./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe025_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe025_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/bin/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 abb05aee2137443f896173abc10c8417548e4b1b ................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:00:02,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:00:02,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:00:02,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:00:02,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:00:02,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:00:02,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:00:02,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:00:02,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:00:02,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:00:02,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:00:02,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:00:02,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:00:02,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:00:02,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:00:02,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:00:02,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:00:02,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:00:02,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:00:02,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:00:02,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:00:02,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:00:02,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:00:02,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:00:02,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:00:02,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:00:02,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:00:02,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:00:02,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:00:02,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:00:02,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:00:02,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:00:02,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:00:02,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:00:02,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:00:02,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:00:02,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:00:02,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:00:02,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:00:02,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:00:02,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:00:02,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:00:02,702 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:00:02,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:00:02,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:00:02,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:00:02,704 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:00:02,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:00:02,705 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:00:02,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:00:02,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:00:02,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:00:02,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:00:02,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:00:02,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:00:02,707 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:00:02,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:00:02,707 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:00:02,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:00:02,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:00:02,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:00:02,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:00:02,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:00:02,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:00:02,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:00:02,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:00:02,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:00:02,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:00:02,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:00:02,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:00:02,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/bin/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 -> abb05aee2137443f896173abc10c8417548e4b1b [2019-11-15 20:00:02,743 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:00:02,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:00:02,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:00:02,761 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:00:02,761 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:00:02,762 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe025_pso.opt.i [2019-11-15 20:00:02,824 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/bin/uautomizer/data/4f895922f/089639a6f5cc4e3ea9aa9998a116dfa3/FLAGe2444b2e6 [2019-11-15 20:00:03,326 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:00:03,327 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/sv-benchmarks/c/pthread-wmm/safe025_pso.opt.i [2019-11-15 20:00:03,346 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/bin/uautomizer/data/4f895922f/089639a6f5cc4e3ea9aa9998a116dfa3/FLAGe2444b2e6 [2019-11-15 20:00:03,653 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/bin/uautomizer/data/4f895922f/089639a6f5cc4e3ea9aa9998a116dfa3 [2019-11-15 20:00:03,656 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:00:03,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:00:03,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:00:03,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:00:03,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:00:03,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:00:03" (1/1) ... [2019-11-15 20:00:03,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d4065d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:00:03, skipping insertion in model container [2019-11-15 20:00:03,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:00:03" (1/1) ... [2019-11-15 20:00:03,677 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:00:03,738 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:00:04,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:00:04,270 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:00:04,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:00:04,408 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:00:04,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:00:04 WrapperNode [2019-11-15 20:00:04,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:00:04,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:00:04,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:00:04,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:00:04,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:00:04" (1/1) ... [2019-11-15 20:00:04,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:00:04" (1/1) ... [2019-11-15 20:00:04,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:00:04,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:00:04,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:00:04,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:00:04,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:00:04" (1/1) ... [2019-11-15 20:00:04,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:00:04" (1/1) ... [2019-11-15 20:00:04,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:00:04" (1/1) ... [2019-11-15 20:00:04,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:00:04" (1/1) ... [2019-11-15 20:00:04,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:00:04" (1/1) ... [2019-11-15 20:00:04,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:00:04" (1/1) ... [2019-11-15 20:00:04,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:00:04" (1/1) ... [2019-11-15 20:00:04,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:00:04,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:00:04,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:00:04,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:00:04,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:00:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/bin/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 [2019-11-15 20:00:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:00:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 20:00:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:00:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:00:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 20:00:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 20:00:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 20:00:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 20:00:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-15 20:00:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-15 20:00:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 20:00:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:00:04,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:00:04,605 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-15 20:00:05,153 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:00:05,153 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 20:00:05,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:00:05 BoogieIcfgContainer [2019-11-15 20:00:05,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:00:05,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:00:05,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:00:05,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:00:05,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:00:03" (1/3) ... [2019-11-15 20:00:05,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c33c8c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:00:05, skipping insertion in model container [2019-11-15 20:00:05,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:00:04" (2/3) ... [2019-11-15 20:00:05,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c33c8c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:00:05, skipping insertion in model container [2019-11-15 20:00:05,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:00:05" (3/3) ... [2019-11-15 20:00:05,169 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_pso.opt.i [2019-11-15 20:00:05,218 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,218 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,219 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,219 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,219 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,219 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,221 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,221 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,221 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,221 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,222 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,222 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,223 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,223 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,223 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,224 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,224 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,224 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:00:05,237 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 20:00:05,237 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:00:05,248 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:00:05,262 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:00:05,289 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:00:05,289 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:00:05,289 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:00:05,290 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:00:05,290 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:00:05,291 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:00:05,291 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:00:05,291 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:00:05,305 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 50 transitions [2019-11-15 20:00:05,443 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-11-15 20:00:05,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-11-15 20:00:05,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 20:00:05,475 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:00:05,477 INFO L380 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] [2019-11-15 20:00:05,479 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:00:05,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:00:05,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1842840898, now seen corresponding path program 1 times [2019-11-15 20:00:05,495 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:00:05,496 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259419287] [2019-11-15 20:00:05,496 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:00:05,496 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:00:05,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:00:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:00:05,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:00:05,885 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259419287] [2019-11-15 20:00:05,886 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:00:05,887 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:00:05,887 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863676067] [2019-11-15 20:00:05,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 20:00:05,892 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:00:05,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:00:05,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:00:05,912 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-11-15 20:00:06,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:00:06,054 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-11-15 20:00:06,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 20:00:06,056 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-15 20:00:06,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:00:06,083 INFO L225 Difference]: With dead ends: 1294 [2019-11-15 20:00:06,084 INFO L226 Difference]: Without dead ends: 600 [2019-11-15 20:00:06,085 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:00:06,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-15 20:00:06,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-11-15 20:00:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-11-15 20:00:06,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-11-15 20:00:06,212 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-11-15 20:00:06,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:00:06,213 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-11-15 20:00:06,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 20:00:06,213 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-11-15 20:00:06,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 20:00:06,218 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:00:06,218 INFO L380 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] [2019-11-15 20:00:06,218 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:00:06,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:00:06,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1602831640, now seen corresponding path program 1 times [2019-11-15 20:00:06,219 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:00:06,220 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613576578] [2019-11-15 20:00:06,220 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:00:06,220 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:00:06,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:00:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:00:06,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:00:06,449 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613576578] [2019-11-15 20:00:06,450 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:00:06,450 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:00:06,450 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581253575] [2019-11-15 20:00:06,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:00:06,452 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:00:06,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:00:06,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:00:06,453 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-11-15 20:00:06,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:00:06,554 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-11-15 20:00:06,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:00:06,555 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-15 20:00:06,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:00:06,562 INFO L225 Difference]: With dead ends: 600 [2019-11-15 20:00:06,562 INFO L226 Difference]: Without dead ends: 537 [2019-11-15 20:00:06,563 INFO L600 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 [2019-11-15 20:00:06,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-11-15 20:00:06,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-11-15 20:00:06,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-15 20:00:06,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-11-15 20:00:06,604 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-11-15 20:00:06,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:00:06,605 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-11-15 20:00:06,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:00:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-11-15 20:00:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-15 20:00:06,609 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:00:06,609 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:00:06,609 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:00:06,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:00:06,610 INFO L82 PathProgramCache]: Analyzing trace with hash 885551816, now seen corresponding path program 1 times [2019-11-15 20:00:06,610 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:00:06,610 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560420303] [2019-11-15 20:00:06,610 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:00:06,610 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:00:06,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:00:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:00:06,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:00:06,819 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560420303] [2019-11-15 20:00:06,819 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:00:06,819 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 20:00:06,820 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329148093] [2019-11-15 20:00:06,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 20:00:06,821 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:00:06,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 20:00:06,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:00:06,821 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-11-15 20:00:07,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:00:07,093 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-11-15 20:00:07,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 20:00:07,094 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-15 20:00:07,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:00:07,098 INFO L225 Difference]: With dead ends: 402 [2019-11-15 20:00:07,098 INFO L226 Difference]: Without dead ends: 348 [2019-11-15 20:00:07,099 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-15 20:00:07,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-15 20:00:07,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-11-15 20:00:07,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-15 20:00:07,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-11-15 20:00:07,123 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-11-15 20:00:07,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:00:07,124 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-11-15 20:00:07,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 20:00:07,125 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-11-15 20:00:07,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 20:00:07,129 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:00:07,129 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:00:07,130 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:00:07,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:00:07,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1058177461, now seen corresponding path program 1 times [2019-11-15 20:00:07,131 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:00:07,131 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712519367] [2019-11-15 20:00:07,131 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:00:07,132 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:00:07,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:00:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:00:07,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:00:07,353 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712519367] [2019-11-15 20:00:07,353 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:00:07,353 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 20:00:07,354 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028978763] [2019-11-15 20:00:07,354 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 20:00:07,355 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:00:07,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 20:00:07,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 20:00:07,356 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 8 states. [2019-11-15 20:00:07,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:00:07,675 INFO L93 Difference]: Finished difference Result 681 states and 1853 transitions. [2019-11-15 20:00:07,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 20:00:07,676 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-11-15 20:00:07,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:00:07,680 INFO L225 Difference]: With dead ends: 681 [2019-11-15 20:00:07,680 INFO L226 Difference]: Without dead ends: 327 [2019-11-15 20:00:07,682 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-11-15 20:00:07,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2019-11-15 20:00:07,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2019-11-15 20:00:07,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2019-11-15 20:00:07,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 857 transitions. [2019-11-15 20:00:07,699 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 857 transitions. Word has length 33 [2019-11-15 20:00:07,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:00:07,699 INFO L462 AbstractCegarLoop]: Abstraction has 327 states and 857 transitions. [2019-11-15 20:00:07,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 20:00:07,700 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 857 transitions. [2019-11-15 20:00:07,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 20:00:07,703 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:00:07,703 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:00:07,703 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:00:07,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:00:07,704 INFO L82 PathProgramCache]: Analyzing trace with hash 2043326107, now seen corresponding path program 2 times [2019-11-15 20:00:07,704 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:00:07,704 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689053664] [2019-11-15 20:00:07,705 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:00:07,705 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:00:07,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:00:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:00:07,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:00:07,911 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689053664] [2019-11-15 20:00:07,912 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:00:07,912 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 20:00:07,912 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510194663] [2019-11-15 20:00:07,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 20:00:07,913 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:00:07,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 20:00:07,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 20:00:07,914 INFO L87 Difference]: Start difference. First operand 327 states and 857 transitions. Second operand 7 states. [2019-11-15 20:00:08,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:00:08,066 INFO L93 Difference]: Finished difference Result 273 states and 695 transitions. [2019-11-15 20:00:08,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 20:00:08,067 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-15 20:00:08,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:00:08,067 INFO L225 Difference]: With dead ends: 273 [2019-11-15 20:00:08,068 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 20:00:08,068 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-15 20:00:08,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 20:00:08,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 20:00:08,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 20:00:08,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 20:00:08,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-15 20:00:08,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:00:08,071 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:00:08,072 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 20:00:08,074 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:00:08,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 20:00:08,078 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 20:00:08,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:00:08 BasicIcfg [2019-11-15 20:00:08,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:00:08,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:00:08,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:00:08,086 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:00:08,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:00:05" (3/4) ... [2019-11-15 20:00:08,092 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 20:00:08,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 20:00:08,102 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 20:00:08,114 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-15 20:00:08,121 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-15 20:00:08,122 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 20:00:08,200 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_23bf054b-6768-462a-9540-70f8794e190f/bin/uautomizer/witness.graphml [2019-11-15 20:00:08,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:00:08,203 INFO L168 Benchmark]: Toolchain (without parser) took 4544.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 947.3 MB in the beginning and 895.3 MB in the end (delta: 52.0 MB). Peak memory consumption was 199.3 MB. Max. memory is 11.5 GB. [2019-11-15 20:00:08,204 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:00:08,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -169.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:00:08,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.02 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:00:08,206 INFO L168 Benchmark]: Boogie Preprocessor took 32.35 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-15 20:00:08,207 INFO L168 Benchmark]: RCFGBuilder took 658.77 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:00:08,207 INFO L168 Benchmark]: TraceAbstraction took 2928.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 898.0 MB in the end (delta: 189.3 MB). Peak memory consumption was 189.3 MB. Max. memory is 11.5 GB. [2019-11-15 20:00:08,208 INFO L168 Benchmark]: Witness Printer took 115.29 ms. Allocated memory is still 1.2 GB. Free memory was 898.0 MB in the beginning and 895.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:00:08,211 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 750.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -169.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.02 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.35 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 658.77 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2928.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 898.0 MB in the end (delta: 189.3 MB). Peak memory consumption was 189.3 MB. Max. memory is 11.5 GB. * Witness Printer took 115.29 ms. Allocated memory is still 1.2 GB. Free memory was 898.0 MB in the beginning and 895.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 65 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 233 SDtfs, 350 SDslu, 623 SDs, 0 SdLazy, 91 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 14030 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...