./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/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 0.1.25-f470102 [2019-12-07 10:08:10,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:08:10,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:08:10,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:08:10,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:08:10,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:08:10,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:08:10,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:08:10,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:08:10,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:08:10,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:08:10,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:08:10,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:08:10,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:08:10,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:08:10,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:08:10,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:08:10,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:08:10,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:08:10,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:08:10,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:08:10,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:08:10,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:08:10,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:08:10,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:08:10,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:08:10,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:08:10,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:08:10,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:08:10,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:08:10,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:08:10,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:08:10,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:08:10,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:08:10,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:08:10,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:08:10,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:08:10,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:08:10,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:08:10,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:08:10,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:08:10,484 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 10:08:10,493 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:08:10,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:08:10,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:08:10,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:08:10,495 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:08:10,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:08:10,495 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:08:10,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:08:10,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:08:10,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:08:10,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:08:10,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:08:10,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:08:10,496 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:08:10,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:08:10,496 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:08:10,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:08:10,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:08:10,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:08:10,497 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:08:10,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:08:10,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:08:10,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:08:10,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:08:10,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:08:10,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:08:10,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:08:10,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:08:10,498 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:08:10,498 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_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/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 [2019-12-07 10:08:10,596 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:08:10,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:08:10,606 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:08:10,607 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:08:10,608 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:08:10,608 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc.i [2019-12-07 10:08:10,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/bin/uautomizer/data/3657fc91c/76456c97f45149ccaddcba5165fa4b9a/FLAG121f9efaf [2019-12-07 10:08:11,080 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:08:11,081 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc.i [2019-12-07 10:08:11,091 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/bin/uautomizer/data/3657fc91c/76456c97f45149ccaddcba5165fa4b9a/FLAG121f9efaf [2019-12-07 10:08:11,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/bin/uautomizer/data/3657fc91c/76456c97f45149ccaddcba5165fa4b9a [2019-12-07 10:08:11,425 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:08:11,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:08:11,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:08:11,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:08:11,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:08:11,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:08:11" (1/1) ... [2019-12-07 10:08:11,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a891328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:11, skipping insertion in model container [2019-12-07 10:08:11,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:08:11" (1/1) ... [2019-12-07 10:08:11,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:08:11,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:08:11,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:08:11,703 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:08:11,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:08:11,785 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:08:11,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:11 WrapperNode [2019-12-07 10:08:11,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:08:11,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:08:11,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:08:11,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:08:11,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:11" (1/1) ... [2019-12-07 10:08:11,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:11" (1/1) ... [2019-12-07 10:08:11,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:08:11,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:08:11,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:08:11,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:08:11,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:11" (1/1) ... [2019-12-07 10:08:11,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:11" (1/1) ... [2019-12-07 10:08:11,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:11" (1/1) ... [2019-12-07 10:08:11,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:11" (1/1) ... [2019-12-07 10:08:11,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:11" (1/1) ... [2019-12-07 10:08:11,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:11" (1/1) ... [2019-12-07 10:08:11,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:11" (1/1) ... [2019-12-07 10:08:11,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:08:11,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:08:11,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:08:11,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:08:11,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/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 [2019-12-07 10:08:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 10:08:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-07 10:08:11,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:08:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:08:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-07 10:08:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-07 10:08:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-07 10:08:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-07 10:08:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-07 10:08:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-07 10:08:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-07 10:08:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-07 10:08:11,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-07 10:08:11,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:08:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:08:11,895 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-07 10:08:12,085 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:08:12,085 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 10:08:12,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:12 BoogieIcfgContainer [2019-12-07 10:08:12,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:08:12,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:08:12,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:08:12,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:08:12,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:08:11" (1/3) ... [2019-12-07 10:08:12,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d97cdce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:08:12, skipping insertion in model container [2019-12-07 10:08:12,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:11" (2/3) ... [2019-12-07 10:08:12,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d97cdce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:08:12, skipping insertion in model container [2019-12-07 10:08:12,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:12" (3/3) ... [2019-12-07 10:08:12,090 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc.i [2019-12-07 10:08:12,097 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-07 10:08:12,097 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:08:12,101 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 10:08:12,102 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-07 10:08:12,120 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,120 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,120 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,120 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,121 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,121 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,121 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,121 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,121 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,121 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,121 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,121 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,122 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,122 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,122 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,122 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,122 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,122 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,122 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,123 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,123 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,123 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,123 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,123 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 10:08:12,137 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-07 10:08:12,150 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:08:12,150 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:08:12,150 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:08:12,150 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:08:12,150 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:08:12,150 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:08:12,150 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:08:12,150 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:08:12,159 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 67 transitions [2019-12-07 10:08:12,161 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 67 transitions [2019-12-07 10:08:12,189 INFO L134 PetriNetUnfolder]: 1/63 cut-off events. [2019-12-07 10:08:12,189 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 10:08:12,193 INFO L76 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 1/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs. 12/73 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-12-07 10:08:12,195 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 67 transitions [2019-12-07 10:08:12,208 INFO L134 PetriNetUnfolder]: 1/63 cut-off events. [2019-12-07 10:08:12,208 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 10:08:12,209 INFO L76 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 1/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs. 12/73 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-12-07 10:08:12,210 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 732 [2019-12-07 10:08:12,211 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-07 10:08:13,096 INFO L206 etLargeBlockEncoding]: Checked pairs total: 723 [2019-12-07 10:08:13,096 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2019-12-07 10:08:13,098 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 21 transitions [2019-12-07 10:08:13,109 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 110 states. [2019-12-07 10:08:13,110 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2019-12-07 10:08:13,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 10:08:13,115 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:08:13,115 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:13,116 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:08:13,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:13,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1014881653, now seen corresponding path program 1 times [2019-12-07 10:08:13,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:13,125 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7673060] [2019-12-07 10:08:13,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:13,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:13,297 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7673060] [2019-12-07 10:08:13,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:13,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 10:08:13,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648884429] [2019-12-07 10:08:13,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:08:13,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:08:13,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:08:13,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:08:13,312 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 3 states. [2019-12-07 10:08:13,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:08:13,341 INFO L93 Difference]: Finished difference Result 139 states and 354 transitions. [2019-12-07 10:08:13,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:08:13,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-07 10:08:13,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:08:13,350 INFO L225 Difference]: With dead ends: 139 [2019-12-07 10:08:13,350 INFO L226 Difference]: Without dead ends: 77 [2019-12-07 10:08:13,351 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:08:13,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-12-07 10:08:13,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-12-07 10:08:13,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-12-07 10:08:13,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 187 transitions. [2019-12-07 10:08:13,380 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 187 transitions. Word has length 10 [2019-12-07 10:08:13,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:08:13,380 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 187 transitions. [2019-12-07 10:08:13,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:08:13,381 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 187 transitions. [2019-12-07 10:08:13,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 10:08:13,381 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:08:13,381 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:13,382 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:08:13,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:13,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1386680118, now seen corresponding path program 1 times [2019-12-07 10:08:13,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:13,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195861841] [2019-12-07 10:08:13,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:13,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:13,427 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195861841] [2019-12-07 10:08:13,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:13,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 10:08:13,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384038602] [2019-12-07 10:08:13,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:08:13,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:08:13,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:08:13,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:08:13,430 INFO L87 Difference]: Start difference. First operand 77 states and 187 transitions. Second operand 3 states. [2019-12-07 10:08:13,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:08:13,436 INFO L93 Difference]: Finished difference Result 70 states and 164 transitions. [2019-12-07 10:08:13,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:08:13,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-07 10:08:13,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:08:13,438 INFO L225 Difference]: With dead ends: 70 [2019-12-07 10:08:13,438 INFO L226 Difference]: Without dead ends: 70 [2019-12-07 10:08:13,439 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:08:13,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-12-07 10:08:13,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-12-07 10:08:13,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-07 10:08:13,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 164 transitions. [2019-12-07 10:08:13,448 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 164 transitions. Word has length 11 [2019-12-07 10:08:13,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:08:13,448 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 164 transitions. [2019-12-07 10:08:13,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:08:13,448 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 164 transitions. [2019-12-07 10:08:13,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 10:08:13,449 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:08:13,449 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:13,449 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:08:13,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:13,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1396559942, now seen corresponding path program 1 times [2019-12-07 10:08:13,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:13,450 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709883778] [2019-12-07 10:08:13,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:13,505 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709883778] [2019-12-07 10:08:13,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:13,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 10:08:13,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905191292] [2019-12-07 10:08:13,505 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:08:13,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:08:13,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:08:13,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:08:13,506 INFO L87 Difference]: Start difference. First operand 70 states and 164 transitions. Second operand 4 states. [2019-12-07 10:08:13,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:08:13,522 INFO L93 Difference]: Finished difference Result 66 states and 152 transitions. [2019-12-07 10:08:13,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:08:13,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 10:08:13,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:08:13,523 INFO L225 Difference]: With dead ends: 66 [2019-12-07 10:08:13,524 INFO L226 Difference]: Without dead ends: 66 [2019-12-07 10:08:13,524 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:08:13,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-12-07 10:08:13,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-12-07 10:08:13,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-12-07 10:08:13,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 152 transitions. [2019-12-07 10:08:13,531 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 152 transitions. Word has length 11 [2019-12-07 10:08:13,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:08:13,531 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 152 transitions. [2019-12-07 10:08:13,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:08:13,531 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 152 transitions. [2019-12-07 10:08:13,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 10:08:13,532 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:08:13,532 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:13,532 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:08:13,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:13,533 INFO L82 PathProgramCache]: Analyzing trace with hash 343681169, now seen corresponding path program 1 times [2019-12-07 10:08:13,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:13,533 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786360145] [2019-12-07 10:08:13,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:13,579 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786360145] [2019-12-07 10:08:13,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:13,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:08:13,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753693316] [2019-12-07 10:08:13,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:08:13,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:08:13,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:08:13,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:08:13,580 INFO L87 Difference]: Start difference. First operand 66 states and 152 transitions. Second operand 5 states. [2019-12-07 10:08:13,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:08:13,596 INFO L93 Difference]: Finished difference Result 72 states and 159 transitions. [2019-12-07 10:08:13,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:08:13,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-12-07 10:08:13,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:08:13,597 INFO L225 Difference]: With dead ends: 72 [2019-12-07 10:08:13,597 INFO L226 Difference]: Without dead ends: 56 [2019-12-07 10:08:13,597 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:08:13,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-12-07 10:08:13,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-12-07 10:08:13,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 10:08:13,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 119 transitions. [2019-12-07 10:08:13,601 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 119 transitions. Word has length 12 [2019-12-07 10:08:13,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:08:13,601 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 119 transitions. [2019-12-07 10:08:13,601 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:08:13,601 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 119 transitions. [2019-12-07 10:08:13,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 10:08:13,602 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:08:13,602 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:13,602 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:08:13,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:13,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1159720466, now seen corresponding path program 1 times [2019-12-07 10:08:13,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:13,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446631707] [2019-12-07 10:08:13,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:13,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:13,642 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446631707] [2019-12-07 10:08:13,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:13,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 10:08:13,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824772970] [2019-12-07 10:08:13,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:08:13,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:08:13,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:08:13,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:08:13,643 INFO L87 Difference]: Start difference. First operand 56 states and 119 transitions. Second operand 4 states. [2019-12-07 10:08:13,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:08:13,654 INFO L93 Difference]: Finished difference Result 55 states and 117 transitions. [2019-12-07 10:08:13,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:08:13,654 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-12-07 10:08:13,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:08:13,655 INFO L225 Difference]: With dead ends: 55 [2019-12-07 10:08:13,655 INFO L226 Difference]: Without dead ends: 55 [2019-12-07 10:08:13,655 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:08:13,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-12-07 10:08:13,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-12-07 10:08:13,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-12-07 10:08:13,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 117 transitions. [2019-12-07 10:08:13,659 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 117 transitions. Word has length 13 [2019-12-07 10:08:13,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:08:13,659 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 117 transitions. [2019-12-07 10:08:13,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:08:13,659 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 117 transitions. [2019-12-07 10:08:13,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 10:08:13,659 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:08:13,660 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:13,660 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:08:13,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:13,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1591594888, now seen corresponding path program 1 times [2019-12-07 10:08:13,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:13,660 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937271529] [2019-12-07 10:08:13,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:13,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:13,703 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937271529] [2019-12-07 10:08:13,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:13,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:08:13,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814022122] [2019-12-07 10:08:13,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:08:13,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:08:13,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:08:13,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:08:13,704 INFO L87 Difference]: Start difference. First operand 55 states and 117 transitions. Second operand 5 states. [2019-12-07 10:08:13,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:08:13,719 INFO L93 Difference]: Finished difference Result 67 states and 135 transitions. [2019-12-07 10:08:13,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:08:13,720 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-07 10:08:13,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:08:13,721 INFO L225 Difference]: With dead ends: 67 [2019-12-07 10:08:13,721 INFO L226 Difference]: Without dead ends: 43 [2019-12-07 10:08:13,721 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:08:13,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-12-07 10:08:13,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-12-07 10:08:13,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-12-07 10:08:13,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 79 transitions. [2019-12-07 10:08:13,724 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 79 transitions. Word has length 14 [2019-12-07 10:08:13,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:08:13,724 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 79 transitions. [2019-12-07 10:08:13,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:08:13,724 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 79 transitions. [2019-12-07 10:08:13,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 10:08:13,725 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:08:13,725 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:13,725 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:08:13,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:13,726 INFO L82 PathProgramCache]: Analyzing trace with hash -432128726, now seen corresponding path program 2 times [2019-12-07 10:08:13,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:13,726 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222765128] [2019-12-07 10:08:13,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:13,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:13,772 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222765128] [2019-12-07 10:08:13,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:13,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:08:13,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471903556] [2019-12-07 10:08:13,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:08:13,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:08:13,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:08:13,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:08:13,773 INFO L87 Difference]: Start difference. First operand 43 states and 79 transitions. Second operand 5 states. [2019-12-07 10:08:13,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:08:13,785 INFO L93 Difference]: Finished difference Result 45 states and 80 transitions. [2019-12-07 10:08:13,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:08:13,786 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-07 10:08:13,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:08:13,786 INFO L225 Difference]: With dead ends: 45 [2019-12-07 10:08:13,786 INFO L226 Difference]: Without dead ends: 25 [2019-12-07 10:08:13,787 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:08:13,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-07 10:08:13,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-07 10:08:13,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 10:08:13,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-07 10:08:13,788 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 14 [2019-12-07 10:08:13,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:08:13,789 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-07 10:08:13,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:08:13,789 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-07 10:08:13,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 10:08:13,789 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:08:13,789 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:08:13,789 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:08:13,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:13,790 INFO L82 PathProgramCache]: Analyzing trace with hash -431612576, now seen corresponding path program 3 times [2019-12-07 10:08:13,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:13,790 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795657415] [2019-12-07 10:08:13,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:13,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:13,828 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795657415] [2019-12-07 10:08:13,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:13,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:08:13,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234552662] [2019-12-07 10:08:13,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:08:13,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:08:13,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:08:13,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:08:13,829 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 5 states. [2019-12-07 10:08:13,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:08:13,838 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions. [2019-12-07 10:08:13,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:08:13,839 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-07 10:08:13,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:08:13,839 INFO L225 Difference]: With dead ends: 24 [2019-12-07 10:08:13,839 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 10:08:13,839 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:08:13,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 10:08:13,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 10:08:13,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 10:08:13,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 10:08:13,840 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-12-07 10:08:13,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:08:13,840 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:08:13,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:08:13,840 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:08:13,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 10:08:13,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:08:13 BasicIcfg [2019-12-07 10:08:13,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:08:13,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:08:13,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:08:13,843 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:08:13,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:12" (3/4) ... [2019-12-07 10:08:13,846 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 10:08:13,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-12-07 10:08:13,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-12-07 10:08:13,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-12-07 10:08:13,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-12-07 10:08:13,854 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-12-07 10:08:13,854 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 10:08:13,855 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 10:08:13,885 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0043ee2e-1f10-4b73-ab82-40cf4adfda5f/bin/uautomizer/witness.graphml [2019-12-07 10:08:13,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:08:13,887 INFO L168 Benchmark]: Toolchain (without parser) took 2460.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 939.8 MB in the beginning and 969.6 MB in the end (delta: -29.8 MB). Peak memory consumption was 68.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:13,887 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 961.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:08:13,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -125.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:13,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.57 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:08:13,888 INFO L168 Benchmark]: Boogie Preprocessor took 18.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:13,888 INFO L168 Benchmark]: RCFGBuilder took 243.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:13,888 INFO L168 Benchmark]: TraceAbstraction took 1756.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 976.5 MB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:13,889 INFO L168 Benchmark]: Witness Printer took 41.88 ms. Allocated memory is still 1.1 GB. Free memory was 976.5 MB in the beginning and 969.6 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:13,890 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 961.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 358.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -125.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.57 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 243.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1756.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 976.5 MB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. * Witness Printer took 41.88 ms. Allocated memory is still 1.1 GB. Free memory was 976.5 MB in the beginning and 969.6 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 79 ProgramPointsBefore, 28 ProgramPointsAfterwards, 67 TransitionsBefore, 21 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 358 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 723 CheckedPairsTotal, 56 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 67 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 108 SDtfs, 95 SDslu, 69 SDs, 0 SdLazy, 49 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred 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: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 5301 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...