./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/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 202bc01bb48234a1d40d76b97c20197b03b7a3c3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 06:45:43,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 06:45:43,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 06:45:43,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 06:45:43,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 06:45:43,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 06:45:43,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 06:45:43,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 06:45:43,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 06:45:43,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 06:45:43,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 06:45:43,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 06:45:43,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 06:45:43,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 06:45:43,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 06:45:43,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 06:45:43,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 06:45:43,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 06:45:43,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 06:45:43,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 06:45:43,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 06:45:43,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 06:45:43,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 06:45:43,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 06:45:43,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 06:45:43,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 06:45:43,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 06:45:43,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 06:45:43,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 06:45:43,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 06:45:43,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 06:45:43,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 06:45:43,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 06:45:43,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 06:45:43,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 06:45:43,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 06:45:43,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 06:45:43,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 06:45:43,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 06:45:43,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 06:45:43,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 06:45:43,548 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 06:45:43,578 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 06:45:43,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 06:45:43,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 06:45:43,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 06:45:43,580 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 06:45:43,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 06:45:43,580 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 06:45:43,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 06:45:43,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 06:45:43,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 06:45:43,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 06:45:43,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 06:45:43,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 06:45:43,581 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 06:45:43,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 06:45:43,582 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 06:45:43,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 06:45:43,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 06:45:43,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 06:45:43,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 06:45:43,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 06:45:43,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 06:45:43,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 06:45:43,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 06:45:43,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 06:45:43,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 06:45:43,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 06:45:43,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 06:45:43,585 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_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/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 -> 202bc01bb48234a1d40d76b97c20197b03b7a3c3 [2019-11-20 06:45:43,808 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 06:45:43,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 06:45:43,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 06:45:43,834 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 06:45:43,835 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 06:45:43,837 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc.i [2019-11-20 06:45:43,913 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/bin/uautomizer/data/67203061a/cd3b72ea30b544de92936fa5eb5a3dfc/FLAGf5278203f [2019-11-20 06:45:44,500 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 06:45:44,501 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc.i [2019-11-20 06:45:44,537 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/bin/uautomizer/data/67203061a/cd3b72ea30b544de92936fa5eb5a3dfc/FLAGf5278203f [2019-11-20 06:45:44,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/bin/uautomizer/data/67203061a/cd3b72ea30b544de92936fa5eb5a3dfc [2019-11-20 06:45:44,748 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 06:45:44,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 06:45:44,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 06:45:44,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 06:45:44,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 06:45:44,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:45:44" (1/1) ... [2019-11-20 06:45:44,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3e04a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:44, skipping insertion in model container [2019-11-20 06:45:44,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:45:44" (1/1) ... [2019-11-20 06:45:44,770 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 06:45:44,835 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 06:45:45,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:45:45,488 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 06:45:45,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:45:45,635 INFO L192 MainTranslator]: Completed translation [2019-11-20 06:45:45,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:45 WrapperNode [2019-11-20 06:45:45,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 06:45:45,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 06:45:45,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 06:45:45,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 06:45:45,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:45" (1/1) ... [2019-11-20 06:45:45,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:45" (1/1) ... [2019-11-20 06:45:45,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 06:45:45,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 06:45:45,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 06:45:45,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 06:45:45,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:45" (1/1) ... [2019-11-20 06:45:45,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:45" (1/1) ... [2019-11-20 06:45:45,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:45" (1/1) ... [2019-11-20 06:45:45,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:45" (1/1) ... [2019-11-20 06:45:45,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:45" (1/1) ... [2019-11-20 06:45:45,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:45" (1/1) ... [2019-11-20 06:45:45,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:45" (1/1) ... [2019-11-20 06:45:45,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 06:45:45,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 06:45:45,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 06:45:45,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 06:45:45,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/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 [2019-11-20 06:45:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 06:45:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 06:45:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 06:45:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 06:45:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 06:45:45,839 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 06:45:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 06:45:45,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 06:45:45,840 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-20 06:45:45,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-20 06:45:45,840 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-11-20 06:45:45,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-11-20 06:45:45,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 06:45:45,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 06:45:45,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 06:45:45,843 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 06:45:46,317 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 06:45:46,318 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 06:45:46,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:45:46 BoogieIcfgContainer [2019-11-20 06:45:46,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 06:45:46,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 06:45:46,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 06:45:46,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 06:45:46,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:45:44" (1/3) ... [2019-11-20 06:45:46,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ea01c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:45:46, skipping insertion in model container [2019-11-20 06:45:46,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:45" (2/3) ... [2019-11-20 06:45:46,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ea01c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:45:46, skipping insertion in model container [2019-11-20 06:45:46,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:45:46" (3/3) ... [2019-11-20 06:45:46,327 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc.i [2019-11-20 06:45:46,388 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,388 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,388 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,389 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,389 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,389 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,390 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,390 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,390 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,391 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,391 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,391 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,392 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork11_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,392 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork11_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,392 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork11_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,392 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork11_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,393 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork11_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,393 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork11_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,393 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,394 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,394 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,394 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,394 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,395 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,395 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,395 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,395 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,396 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,396 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,396 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,397 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,397 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,397 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,397 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,398 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,398 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,398 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork9_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,399 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork9_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,399 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork9_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,399 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork9_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,400 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork9_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,400 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork9_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,400 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,400 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,401 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,401 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,401 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,401 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,402 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,402 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,402 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,403 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,403 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,403 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,404 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,404 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,404 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,404 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,405 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,405 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,405 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,406 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,406 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,406 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,407 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,407 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,407 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork10_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,407 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork10_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,408 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork10_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,408 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork10_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,408 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork10_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,408 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork10_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:45:46,455 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 06:45:46,456 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 06:45:46,463 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 06:45:46,476 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 06:45:46,497 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 06:45:46,497 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 06:45:46,497 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 06:45:46,498 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 06:45:46,498 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 06:45:46,498 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 06:45:46,498 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 06:45:46,498 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 06:45:46,513 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 123 places, 95 transitions [2019-11-20 06:53:35,814 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 422275 states. [2019-11-20 06:53:35,816 INFO L276 IsEmpty]: Start isEmpty. Operand 422275 states. [2019-11-20 06:53:36,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-20 06:53:36,108 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:53:36,109 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:53:36,110 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:53:36,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:53:36,118 INFO L82 PathProgramCache]: Analyzing trace with hash 531103723, now seen corresponding path program 1 times [2019-11-20 06:53:36,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:53:36,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423241813] [2019-11-20 06:53:36,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:53:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:53:36,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:53:36,534 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423241813] [2019-11-20 06:53:36,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:53:36,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 06:53:36,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840998894] [2019-11-20 06:53:36,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 06:53:36,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:53:36,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 06:53:36,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 06:53:36,562 INFO L87 Difference]: Start difference. First operand 422275 states. Second operand 4 states. [2019-11-20 06:53:39,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:53:39,787 INFO L93 Difference]: Finished difference Result 441472 states and 1720515 transitions. [2019-11-20 06:53:39,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 06:53:39,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-11-20 06:53:39,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:53:43,282 INFO L225 Difference]: With dead ends: 441472 [2019-11-20 06:53:43,283 INFO L226 Difference]: Without dead ends: 172876 [2019-11-20 06:53:43,285 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 06:53:45,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172876 states. [2019-11-20 06:53:48,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172876 to 172876. [2019-11-20 06:53:48,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172876 states. [2019-11-20 06:53:49,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172876 states to 172876 states and 667758 transitions. [2019-11-20 06:53:49,836 INFO L78 Accepts]: Start accepts. Automaton has 172876 states and 667758 transitions. Word has length 38 [2019-11-20 06:53:49,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:53:49,838 INFO L462 AbstractCegarLoop]: Abstraction has 172876 states and 667758 transitions. [2019-11-20 06:53:49,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 06:53:49,838 INFO L276 IsEmpty]: Start isEmpty. Operand 172876 states and 667758 transitions. [2019-11-20 06:54:03,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 06:54:03,788 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:54:03,789 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:54:03,789 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:54:03,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:54:03,790 INFO L82 PathProgramCache]: Analyzing trace with hash 839877029, now seen corresponding path program 1 times [2019-11-20 06:54:03,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:54:03,790 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023129082] [2019-11-20 06:54:03,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:54:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:54:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:54:03,957 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023129082] [2019-11-20 06:54:03,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:54:03,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 06:54:03,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721727332] [2019-11-20 06:54:03,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 06:54:03,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:54:03,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 06:54:03,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 06:54:03,961 INFO L87 Difference]: Start difference. First operand 172876 states and 667758 transitions. Second operand 5 states. [2019-11-20 06:54:05,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:54:05,191 INFO L93 Difference]: Finished difference Result 186727 states and 698862 transitions. [2019-11-20 06:54:05,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 06:54:05,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2019-11-20 06:54:05,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:54:05,785 INFO L225 Difference]: With dead ends: 186727 [2019-11-20 06:54:05,786 INFO L226 Difference]: Without dead ends: 166072 [2019-11-20 06:54:05,787 INFO L630 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 [2019-11-20 06:54:07,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166072 states. [2019-11-20 06:54:12,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166072 to 166072. [2019-11-20 06:54:12,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166072 states. [2019-11-20 06:54:12,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166072 states to 166072 states and 636006 transitions. [2019-11-20 06:54:12,941 INFO L78 Accepts]: Start accepts. Automaton has 166072 states and 636006 transitions. Word has length 39 [2019-11-20 06:54:12,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:54:12,942 INFO L462 AbstractCegarLoop]: Abstraction has 166072 states and 636006 transitions. [2019-11-20 06:54:12,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 06:54:12,942 INFO L276 IsEmpty]: Start isEmpty. Operand 166072 states and 636006 transitions. [2019-11-20 06:54:13,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-20 06:54:13,113 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:54:13,114 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:54:13,114 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:54:13,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:54:13,115 INFO L82 PathProgramCache]: Analyzing trace with hash -938872865, now seen corresponding path program 1 times [2019-11-20 06:54:13,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:54:13,115 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835965632] [2019-11-20 06:54:13,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:54:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:54:13,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:54:13,269 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835965632] [2019-11-20 06:54:13,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:54:13,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 06:54:13,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694240454] [2019-11-20 06:54:13,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 06:54:13,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:54:13,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 06:54:13,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 06:54:13,272 INFO L87 Difference]: Start difference. First operand 166072 states and 636006 transitions. Second operand 6 states. [2019-11-20 06:54:14,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:54:14,252 INFO L93 Difference]: Finished difference Result 155137 states and 566022 transitions. [2019-11-20 06:54:14,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 06:54:14,253 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2019-11-20 06:54:14,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:54:14,674 INFO L225 Difference]: With dead ends: 155137 [2019-11-20 06:54:14,674 INFO L226 Difference]: Without dead ends: 135454 [2019-11-20 06:54:14,674 INFO L630 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 [2019-11-20 06:54:17,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135454 states. [2019-11-20 06:54:19,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135454 to 135454. [2019-11-20 06:54:19,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135454 states. [2019-11-20 06:54:22,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135454 states to 135454 states and 503328 transitions. [2019-11-20 06:54:22,410 INFO L78 Accepts]: Start accepts. Automaton has 135454 states and 503328 transitions. Word has length 40 [2019-11-20 06:54:22,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:54:22,411 INFO L462 AbstractCegarLoop]: Abstraction has 135454 states and 503328 transitions. [2019-11-20 06:54:22,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 06:54:22,412 INFO L276 IsEmpty]: Start isEmpty. Operand 135454 states and 503328 transitions. [2019-11-20 06:54:22,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-20 06:54:22,570 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:54:22,570 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:54:22,571 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:54:22,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:54:22,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1407289202, now seen corresponding path program 1 times [2019-11-20 06:54:22,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:54:22,572 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623333006] [2019-11-20 06:54:22,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:54:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:54:22,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:54:22,748 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623333006] [2019-11-20 06:54:22,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:54:22,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 06:54:22,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656067075] [2019-11-20 06:54:22,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 06:54:22,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:54:22,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 06:54:22,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 06:54:22,750 INFO L87 Difference]: Start difference. First operand 135454 states and 503328 transitions. Second operand 7 states. [2019-11-20 06:54:23,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:54:23,696 INFO L93 Difference]: Finished difference Result 89527 states and 310872 transitions. [2019-11-20 06:54:23,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 06:54:23,696 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2019-11-20 06:54:23,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:54:23,910 INFO L225 Difference]: With dead ends: 89527 [2019-11-20 06:54:23,911 INFO L226 Difference]: Without dead ends: 74218 [2019-11-20 06:54:23,911 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-11-20 06:54:24,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74218 states. [2019-11-20 06:54:26,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74218 to 74218. [2019-11-20 06:54:26,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74218 states. [2019-11-20 06:54:27,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74218 states to 74218 states and 258384 transitions. [2019-11-20 06:54:27,037 INFO L78 Accepts]: Start accepts. Automaton has 74218 states and 258384 transitions. Word has length 41 [2019-11-20 06:54:27,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:54:27,038 INFO L462 AbstractCegarLoop]: Abstraction has 74218 states and 258384 transitions. [2019-11-20 06:54:27,038 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 06:54:27,038 INFO L276 IsEmpty]: Start isEmpty. Operand 74218 states and 258384 transitions. [2019-11-20 06:54:27,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-20 06:54:27,108 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:54:27,108 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:54:27,108 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:54:27,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:54:27,109 INFO L82 PathProgramCache]: Analyzing trace with hash 2033033507, now seen corresponding path program 1 times [2019-11-20 06:54:27,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:54:27,110 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648661054] [2019-11-20 06:54:27,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:54:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:54:27,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:54:27,379 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648661054] [2019-11-20 06:54:27,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:54:27,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 06:54:27,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203452095] [2019-11-20 06:54:27,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 06:54:27,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:54:27,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 06:54:27,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 06:54:27,381 INFO L87 Difference]: Start difference. First operand 74218 states and 258384 transitions. Second operand 8 states. [2019-11-20 06:54:28,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:54:28,132 INFO L93 Difference]: Finished difference Result 118687 states and 411717 transitions. [2019-11-20 06:54:28,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 06:54:28,133 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-11-20 06:54:28,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:54:28,283 INFO L225 Difference]: With dead ends: 118687 [2019-11-20 06:54:28,284 INFO L226 Difference]: Without dead ends: 64678 [2019-11-20 06:54:28,284 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-20 06:54:28,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64678 states. [2019-11-20 06:54:30,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64678 to 64678. [2019-11-20 06:54:30,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64678 states. [2019-11-20 06:54:30,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64678 states to 64678 states and 222546 transitions. [2019-11-20 06:54:30,770 INFO L78 Accepts]: Start accepts. Automaton has 64678 states and 222546 transitions. Word has length 42 [2019-11-20 06:54:30,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:54:30,771 INFO L462 AbstractCegarLoop]: Abstraction has 64678 states and 222546 transitions. [2019-11-20 06:54:30,771 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 06:54:30,771 INFO L276 IsEmpty]: Start isEmpty. Operand 64678 states and 222546 transitions. [2019-11-20 06:54:30,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-20 06:54:30,825 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:54:30,825 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:54:30,825 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:54:30,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:54:30,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1371030801, now seen corresponding path program 2 times [2019-11-20 06:54:30,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:54:30,827 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041224406] [2019-11-20 06:54:30,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:54:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:54:31,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:54:31,065 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041224406] [2019-11-20 06:54:31,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:54:31,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 06:54:31,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172249436] [2019-11-20 06:54:31,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 06:54:31,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:54:31,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 06:54:31,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 06:54:31,067 INFO L87 Difference]: Start difference. First operand 64678 states and 222546 transitions. Second operand 8 states. [2019-11-20 06:54:31,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:54:31,715 INFO L93 Difference]: Finished difference Result 107932 states and 371343 transitions. [2019-11-20 06:54:31,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 06:54:31,715 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-11-20 06:54:31,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:54:31,856 INFO L225 Difference]: With dead ends: 107932 [2019-11-20 06:54:31,856 INFO L226 Difference]: Without dead ends: 61195 [2019-11-20 06:54:31,857 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-20 06:54:32,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61195 states. [2019-11-20 06:54:33,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61195 to 61195. [2019-11-20 06:54:33,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61195 states. [2019-11-20 06:54:33,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61195 states to 61195 states and 210720 transitions. [2019-11-20 06:54:33,254 INFO L78 Accepts]: Start accepts. Automaton has 61195 states and 210720 transitions. Word has length 42 [2019-11-20 06:54:33,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:54:33,255 INFO L462 AbstractCegarLoop]: Abstraction has 61195 states and 210720 transitions. [2019-11-20 06:54:33,255 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 06:54:33,255 INFO L276 IsEmpty]: Start isEmpty. Operand 61195 states and 210720 transitions. [2019-11-20 06:54:33,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-20 06:54:33,305 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:54:33,305 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:54:33,306 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:54:33,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:54:33,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1985811773, now seen corresponding path program 3 times [2019-11-20 06:54:33,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:54:33,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076105589] [2019-11-20 06:54:33,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:54:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:54:34,241 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2019-11-20 06:54:34,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:54:34,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076105589] [2019-11-20 06:54:34,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:54:34,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 06:54:34,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003931324] [2019-11-20 06:54:34,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 06:54:34,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:54:34,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 06:54:34,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 06:54:34,275 INFO L87 Difference]: Start difference. First operand 61195 states and 210720 transitions. Second operand 8 states. [2019-11-20 06:54:34,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:54:34,896 INFO L93 Difference]: Finished difference Result 102748 states and 355062 transitions. [2019-11-20 06:54:34,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 06:54:34,897 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-11-20 06:54:34,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:54:35,041 INFO L225 Difference]: With dead ends: 102748 [2019-11-20 06:54:35,041 INFO L226 Difference]: Without dead ends: 55903 [2019-11-20 06:54:35,042 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-20 06:54:35,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55903 states. [2019-11-20 06:54:36,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55903 to 55903. [2019-11-20 06:54:36,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55903 states. [2019-11-20 06:54:36,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55903 states to 55903 states and 194898 transitions. [2019-11-20 06:54:36,428 INFO L78 Accepts]: Start accepts. Automaton has 55903 states and 194898 transitions. Word has length 42 [2019-11-20 06:54:36,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:54:36,429 INFO L462 AbstractCegarLoop]: Abstraction has 55903 states and 194898 transitions. [2019-11-20 06:54:36,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 06:54:36,429 INFO L276 IsEmpty]: Start isEmpty. Operand 55903 states and 194898 transitions. [2019-11-20 06:54:36,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-20 06:54:36,476 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:54:36,477 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:54:36,477 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:54:36,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:54:36,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1159728957, now seen corresponding path program 4 times [2019-11-20 06:54:36,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:54:36,478 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969081001] [2019-11-20 06:54:36,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:54:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:54:36,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:54:36,617 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969081001] [2019-11-20 06:54:36,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:54:36,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 06:54:36,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836994033] [2019-11-20 06:54:36,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 06:54:36,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:54:36,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 06:54:36,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 06:54:36,622 INFO L87 Difference]: Start difference. First operand 55903 states and 194898 transitions. Second operand 7 states. [2019-11-20 06:54:36,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:54:36,923 INFO L93 Difference]: Finished difference Result 42781 states and 146784 transitions. [2019-11-20 06:54:36,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 06:54:36,924 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2019-11-20 06:54:36,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:54:36,924 INFO L225 Difference]: With dead ends: 42781 [2019-11-20 06:54:36,924 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 06:54:36,925 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-20 06:54:36,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 06:54:36,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 06:54:36,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 06:54:36,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 06:54:36,926 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2019-11-20 06:54:36,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:54:36,927 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 06:54:36,927 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 06:54:36,927 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 06:54:36,927 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 06:54:36,931 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 06:54:36,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:54:36 BasicIcfg [2019-11-20 06:54:36,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 06:54:36,935 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 06:54:36,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 06:54:36,935 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 06:54:36,936 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:45:46" (3/4) ... [2019-11-20 06:54:36,942 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 06:54:36,960 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 06:54:36,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 06:54:36,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-20 06:54:36,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-11-20 06:54:36,975 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-20 06:54:36,978 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 06:54:36,979 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 06:54:37,055 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4e4db74f-c0c1-4c8b-8f3b-59d10d2e82cc/bin/uautomizer/witness.graphml [2019-11-20 06:54:37,055 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 06:54:37,064 INFO L168 Benchmark]: Toolchain (without parser) took 532307.35 ms. Allocated memory was 1.0 GB in the beginning and 6.6 GB in the end (delta: 5.6 GB). Free memory was 946.1 MB in the beginning and 2.9 GB in the end (delta: -2.0 GB). Peak memory consumption was 3.6 GB. Max. memory is 11.5 GB. [2019-11-20 06:54:37,068 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:54:37,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 882.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -196.9 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-11-20 06:54:37,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:54:37,069 INFO L168 Benchmark]: Boogie Preprocessor took 39.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:54:37,070 INFO L168 Benchmark]: RCFGBuilder took 563.55 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: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. [2019-11-20 06:54:37,070 INFO L168 Benchmark]: TraceAbstraction took 530613.24 ms. Allocated memory was 1.2 GB in the beginning and 6.6 GB in the end (delta: 5.4 GB). Free memory was 1.1 GB in the beginning and 3.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.5 GB. Max. memory is 11.5 GB. [2019-11-20 06:54:37,071 INFO L168 Benchmark]: Witness Printer took 120.74 ms. Allocated memory is still 6.6 GB. Free memory was 3.0 GB in the beginning and 2.9 GB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 11.5 GB. [2019-11-20 06:54:37,074 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 882.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -196.9 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.67 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 563.55 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: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 530613.24 ms. Allocated memory was 1.2 GB in the beginning and 6.6 GB in the end (delta: 5.4 GB). Free memory was 1.1 GB in the beginning and 3.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.5 GB. Max. memory is 11.5 GB. * Witness Printer took 120.74 ms. Allocated memory is still 6.6 GB. Free memory was 3.0 GB in the beginning and 2.9 GB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 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 17 procedures, 115 locations, 1 error locations. Result: SAFE, OverallTime: 530.4s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 878 SDtfs, 2019 SDslu, 2448 SDs, 0 SdLazy, 350 SolverSat, 274 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=422275occurred 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: 29.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 40186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...