./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036_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_8f0fabae-3d50-4339-8614-9ebec3936cbd/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8f0fabae-3d50-4339-8614-9ebec3936cbd/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8f0fabae-3d50-4339-8614-9ebec3936cbd/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8f0fabae-3d50-4339-8614-9ebec3936cbd/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036_tso.oepc_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8f0fabae-3d50-4339-8614-9ebec3936cbd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8f0fabae-3d50-4339-8614-9ebec3936cbd/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 e98c1356c68e3af746563785227bb187c1d4628c ........................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 15:09:38,752 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:09:38,754 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:09:38,761 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:09:38,761 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:09:38,762 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:09:38,763 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:09:38,764 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:09:38,765 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:09:38,765 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:09:38,766 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:09:38,766 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:09:38,767 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:09:38,767 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:09:38,768 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:09:38,769 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:09:38,769 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:09:38,770 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:09:38,772 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:09:38,772 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:09:38,773 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:09:38,774 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:09:38,775 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:09:38,775 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:09:38,776 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:09:38,776 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:09:38,777 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:09:38,777 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:09:38,778 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:09:38,778 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:09:38,779 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:09:38,779 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:09:38,779 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:09:38,779 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:09:38,780 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:09:38,781 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:09:38,781 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8f0fabae-3d50-4339-8614-9ebec3936cbd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 15:09:38,788 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:09:38,789 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:09:38,789 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 15:09:38,789 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 15:09:38,789 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 15:09:38,790 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 15:09:38,790 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 15:09:38,790 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 15:09:38,790 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 15:09:38,790 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 15:09:38,790 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 15:09:38,790 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 15:09:38,790 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 15:09:38,791 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:09:38,791 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 15:09:38,791 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 15:09:38,791 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 15:09:38,791 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:09:38,792 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 15:09:38,792 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 15:09:38,792 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 15:09:38,792 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 15:09:38,792 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 15:09:38,792 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 15:09:38,792 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:09:38,793 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:09:38,793 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 15:09:38,793 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 15:09:38,793 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:09:38,793 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:09:38,793 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 15:09:38,793 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 15:09:38,793 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 15:09:38,794 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 15:09:38,794 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 15:09:38,794 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 15:09:38,794 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_8f0fabae-3d50-4339-8614-9ebec3936cbd/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 -> e98c1356c68e3af746563785227bb187c1d4628c [2018-12-09 15:09:38,813 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:09:38,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:09:38,822 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:09:38,823 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:09:38,824 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:09:38,824 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8f0fabae-3d50-4339-8614-9ebec3936cbd/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe036_tso.oepc_true-unreach-call.i [2018-12-09 15:09:38,864 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8f0fabae-3d50-4339-8614-9ebec3936cbd/bin-2019/utaipan/data/735eee2fc/0ae250fcd21d47e5bbc3680cbf84d016/FLAGc630070a7 [2018-12-09 15:09:39,344 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:09:39,345 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8f0fabae-3d50-4339-8614-9ebec3936cbd/sv-benchmarks/c/pthread-wmm/safe036_tso.oepc_true-unreach-call.i [2018-12-09 15:09:39,351 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8f0fabae-3d50-4339-8614-9ebec3936cbd/bin-2019/utaipan/data/735eee2fc/0ae250fcd21d47e5bbc3680cbf84d016/FLAGc630070a7 [2018-12-09 15:09:39,842 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8f0fabae-3d50-4339-8614-9ebec3936cbd/bin-2019/utaipan/data/735eee2fc/0ae250fcd21d47e5bbc3680cbf84d016 [2018-12-09 15:09:39,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:09:39,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:09:39,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:09:39,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:09:39,847 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:09:39,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:09:39" (1/1) ... [2018-12-09 15:09:39,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@264a29c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:39, skipping insertion in model container [2018-12-09 15:09:39,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:09:39" (1/1) ... [2018-12-09 15:09:39,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:09:39,872 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:09:40,031 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:09:40,039 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:09:40,101 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:09:40,136 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:09:40,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:40 WrapperNode [2018-12-09 15:09:40,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:09:40,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:09:40,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:09:40,137 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:09:40,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:40" (1/1) ... [2018-12-09 15:09:40,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:40" (1/1) ... [2018-12-09 15:09:40,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:09:40,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:09:40,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:09:40,167 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:09:40,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:40" (1/1) ... [2018-12-09 15:09:40,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:40" (1/1) ... [2018-12-09 15:09:40,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:40" (1/1) ... [2018-12-09 15:09:40,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:40" (1/1) ... [2018-12-09 15:09:40,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:40" (1/1) ... [2018-12-09 15:09:40,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:40" (1/1) ... [2018-12-09 15:09:40,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:40" (1/1) ... [2018-12-09 15:09:40,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:09:40,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:09:40,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:09:40,183 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:09:40,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8f0fabae-3d50-4339-8614-9ebec3936cbd/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 [2018-12-09 15:09:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 15:09:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 15:09:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-12-09 15:09:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 15:09:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-12-09 15:09:40,232 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-12-09 15:09:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-12-09 15:09:40,232 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-12-09 15:09:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-12-09 15:09:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:09:40,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:09:40,234 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-09 15:09:40,382 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:09:40,382 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 15:09:40,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:09:40 BoogieIcfgContainer [2018-12-09 15:09:40,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:09:40,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 15:09:40,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 15:09:40,385 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 15:09:40,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:09:39" (1/3) ... [2018-12-09 15:09:40,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3baadc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:09:40, skipping insertion in model container [2018-12-09 15:09:40,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:40" (2/3) ... [2018-12-09 15:09:40,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3baadc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:09:40, skipping insertion in model container [2018-12-09 15:09:40,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:09:40" (3/3) ... [2018-12-09 15:09:40,387 INFO L112 eAbstractionObserver]: Analyzing ICFG safe036_tso.oepc_true-unreach-call.i [2018-12-09 15:09:40,408 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,408 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,409 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,409 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,409 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,409 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,409 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,409 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,409 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,409 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,410 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,410 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,410 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,410 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,410 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,410 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,410 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,410 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,411 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,411 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 15:09:40,417 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-09 15:09:40,417 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 15:09:40,423 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 15:09:40,432 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 15:09:40,447 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 15:09:40,447 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 15:09:40,447 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 15:09:40,447 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:09:40,447 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:09:40,447 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 15:09:40,447 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:09:40,448 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 15:09:40,454 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44places, 42 transitions [2018-12-09 15:09:40,477 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 434 states. [2018-12-09 15:09:40,479 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states. [2018-12-09 15:09:40,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 15:09:40,488 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:09:40,488 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] [2018-12-09 15:09:40,490 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:09:40,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:09:40,495 INFO L82 PathProgramCache]: Analyzing trace with hash 2119373415, now seen corresponding path program 1 times [2018-12-09 15:09:40,497 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:09:40,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:09:40,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:09:40,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:09:40,533 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:09:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:09:40,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:09:40,639 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:09:40,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 15:09:40,639 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:09:40,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 15:09:40,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 15:09:40,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 15:09:40,652 INFO L87 Difference]: Start difference. First operand 434 states. Second operand 4 states. [2018-12-09 15:09:40,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:09:40,693 INFO L93 Difference]: Finished difference Result 444 states and 1061 transitions. [2018-12-09 15:09:40,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 15:09:40,694 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-12-09 15:09:40,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:09:40,703 INFO L225 Difference]: With dead ends: 444 [2018-12-09 15:09:40,703 INFO L226 Difference]: Without dead ends: 227 [2018-12-09 15:09:40,704 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 [2018-12-09 15:09:40,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-12-09 15:09:40,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2018-12-09 15:09:40,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2018-12-09 15:09:40,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 524 transitions. [2018-12-09 15:09:40,739 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 524 transitions. Word has length 25 [2018-12-09 15:09:40,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:09:40,739 INFO L480 AbstractCegarLoop]: Abstraction has 227 states and 524 transitions. [2018-12-09 15:09:40,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 15:09:40,739 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 524 transitions. [2018-12-09 15:09:40,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 15:09:40,740 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:09:40,741 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] [2018-12-09 15:09:40,741 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:09:40,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:09:40,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1838814607, now seen corresponding path program 1 times [2018-12-09 15:09:40,741 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:09:40,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:09:40,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:09:40,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:09:40,746 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:09:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:09:40,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:09:40,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:09:40,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 15:09:40,794 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:09:40,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 15:09:40,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 15:09:40,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-09 15:09:40,795 INFO L87 Difference]: Start difference. First operand 227 states and 524 transitions. Second operand 5 states. [2018-12-09 15:09:40,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:09:40,837 INFO L93 Difference]: Finished difference Result 195 states and 416 transitions. [2018-12-09 15:09:40,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 15:09:40,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-12-09 15:09:40,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:09:40,839 INFO L225 Difference]: With dead ends: 195 [2018-12-09 15:09:40,839 INFO L226 Difference]: Without dead ends: 171 [2018-12-09 15:09:40,840 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 [2018-12-09 15:09:40,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-12-09 15:09:40,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2018-12-09 15:09:40,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-12-09 15:09:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 370 transitions. [2018-12-09 15:09:40,849 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 370 transitions. Word has length 26 [2018-12-09 15:09:40,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:09:40,849 INFO L480 AbstractCegarLoop]: Abstraction has 171 states and 370 transitions. [2018-12-09 15:09:40,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 15:09:40,849 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 370 transitions. [2018-12-09 15:09:40,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 15:09:40,851 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:09:40,851 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:09:40,851 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:09:40,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:09:40,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1630101547, now seen corresponding path program 1 times [2018-12-09 15:09:40,852 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:09:40,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:09:40,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:09:40,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:09:40,856 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:09:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:09:40,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:09:40,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:09:40,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 15:09:40,948 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:09:40,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 15:09:40,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 15:09:40,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 15:09:40,949 INFO L87 Difference]: Start difference. First operand 171 states and 370 transitions. Second operand 8 states. [2018-12-09 15:09:41,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:09:41,066 INFO L93 Difference]: Finished difference Result 267 states and 594 transitions. [2018-12-09 15:09:41,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 15:09:41,067 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-12-09 15:09:41,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:09:41,068 INFO L225 Difference]: With dead ends: 267 [2018-12-09 15:09:41,068 INFO L226 Difference]: Without dead ends: 167 [2018-12-09 15:09:41,068 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2018-12-09 15:09:41,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-12-09 15:09:41,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2018-12-09 15:09:41,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-12-09 15:09:41,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 362 transitions. [2018-12-09 15:09:41,076 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 362 transitions. Word has length 27 [2018-12-09 15:09:41,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:09:41,076 INFO L480 AbstractCegarLoop]: Abstraction has 167 states and 362 transitions. [2018-12-09 15:09:41,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 15:09:41,076 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 362 transitions. [2018-12-09 15:09:41,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 15:09:41,077 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:09:41,078 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:09:41,078 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:09:41,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:09:41,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1348708445, now seen corresponding path program 2 times [2018-12-09 15:09:41,078 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:09:41,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:09:41,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:09:41,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:09:41,081 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:09:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:09:41,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:09:41,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:09:41,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 15:09:41,131 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:09:41,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:09:41,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:09:41,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:09:41,132 INFO L87 Difference]: Start difference. First operand 167 states and 362 transitions. Second operand 7 states. [2018-12-09 15:09:41,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:09:41,180 INFO L93 Difference]: Finished difference Result 135 states and 282 transitions. [2018-12-09 15:09:41,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:09:41,180 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-12-09 15:09:41,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:09:41,181 INFO L225 Difference]: With dead ends: 135 [2018-12-09 15:09:41,181 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 15:09:41,181 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-12-09 15:09:41,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 15:09:41,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 15:09:41,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 15:09:41,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 15:09:41,182 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-12-09 15:09:41,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:09:41,182 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 15:09:41,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:09:41,182 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 15:09:41,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 15:09:41,185 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-09 15:09:41,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:09:41 BasicIcfg [2018-12-09 15:09:41,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 15:09:41,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:09:41,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:09:41,188 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:09:41,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:09:40" (3/4) ... [2018-12-09 15:09:41,192 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 15:09:41,198 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-12-09 15:09:41,198 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-12-09 15:09:41,202 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-09 15:09:41,202 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 15:09:41,233 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8f0fabae-3d50-4339-8614-9ebec3936cbd/bin-2019/utaipan/witness.graphml [2018-12-09 15:09:41,233 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:09:41,233 INFO L168 Benchmark]: Toolchain (without parser) took 1389.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 954.9 MB in the beginning and 943.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 126.1 MB. Max. memory is 11.5 GB. [2018-12-09 15:09:41,234 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:09:41,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -134.3 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-12-09 15:09:41,234 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.91 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. [2018-12-09 15:09:41,235 INFO L168 Benchmark]: Boogie Preprocessor took 15.82 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-09 15:09:41,235 INFO L168 Benchmark]: RCFGBuilder took 199.91 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-12-09 15:09:41,235 INFO L168 Benchmark]: TraceAbstraction took 804.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 943.7 MB in the end (delta: 120.9 MB). Peak memory consumption was 120.9 MB. Max. memory is 11.5 GB. [2018-12-09 15:09:41,236 INFO L168 Benchmark]: Witness Printer took 45.38 ms. Allocated memory is still 1.1 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:09:41,237 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 292.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -134.3 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.82 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 199.91 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 804.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 943.7 MB in the end (delta: 120.9 MB). Peak memory consumption was 120.9 MB. Max. memory is 11.5 GB. * Witness Printer took 45.38 ms. Allocated memory is still 1.1 GB. Free memory is still 943.7 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 5 procedures, 54 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 174 SDtfs, 205 SDslu, 458 SDs, 0 SdLazy, 60 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=434occurred 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, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 6141 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...