48:32,004 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:48:32,004 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:48:32,044 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_27a86627-2129-44dd-a521-2cd5f5a77412/bin/utaipan/witness.graphml [2019-11-26 02:48:32,045 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:48:32,046 INFO L168 Benchmark]: Toolchain (without parser) took 3863.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 946.1 MB in the beginning and 826.3 MB in the end (delta: 119.8 MB). Peak memory consumption was 251.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:48:32,047 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:48:32,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:48:32,048 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:48:32,049 INFO L168 Benchmark]: Boogie Preprocessor took 25.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:48:32,049 INFO L168 Benchmark]: RCFGBuilder took 428.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:48:32,050 INFO L168 Benchmark]: TraceAbstraction took 2695.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 826.3 MB in the end (delta: 239.0 MB). Peak memory consumption was 239.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:48:32,050 INFO L168 Benchmark]: Witness Printer took 84.44 ms. Allocated memory is still 1.2 GB. Free memory is still 826.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:48:32,056 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 579.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 428.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2695.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 826.3 MB in the end (delta: 239.0 MB). Peak memory consumption was 239.0 MB. Max. memory is 11.5 GB. * Witness Printer took 84.44 ms. Allocated memory is still 1.2 GB. Free memory is still 826.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 91 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 284 SDtfs, 399 SDslu, 770 SDs, 0 SdLazy, 114 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1249occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 21102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...