./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/20_lamport_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9f73142f-0f25-4399-b79f-9bebd25f5c3c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9f73142f-0f25-4399-b79f-9bebd25f5c3c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9f73142f-0f25-4399-b79f-9bebd25f5c3c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9f73142f-0f25-4399-b79f-9bebd25f5c3c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/20_lamport_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9f73142f-0f25-4399-b79f-9bebd25f5c3c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9f73142f-0f25-4399-b79f-9bebd25f5c3c/bin-2019/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 8fadcfc916b2f65c1721b9377548800a44202c5e .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:32:30,779 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:32:30,780 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:32:30,789 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:32:30,789 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:32:30,790 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:32:30,790 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:32:30,792 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:32:30,793 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:32:30,794 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:32:30,794 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:32:30,794 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:32:30,795 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:32:30,795 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:32:30,796 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:32:30,796 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:32:30,797 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:32:30,798 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:32:30,799 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:32:30,800 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:32:30,801 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:32:30,802 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:32:30,803 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:32:30,803 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:32:30,803 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:32:30,803 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:32:30,804 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:32:30,804 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:32:30,805 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:32:30,805 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:32:30,805 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:32:30,806 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:32:30,806 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:32:30,806 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:32:30,807 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:32:30,807 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:32:30,807 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9f73142f-0f25-4399-b79f-9bebd25f5c3c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:32:30,814 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:32:30,814 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:32:30,815 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:32:30,815 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:32:30,815 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:32:30,815 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:32:30,816 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:32:30,816 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:32:30,816 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:32:30,816 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:32:30,816 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:32:30,816 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:32:30,817 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:32:30,817 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:32:30,817 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:32:30,817 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:32:30,817 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:32:30,817 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:32:30,817 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:32:30,818 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:32:30,818 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:32:30,818 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:32:30,818 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:32:30,818 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:32:30,818 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:32:30,819 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:32:30,819 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:32:30,819 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:32:30,819 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:32:30,819 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:32:30,819 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_9f73142f-0f25-4399-b79f-9bebd25f5c3c/bin-2019/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 -> 8fadcfc916b2f65c1721b9377548800a44202c5e [2018-11-28 12:32:30,841 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:32:30,850 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:32:30,853 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:32:30,854 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:32:30,854 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:32:30,855 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9f73142f-0f25-4399-b79f-9bebd25f5c3c/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-ext/20_lamport_true-unreach-call.i [2018-11-28 12:32:30,899 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9f73142f-0f25-4399-b79f-9bebd25f5c3c/bin-2019/uautomizer/data/12f6ba827/f466d94d0c8049f98c9bd32067fd99bb/FLAG4f351e2ec [2018-11-28 12:32:31,331 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:32:31,332 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9f73142f-0f25-4399-b79f-9bebd25f5c3c/sv-benchmarks/c/pthread-ext/20_lamport_true-unreach-call.i [2018-11-28 12:32:31,341 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9f73142f-0f25-4399-b79f-9bebd25f5c3c/bin-2019/uautomizer/data/12f6ba827/f466d94d0c8049f98c9bd32067fd99bb/FLAG4f351e2ec [2018-11-28 12:32:31,352 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9f73142f-0f25-4399-b79f-9bebd25f5c3c/bin-2019/uautomizer/data/12f6ba827/f466d94d0c8049f98c9bd32067fd99bb [2018-11-28 12:32:31,354 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:32:31,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:32:31,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:32:31,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:32:31,358 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:32:31,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:32:31" (1/1) ... [2018-11-28 12:32:31,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b810661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:32:31, skipping insertion in model container [2018-11-28 12:32:31,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:32:31" (1/1) ... [2018-11-28 12:32:31,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:32:31,390 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:32:31,585 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:32:31,594 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:32:31,668 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:32:31,710 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:32:31,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:32:31 WrapperNode [2018-11-28 12:32:31,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:32:31,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:32:31,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:32:31,712 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:32:31,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:32:31" (1/1) ... [2018-11-28 12:32:31,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:32:31" (1/1) ... [2018-11-28 12:32:31,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:32:31,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:32:31,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:32:31,747 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:32:31,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:32:31" (1/1) ... [2018-11-28 12:32:31,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:32:31" (1/1) ... [2018-11-28 12:32:31,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:32:31" (1/1) ... [2018-11-28 12:32:31,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:32:31" (1/1) ... [2018-11-28 12:32:31,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:32:31" (1/1) ... [2018-11-28 12:32:31,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:32:31" (1/1) ... [2018-11-28 12:32:31,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:32:31" (1/1) ... [2018-11-28 12:32:31,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:32:31,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:32:31,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:32:31,772 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:32:31,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:32:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9f73142f-0f25-4399-b79f-9bebd25f5c3c/bin-2019/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 [2018-11-28 12:32:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:32:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-28 12:32:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-28 12:32:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:32:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:32:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:32:31,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:32:31,813 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-28 12:32:32,157 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:32:32,157 INFO L280 CfgBuilder]: Removed 14 assue(true) statements. [2018-11-28 12:32:32,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:32:32 BoogieIcfgContainer [2018-11-28 12:32:32,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:32:32,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:32:32,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:32:32,162 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:32:32,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:32:31" (1/3) ... [2018-11-28 12:32:32,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ea3fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:32:32, skipping insertion in model container [2018-11-28 12:32:32,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:32:31" (2/3) ... [2018-11-28 12:32:32,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ea3fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:32:32, skipping insertion in model container [2018-11-28 12:32:32,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:32:32" (3/3) ... [2018-11-28 12:32:32,165 INFO L112 eAbstractionObserver]: Analyzing ICFG 20_lamport_true-unreach-call.i [2018-11-28 12:32:32,187 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:32:32,187 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:32:32,188 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:32:32,188 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:32:32,188 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:32:32,188 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:32:32,202 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 12:32:32,202 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:32:32,207 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-28 12:32:32,220 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-28 12:32:32,241 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:32:32,242 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:32:32,242 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:32:32,242 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:32:32,242 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:32:32,242 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:32:32,242 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:32:32,242 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:32:32,242 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:32:32,251 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68places, 90 transitions [2018-11-28 12:32:32,286 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 771 states. [2018-11-28 12:32:32,288 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states. [2018-11-28 12:32:32,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 12:32:32,295 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:32:32,296 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:32:32,298 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:32:32,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:32:32,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1426480077, now seen corresponding path program 1 times [2018-11-28 12:32:32,303 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:32:32,304 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:32:32,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:32,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:32:32,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:32:32,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:32:32,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:32:32,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:32:32,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:32:32,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:32:32,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:32:32,413 INFO L87 Difference]: Start difference. First operand 771 states. Second operand 2 states. [2018-11-28 12:32:32,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:32:32,442 INFO L93 Difference]: Finished difference Result 771 states and 1810 transitions. [2018-11-28 12:32:32,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:32:32,443 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-28 12:32:32,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:32:32,456 INFO L225 Difference]: With dead ends: 771 [2018-11-28 12:32:32,456 INFO L226 Difference]: Without dead ends: 716 [2018-11-28 12:32:32,457 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:32:32,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2018-11-28 12:32:32,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2018-11-28 12:32:32,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2018-11-28 12:32:32,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1700 transitions. [2018-11-28 12:32:32,514 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1700 transitions. Word has length 17 [2018-11-28 12:32:32,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:32:32,515 INFO L480 AbstractCegarLoop]: Abstraction has 716 states and 1700 transitions. [2018-11-28 12:32:32,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:32:32,515 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1700 transitions. [2018-11-28 12:32:32,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 12:32:32,516 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:32:32,516 INFO L402 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] [2018-11-28 12:32:32,516 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:32:32,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:32:32,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1164346297, now seen corresponding path program 1 times [2018-11-28 12:32:32,517 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:32:32,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:32:32,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:32,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:32:32,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:32:32,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:32:32,572 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:32:32,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:32:32,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:32:32,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:32:32,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:32,574 INFO L87 Difference]: Start difference. First operand 716 states and 1700 transitions. Second operand 3 states. [2018-11-28 12:32:32,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:32:32,609 INFO L93 Difference]: Finished difference Result 707 states and 1649 transitions. [2018-11-28 12:32:32,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:32:32,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-11-28 12:32:32,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:32:32,613 INFO L225 Difference]: With dead ends: 707 [2018-11-28 12:32:32,613 INFO L226 Difference]: Without dead ends: 531 [2018-11-28 12:32:32,614 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:32,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2018-11-28 12:32:32,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 516. [2018-11-28 12:32:32,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2018-11-28 12:32:32,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 1221 transitions. [2018-11-28 12:32:32,633 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 1221 transitions. Word has length 23 [2018-11-28 12:32:32,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:32:32,633 INFO L480 AbstractCegarLoop]: Abstraction has 516 states and 1221 transitions. [2018-11-28 12:32:32,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:32:32,634 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 1221 transitions. [2018-11-28 12:32:32,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 12:32:32,635 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:32:32,636 INFO L402 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] [2018-11-28 12:32:32,636 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:32:32,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:32:32,636 INFO L82 PathProgramCache]: Analyzing trace with hash 2054278107, now seen corresponding path program 1 times [2018-11-28 12:32:32,636 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:32:32,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:32:32,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:32,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:32:32,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:32:32,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:32:32,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:32:32,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:32:32,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:32:32,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:32:32,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:32,668 INFO L87 Difference]: Start difference. First operand 516 states and 1221 transitions. Second operand 3 states. [2018-11-28 12:32:32,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:32:32,697 INFO L93 Difference]: Finished difference Result 485 states and 1140 transitions. [2018-11-28 12:32:32,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:32:32,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-11-28 12:32:32,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:32:32,699 INFO L225 Difference]: With dead ends: 485 [2018-11-28 12:32:32,700 INFO L226 Difference]: Without dead ends: 385 [2018-11-28 12:32:32,700 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:32,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2018-11-28 12:32:32,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2018-11-28 12:32:32,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2018-11-28 12:32:32,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 916 transitions. [2018-11-28 12:32:32,709 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 916 transitions. Word has length 27 [2018-11-28 12:32:32,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:32:32,709 INFO L480 AbstractCegarLoop]: Abstraction has 385 states and 916 transitions. [2018-11-28 12:32:32,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:32:32,709 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 916 transitions. [2018-11-28 12:32:32,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 12:32:32,711 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:32:32,711 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:32:32,712 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:32:32,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:32:32,712 INFO L82 PathProgramCache]: Analyzing trace with hash -474527472, now seen corresponding path program 1 times [2018-11-28 12:32:32,712 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:32:32,712 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:32:32,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:32,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:32:32,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:32:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:32:32,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:32:32,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:32:32,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:32:32,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:32:32,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:32,760 INFO L87 Difference]: Start difference. First operand 385 states and 916 transitions. Second operand 3 states. [2018-11-28 12:32:32,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:32:32,809 INFO L93 Difference]: Finished difference Result 474 states and 1100 transitions. [2018-11-28 12:32:32,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:32:32,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-11-28 12:32:32,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:32:32,812 INFO L225 Difference]: With dead ends: 474 [2018-11-28 12:32:32,812 INFO L226 Difference]: Without dead ends: 378 [2018-11-28 12:32:32,812 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:32,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2018-11-28 12:32:32,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 361. [2018-11-28 12:32:32,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2018-11-28 12:32:32,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 827 transitions. [2018-11-28 12:32:32,818 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 827 transitions. Word has length 36 [2018-11-28 12:32:32,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:32:32,818 INFO L480 AbstractCegarLoop]: Abstraction has 361 states and 827 transitions. [2018-11-28 12:32:32,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:32:32,819 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 827 transitions. [2018-11-28 12:32:32,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 12:32:32,820 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:32:32,820 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:32:32,820 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:32:32,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:32:32,820 INFO L82 PathProgramCache]: Analyzing trace with hash -508146392, now seen corresponding path program 2 times [2018-11-28 12:32:32,820 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:32:32,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:32:32,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:32,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:32:32,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:32:32,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:32:32,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:32:32,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:32:32,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:32:32,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:32:32,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:32,857 INFO L87 Difference]: Start difference. First operand 361 states and 827 transitions. Second operand 3 states. [2018-11-28 12:32:32,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:32:32,883 INFO L93 Difference]: Finished difference Result 544 states and 1180 transitions. [2018-11-28 12:32:32,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:32:32,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-11-28 12:32:32,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:32:32,886 INFO L225 Difference]: With dead ends: 544 [2018-11-28 12:32:32,886 INFO L226 Difference]: Without dead ends: 544 [2018-11-28 12:32:32,887 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:32,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2018-11-28 12:32:32,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 397. [2018-11-28 12:32:32,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2018-11-28 12:32:32,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 900 transitions. [2018-11-28 12:32:32,895 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 900 transitions. Word has length 36 [2018-11-28 12:32:32,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:32:32,896 INFO L480 AbstractCegarLoop]: Abstraction has 397 states and 900 transitions. [2018-11-28 12:32:32,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:32:32,896 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 900 transitions. [2018-11-28 12:32:32,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 12:32:32,897 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:32:32,897 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:32:32,898 INFO L423 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:32:32,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:32:32,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1093964798, now seen corresponding path program 3 times [2018-11-28 12:32:32,898 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:32:32,898 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:32:32,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:32,902 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:32:32,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:32:32,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:32:32,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:32:32,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:32:32,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:32:32,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:32:32,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:32,966 INFO L87 Difference]: Start difference. First operand 397 states and 900 transitions. Second operand 3 states. [2018-11-28 12:32:32,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:32:32,997 INFO L93 Difference]: Finished difference Result 502 states and 1034 transitions. [2018-11-28 12:32:32,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:32:32,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-11-28 12:32:32,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:32:33,000 INFO L225 Difference]: With dead ends: 502 [2018-11-28 12:32:33,000 INFO L226 Difference]: Without dead ends: 499 [2018-11-28 12:32:33,000 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:33,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2018-11-28 12:32:33,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 371. [2018-11-28 12:32:33,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2018-11-28 12:32:33,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 796 transitions. [2018-11-28 12:32:33,011 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 796 transitions. Word has length 36 [2018-11-28 12:32:33,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:32:33,012 INFO L480 AbstractCegarLoop]: Abstraction has 371 states and 796 transitions. [2018-11-28 12:32:33,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:32:33,012 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 796 transitions. [2018-11-28 12:32:33,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 12:32:33,013 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:32:33,014 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:32:33,014 INFO L423 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:32:33,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:32:33,014 INFO L82 PathProgramCache]: Analyzing trace with hash 2116291725, now seen corresponding path program 1 times [2018-11-28 12:32:33,014 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:32:33,015 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:32:33,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:33,022 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:32:33,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:32:33,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:32:33,054 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:32:33,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:32:33,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:32:33,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:32:33,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:33,055 INFO L87 Difference]: Start difference. First operand 371 states and 796 transitions. Second operand 3 states. [2018-11-28 12:32:33,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:32:33,111 INFO L93 Difference]: Finished difference Result 340 states and 669 transitions. [2018-11-28 12:32:33,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:32:33,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-11-28 12:32:33,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:32:33,113 INFO L225 Difference]: With dead ends: 340 [2018-11-28 12:32:33,113 INFO L226 Difference]: Without dead ends: 265 [2018-11-28 12:32:33,113 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:33,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-11-28 12:32:33,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 236. [2018-11-28 12:32:33,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2018-11-28 12:32:33,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 446 transitions. [2018-11-28 12:32:33,119 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 446 transitions. Word has length 36 [2018-11-28 12:32:33,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:32:33,120 INFO L480 AbstractCegarLoop]: Abstraction has 236 states and 446 transitions. [2018-11-28 12:32:33,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:32:33,120 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 446 transitions. [2018-11-28 12:32:33,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-28 12:32:33,121 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:32:33,121 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:32:33,121 INFO L423 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:32:33,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:32:33,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1252994, now seen corresponding path program 1 times [2018-11-28 12:32:33,121 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:32:33,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:32:33,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:33,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:32:33,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:32:33,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:32:33,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:32:33,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:32:33,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:32:33,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:32:33,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:33,160 INFO L87 Difference]: Start difference. First operand 236 states and 446 transitions. Second operand 3 states. [2018-11-28 12:32:33,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:32:33,168 INFO L93 Difference]: Finished difference Result 228 states and 430 transitions. [2018-11-28 12:32:33,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:32:33,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-11-28 12:32:33,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:32:33,169 INFO L225 Difference]: With dead ends: 228 [2018-11-28 12:32:33,169 INFO L226 Difference]: Without dead ends: 200 [2018-11-28 12:32:33,170 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:33,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-11-28 12:32:33,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2018-11-28 12:32:33,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-11-28 12:32:33,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 377 transitions. [2018-11-28 12:32:33,174 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 377 transitions. Word has length 39 [2018-11-28 12:32:33,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:32:33,175 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 377 transitions. [2018-11-28 12:32:33,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:32:33,175 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 377 transitions. [2018-11-28 12:32:33,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-28 12:32:33,176 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:32:33,176 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:32:33,176 INFO L423 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:32:33,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:32:33,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1344765993, now seen corresponding path program 1 times [2018-11-28 12:32:33,177 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:32:33,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:32:33,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:33,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:32:33,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:32:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:32:33,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:32:33,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:32:33,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:32:33,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:32:33,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:32:33,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:33,208 INFO L87 Difference]: Start difference. First operand 200 states and 377 transitions. Second operand 3 states. [2018-11-28 12:32:33,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:32:33,222 INFO L93 Difference]: Finished difference Result 135 states and 273 transitions. [2018-11-28 12:32:33,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:32:33,223 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-11-28 12:32:33,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:32:33,223 INFO L225 Difference]: With dead ends: 135 [2018-11-28 12:32:33,223 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:32:33,224 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:32:33,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:32:33,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:32:33,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:32:33,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:32:33,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2018-11-28 12:32:33,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:32:33,225 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:32:33,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:32:33,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:32:33,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:32:33,227 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 12:32:33,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:32:33 BasicIcfg [2018-11-28 12:32:33,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:32:33,229 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:32:33,229 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:32:33,229 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:32:33,230 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:32:32" (3/4) ... [2018-11-28 12:32:33,233 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:32:33,239 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2018-11-28 12:32:33,242 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 12:32:33,243 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 12:32:33,276 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9f73142f-0f25-4399-b79f-9bebd25f5c3c/bin-2019/uautomizer/witness.graphml [2018-11-28 12:32:33,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:32:33,277 INFO L168 Benchmark]: Toolchain (without parser) took 1921.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 951.7 MB in the beginning and 944.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 148.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:32:33,278 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:32:33,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:32:33,279 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.94 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:32:33,279 INFO L168 Benchmark]: Boogie Preprocessor took 24.55 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. [2018-11-28 12:32:33,279 INFO L168 Benchmark]: RCFGBuilder took 386.63 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: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:32:33,280 INFO L168 Benchmark]: TraceAbstraction took 1070.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 947.7 MB in the end (delta: 139.5 MB). Peak memory consumption was 139.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:32:33,280 INFO L168 Benchmark]: Witness Printer took 46.98 ms. Allocated memory is still 1.2 GB. Free memory was 947.7 MB in the beginning and 944.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:32:33,282 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 355.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.94 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 386.63 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: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1070.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 947.7 MB in the end (delta: 139.5 MB). Peak memory consumption was 139.5 MB. Max. memory is 11.5 GB. * Witness Printer took 46.98 ms. Allocated memory is still 1.2 GB. Free memory was 947.7 MB in the beginning and 944.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 660]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 660]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 91 locations, 3 error locations. SAFE Result, 0.9s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 774 SDtfs, 277 SDslu, 433 SDs, 0 SdLazy, 85 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=771occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 336 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 12576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...