./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe010_tso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe010_tso.oepc_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/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 8804903ace70f853bad07f9fee5b9b26b766495e ................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 20:35:29,700 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 20:35:29,701 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 20:35:29,707 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 20:35:29,707 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 20:35:29,707 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 20:35:29,708 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 20:35:29,709 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 20:35:29,710 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 20:35:29,710 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 20:35:29,710 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 20:35:29,711 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 20:35:29,711 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 20:35:29,711 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 20:35:29,712 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 20:35:29,712 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 20:35:29,713 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 20:35:29,714 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 20:35:29,714 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 20:35:29,715 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 20:35:29,716 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 20:35:29,716 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 20:35:29,717 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 20:35:29,717 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 20:35:29,718 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 20:35:29,718 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 20:35:29,719 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 20:35:29,719 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 20:35:29,719 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 20:35:29,720 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 20:35:29,720 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 20:35:29,720 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 20:35:29,720 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 20:35:29,721 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 20:35:29,721 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 20:35:29,721 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 20:35:29,722 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 20:35:29,728 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 20:35:29,729 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 20:35:29,729 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 20:35:29,729 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 20:35:29,729 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 20:35:29,730 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 20:35:29,730 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 20:35:29,730 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 20:35:29,730 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 20:35:29,730 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 20:35:29,730 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 20:35:29,730 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 20:35:29,730 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 20:35:29,731 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 20:35:29,731 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 20:35:29,731 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 20:35:29,731 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 20:35:29,731 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 20:35:29,731 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 20:35:29,732 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 20:35:29,732 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 20:35:29,732 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 20:35:29,732 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 20:35:29,732 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 20:35:29,732 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 20:35:29,732 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 20:35:29,733 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 20:35:29,733 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 20:35:29,733 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 20:35:29,733 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 20:35:29,733 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 20:35:29,733 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 20:35:29,733 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 20:35:29,733 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 20:35:29,734 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 20:35:29,734 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 20:35:29,734 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_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/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 -> 8804903ace70f853bad07f9fee5b9b26b766495e [2018-12-08 20:35:29,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 20:35:29,760 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 20:35:29,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 20:35:29,764 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 20:35:29,764 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 20:35:29,765 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe010_tso.oepc_true-unreach-call.i [2018-12-08 20:35:29,801 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/bin-2019/utaipan/data/71e9975c3/7741a1a6b20249e1bb3312499aa11903/FLAGf5dc4ff95 [2018-12-08 20:35:30,155 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 20:35:30,156 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/sv-benchmarks/c/pthread-wmm/safe010_tso.oepc_true-unreach-call.i [2018-12-08 20:35:30,164 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/bin-2019/utaipan/data/71e9975c3/7741a1a6b20249e1bb3312499aa11903/FLAGf5dc4ff95 [2018-12-08 20:35:30,525 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/bin-2019/utaipan/data/71e9975c3/7741a1a6b20249e1bb3312499aa11903 [2018-12-08 20:35:30,527 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 20:35:30,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 20:35:30,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 20:35:30,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 20:35:30,533 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 20:35:30,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:35:30" (1/1) ... [2018-12-08 20:35:30,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae65c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:35:30, skipping insertion in model container [2018-12-08 20:35:30,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:35:30" (1/1) ... [2018-12-08 20:35:30,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 20:35:30,572 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 20:35:30,742 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 20:35:30,751 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 20:35:30,817 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 20:35:30,846 INFO L195 MainTranslator]: Completed translation [2018-12-08 20:35:30,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:35:30 WrapperNode [2018-12-08 20:35:30,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 20:35:30,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 20:35:30,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 20:35:30,847 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 20:35:30,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:35:30" (1/1) ... [2018-12-08 20:35:30,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:35:30" (1/1) ... [2018-12-08 20:35:30,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 20:35:30,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 20:35:30,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 20:35:30,872 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 20:35:30,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:35:30" (1/1) ... [2018-12-08 20:35:30,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:35:30" (1/1) ... [2018-12-08 20:35:30,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:35:30" (1/1) ... [2018-12-08 20:35:30,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:35:30" (1/1) ... [2018-12-08 20:35:30,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:35:30" (1/1) ... [2018-12-08 20:35:30,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:35:30" (1/1) ... [2018-12-08 20:35:30,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:35:30" (1/1) ... [2018-12-08 20:35:30,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 20:35:30,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 20:35:30,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 20:35:30,886 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 20:35:30,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:35:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/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 [2018-12-08 20:35:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 20:35:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 20:35:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-12-08 20:35:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 20:35:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-12-08 20:35:30,918 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-12-08 20:35:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-12-08 20:35:30,918 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-12-08 20:35:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-12-08 20:35:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 20:35:30,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 20:35:30,919 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-08 20:35:31,041 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 20:35:31,042 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-08 20:35:31,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:35:31 BoogieIcfgContainer [2018-12-08 20:35:31,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 20:35:31,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 20:35:31,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 20:35:31,045 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 20:35:31,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:35:30" (1/3) ... [2018-12-08 20:35:31,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4753789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:35:31, skipping insertion in model container [2018-12-08 20:35:31,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:35:30" (2/3) ... [2018-12-08 20:35:31,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4753789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:35:31, skipping insertion in model container [2018-12-08 20:35:31,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:35:31" (3/3) ... [2018-12-08 20:35:31,047 INFO L112 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc_true-unreach-call.i [2018-12-08 20:35:31,067 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,067 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,067 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,068 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,068 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,068 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,068 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,068 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,068 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,068 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,069 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,069 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,069 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,069 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,069 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,069 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,069 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,069 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,069 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,069 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 20:35:31,075 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-08 20:35:31,075 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 20:35:31,079 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 20:35:31,088 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 20:35:31,102 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 20:35:31,102 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 20:35:31,103 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 20:35:31,103 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 20:35:31,103 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 20:35:31,103 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 20:35:31,103 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 20:35:31,103 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 20:35:31,108 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43places, 41 transitions [2018-12-08 20:35:31,128 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 433 states. [2018-12-08 20:35:31,130 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states. [2018-12-08 20:35:31,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 20:35:31,139 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:35:31,140 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] [2018-12-08 20:35:31,142 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:35:31,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:35:31,147 INFO L82 PathProgramCache]: Analyzing trace with hash -631790966, now seen corresponding path program 1 times [2018-12-08 20:35:31,148 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:35:31,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:35:31,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:35:31,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:35:31,184 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:35:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:35:31,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:35:31,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:35:31,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 20:35:31,284 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:35:31,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 20:35:31,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 20:35:31,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 20:35:31,301 INFO L87 Difference]: Start difference. First operand 433 states. Second operand 4 states. [2018-12-08 20:35:31,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:35:31,342 INFO L93 Difference]: Finished difference Result 443 states and 1060 transitions. [2018-12-08 20:35:31,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 20:35:31,343 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-12-08 20:35:31,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:35:31,354 INFO L225 Difference]: With dead ends: 443 [2018-12-08 20:35:31,354 INFO L226 Difference]: Without dead ends: 226 [2018-12-08 20:35:31,355 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 [2018-12-08 20:35:31,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-12-08 20:35:31,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2018-12-08 20:35:31,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-12-08 20:35:31,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 523 transitions. [2018-12-08 20:35:31,387 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 523 transitions. Word has length 24 [2018-12-08 20:35:31,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:35:31,387 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 523 transitions. [2018-12-08 20:35:31,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 20:35:31,387 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 523 transitions. [2018-12-08 20:35:31,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 20:35:31,388 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:35:31,388 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] [2018-12-08 20:35:31,388 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:35:31,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:35:31,389 INFO L82 PathProgramCache]: Analyzing trace with hash 960433980, now seen corresponding path program 1 times [2018-12-08 20:35:31,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:35:31,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:35:31,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:35:31,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:35:31,392 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:35:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:35:31,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:35:31,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:35:31,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 20:35:31,438 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:35:31,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 20:35:31,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 20:35:31,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 20:35:31,440 INFO L87 Difference]: Start difference. First operand 226 states and 523 transitions. Second operand 5 states. [2018-12-08 20:35:31,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:35:31,483 INFO L93 Difference]: Finished difference Result 194 states and 415 transitions. [2018-12-08 20:35:31,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 20:35:31,483 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-12-08 20:35:31,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:35:31,484 INFO L225 Difference]: With dead ends: 194 [2018-12-08 20:35:31,484 INFO L226 Difference]: Without dead ends: 170 [2018-12-08 20:35:31,485 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 [2018-12-08 20:35:31,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-12-08 20:35:31,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2018-12-08 20:35:31,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-12-08 20:35:31,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 369 transitions. [2018-12-08 20:35:31,491 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 369 transitions. Word has length 25 [2018-12-08 20:35:31,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:35:31,491 INFO L480 AbstractCegarLoop]: Abstraction has 170 states and 369 transitions. [2018-12-08 20:35:31,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 20:35:31,492 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 369 transitions. [2018-12-08 20:35:31,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-08 20:35:31,492 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:35:31,493 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] [2018-12-08 20:35:31,493 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:35:31,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:35:31,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1509875244, now seen corresponding path program 1 times [2018-12-08 20:35:31,493 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:35:31,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:35:31,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:35:31,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:35:31,496 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:35:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:35:31,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:35:31,554 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:35:31,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 20:35:31,554 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:35:31,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 20:35:31,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 20:35:31,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 20:35:31,555 INFO L87 Difference]: Start difference. First operand 170 states and 369 transitions. Second operand 7 states. [2018-12-08 20:35:31,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:35:31,658 INFO L93 Difference]: Finished difference Result 266 states and 593 transitions. [2018-12-08 20:35:31,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 20:35:31,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-08 20:35:31,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:35:31,659 INFO L225 Difference]: With dead ends: 266 [2018-12-08 20:35:31,659 INFO L226 Difference]: Without dead ends: 150 [2018-12-08 20:35:31,660 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 [2018-12-08 20:35:31,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-12-08 20:35:31,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-12-08 20:35:31,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-12-08 20:35:31,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 329 transitions. [2018-12-08 20:35:31,666 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 329 transitions. Word has length 26 [2018-12-08 20:35:31,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:35:31,666 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 329 transitions. [2018-12-08 20:35:31,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 20:35:31,666 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 329 transitions. [2018-12-08 20:35:31,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-08 20:35:31,667 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 20:35:31,667 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] [2018-12-08 20:35:31,667 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 20:35:31,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 20:35:31,668 INFO L82 PathProgramCache]: Analyzing trace with hash -281172338, now seen corresponding path program 2 times [2018-12-08 20:35:31,668 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 20:35:31,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:35:31,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 20:35:31,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 20:35:31,670 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 20:35:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 20:35:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 20:35:31,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 20:35:31,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 20:35:31,752 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 20:35:31,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 20:35:31,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 20:35:31,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-08 20:35:31,753 INFO L87 Difference]: Start difference. First operand 150 states and 329 transitions. Second operand 8 states. [2018-12-08 20:35:31,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 20:35:31,852 INFO L93 Difference]: Finished difference Result 118 states and 249 transitions. [2018-12-08 20:35:31,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 20:35:31,853 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-12-08 20:35:31,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 20:35:31,853 INFO L225 Difference]: With dead ends: 118 [2018-12-08 20:35:31,853 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 20:35:31,853 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-12-08 20:35:31,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 20:35:31,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 20:35:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 20:35:31,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 20:35:31,854 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-08 20:35:31,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 20:35:31,854 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 20:35:31,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 20:35:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 20:35:31,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 20:35:31,856 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-08 20:35:31,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:35:31 BasicIcfg [2018-12-08 20:35:31,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 20:35:31,858 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 20:35:31,858 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 20:35:31,858 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 20:35:31,858 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:35:31" (3/4) ... [2018-12-08 20:35:31,860 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 20:35:31,865 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-12-08 20:35:31,865 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-12-08 20:35:31,868 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-08 20:35:31,868 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 20:35:31,897 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c1d9c864-beb8-4f9e-87e7-7aff314f3e45/bin-2019/utaipan/witness.graphml [2018-12-08 20:35:31,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 20:35:31,897 INFO L168 Benchmark]: Toolchain (without parser) took 1369.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 950.6 MB in the beginning and 925.9 MB in the end (delta: 24.7 MB). Peak memory consumption was 127.4 MB. Max. memory is 11.5 GB. [2018-12-08 20:35:31,898 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 20:35:31,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -128.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-12-08 20:35:31,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.39 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. [2018-12-08 20:35:31,899 INFO L168 Benchmark]: Boogie Preprocessor took 13.70 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. [2018-12-08 20:35:31,899 INFO L168 Benchmark]: RCFGBuilder took 156.22 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2018-12-08 20:35:31,899 INFO L168 Benchmark]: TraceAbstraction took 814.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 928.6 MB in the end (delta: 128.1 MB). Peak memory consumption was 128.1 MB. Max. memory is 11.5 GB. [2018-12-08 20:35:31,900 INFO L168 Benchmark]: Witness Printer took 39.22 ms. Allocated memory is still 1.1 GB. Free memory was 928.6 MB in the beginning and 925.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 20:35:31,901 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 317.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -128.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.39 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 13.70 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 156.22 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 814.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 928.6 MB in the end (delta: 128.1 MB). Peak memory consumption was 128.1 MB. Max. memory is 11.5 GB. * Witness Printer took 39.22 ms. Allocated memory is still 1.1 GB. Free memory was 928.6 MB in the beginning and 925.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 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 5 procedures, 53 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 167 SDtfs, 197 SDslu, 416 SDs, 0 SdLazy, 60 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=433occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 6432 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...