./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_41fa74fd-9363-45d7-8a52-1ec6664e35d5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_41fa74fd-9363-45d7-8a52-1ec6664e35d5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_41fa74fd-9363-45d7-8a52-1ec6664e35d5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_41fa74fd-9363-45d7-8a52-1ec6664e35d5/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_41fa74fd-9363-45d7-8a52-1ec6664e35d5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_41fa74fd-9363-45d7-8a52-1ec6664e35d5/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e8a85d066d92098a982cd2a6968227bedd85e24f ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 07:02:27,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:02:27,781 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:02:27,790 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:02:27,790 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:02:27,790 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:02:27,791 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:02:27,792 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:02:27,794 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:02:27,794 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:02:27,795 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:02:27,795 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:02:27,796 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:02:27,796 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:02:27,797 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:02:27,798 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:02:27,798 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:02:27,800 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:02:27,801 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:02:27,802 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:02:27,803 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:02:27,804 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:02:27,806 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:02:27,806 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:02:27,806 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:02:27,807 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:02:27,808 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:02:27,808 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:02:27,809 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:02:27,810 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:02:27,810 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:02:27,810 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:02:27,810 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:02:27,811 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:02:27,811 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:02:27,812 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:02:27,812 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_41fa74fd-9363-45d7-8a52-1ec6664e35d5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 07:02:27,821 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:02:27,822 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:02:27,822 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:02:27,822 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:02:27,823 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 07:02:27,823 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 07:02:27,823 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 07:02:27,823 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:02:27,824 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:02:27,824 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 07:02:27,824 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:02:27,824 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:02:27,824 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:02:27,824 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:02:27,824 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:02:27,824 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:02:27,825 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:02:27,825 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:02:27,825 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:02:27,825 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:02:27,825 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:02:27,825 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:02:27,825 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:02:27,826 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:02:27,826 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:02:27,826 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:02:27,826 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:02:27,826 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 07:02:27,826 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:02:27,826 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 07:02:27,827 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_41fa74fd-9363-45d7-8a52-1ec6664e35d5/bin-2019/uautomizer 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 -> Automizer 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 -> e8a85d066d92098a982cd2a6968227bedd85e24f [2018-11-23 07:02:27,851 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:02:27,858 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:02:27,861 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:02:27,862 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:02:27,862 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:02:27,862 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_41fa74fd-9363-45d7-8a52-1ec6664e35d5/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_true-unreach-call.i [2018-11-23 07:02:27,899 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_41fa74fd-9363-45d7-8a52-1ec6664e35d5/bin-2019/uautomizer/data/60e034580/952ef54abdc744d3ac5a998518defc5f/FLAG076564ed5 [2018-11-23 07:02:28,338 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:02:28,338 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_41fa74fd-9363-45d7-8a52-1ec6664e35d5/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_true-unreach-call.i [2018-11-23 07:02:28,348 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_41fa74fd-9363-45d7-8a52-1ec6664e35d5/bin-2019/uautomizer/data/60e034580/952ef54abdc744d3ac5a998518defc5f/FLAG076564ed5 [2018-11-23 07:02:28,357 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_41fa74fd-9363-45d7-8a52-1ec6664e35d5/bin-2019/uautomizer/data/60e034580/952ef54abdc744d3ac5a998518defc5f [2018-11-23 07:02:28,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:02:28,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:02:28,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:02:28,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:02:28,363 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:02:28,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:02:28" (1/1) ... [2018-11-23 07:02:28,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f540941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:02:28, skipping insertion in model container [2018-11-23 07:02:28,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:02:28" (1/1) ... [2018-11-23 07:02:28,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:02:28,401 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:02:28,613 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:02:28,624 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:02:28,699 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:02:28,733 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:02:28,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:02:28 WrapperNode [2018-11-23 07:02:28,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:02:28,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:02:28,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:02:28,734 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:02:28,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:02:28" (1/1) ... [2018-11-23 07:02:28,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:02:28" (1/1) ... [2018-11-23 07:02:28,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:02:28,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:02:28,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:02:28,766 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:02:28,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:02:28" (1/1) ... [2018-11-23 07:02:28,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:02:28" (1/1) ... [2018-11-23 07:02:28,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:02:28" (1/1) ... [2018-11-23 07:02:28,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:02:28" (1/1) ... [2018-11-23 07:02:28,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:02:28" (1/1) ... [2018-11-23 07:02:28,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:02:28" (1/1) ... [2018-11-23 07:02:28,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:02:28" (1/1) ... [2018-11-23 07:02:28,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:02:28,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:02:28,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:02:28,786 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:02:28,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:02:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_41fa74fd-9363-45d7-8a52-1ec6664e35d5/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:02:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 07:02:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 07:02:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-23 07:02:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 07:02:28,843 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-23 07:02:28,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-23 07:02:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-23 07:02:28,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-23 07:02:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-23 07:02:28,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-23 07:02:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2018-11-23 07:02:28,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2018-11-23 07:02:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-23 07:02:28,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:02:28,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:02:28,846 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-23 07:02:29,130 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:02:29,131 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 07:02:29,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:02:29 BoogieIcfgContainer [2018-11-23 07:02:29,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:02:29,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:02:29,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:02:29,134 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:02:29,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:02:28" (1/3) ... [2018-11-23 07:02:29,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1a6f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:02:29, skipping insertion in model container [2018-11-23 07:02:29,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:02:28" (2/3) ... [2018-11-23 07:02:29,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1a6f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:02:29, skipping insertion in model container [2018-11-23 07:02:29,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:02:29" (3/3) ... [2018-11-23 07:02:29,136 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_true-unreach-call.i [2018-11-23 07:02:29,160 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,160 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,160 WARN L317 ript$VariableManager]: TermVariabe Thread3_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,160 WARN L317 ript$VariableManager]: TermVariabe Thread3_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,160 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,161 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,161 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,161 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,161 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,161 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,162 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,162 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,162 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,162 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,162 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,162 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,162 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,163 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,163 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,163 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,163 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,163 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,163 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,163 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,164 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,164 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,164 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,164 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,164 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,164 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,165 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,165 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,165 WARN L317 ript$VariableManager]: TermVariabe Thread2_P3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,165 WARN L317 ript$VariableManager]: TermVariabe Thread2_P3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,165 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#t~nondet6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,165 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#t~nondet6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,165 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,166 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,166 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#t~nondet6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,166 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#t~nondet6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:02:29,174 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 07:02:29,175 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:02:29,180 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 07:02:29,191 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 07:02:29,208 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 07:02:29,208 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:02:29,208 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:02:29,208 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:02:29,209 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:02:29,209 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:02:29,209 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:02:29,209 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:02:29,209 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:02:29,215 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67places, 63 transitions [2018-11-23 07:02:29,895 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13135 states. [2018-11-23 07:02:29,896 INFO L276 IsEmpty]: Start isEmpty. Operand 13135 states. [2018-11-23 07:02:29,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-23 07:02:29,917 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:02:29,918 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:02:29,920 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:02:29,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:02:29,924 INFO L82 PathProgramCache]: Analyzing trace with hash 2121463999, now seen corresponding path program 1 times [2018-11-23 07:02:29,925 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:02:29,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:02:29,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:29,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:02:29,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:02:30,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:02:30,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:02:30,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 07:02:30,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 07:02:30,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 07:02:30,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:02:30,127 INFO L87 Difference]: Start difference. First operand 13135 states. Second operand 4 states. [2018-11-23 07:02:30,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:02:30,397 INFO L93 Difference]: Finished difference Result 13741 states and 55792 transitions. [2018-11-23 07:02:30,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 07:02:30,398 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-11-23 07:02:30,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:02:30,433 INFO L225 Difference]: With dead ends: 13741 [2018-11-23 07:02:30,433 INFO L226 Difference]: Without dead ends: 5628 [2018-11-23 07:02:30,434 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 07:02:30,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5628 states. [2018-11-23 07:02:30,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5628 to 5628. [2018-11-23 07:02:30,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5628 states. [2018-11-23 07:02:30,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5628 states to 5628 states and 22351 transitions. [2018-11-23 07:02:30,590 INFO L78 Accepts]: Start accepts. Automaton has 5628 states and 22351 transitions. Word has length 34 [2018-11-23 07:02:30,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:02:30,591 INFO L480 AbstractCegarLoop]: Abstraction has 5628 states and 22351 transitions. [2018-11-23 07:02:30,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 07:02:30,591 INFO L276 IsEmpty]: Start isEmpty. Operand 5628 states and 22351 transitions. [2018-11-23 07:02:30,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-23 07:02:30,595 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:02:30,595 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:02:30,595 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:02:30,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:02:30,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1567952221, now seen corresponding path program 1 times [2018-11-23 07:02:30,596 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:02:30,596 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:02:30,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:30,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:02:30,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:02:30,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:02:30,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:02:30,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 07:02:30,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 07:02:30,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 07:02:30,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 07:02:30,682 INFO L87 Difference]: Start difference. First operand 5628 states and 22351 transitions. Second operand 5 states. [2018-11-23 07:02:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:02:30,785 INFO L93 Difference]: Finished difference Result 6140 states and 23831 transitions. [2018-11-23 07:02:30,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:02:30,786 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-23 07:02:30,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:02:30,806 INFO L225 Difference]: With dead ends: 6140 [2018-11-23 07:02:30,806 INFO L226 Difference]: Without dead ends: 5516 [2018-11-23 07:02:30,806 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:02:30,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5516 states. [2018-11-23 07:02:30,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5516 to 5516. [2018-11-23 07:02:30,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5516 states. [2018-11-23 07:02:30,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5516 states to 5516 states and 21819 transitions. [2018-11-23 07:02:30,917 INFO L78 Accepts]: Start accepts. Automaton has 5516 states and 21819 transitions. Word has length 35 [2018-11-23 07:02:30,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:02:30,917 INFO L480 AbstractCegarLoop]: Abstraction has 5516 states and 21819 transitions. [2018-11-23 07:02:30,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 07:02:30,918 INFO L276 IsEmpty]: Start isEmpty. Operand 5516 states and 21819 transitions. [2018-11-23 07:02:30,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-23 07:02:30,922 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:02:30,922 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:02:30,922 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:02:30,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:02:30,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1714687443, now seen corresponding path program 1 times [2018-11-23 07:02:30,922 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:02:30,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:02:30,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:30,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:02:30,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:02:30,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:02:30,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:02:30,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 07:02:30,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 07:02:30,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 07:02:30,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 07:02:30,994 INFO L87 Difference]: Start difference. First operand 5516 states and 21819 transitions. Second operand 6 states. [2018-11-23 07:02:31,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:02:31,093 INFO L93 Difference]: Finished difference Result 5452 states and 20827 transitions. [2018-11-23 07:02:31,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 07:02:31,093 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2018-11-23 07:02:31,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:02:31,112 INFO L225 Difference]: With dead ends: 5452 [2018-11-23 07:02:31,113 INFO L226 Difference]: Without dead ends: 4844 [2018-11-23 07:02:31,113 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-23 07:02:31,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2018-11-23 07:02:31,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4844. [2018-11-23 07:02:31,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4844 states. [2018-11-23 07:02:31,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4844 states to 4844 states and 18795 transitions. [2018-11-23 07:02:31,203 INFO L78 Accepts]: Start accepts. Automaton has 4844 states and 18795 transitions. Word has length 36 [2018-11-23 07:02:31,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:02:31,204 INFO L480 AbstractCegarLoop]: Abstraction has 4844 states and 18795 transitions. [2018-11-23 07:02:31,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 07:02:31,204 INFO L276 IsEmpty]: Start isEmpty. Operand 4844 states and 18795 transitions. [2018-11-23 07:02:31,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 07:02:31,208 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:02:31,208 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:02:31,208 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:02:31,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:02:31,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1780063403, now seen corresponding path program 1 times [2018-11-23 07:02:31,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:02:31,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:02:31,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:31,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:02:31,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:02:31,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:02:31,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:02:31,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 07:02:31,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:02:31,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:02:31,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:02:31,276 INFO L87 Difference]: Start difference. First operand 4844 states and 18795 transitions. Second operand 7 states. [2018-11-23 07:02:31,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:02:31,370 INFO L93 Difference]: Finished difference Result 3564 states and 13035 transitions. [2018-11-23 07:02:31,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 07:02:31,371 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2018-11-23 07:02:31,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:02:31,381 INFO L225 Difference]: With dead ends: 3564 [2018-11-23 07:02:31,381 INFO L226 Difference]: Without dead ends: 3052 [2018-11-23 07:02:31,381 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-23 07:02:31,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3052 states. [2018-11-23 07:02:31,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3052 to 3052. [2018-11-23 07:02:31,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3052 states. [2018-11-23 07:02:31,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 11179 transitions. [2018-11-23 07:02:31,451 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 11179 transitions. Word has length 37 [2018-11-23 07:02:31,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:02:31,451 INFO L480 AbstractCegarLoop]: Abstraction has 3052 states and 11179 transitions. [2018-11-23 07:02:31,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:02:31,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 11179 transitions. [2018-11-23 07:02:31,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-23 07:02:31,455 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:02:31,455 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:02:31,455 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:02:31,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:02:31,456 INFO L82 PathProgramCache]: Analyzing trace with hash 2106942385, now seen corresponding path program 1 times [2018-11-23 07:02:31,456 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:02:31,456 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:02:31,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:31,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:02:31,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:02:31,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:02:31,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:02:31,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 07:02:31,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 07:02:31,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 07:02:31,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 07:02:31,537 INFO L87 Difference]: Start difference. First operand 3052 states and 11179 transitions. Second operand 6 states. [2018-11-23 07:02:31,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:02:31,672 INFO L93 Difference]: Finished difference Result 4732 states and 17539 transitions. [2018-11-23 07:02:31,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:02:31,672 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2018-11-23 07:02:31,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:02:31,683 INFO L225 Difference]: With dead ends: 4732 [2018-11-23 07:02:31,683 INFO L226 Difference]: Without dead ends: 2952 [2018-11-23 07:02:31,684 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 07:02:31,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2018-11-23 07:02:31,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2952. [2018-11-23 07:02:31,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2952 states. [2018-11-23 07:02:31,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2952 states to 2952 states and 10819 transitions. [2018-11-23 07:02:31,767 INFO L78 Accepts]: Start accepts. Automaton has 2952 states and 10819 transitions. Word has length 38 [2018-11-23 07:02:31,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:02:31,767 INFO L480 AbstractCegarLoop]: Abstraction has 2952 states and 10819 transitions. [2018-11-23 07:02:31,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 07:02:31,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2952 states and 10819 transitions. [2018-11-23 07:02:31,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-23 07:02:31,771 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:02:31,771 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:02:31,771 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:02:31,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:02:31,771 INFO L82 PathProgramCache]: Analyzing trace with hash -871867607, now seen corresponding path program 2 times [2018-11-23 07:02:31,771 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:02:31,771 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:02:31,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:31,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:02:31,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:02:31,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:02:31,844 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:02:31,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 07:02:31,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:02:31,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:02:31,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:02:31,844 INFO L87 Difference]: Start difference. First operand 2952 states and 10819 transitions. Second operand 7 states. [2018-11-23 07:02:31,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:02:31,912 INFO L93 Difference]: Finished difference Result 4952 states and 18235 transitions. [2018-11-23 07:02:31,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 07:02:31,915 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-11-23 07:02:31,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:02:31,921 INFO L225 Difference]: With dead ends: 4952 [2018-11-23 07:02:31,921 INFO L226 Difference]: Without dead ends: 2756 [2018-11-23 07:02:31,922 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-23 07:02:31,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2018-11-23 07:02:31,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 2756. [2018-11-23 07:02:31,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2756 states. [2018-11-23 07:02:31,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 10203 transitions. [2018-11-23 07:02:31,962 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 10203 transitions. Word has length 38 [2018-11-23 07:02:31,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:02:31,962 INFO L480 AbstractCegarLoop]: Abstraction has 2756 states and 10203 transitions. [2018-11-23 07:02:31,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:02:31,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 10203 transitions. [2018-11-23 07:02:31,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-23 07:02:31,964 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:02:31,964 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:02:31,965 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:02:31,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:02:31,965 INFO L82 PathProgramCache]: Analyzing trace with hash -894920831, now seen corresponding path program 3 times [2018-11-23 07:02:31,965 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:02:31,965 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:02:31,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:31,967 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:02:31,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:02:32,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:02:32,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:02:32,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 07:02:32,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:02:32,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:02:32,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:02:32,033 INFO L87 Difference]: Start difference. First operand 2756 states and 10203 transitions. Second operand 7 states. [2018-11-23 07:02:32,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:02:32,103 INFO L93 Difference]: Finished difference Result 4612 states and 17131 transitions. [2018-11-23 07:02:32,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 07:02:32,103 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-11-23 07:02:32,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:02:32,110 INFO L225 Difference]: With dead ends: 4612 [2018-11-23 07:02:32,110 INFO L226 Difference]: Without dead ends: 2576 [2018-11-23 07:02:32,110 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-23 07:02:32,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2018-11-23 07:02:32,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2576. [2018-11-23 07:02:32,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2576 states. [2018-11-23 07:02:32,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2576 states to 2576 states and 9591 transitions. [2018-11-23 07:02:32,150 INFO L78 Accepts]: Start accepts. Automaton has 2576 states and 9591 transitions. Word has length 38 [2018-11-23 07:02:32,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:02:32,150 INFO L480 AbstractCegarLoop]: Abstraction has 2576 states and 9591 transitions. [2018-11-23 07:02:32,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:02:32,150 INFO L276 IsEmpty]: Start isEmpty. Operand 2576 states and 9591 transitions. [2018-11-23 07:02:32,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-23 07:02:32,152 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:02:32,152 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:02:32,152 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:02:32,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:02:32,153 INFO L82 PathProgramCache]: Analyzing trace with hash 358548407, now seen corresponding path program 4 times [2018-11-23 07:02:32,153 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:02:32,153 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:02:32,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:32,154 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:02:32,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:02:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:02:32,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:02:32,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:02:32,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 07:02:32,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:02:32,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:02:32,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:02:32,235 INFO L87 Difference]: Start difference. First operand 2576 states and 9591 transitions. Second operand 7 states. [2018-11-23 07:02:32,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:02:32,293 INFO L93 Difference]: Finished difference Result 2064 states and 7543 transitions. [2018-11-23 07:02:32,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 07:02:32,293 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-11-23 07:02:32,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:02:32,293 INFO L225 Difference]: With dead ends: 2064 [2018-11-23 07:02:32,294 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 07:02:32,294 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-23 07:02:32,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 07:02:32,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 07:02:32,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 07:02:32,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 07:02:32,295 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2018-11-23 07:02:32,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:02:32,296 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:02:32,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:02:32,296 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 07:02:32,296 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 07:02:32,298 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 07:02:32,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:02:32 BasicIcfg [2018-11-23 07:02:32,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 07:02:32,300 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:02:32,300 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:02:32,300 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:02:32,300 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:02:29" (3/4) ... [2018-11-23 07:02:32,303 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 07:02:32,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-23 07:02:32,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-23 07:02:32,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-23 07:02:32,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2018-11-23 07:02:32,312 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-23 07:02:32,312 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 07:02:32,343 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_41fa74fd-9363-45d7-8a52-1ec6664e35d5/bin-2019/uautomizer/witness.graphml [2018-11-23 07:02:32,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:02:32,344 INFO L168 Benchmark]: Toolchain (without parser) took 3984.62 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 330.3 MB). Free memory was 957.5 MB in the beginning and 1.0 GB in the end (delta: -91.3 MB). Peak memory consumption was 239.0 MB. Max. memory is 11.5 GB. [2018-11-23 07:02:32,345 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:02:32,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-11-23 07:02:32,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:02:32,346 INFO L168 Benchmark]: Boogie Preprocessor took 19.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:02:32,347 INFO L168 Benchmark]: RCFGBuilder took 345.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2018-11-23 07:02:32,347 INFO L168 Benchmark]: TraceAbstraction took 3167.91 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.8 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 36.4 MB). Peak memory consumption was 226.2 MB. Max. memory is 11.5 GB. [2018-11-23 07:02:32,347 INFO L168 Benchmark]: Witness Printer took 43.82 ms. Allocated memory is still 1.4 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-23 07:02:32,350 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 373.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 345.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3167.91 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.8 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 36.4 MB). Peak memory consumption was 226.2 MB. Max. memory is 11.5 GB. * Witness Printer took 43.82 ms. Allocated memory is still 1.4 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24 B). Peak memory consumption was 24 B. 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 9 procedures, 87 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 566 SDtfs, 883 SDslu, 1515 SDs, 0 SdLazy, 173 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13135occurred 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: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 25834 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...