./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-lit/qw2004_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/pthread-lit/qw2004_false-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 f77846273a11bddcefa25041f1655a63cdf01e31 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 20:44:15,779 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:44:15,781 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:44:15,793 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:44:15,793 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:44:15,795 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:44:15,796 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:44:15,799 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:44:15,801 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:44:15,801 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:44:15,803 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:44:15,803 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:44:15,804 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:44:15,805 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:44:15,807 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:44:15,807 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:44:15,808 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:44:15,811 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:44:15,813 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:44:15,815 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:44:15,816 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:44:15,818 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:44:15,821 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:44:15,821 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:44:15,821 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:44:15,823 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:44:15,824 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:44:15,825 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:44:15,826 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:44:15,827 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:44:15,828 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:44:15,828 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:44:15,829 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:44:15,829 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:44:15,831 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:44:15,832 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:44:15,832 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:44:15,848 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:44:15,849 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:44:15,851 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:44:15,851 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:44:15,852 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:44:15,852 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:44:15,852 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:44:15,853 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:44:15,853 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:44:15,853 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:44:15,853 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:44:15,853 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:44:15,856 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:44:15,857 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:44:15,857 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:44:15,857 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:44:15,857 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:44:15,857 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:44:15,857 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:44:15,858 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:44:15,858 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:44:15,858 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:44:15,858 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:44:15,858 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:44:15,858 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:44:15,862 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:44:15,862 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:44:15,862 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:44:15,862 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:44:15,862 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:44:15,863 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> f77846273a11bddcefa25041f1655a63cdf01e31 [2018-11-28 20:44:15,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:44:15,921 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:44:15,925 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:44:15,927 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:44:15,928 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:44:15,928 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-lit/qw2004_false-unreach-call.i [2018-11-28 20:44:15,992 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c64448854/b3fdd3ed050441b7ad7465655f89e240/FLAGe126b8613 [2018-11-28 20:44:16,609 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:44:16,613 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-lit/qw2004_false-unreach-call.i [2018-11-28 20:44:16,631 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c64448854/b3fdd3ed050441b7ad7465655f89e240/FLAGe126b8613 [2018-11-28 20:44:16,809 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c64448854/b3fdd3ed050441b7ad7465655f89e240 [2018-11-28 20:44:16,812 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:44:16,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:44:16,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:44:16,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:44:16,819 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:44:16,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:44:16" (1/1) ... [2018-11-28 20:44:16,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62e54013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:16, skipping insertion in model container [2018-11-28 20:44:16,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:44:16" (1/1) ... [2018-11-28 20:44:16,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:44:16,879 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:44:17,348 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:44:17,360 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:44:17,424 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:44:17,627 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:44:17,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:17 WrapperNode [2018-11-28 20:44:17,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:44:17,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:44:17,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:44:17,630 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:44:17,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:17" (1/1) ... [2018-11-28 20:44:17,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:17" (1/1) ... [2018-11-28 20:44:17,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:44:17,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:44:17,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:44:17,699 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:44:17,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:17" (1/1) ... [2018-11-28 20:44:17,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:17" (1/1) ... [2018-11-28 20:44:17,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:17" (1/1) ... [2018-11-28 20:44:17,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:17" (1/1) ... [2018-11-28 20:44:17,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:17" (1/1) ... [2018-11-28 20:44:17,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:17" (1/1) ... [2018-11-28 20:44:17,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:17" (1/1) ... [2018-11-28 20:44:17,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:44:17,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:44:17,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:44:17,739 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:44:17,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 20:44:17,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:44:17,824 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2018-11-28 20:44:17,824 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2018-11-28 20:44:17,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:44:17,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:44:17,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:44:17,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:44:17,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:44:17,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:44:17,827 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 20:44:18,405 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:44:18,406 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-11-28 20:44:18,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:44:18 BoogieIcfgContainer [2018-11-28 20:44:18,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:44:18,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:44:18,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:44:18,412 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:44:18,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:44:16" (1/3) ... [2018-11-28 20:44:18,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ede0dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:44:18, skipping insertion in model container [2018-11-28 20:44:18,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:17" (2/3) ... [2018-11-28 20:44:18,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ede0dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:44:18, skipping insertion in model container [2018-11-28 20:44:18,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:44:18" (3/3) ... [2018-11-28 20:44:18,417 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004_false-unreach-call.i [2018-11-28 20:44:18,451 WARN L317 ript$VariableManager]: TermVariabe |Thread0_BCSP_PnpStop_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,452 WARN L317 ript$VariableManager]: TermVariabe |Thread0_BCSP_PnpStop_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,452 WARN L317 ript$VariableManager]: TermVariabe Thread0_BCSP_PnpStop_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,452 WARN L317 ript$VariableManager]: TermVariabe Thread0_BCSP_PnpStop_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,452 WARN L317 ript$VariableManager]: TermVariabe |Thread0_BCSP_PnpStop_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_BCSP_PnpStop_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_BCSP_PnpStop_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_BCSP_PnpStop_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_BCSP_PnpStop_dec_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,454 WARN L317 ript$VariableManager]: TermVariabe Thread0_BCSP_PnpStop_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,455 WARN L317 ript$VariableManager]: TermVariabe Thread0_BCSP_PnpStop_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_BCSP_PnpStop_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_BCSP_PnpStop_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_BCSP_PnpStop_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_BCSP_PnpStop_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_BCSP_PnpStop_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,456 WARN L317 ript$VariableManager]: TermVariabe Thread0_BCSP_PnpStop_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,458 WARN L317 ript$VariableManager]: TermVariabe |Thread0_BCSP_PnpStop_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,458 WARN L317 ript$VariableManager]: TermVariabe Thread0_BCSP_PnpStop_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,458 WARN L317 ript$VariableManager]: TermVariabe Thread0_BCSP_PnpStop_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,459 WARN L317 ript$VariableManager]: TermVariabe |Thread0_BCSP_PnpStop_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,459 WARN L317 ript$VariableManager]: TermVariabe |Thread0_BCSP_PnpStop_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:18,476 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:44:18,477 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:44:18,488 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:44:18,506 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:44:18,531 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:44:18,532 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:44:18,532 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:44:18,532 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:44:18,532 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:44:18,533 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:44:18,533 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:44:18,533 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:44:18,533 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:44:18,545 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75places, 78 transitions [2018-11-28 20:44:18,590 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 771 states. [2018-11-28 20:44:18,592 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states. [2018-11-28 20:44:18,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-28 20:44:18,609 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:18,610 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] [2018-11-28 20:44:18,612 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:18,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:18,618 INFO L82 PathProgramCache]: Analyzing trace with hash -734906715, now seen corresponding path program 1 times [2018-11-28 20:44:18,621 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:18,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:18,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:18,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:18,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:18,868 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 20:44:18,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:18,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 20:44:18,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 20:44:18,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 20:44:18,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 20:44:18,898 INFO L87 Difference]: Start difference. First operand 771 states. Second operand 3 states. [2018-11-28 20:44:19,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:19,013 INFO L93 Difference]: Finished difference Result 1297 states and 2629 transitions. [2018-11-28 20:44:19,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 20:44:19,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2018-11-28 20:44:19,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:19,050 INFO L225 Difference]: With dead ends: 1297 [2018-11-28 20:44:19,051 INFO L226 Difference]: Without dead ends: 617 [2018-11-28 20:44:19,053 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 20:44:19,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2018-11-28 20:44:19,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 409. [2018-11-28 20:44:19,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2018-11-28 20:44:19,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 801 transitions. [2018-11-28 20:44:19,132 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 801 transitions. Word has length 34 [2018-11-28 20:44:19,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:19,133 INFO L480 AbstractCegarLoop]: Abstraction has 409 states and 801 transitions. [2018-11-28 20:44:19,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 20:44:19,134 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 801 transitions. [2018-11-28 20:44:19,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-28 20:44:19,137 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:19,138 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] [2018-11-28 20:44:19,138 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:19,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:19,139 INFO L82 PathProgramCache]: Analyzing trace with hash 324356338, now seen corresponding path program 1 times [2018-11-28 20:44:19,139 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:19,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:19,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:19,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:19,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:19,434 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 20:44:19,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:19,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:44:19,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:44:19,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:44:19,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:44:19,439 INFO L87 Difference]: Start difference. First operand 409 states and 801 transitions. Second operand 5 states. [2018-11-28 20:44:19,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:19,651 INFO L93 Difference]: Finished difference Result 388 states and 751 transitions. [2018-11-28 20:44:19,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:44:19,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-28 20:44:19,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:19,656 INFO L225 Difference]: With dead ends: 388 [2018-11-28 20:44:19,656 INFO L226 Difference]: Without dead ends: 334 [2018-11-28 20:44:19,657 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:44:19,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2018-11-28 20:44:19,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2018-11-28 20:44:19,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-11-28 20:44:19,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 646 transitions. [2018-11-28 20:44:19,678 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 646 transitions. Word has length 35 [2018-11-28 20:44:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:19,678 INFO L480 AbstractCegarLoop]: Abstraction has 334 states and 646 transitions. [2018-11-28 20:44:19,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:44:19,678 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 646 transitions. [2018-11-28 20:44:19,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-28 20:44:19,682 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:19,683 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:44:19,683 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:19,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:19,683 INFO L82 PathProgramCache]: Analyzing trace with hash 328266601, now seen corresponding path program 1 times [2018-11-28 20:44:19,684 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:19,684 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:19,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:19,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:19,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:19,812 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 20:44:19,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:19,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 20:44:19,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 20:44:19,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 20:44:19,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 20:44:19,814 INFO L87 Difference]: Start difference. First operand 334 states and 646 transitions. Second operand 3 states. [2018-11-28 20:44:19,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:19,859 INFO L93 Difference]: Finished difference Result 351 states and 663 transitions. [2018-11-28 20:44:19,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 20:44:19,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-28 20:44:19,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:19,863 INFO L225 Difference]: With dead ends: 351 [2018-11-28 20:44:19,863 INFO L226 Difference]: Without dead ends: 334 [2018-11-28 20:44:19,863 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 20:44:19,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2018-11-28 20:44:19,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2018-11-28 20:44:19,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-11-28 20:44:19,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 629 transitions. [2018-11-28 20:44:19,879 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 629 transitions. Word has length 48 [2018-11-28 20:44:19,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:19,879 INFO L480 AbstractCegarLoop]: Abstraction has 334 states and 629 transitions. [2018-11-28 20:44:19,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 20:44:19,880 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 629 transitions. [2018-11-28 20:44:19,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-28 20:44:19,882 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:19,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:44:19,883 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:19,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:19,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1333971684, now seen corresponding path program 1 times [2018-11-28 20:44:19,884 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:19,884 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:19,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:19,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:19,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:20,044 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 20:44:20,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:20,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:44:20,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:44:20,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:44:20,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:44:20,046 INFO L87 Difference]: Start difference. First operand 334 states and 629 transitions. Second operand 5 states. [2018-11-28 20:44:20,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:20,159 INFO L93 Difference]: Finished difference Result 414 states and 768 transitions. [2018-11-28 20:44:20,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:44:20,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2018-11-28 20:44:20,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:20,163 INFO L225 Difference]: With dead ends: 414 [2018-11-28 20:44:20,164 INFO L226 Difference]: Without dead ends: 318 [2018-11-28 20:44:20,164 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:44:20,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2018-11-28 20:44:20,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2018-11-28 20:44:20,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-11-28 20:44:20,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 582 transitions. [2018-11-28 20:44:20,179 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 582 transitions. Word has length 49 [2018-11-28 20:44:20,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:20,180 INFO L480 AbstractCegarLoop]: Abstraction has 318 states and 582 transitions. [2018-11-28 20:44:20,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:44:20,180 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 582 transitions. [2018-11-28 20:44:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-28 20:44:20,185 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:20,185 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:44:20,186 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:20,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:20,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1092765015, now seen corresponding path program 1 times [2018-11-28 20:44:20,186 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:20,187 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:20,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:20,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:20,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:20,276 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 20:44:20,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:20,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 20:44:20,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 20:44:20,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 20:44:20,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 20:44:20,278 INFO L87 Difference]: Start difference. First operand 318 states and 582 transitions. Second operand 3 states. [2018-11-28 20:44:20,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:20,316 INFO L93 Difference]: Finished difference Result 318 states and 566 transitions. [2018-11-28 20:44:20,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 20:44:20,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2018-11-28 20:44:20,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:20,320 INFO L225 Difference]: With dead ends: 318 [2018-11-28 20:44:20,320 INFO L226 Difference]: Without dead ends: 190 [2018-11-28 20:44:20,321 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 20:44:20,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-11-28 20:44:20,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2018-11-28 20:44:20,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-11-28 20:44:20,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 326 transitions. [2018-11-28 20:44:20,329 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 326 transitions. Word has length 50 [2018-11-28 20:44:20,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:20,329 INFO L480 AbstractCegarLoop]: Abstraction has 190 states and 326 transitions. [2018-11-28 20:44:20,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 20:44:20,331 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 326 transitions. [2018-11-28 20:44:20,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-28 20:44:20,337 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:20,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:44:20,337 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:20,337 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:20,338 INFO L82 PathProgramCache]: Analyzing trace with hash -173045851, now seen corresponding path program 2 times [2018-11-28 20:44:20,339 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:20,339 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:20,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:20,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:20,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:20,780 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 20:44:20,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:20,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:44:20,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:44:20,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:44:20,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:44:20,782 INFO L87 Difference]: Start difference. First operand 190 states and 326 transitions. Second operand 8 states. [2018-11-28 20:44:21,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:21,159 INFO L93 Difference]: Finished difference Result 232 states and 397 transitions. [2018-11-28 20:44:21,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 20:44:21,161 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2018-11-28 20:44:21,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:21,162 INFO L225 Difference]: With dead ends: 232 [2018-11-28 20:44:21,163 INFO L226 Difference]: Without dead ends: 148 [2018-11-28 20:44:21,163 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-11-28 20:44:21,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-28 20:44:21,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-11-28 20:44:21,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-11-28 20:44:21,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 242 transitions. [2018-11-28 20:44:21,169 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 242 transitions. Word has length 50 [2018-11-28 20:44:21,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:21,171 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 242 transitions. [2018-11-28 20:44:21,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:44:21,171 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 242 transitions. [2018-11-28 20:44:21,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-28 20:44:21,172 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:21,172 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:44:21,172 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:21,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:21,175 INFO L82 PathProgramCache]: Analyzing trace with hash -2106976045, now seen corresponding path program 3 times [2018-11-28 20:44:21,175 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:21,175 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:21,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:21,179 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:44:21,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 20:44:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 20:44:21,250 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 20:44:21,340 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:44:21,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:44:21 BasicIcfg [2018-11-28 20:44:21,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:44:21,343 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:44:21,343 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:44:21,343 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:44:21,344 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:44:18" (3/4) ... [2018-11-28 20:44:21,347 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 20:44:21,467 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:44:21,468 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:44:21,472 INFO L168 Benchmark]: Toolchain (without parser) took 4656.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 952.7 MB in the beginning and 945.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 143.3 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:21,474 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:44:21,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 813.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -163.3 MB). Peak memory consumption was 42.9 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:21,476 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.21 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:21,477 INFO L168 Benchmark]: Boogie Preprocessor took 39.88 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 20:44:21,479 INFO L168 Benchmark]: RCFGBuilder took 667.60 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:21,479 INFO L168 Benchmark]: TraceAbstraction took 2934.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 952.6 MB in the end (delta: 131.1 MB). Peak memory consumption was 131.1 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:21,480 INFO L168 Benchmark]: Witness Printer took 124.71 ms. Allocated memory is still 1.2 GB. Free memory was 952.6 MB in the beginning and 945.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:21,488 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 813.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -163.3 MB). Peak memory consumption was 42.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.21 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.88 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 667.60 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2934.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 952.6 MB in the end (delta: 131.1 MB). Peak memory consumption was 131.1 MB. Max. memory is 11.5 GB. * Witness Printer took 124.71 ms. Allocated memory is still 1.2 GB. Free memory was 952.6 MB in the beginning and 945.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 653]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L660] -1 volatile int stoppingFlag; VAL [stoppingFlag=0] [L661] -1 volatile int pendingIo; VAL [pendingIo=0, stoppingFlag=0] [L662] -1 volatile int stoppingEvent; VAL [pendingIo=0, stoppingEvent=0, stoppingFlag=0] [L663] -1 volatile int stopped; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0] [L703] -1 pthread_t t; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0] [L704] -1 pendingIo = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L705] -1 stoppingFlag = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L706] -1 stoppingEvent = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L707] -1 stopped = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L708] FCALL, FORK -1 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L687] -1 int status; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L665] COND FALSE -1 !(\read(stoppingFlag)) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L696] 0 stoppingFlag = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L680] 0 int pending; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L674] 0 pendingIo-- [L675] 0 int tmp = pendingIo; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L668] -1 pendingIo = pendingIo + 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L670] -1 return 0; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L688] -1 status = BCSP_IoIncrement() VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L689] COND TRUE -1 status == 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L677] 0 return tmp; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L681] 0 pending = dec() VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L682] COND TRUE 0 pending == 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L683] 0 stoppingEvent = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=1, stoppingFlag=1] [L699] 0 stopped = 1 VAL [pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] [L652] COND TRUE -1 !(cond) VAL [pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] [L653] -1 __VERIFIER_error() VAL [pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 93 locations, 1 error locations. UNSAFE Result, 2.8s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 482 SDtfs, 265 SDslu, 851 SDs, 0 SdLazy, 96 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s 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, 6 MinimizatonAttempts, 208 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 22264 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...