./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/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 a75fae05219b8dc129ce0de9eab72445d562eb07 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:56:28,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:56:28,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:56:28,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:56:28,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:56:28,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:56:28,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:56:28,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:56:28,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:56:28,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:56:28,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:56:28,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:56:28,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:56:28,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:56:28,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:56:28,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:56:28,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:56:28,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:56:28,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:56:28,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:56:28,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:56:28,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:56:28,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:56:28,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:56:28,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:56:28,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:56:28,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:56:28,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:56:28,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:56:28,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:56:28,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:56:28,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:56:28,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:56:28,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:56:28,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:56:28,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:56:28,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:56:28,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:56:28,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:56:28,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:56:28,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:56:28,719 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:56:28,743 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:56:28,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:56:28,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:56:28,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:56:28,754 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:56:28,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:56:28,755 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:56:28,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:56:28,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:56:28,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:56:28,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:56:28,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:56:28,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:56:28,756 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:56:28,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:56:28,757 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:56:28,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:56:28,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:56:28,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:56:28,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:56:28,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:56:28,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:56:28,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:56:28,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:56:28,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:56:28,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:56:28,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:56:28,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:56:28,761 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_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/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 -> a75fae05219b8dc129ce0de9eab72445d562eb07 [2019-11-25 08:56:28,892 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:56:28,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:56:28,904 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:56:28,906 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:56:28,906 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:56:28,907 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe027_tso.opt.i [2019-11-25 08:56:28,953 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/bin/uautomizer/data/84c6f6326/60b0cbc8f2ba483990072433783b95ac/FLAG9b22571ea [2019-11-25 08:56:29,409 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:56:29,410 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/sv-benchmarks/c/pthread-wmm/safe027_tso.opt.i [2019-11-25 08:56:29,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/bin/uautomizer/data/84c6f6326/60b0cbc8f2ba483990072433783b95ac/FLAG9b22571ea [2019-11-25 08:56:29,433 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/bin/uautomizer/data/84c6f6326/60b0cbc8f2ba483990072433783b95ac [2019-11-25 08:56:29,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:56:29,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:56:29,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:29,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:56:29,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:56:29,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af48f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29, skipping insertion in model container [2019-11-25 08:56:29,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:56:29,489 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:56:29,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:29,951 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:56:29,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:30,054 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:56:30,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30 WrapperNode [2019-11-25 08:56:30,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:30,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:30,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:56:30,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:56:30,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:30,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:56:30,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:56:30,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:56:30,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:56:30,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:56:30,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:56:30,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:56:30,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/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 [2019-11-25 08:56:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:56:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:56:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:56:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:56:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:56:30,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:56:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:56:30,183 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:56:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-25 08:56:30,183 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-25 08:56:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-11-25 08:56:30,185 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-11-25 08:56:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:56:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:56:30,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:56:30,188 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:56:30,489 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:56:30,489 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:56:30,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:30 BoogieIcfgContainer [2019-11-25 08:56:30,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:56:30,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:56:30,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:56:30,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:56:30,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:56:29" (1/3) ... [2019-11-25 08:56:30,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49687178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:30, skipping insertion in model container [2019-11-25 08:56:30,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (2/3) ... [2019-11-25 08:56:30,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49687178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:30, skipping insertion in model container [2019-11-25 08:56:30,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:30" (3/3) ... [2019-11-25 08:56:30,503 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2019-11-25 08:56:30,600 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,601 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,601 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,601 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,602 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,602 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,604 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,604 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,605 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,605 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,605 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,605 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,606 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,606 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,606 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,608 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,609 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,609 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,610 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,612 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,613 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,613 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,613 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,613 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,614 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,614 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,614 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,614 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,615 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,615 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,615 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,616 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,616 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,616 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,617 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,617 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,618 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,618 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,619 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,619 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,619 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,619 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,621 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,621 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,621 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,622 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,622 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,622 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,622 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,623 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,623 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,623 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,624 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,624 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,624 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,624 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,624 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,625 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,625 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,625 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,625 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,626 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,626 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,626 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,626 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,627 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,627 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,627 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,628 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,628 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,628 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,629 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:30,676 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:56:30,676 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:56:30,683 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:56:30,693 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:56:30,714 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:56:30,714 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:56:30,714 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:56:30,714 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:56:30,714 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:56:30,715 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:56:30,715 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:56:30,715 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:56:30,734 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 121 places, 93 transitions [2019-11-25 08:56:31,358 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5473 states. [2019-11-25 08:56:31,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states. [2019-11-25 08:56:31,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-25 08:56:31,391 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:31,392 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] [2019-11-25 08:56:31,393 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:31,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:31,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1039628048, now seen corresponding path program 1 times [2019-11-25 08:56:31,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:31,408 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515178028] [2019-11-25 08:56:31,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:31,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:31,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515178028] [2019-11-25 08:56:31,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:31,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:56:31,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506792032] [2019-11-25 08:56:31,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:56:31,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:31,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:56:31,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:56:31,828 INFO L87 Difference]: Start difference. First operand 5473 states. Second operand 4 states. [2019-11-25 08:56:32,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:32,012 INFO L93 Difference]: Finished difference Result 5710 states and 21935 transitions. [2019-11-25 08:56:32,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:56:32,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-11-25 08:56:32,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:32,073 INFO L225 Difference]: With dead ends: 5710 [2019-11-25 08:56:32,073 INFO L226 Difference]: Without dead ends: 2394 [2019-11-25 08:56:32,075 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 [2019-11-25 08:56:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2019-11-25 08:56:32,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2394. [2019-11-25 08:56:32,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2394 states. [2019-11-25 08:56:32,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 8938 transitions. [2019-11-25 08:56:32,290 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 8938 transitions. Word has length 36 [2019-11-25 08:56:32,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:32,291 INFO L462 AbstractCegarLoop]: Abstraction has 2394 states and 8938 transitions. [2019-11-25 08:56:32,291 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:56:32,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 8938 transitions. [2019-11-25 08:56:32,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-25 08:56:32,298 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:32,298 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] [2019-11-25 08:56:32,298 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:32,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:32,299 INFO L82 PathProgramCache]: Analyzing trace with hash 870944544, now seen corresponding path program 1 times [2019-11-25 08:56:32,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:32,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385518212] [2019-11-25 08:56:32,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:32,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:32,454 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385518212] [2019-11-25 08:56:32,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:32,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:56:32,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258013004] [2019-11-25 08:56:32,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:56:32,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:32,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:56:32,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:56:32,457 INFO L87 Difference]: Start difference. First operand 2394 states and 8938 transitions. Second operand 5 states. [2019-11-25 08:56:32,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:32,632 INFO L93 Difference]: Finished difference Result 2565 states and 9322 transitions. [2019-11-25 08:56:32,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:56:32,634 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-11-25 08:56:32,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:32,656 INFO L225 Difference]: With dead ends: 2565 [2019-11-25 08:56:32,657 INFO L226 Difference]: Without dead ends: 2310 [2019-11-25 08:56:32,657 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 [2019-11-25 08:56:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2019-11-25 08:56:32,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2310. [2019-11-25 08:56:32,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2310 states. [2019-11-25 08:56:32,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 8546 transitions. [2019-11-25 08:56:32,752 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 8546 transitions. Word has length 37 [2019-11-25 08:56:32,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:32,753 INFO L462 AbstractCegarLoop]: Abstraction has 2310 states and 8546 transitions. [2019-11-25 08:56:32,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:56:32,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 8546 transitions. [2019-11-25 08:56:32,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:56:32,758 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:32,758 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] [2019-11-25 08:56:32,758 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:32,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:32,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1824304209, now seen corresponding path program 1 times [2019-11-25 08:56:32,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:32,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605927169] [2019-11-25 08:56:32,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:32,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:32,874 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605927169] [2019-11-25 08:56:32,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:32,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:56:32,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755593406] [2019-11-25 08:56:32,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:56:32,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:32,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:56:32,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:56:32,875 INFO L87 Difference]: Start difference. First operand 2310 states and 8546 transitions. Second operand 6 states. [2019-11-25 08:56:32,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:32,997 INFO L93 Difference]: Finished difference Result 2175 states and 7682 transitions. [2019-11-25 08:56:32,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:56:32,998 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-11-25 08:56:32,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:33,015 INFO L225 Difference]: With dead ends: 2175 [2019-11-25 08:56:33,015 INFO L226 Difference]: Without dead ends: 1932 [2019-11-25 08:56:33,016 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 [2019-11-25 08:56:33,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2019-11-25 08:56:33,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1932. [2019-11-25 08:56:33,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2019-11-25 08:56:33,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 6908 transitions. [2019-11-25 08:56:33,093 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 6908 transitions. Word has length 38 [2019-11-25 08:56:33,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:33,093 INFO L462 AbstractCegarLoop]: Abstraction has 1932 states and 6908 transitions. [2019-11-25 08:56:33,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:56:33,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 6908 transitions. [2019-11-25 08:56:33,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-25 08:56:33,101 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:33,101 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] [2019-11-25 08:56:33,101 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:33,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:33,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1785519601, now seen corresponding path program 1 times [2019-11-25 08:56:33,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:33,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457592773] [2019-11-25 08:56:33,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:33,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:33,212 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457592773] [2019-11-25 08:56:33,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:33,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:56:33,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037505017] [2019-11-25 08:56:33,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:56:33,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:33,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:56:33,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:56:33,213 INFO L87 Difference]: Start difference. First operand 1932 states and 6908 transitions. Second operand 7 states. [2019-11-25 08:56:33,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:33,348 INFO L93 Difference]: Finished difference Result 1365 states and 4532 transitions. [2019-11-25 08:56:33,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:56:33,348 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-11-25 08:56:33,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:33,359 INFO L225 Difference]: With dead ends: 1365 [2019-11-25 08:56:33,362 INFO L226 Difference]: Without dead ends: 1176 [2019-11-25 08:56:33,363 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:56:33,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2019-11-25 08:56:33,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1176. [2019-11-25 08:56:33,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1176 states. [2019-11-25 08:56:33,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 3884 transitions. [2019-11-25 08:56:33,403 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 3884 transitions. Word has length 39 [2019-11-25 08:56:33,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:33,405 INFO L462 AbstractCegarLoop]: Abstraction has 1176 states and 3884 transitions. [2019-11-25 08:56:33,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:56:33,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 3884 transitions. [2019-11-25 08:56:33,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-25 08:56:33,409 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:33,409 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] [2019-11-25 08:56:33,410 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:33,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:33,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1731441706, now seen corresponding path program 1 times [2019-11-25 08:56:33,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:33,411 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37143376] [2019-11-25 08:56:33,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:33,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:33,596 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37143376] [2019-11-25 08:56:33,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:33,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:56:33,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853883085] [2019-11-25 08:56:33,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:56:33,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:33,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:56:33,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:56:33,599 INFO L87 Difference]: Start difference. First operand 1176 states and 3884 transitions. Second operand 8 states. [2019-11-25 08:56:33,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:33,732 INFO L93 Difference]: Finished difference Result 1725 states and 5777 transitions. [2019-11-25 08:56:33,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:56:33,733 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2019-11-25 08:56:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:33,740 INFO L225 Difference]: With dead ends: 1725 [2019-11-25 08:56:33,741 INFO L226 Difference]: Without dead ends: 876 [2019-11-25 08:56:33,742 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 [2019-11-25 08:56:33,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2019-11-25 08:56:33,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2019-11-25 08:56:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-11-25 08:56:33,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2888 transitions. [2019-11-25 08:56:33,769 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2888 transitions. Word has length 40 [2019-11-25 08:56:33,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:33,769 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 2888 transitions. [2019-11-25 08:56:33,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:56:33,769 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2888 transitions. [2019-11-25 08:56:33,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-25 08:56:33,771 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:33,772 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] [2019-11-25 08:56:33,772 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:33,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:33,772 INFO L82 PathProgramCache]: Analyzing trace with hash 502627164, now seen corresponding path program 2 times [2019-11-25 08:56:33,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:33,773 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303693974] [2019-11-25 08:56:33,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:33,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:33,910 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303693974] [2019-11-25 08:56:33,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:33,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:56:33,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468647835] [2019-11-25 08:56:33,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:56:33,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:33,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:56:33,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:56:33,912 INFO L87 Difference]: Start difference. First operand 876 states and 2888 transitions. Second operand 7 states. [2019-11-25 08:56:34,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:34,030 INFO L93 Difference]: Finished difference Result 1389 states and 4670 transitions. [2019-11-25 08:56:34,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:56:34,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-11-25 08:56:34,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:34,037 INFO L225 Difference]: With dead ends: 1389 [2019-11-25 08:56:34,037 INFO L226 Difference]: Without dead ends: 768 [2019-11-25 08:56:34,038 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:56:34,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2019-11-25 08:56:34,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 768. [2019-11-25 08:56:34,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-11-25 08:56:34,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 2576 transitions. [2019-11-25 08:56:34,063 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 2576 transitions. Word has length 40 [2019-11-25 08:56:34,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:34,065 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 2576 transitions. [2019-11-25 08:56:34,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:56:34,065 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 2576 transitions. [2019-11-25 08:56:34,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-25 08:56:34,068 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:34,068 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] [2019-11-25 08:56:34,069 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:34,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:34,069 INFO L82 PathProgramCache]: Analyzing trace with hash -714905248, now seen corresponding path program 3 times [2019-11-25 08:56:34,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:34,069 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260228665] [2019-11-25 08:56:34,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:34,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:34,201 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260228665] [2019-11-25 08:56:34,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:34,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:56:34,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731583418] [2019-11-25 08:56:34,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:56:34,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:34,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:56:34,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:56:34,202 INFO L87 Difference]: Start difference. First operand 768 states and 2576 transitions. Second operand 7 states. [2019-11-25 08:56:34,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:34,305 INFO L93 Difference]: Finished difference Result 1254 states and 4277 transitions. [2019-11-25 08:56:34,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:56:34,306 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-11-25 08:56:34,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:34,312 INFO L225 Difference]: With dead ends: 1254 [2019-11-25 08:56:34,312 INFO L226 Difference]: Without dead ends: 717 [2019-11-25 08:56:34,313 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 [2019-11-25 08:56:34,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-11-25 08:56:34,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2019-11-25 08:56:34,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2019-11-25 08:56:34,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 2432 transitions. [2019-11-25 08:56:34,336 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 2432 transitions. Word has length 40 [2019-11-25 08:56:34,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:34,336 INFO L462 AbstractCegarLoop]: Abstraction has 717 states and 2432 transitions. [2019-11-25 08:56:34,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:56:34,336 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 2432 transitions. [2019-11-25 08:56:34,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-25 08:56:34,338 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:34,338 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] [2019-11-25 08:56:34,338 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:34,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:34,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1960044418, now seen corresponding path program 4 times [2019-11-25 08:56:34,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:34,339 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777117829] [2019-11-25 08:56:34,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:34,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:34,482 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777117829] [2019-11-25 08:56:34,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:34,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:56:34,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378278900] [2019-11-25 08:56:34,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:56:34,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:34,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:56:34,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:56:34,484 INFO L87 Difference]: Start difference. First operand 717 states and 2432 transitions. Second operand 7 states. [2019-11-25 08:56:34,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:34,634 INFO L93 Difference]: Finished difference Result 555 states and 1838 transitions. [2019-11-25 08:56:34,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:56:34,635 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-11-25 08:56:34,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:34,635 INFO L225 Difference]: With dead ends: 555 [2019-11-25 08:56:34,635 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:56:34,636 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:56:34,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:56:34,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:56:34,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:56:34,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:56:34,636 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2019-11-25 08:56:34,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:34,637 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:56:34,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:56:34,637 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:56:34,637 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:56:34,639 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:56:34,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:56:34 BasicIcfg [2019-11-25 08:56:34,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:56:34,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:56:34,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:56:34,643 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:56:34,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:30" (3/4) ... [2019-11-25 08:56:34,647 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:56:34,667 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:56:34,668 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:56:34,668 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-25 08:56:34,668 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-11-25 08:56:34,672 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-25 08:56:34,672 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:56:34,673 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:56:34,732 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_45d2d5e9-80b1-4c1e-af31-90a8e7b7b153/bin/uautomizer/witness.graphml [2019-11-25 08:56:34,733 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:56:34,734 INFO L168 Benchmark]: Toolchain (without parser) took 5298.32 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 285.2 MB). Free memory was 944.7 MB in the beginning and 896.8 MB in the end (delta: 48.0 MB). Peak memory consumption was 333.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:34,735 INFO L168 Benchmark]: CDTParser took 0.22 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. [2019-11-25 08:56:34,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -200.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:34,736 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.67 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. [2019-11-25 08:56:34,736 INFO L168 Benchmark]: Boogie Preprocessor took 22.71 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. [2019-11-25 08:56:34,737 INFO L168 Benchmark]: RCFGBuilder took 369.44 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: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:34,737 INFO L168 Benchmark]: TraceAbstraction took 4150.71 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 108.5 MB). Free memory was 1.1 GB in the beginning and 907.8 MB in the end (delta: 202.1 MB). Peak memory consumption was 310.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:34,738 INFO L168 Benchmark]: Witness Printer took 90.33 ms. Allocated memory is still 1.3 GB. Free memory was 907.8 MB in the beginning and 896.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:34,740 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 618.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -200.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.67 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. * Boogie Preprocessor took 22.71 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 369.44 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: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4150.71 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 108.5 MB). Free memory was 1.1 GB in the beginning and 907.8 MB in the end (delta: 202.1 MB). Peak memory consumption was 310.6 MB. Max. memory is 11.5 GB. * Witness Printer took 90.33 ms. Allocated memory is still 1.3 GB. Free memory was 907.8 MB in the beginning and 896.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 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, 113 locations, 1 error locations. Result: SAFE, OverallTime: 3.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 479 SDtfs, 699 SDslu, 1362 SDs, 0 SdLazy, 193 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5473occurred 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: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 35816 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...