./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe004_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe004_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/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 ded60c2640c7a5c934b99844f7194016ae78ae9b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:11,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:11,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:11,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:11,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:11,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:11,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:11,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:11,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:11,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:11,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:11,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:11,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:11,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:11,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:11,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:11,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:11,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:11,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:11,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:11,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:11,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:11,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:11,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:11,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:11,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:11,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:11,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:11,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:11,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:11,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:11,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:11,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:11,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:11,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:11,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:11,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:11,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:11,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:11,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:11,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:11,790 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:02:11,808 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:11,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:11,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:11,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:11,809 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:11,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:11,810 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:11,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:11,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:11,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:11,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:02:11,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:11,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:02:11,811 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:11,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:11,811 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:11,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:02:11,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:11,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:11,812 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:11,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:11,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:11,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:11,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:11,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:02:11,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:11,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:11,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:02:11,813 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/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/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 -> ded60c2640c7a5c934b99844f7194016ae78ae9b [2019-10-22 09:02:11,837 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:11,848 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:11,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:11,854 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:11,855 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:11,855 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe004_tso.opt.i [2019-10-22 09:02:11,902 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/bin/uautomizer/data/f900fc635/af613252b4cd43c3b809f8125fb36337/FLAGdce364826 [2019-10-22 09:02:12,368 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:12,370 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/sv-benchmarks/c/pthread-wmm/safe004_tso.opt.i [2019-10-22 09:02:12,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/bin/uautomizer/data/f900fc635/af613252b4cd43c3b809f8125fb36337/FLAGdce364826 [2019-10-22 09:02:12,876 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/bin/uautomizer/data/f900fc635/af613252b4cd43c3b809f8125fb36337 [2019-10-22 09:02:12,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:12,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:12,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:12,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:12,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:12,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:12" (1/1) ... [2019-10-22 09:02:12,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4544c513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:12, skipping insertion in model container [2019-10-22 09:02:12,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:12" (1/1) ... [2019-10-22 09:02:12,893 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:12,931 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:13,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:13,365 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:13,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:13,486 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:13,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13 WrapperNode [2019-10-22 09:02:13,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:13,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:13,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:13,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:13,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:13,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:13,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:13,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:13,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:13,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:13,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:13,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:13,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/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 [2019-10-22 09:02:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:02:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 09:02:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:02:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 09:02:13,612 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 09:02:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 09:02:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 09:02:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 09:02:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 09:02:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 09:02:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:13,615 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 09:02:13,955 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:13,956 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 09:02:13,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:13 BoogieIcfgContainer [2019-10-22 09:02:13,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:13,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:13,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:13,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:13,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:12" (1/3) ... [2019-10-22 09:02:13,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2b4029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:13, skipping insertion in model container [2019-10-22 09:02:13,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (2/3) ... [2019-10-22 09:02:13,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2b4029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:13, skipping insertion in model container [2019-10-22 09:02:13,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:13" (3/3) ... [2019-10-22 09:02:13,966 INFO L109 eAbstractionObserver]: Analyzing ICFG safe004_tso.opt.i [2019-10-22 09:02:14,001 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,001 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,001 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,001 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,002 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,002 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,002 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,002 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,002 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,002 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,003 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,003 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,003 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,003 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,004 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,004 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,004 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,004 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,004 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,005 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,005 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,005 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,005 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,005 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,006 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,006 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,006 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,006 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,006 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,006 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:14,016 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 09:02:14,016 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:14,024 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:02:14,031 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:02:14,044 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:14,044 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:02:14,044 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:14,044 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:14,045 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:14,045 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:14,045 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:14,045 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:14,052 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 52 transitions [2019-10-22 09:02:14,189 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2019-10-22 09:02:14,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2019-10-22 09:02:14,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 09:02:14,205 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:14,206 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:14,208 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:14,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:14,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1031676120, now seen corresponding path program 1 times [2019-10-22 09:02:14,221 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:14,221 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945815884] [2019-10-22 09:02:14,221 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:14,221 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:14,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:14,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:14,540 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945815884] [2019-10-22 09:02:14,541 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:14,541 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:14,541 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040340689] [2019-10-22 09:02:14,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:14,546 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:14,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:14,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:14,562 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2019-10-22 09:02:14,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:14,700 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2019-10-22 09:02:14,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:02:14,702 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-10-22 09:02:14,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:14,737 INFO L225 Difference]: With dead ends: 2492 [2019-10-22 09:02:14,738 INFO L226 Difference]: Without dead ends: 1127 [2019-10-22 09:02:14,742 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:14,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2019-10-22 09:02:14,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2019-10-22 09:02:14,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2019-10-22 09:02:14,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2019-10-22 09:02:14,880 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2019-10-22 09:02:14,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:14,881 INFO L462 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2019-10-22 09:02:14,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:14,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2019-10-22 09:02:14,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 09:02:14,890 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:14,891 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:14,891 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:14,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:14,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1790148292, now seen corresponding path program 1 times [2019-10-22 09:02:14,892 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:14,892 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014217245] [2019-10-22 09:02:14,892 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:14,892 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:14,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:15,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:15,040 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014217245] [2019-10-22 09:02:15,040 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:15,040 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:02:15,040 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730038339] [2019-10-22 09:02:15,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:15,042 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:15,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:15,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:15,042 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2019-10-22 09:02:15,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:15,121 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2019-10-22 09:02:15,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:15,122 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 09:02:15,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:15,127 INFO L225 Difference]: With dead ends: 1167 [2019-10-22 09:02:15,128 INFO L226 Difference]: Without dead ends: 1043 [2019-10-22 09:02:15,129 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:15,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2019-10-22 09:02:15,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2019-10-22 09:02:15,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2019-10-22 09:02:15,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2019-10-22 09:02:15,166 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2019-10-22 09:02:15,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:15,167 INFO L462 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2019-10-22 09:02:15,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:15,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2019-10-22 09:02:15,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 09:02:15,169 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:15,169 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:15,169 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:15,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:15,170 INFO L82 PathProgramCache]: Analyzing trace with hash -85432878, now seen corresponding path program 1 times [2019-10-22 09:02:15,170 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:15,170 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636663034] [2019-10-22 09:02:15,170 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:15,171 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:15,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:15,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:15,292 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636663034] [2019-10-22 09:02:15,293 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:15,293 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:02:15,293 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480852051] [2019-10-22 09:02:15,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:02:15,294 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:15,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:15,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:15,294 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2019-10-22 09:02:15,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:15,387 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2019-10-22 09:02:15,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:15,387 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 09:02:15,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:15,391 INFO L225 Difference]: With dead ends: 819 [2019-10-22 09:02:15,391 INFO L226 Difference]: Without dead ends: 707 [2019-10-22 09:02:15,392 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:02:15,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-10-22 09:02:15,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2019-10-22 09:02:15,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2019-10-22 09:02:15,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2019-10-22 09:02:15,415 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2019-10-22 09:02:15,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:15,415 INFO L462 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2019-10-22 09:02:15,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:02:15,416 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2019-10-22 09:02:15,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 09:02:15,417 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:15,418 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:15,418 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:15,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:15,418 INFO L82 PathProgramCache]: Analyzing trace with hash -213907760, now seen corresponding path program 1 times [2019-10-22 09:02:15,418 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:15,419 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106079406] [2019-10-22 09:02:15,419 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:15,419 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:15,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:15,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:15,529 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106079406] [2019-10-22 09:02:15,529 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:15,529 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:02:15,529 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901002451] [2019-10-22 09:02:15,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:02:15,530 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:15,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:15,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:15,531 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 6 states. [2019-10-22 09:02:15,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:15,631 INFO L93 Difference]: Finished difference Result 1171 states and 3450 transitions. [2019-10-22 09:02:15,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:15,632 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-10-22 09:02:15,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:15,635 INFO L225 Difference]: With dead ends: 1171 [2019-10-22 09:02:15,636 INFO L226 Difference]: Without dead ends: 655 [2019-10-22 09:02:15,636 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:02:15,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2019-10-22 09:02:15,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2019-10-22 09:02:15,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2019-10-22 09:02:15,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1930 transitions. [2019-10-22 09:02:15,658 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1930 transitions. Word has length 32 [2019-10-22 09:02:15,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:15,658 INFO L462 AbstractCegarLoop]: Abstraction has 655 states and 1930 transitions. [2019-10-22 09:02:15,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:02:15,658 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1930 transitions. [2019-10-22 09:02:15,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 09:02:15,661 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:15,661 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:15,661 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:15,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:15,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1910116666, now seen corresponding path program 2 times [2019-10-22 09:02:15,662 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:15,662 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752865712] [2019-10-22 09:02:15,664 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:15,664 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:15,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:15,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:15,813 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752865712] [2019-10-22 09:02:15,813 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:15,813 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:02:15,813 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963341565] [2019-10-22 09:02:15,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:02:15,814 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:15,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:02:15,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:15,814 INFO L87 Difference]: Start difference. First operand 655 states and 1930 transitions. Second operand 7 states. [2019-10-22 09:02:16,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:16,011 INFO L93 Difference]: Finished difference Result 527 states and 1514 transitions. [2019-10-22 09:02:16,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:16,011 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2019-10-22 09:02:16,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:16,012 INFO L225 Difference]: With dead ends: 527 [2019-10-22 09:02:16,012 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:02:16,012 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:02:16,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:02:16,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:02:16,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:02:16,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:02:16,013 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-10-22 09:02:16,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:16,014 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:16,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:02:16,015 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:16,015 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:02:16,018 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 09:02:16,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:16 BasicIcfg [2019-10-22 09:02:16,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:16,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:16,021 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:16,022 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:16,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:13" (3/4) ... [2019-10-22 09:02:16,026 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:02:16,034 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 09:02:16,034 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 09:02:16,035 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 09:02:16,040 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 09:02:16,041 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 09:02:16,086 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2ca77d15-2e51-4449-a193-b21c6af8fbfd/bin/uautomizer/witness.graphml [2019-10-22 09:02:16,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:16,088 INFO L168 Benchmark]: Toolchain (without parser) took 3209.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 939.2 MB in the beginning and 881.1 MB in the end (delta: 58.0 MB). Peak memory consumption was 232.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:16,089 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:16,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -205.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:16,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.08 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. [2019-10-22 09:02:16,090 INFO L168 Benchmark]: Boogie Preprocessor took 20.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:16,091 INFO L168 Benchmark]: RCFGBuilder took 407.62 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: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:16,091 INFO L168 Benchmark]: TraceAbstraction took 2063.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 881.1 MB in the end (delta: 229.4 MB). Peak memory consumption was 229.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:16,097 INFO L168 Benchmark]: Witness Printer took 65.19 ms. Allocated memory is still 1.2 GB. Free memory is still 881.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:16,099 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 607.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -205.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.08 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 20.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 407.62 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: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2063.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 881.1 MB in the end (delta: 229.4 MB). Peak memory consumption was 229.4 MB. Max. memory is 11.5 GB. * Witness Printer took 65.19 ms. Allocated memory is still 1.2 GB. Free memory is still 881.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 70 locations, 1 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 269 SDtfs, 330 SDslu, 613 SDs, 0 SdLazy, 84 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 12695 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...