./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe009_tso.opt_true-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-wmm/safe009_tso.opt_true-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 0e6219a380aa21194fa105cfc2431802d5fe91f5 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 20:42:52,929 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:42:52,931 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:42:52,948 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:42:52,950 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:42:52,951 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:42:52,953 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:42:52,955 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:42:52,959 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:42:52,960 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:42:52,963 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:42:52,964 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:42:52,966 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:42:52,968 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:42:52,977 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:42:52,978 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:42:52,979 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:42:52,980 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:42:52,988 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:42:52,991 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:42:52,992 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:42:52,993 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:42:52,998 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:42:53,000 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:42:53,000 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:42:53,001 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:42:53,002 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:42:53,006 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:42:53,008 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:42:53,010 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:42:53,012 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:42:53,012 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:42:53,013 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:42:53,013 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:42:53,014 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:42:53,017 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:42:53,019 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:42:53,045 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:42:53,045 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:42:53,046 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:42:53,046 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:42:53,047 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:42:53,047 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:42:53,047 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:42:53,048 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:42:53,048 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:42:53,048 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:42:53,048 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:42:53,048 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:42:53,049 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:42:53,049 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:42:53,049 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:42:53,049 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:42:53,049 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:42:53,049 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:42:53,050 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:42:53,050 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:42:53,050 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:42:53,050 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:42:53,050 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:42:53,051 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:42:53,051 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:42:53,051 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:42:53,054 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:42:53,054 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:42:53,054 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:42:53,054 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:42:53,054 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 -> 0e6219a380aa21194fa105cfc2431802d5fe91f5 [2018-11-28 20:42:53,115 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:42:53,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:42:53,139 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:42:53,141 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:42:53,142 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:42:53,142 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe009_tso.opt_true-unreach-call.i [2018-11-28 20:42:53,206 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9974d881a/38633adbdb02494e812ce96f3863d584/FLAGe7f14df6f [2018-11-28 20:42:53,750 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:42:53,750 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe009_tso.opt_true-unreach-call.i [2018-11-28 20:42:53,767 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9974d881a/38633adbdb02494e812ce96f3863d584/FLAGe7f14df6f [2018-11-28 20:42:54,057 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9974d881a/38633adbdb02494e812ce96f3863d584 [2018-11-28 20:42:54,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:42:54,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:42:54,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:42:54,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:42:54,068 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:42:54,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:42:54" (1/1) ... [2018-11-28 20:42:54,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22199964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:54, skipping insertion in model container [2018-11-28 20:42:54,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:42:54" (1/1) ... [2018-11-28 20:42:54,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:42:54,146 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:42:54,582 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:42:54,600 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:42:54,721 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:42:54,813 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:42:54,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:54 WrapperNode [2018-11-28 20:42:54,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:42:54,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:42:54,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:42:54,814 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:42:54,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:54" (1/1) ... [2018-11-28 20:42:54,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:54" (1/1) ... [2018-11-28 20:42:54,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:42:54,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:42:54,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:42:54,871 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:42:54,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:54" (1/1) ... [2018-11-28 20:42:54,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:54" (1/1) ... [2018-11-28 20:42:54,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:54" (1/1) ... [2018-11-28 20:42:54,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:54" (1/1) ... [2018-11-28 20:42:54,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:54" (1/1) ... [2018-11-28 20:42:54,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:54" (1/1) ... [2018-11-28 20:42:54,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:54" (1/1) ... [2018-11-28 20:42:54,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:42:54,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:42:54,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:42:54,898 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:42:54,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:54" (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 20:42:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:42:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:42:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:42:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:42:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:42:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:42:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:42:54,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:42:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:42:54,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:42:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:42:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:42:54,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:42:54,974 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 20:42:55,450 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:42:55,450 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:42:55,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:55 BoogieIcfgContainer [2018-11-28 20:42:55,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:42:55,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:42:55,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:42:55,458 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:42:55,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:42:54" (1/3) ... [2018-11-28 20:42:55,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568bccbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:42:55, skipping insertion in model container [2018-11-28 20:42:55,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:54" (2/3) ... [2018-11-28 20:42:55,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568bccbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:42:55, skipping insertion in model container [2018-11-28 20:42:55,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:55" (3/3) ... [2018-11-28 20:42:55,464 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_tso.opt_true-unreach-call.i [2018-11-28 20:42:55,518 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,519 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,519 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,519 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,520 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,521 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,521 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,521 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,521 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,521 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,523 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,523 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,524 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,524 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,524 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,525 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,525 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,525 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,525 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,525 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,526 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,526 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,526 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,526 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,526 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,527 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,529 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,531 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,531 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,532 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:55,568 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:42:55,568 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:42:55,578 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:42:55,594 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:42:55,619 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:42:55,620 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:42:55,620 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:42:55,620 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:42:55,620 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:42:55,621 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:42:55,621 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:42:55,621 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:42:55,621 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:42:55,631 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55places, 52 transitions [2018-11-28 20:42:55,768 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2018-11-28 20:42:55,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2018-11-28 20:42:55,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-28 20:42:55,799 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:55,803 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] [2018-11-28 20:42:55,805 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:55,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:55,813 INFO L82 PathProgramCache]: Analyzing trace with hash 100325607, now seen corresponding path program 1 times [2018-11-28 20:42:55,815 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:55,816 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:55,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:55,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:55,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:56,267 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 20:42:56,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:56,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:42:56,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:42:56,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:42:56,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:42:56,295 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2018-11-28 20:42:56,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:56,604 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2018-11-28 20:42:56,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:42:56,606 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-11-28 20:42:56,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:56,642 INFO L225 Difference]: With dead ends: 2492 [2018-11-28 20:42:56,642 INFO L226 Difference]: Without dead ends: 1127 [2018-11-28 20:42:56,644 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:42:56,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2018-11-28 20:42:56,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2018-11-28 20:42:56,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2018-11-28 20:42:56,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2018-11-28 20:42:56,795 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2018-11-28 20:42:56,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:56,797 INFO L480 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2018-11-28 20:42:56,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:42:56,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2018-11-28 20:42:56,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 20:42:56,808 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:56,808 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] [2018-11-28 20:42:56,808 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:56,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:56,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1012637439, now seen corresponding path program 1 times [2018-11-28 20:42:56,809 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:56,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:56,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:56,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:56,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:56,994 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 20:42:56,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:56,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:42:56,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:42:56,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:42:56,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:42:56,997 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2018-11-28 20:42:57,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:57,497 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2018-11-28 20:42:57,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:42:57,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-11-28 20:42:57,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:57,512 INFO L225 Difference]: With dead ends: 1167 [2018-11-28 20:42:57,513 INFO L226 Difference]: Without dead ends: 1043 [2018-11-28 20:42:57,514 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:42:57,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2018-11-28 20:42:57,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2018-11-28 20:42:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-11-28 20:42:57,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2018-11-28 20:42:57,554 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2018-11-28 20:42:57,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:57,555 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2018-11-28 20:42:57,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:42:57,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2018-11-28 20:42:57,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:42:57,558 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:57,558 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] [2018-11-28 20:42:57,559 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:57,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:57,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1278569811, now seen corresponding path program 1 times [2018-11-28 20:42:57,559 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:57,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:57,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:57,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:57,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:57,884 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 20:42:57,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:57,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:42:57,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:42:57,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:42:57,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:42:57,886 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2018-11-28 20:42:58,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:58,070 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2018-11-28 20:42:58,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:42:58,071 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-28 20:42:58,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:58,077 INFO L225 Difference]: With dead ends: 819 [2018-11-28 20:42:58,077 INFO L226 Difference]: Without dead ends: 707 [2018-11-28 20:42:58,078 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-28 20:42:58,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-11-28 20:42:58,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2018-11-28 20:42:58,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2018-11-28 20:42:58,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2018-11-28 20:42:58,101 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2018-11-28 20:42:58,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:58,102 INFO L480 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2018-11-28 20:42:58,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:42:58,102 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2018-11-28 20:42:58,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:42:58,104 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:58,104 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] [2018-11-28 20:42:58,105 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:58,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:58,105 INFO L82 PathProgramCache]: Analyzing trace with hash 731663071, now seen corresponding path program 1 times [2018-11-28 20:42:58,105 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:58,106 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:58,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:58,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:58,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:58,333 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 20:42:58,333 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:58,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:42:58,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:42:58,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:42:58,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:42:58,336 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 8 states. [2018-11-28 20:42:58,875 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2018-11-28 20:42:59,310 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2018-11-28 20:42:59,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:59,324 INFO L93 Difference]: Finished difference Result 1187 states and 3490 transitions. [2018-11-28 20:42:59,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:42:59,325 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-11-28 20:42:59,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:59,333 INFO L225 Difference]: With dead ends: 1187 [2018-11-28 20:42:59,334 INFO L226 Difference]: Without dead ends: 671 [2018-11-28 20:42:59,335 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-28 20:42:59,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2018-11-28 20:42:59,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 671. [2018-11-28 20:42:59,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2018-11-28 20:42:59,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1974 transitions. [2018-11-28 20:42:59,363 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1974 transitions. Word has length 32 [2018-11-28 20:42:59,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:59,364 INFO L480 AbstractCegarLoop]: Abstraction has 671 states and 1974 transitions. [2018-11-28 20:42:59,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:42:59,364 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1974 transitions. [2018-11-28 20:42:59,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:42:59,368 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:59,368 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] [2018-11-28 20:42:59,369 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:59,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:59,369 INFO L82 PathProgramCache]: Analyzing trace with hash -360491193, now seen corresponding path program 2 times [2018-11-28 20:42:59,369 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:59,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:59,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:59,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:59,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:59,637 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 20:42:59,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:59,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:42:59,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:42:59,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:42:59,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:42:59,639 INFO L87 Difference]: Start difference. First operand 671 states and 1974 transitions. Second operand 7 states. [2018-11-28 20:42:59,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:59,818 INFO L93 Difference]: Finished difference Result 1055 states and 3158 transitions. [2018-11-28 20:42:59,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:42:59,820 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-11-28 20:42:59,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:59,824 INFO L225 Difference]: With dead ends: 1055 [2018-11-28 20:42:59,824 INFO L226 Difference]: Without dead ends: 555 [2018-11-28 20:42:59,825 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:42:59,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2018-11-28 20:42:59,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2018-11-28 20:42:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2018-11-28 20:42:59,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1670 transitions. [2018-11-28 20:42:59,847 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 1670 transitions. Word has length 32 [2018-11-28 20:42:59,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:59,848 INFO L480 AbstractCegarLoop]: Abstraction has 555 states and 1670 transitions. [2018-11-28 20:42:59,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:42:59,848 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 1670 transitions. [2018-11-28 20:42:59,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:42:59,849 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:59,850 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] [2018-11-28 20:42:59,850 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:59,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:59,850 INFO L82 PathProgramCache]: Analyzing trace with hash -40855097, now seen corresponding path program 3 times [2018-11-28 20:42:59,850 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:59,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:59,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:59,853 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:42:59,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:00,005 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 20:43:00,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:00,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:43:00,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:43:00,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:43:00,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:43:00,007 INFO L87 Difference]: Start difference. First operand 555 states and 1670 transitions. Second operand 6 states. [2018-11-28 20:43:00,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:00,089 INFO L93 Difference]: Finished difference Result 427 states and 1254 transitions. [2018-11-28 20:43:00,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:43:00,089 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-28 20:43:00,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:00,090 INFO L225 Difference]: With dead ends: 427 [2018-11-28 20:43:00,090 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:43:00,090 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-28 20:43:00,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:43:00,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:43:00,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:43:00,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:43:00,091 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-28 20:43:00,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:00,092 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:43:00,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:43:00,092 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:43:00,092 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:43:00,096 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:43:00,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:43:00 BasicIcfg [2018-11-28 20:43:00,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:43:00,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:43:00,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:43:00,099 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:43:00,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:55" (3/4) ... [2018-11-28 20:43:00,104 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:43:00,113 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:43:00,113 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:43:00,113 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:43:00,119 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 20:43:00,119 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:43:00,172 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:43:00,172 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:43:00,173 INFO L168 Benchmark]: Toolchain (without parser) took 6111.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.3 MB in the beginning and 846.5 MB in the end (delta: 96.8 MB). Peak memory consumption was 229.5 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:00,174 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:00,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -163.9 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:00,176 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.96 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 20:43:00,176 INFO L168 Benchmark]: Boogie Preprocessor took 27.17 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:00,177 INFO L168 Benchmark]: RCFGBuilder took 553.35 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:00,178 INFO L168 Benchmark]: TraceAbstraction took 4646.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 846.5 MB in the end (delta: 236.1 MB). Peak memory consumption was 236.1 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:00,178 INFO L168 Benchmark]: Witness Printer took 73.40 ms. Allocated memory is still 1.2 GB. Free memory is still 846.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:00,183 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 749.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -163.9 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.17 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 553.35 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4646.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 846.5 MB in the end (delta: 236.1 MB). Peak memory consumption was 236.1 MB. Max. memory is 11.5 GB. * Witness Printer took 73.40 ms. Allocated memory is still 1.2 GB. Free memory is still 846.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 70 locations, 1 error locations. SAFE Result, 4.4s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 318 SDtfs, 440 SDslu, 836 SDs, 0 SdLazy, 108 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 14324 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 correct! Received shutdown request...