./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe030_tso.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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/safe030_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 0c8fce9252589b7d967772b8af9653738ad549f7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 00:58:20,797 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 00:58:20,800 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 00:58:20,812 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 00:58:20,813 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 00:58:20,814 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 00:58:20,815 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 00:58:20,817 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 00:58:20,819 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 00:58:20,820 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 00:58:20,822 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 00:58:20,822 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 00:58:20,823 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 00:58:20,824 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 00:58:20,826 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 00:58:20,827 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 00:58:20,828 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 00:58:20,830 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 00:58:20,832 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 00:58:20,834 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 00:58:20,835 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 00:58:20,837 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 00:58:20,840 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 00:58:20,840 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 00:58:20,840 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 00:58:20,842 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 00:58:20,843 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 00:58:20,844 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 00:58:20,845 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 00:58:20,847 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 00:58:20,847 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 00:58:20,848 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 00:58:20,848 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 00:58:20,848 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 00:58:20,849 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 00:58:20,851 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 00:58:20,851 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-01 00:58:20,879 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 00:58:20,881 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 00:58:20,887 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 00:58:20,888 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 00:58:20,888 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 00:58:20,889 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 00:58:20,889 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 00:58:20,889 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 00:58:20,889 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 00:58:20,889 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 00:58:20,890 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 00:58:20,890 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 00:58:20,890 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 00:58:20,890 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 00:58:20,890 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 00:58:20,890 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 00:58:20,893 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 00:58:20,893 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 00:58:20,893 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 00:58:20,894 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 00:58:20,894 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 00:58:20,894 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:58:20,894 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 00:58:20,894 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 00:58:20,895 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 00:58:20,895 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 00:58:20,895 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 00:58:20,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 00:58:20,895 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 -> 0c8fce9252589b7d967772b8af9653738ad549f7 [2019-01-01 00:58:20,961 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 00:58:20,976 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 00:58:20,983 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 00:58:20,985 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 00:58:20,985 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 00:58:20,987 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe030_tso.opt_true-unreach-call.i [2019-01-01 00:58:21,044 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5553161/b4377a4315e24c269f06bc856b7eeb81/FLAG633c19f9d [2019-01-01 00:58:21,636 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 00:58:21,637 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe030_tso.opt_true-unreach-call.i [2019-01-01 00:58:21,661 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5553161/b4377a4315e24c269f06bc856b7eeb81/FLAG633c19f9d [2019-01-01 00:58:21,850 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5553161/b4377a4315e24c269f06bc856b7eeb81 [2019-01-01 00:58:21,856 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 00:58:21,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 00:58:21,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 00:58:21,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 00:58:21,864 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 00:58:21,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:58:21" (1/1) ... [2019-01-01 00:58:21,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c017a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:21, skipping insertion in model container [2019-01-01 00:58:21,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:58:21" (1/1) ... [2019-01-01 00:58:21,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 00:58:21,934 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 00:58:22,304 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:58:22,318 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 00:58:22,450 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:58:22,551 INFO L195 MainTranslator]: Completed translation [2019-01-01 00:58:22,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:22 WrapperNode [2019-01-01 00:58:22,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 00:58:22,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 00:58:22,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 00:58:22,553 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 00:58:22,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:22" (1/1) ... [2019-01-01 00:58:22,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:22" (1/1) ... [2019-01-01 00:58:22,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 00:58:22,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 00:58:22,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 00:58:22,617 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 00:58:22,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:22" (1/1) ... [2019-01-01 00:58:22,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:22" (1/1) ... [2019-01-01 00:58:22,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:22" (1/1) ... [2019-01-01 00:58:22,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:22" (1/1) ... [2019-01-01 00:58:22,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:22" (1/1) ... [2019-01-01 00:58:22,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:22" (1/1) ... [2019-01-01 00:58:22,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:22" (1/1) ... [2019-01-01 00:58:22,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 00:58:22,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 00:58:22,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 00:58:22,646 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 00:58:22,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:22" (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 [2019-01-01 00:58:22,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 00:58:22,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-01 00:58:22,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 00:58:22,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 00:58:22,717 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-01 00:58:22,717 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-01 00:58:22,717 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-01 00:58:22,718 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-01 00:58:22,718 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-01 00:58:22,718 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-01 00:58:22,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-01 00:58:22,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 00:58:22,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 00:58:22,721 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-01 00:58:23,238 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 00:58:23,238 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 00:58:23,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:58:23 BoogieIcfgContainer [2019-01-01 00:58:23,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 00:58:23,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 00:58:23,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 00:58:23,247 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 00:58:23,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 12:58:21" (1/3) ... [2019-01-01 00:58:23,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b581c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:58:23, skipping insertion in model container [2019-01-01 00:58:23,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:22" (2/3) ... [2019-01-01 00:58:23,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b581c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:58:23, skipping insertion in model container [2019-01-01 00:58:23,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:58:23" (3/3) ... [2019-01-01 00:58:23,252 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt_true-unreach-call.i [2019-01-01 00:58:23,304 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,305 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,305 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,305 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,306 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,306 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,306 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,307 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,308 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,308 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,308 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,309 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,309 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,309 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,309 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,309 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,310 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,310 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,310 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,310 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,311 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,311 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,311 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,311 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,311 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,312 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,312 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,312 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,312 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,313 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:23,341 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 00:58:23,341 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 00:58:23,350 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-01 00:58:23,369 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-01 00:58:23,396 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 00:58:23,396 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 00:58:23,397 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 00:58:23,397 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 00:58:23,397 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 00:58:23,397 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 00:58:23,397 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 00:58:23,397 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 00:58:23,397 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 00:58:23,408 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54places, 51 transitions [2019-01-01 00:58:23,582 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2383 states. [2019-01-01 00:58:23,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states. [2019-01-01 00:58:23,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-01-01 00:58:23,607 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:23,608 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] [2019-01-01 00:58:23,611 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:23,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:23,619 INFO L82 PathProgramCache]: Analyzing trace with hash 244532871, now seen corresponding path program 1 times [2019-01-01 00:58:23,622 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:23,623 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:23,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:23,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:23,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:24,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:24,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:24,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 00:58:24,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 00:58:24,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 00:58:24,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 00:58:24,033 INFO L87 Difference]: Start difference. First operand 2383 states. Second operand 4 states. [2019-01-01 00:58:24,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:24,236 INFO L93 Difference]: Finished difference Result 2491 states and 8067 transitions. [2019-01-01 00:58:24,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 00:58:24,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-01-01 00:58:24,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:24,273 INFO L225 Difference]: With dead ends: 2491 [2019-01-01 00:58:24,273 INFO L226 Difference]: Without dead ends: 1126 [2019-01-01 00:58:24,275 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 [2019-01-01 00:58:24,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2019-01-01 00:58:24,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2019-01-01 00:58:24,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2019-01-01 00:58:24,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 3556 transitions. [2019-01-01 00:58:24,415 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 3556 transitions. Word has length 28 [2019-01-01 00:58:24,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:24,415 INFO L480 AbstractCegarLoop]: Abstraction has 1126 states and 3556 transitions. [2019-01-01 00:58:24,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 00:58:24,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 3556 transitions. [2019-01-01 00:58:24,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-01-01 00:58:24,420 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:24,421 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] [2019-01-01 00:58:24,421 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:24,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:24,421 INFO L82 PathProgramCache]: Analyzing trace with hash 968273041, now seen corresponding path program 1 times [2019-01-01 00:58:24,422 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:24,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:24,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:24,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:24,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:24,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:24,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:24,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 00:58:24,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 00:58:24,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 00:58:24,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:58:24,572 INFO L87 Difference]: Start difference. First operand 1126 states and 3556 transitions. Second operand 5 states. [2019-01-01 00:58:24,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:24,956 INFO L93 Difference]: Finished difference Result 1166 states and 3550 transitions. [2019-01-01 00:58:24,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:58:24,959 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-01-01 00:58:24,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:24,969 INFO L225 Difference]: With dead ends: 1166 [2019-01-01 00:58:24,969 INFO L226 Difference]: Without dead ends: 1042 [2019-01-01 00:58:24,970 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:58:24,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2019-01-01 00:58:25,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2019-01-01 00:58:25,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2019-01-01 00:58:25,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 3241 transitions. [2019-01-01 00:58:25,012 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 3241 transitions. Word has length 29 [2019-01-01 00:58:25,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:25,012 INFO L480 AbstractCegarLoop]: Abstraction has 1042 states and 3241 transitions. [2019-01-01 00:58:25,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 00:58:25,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 3241 transitions. [2019-01-01 00:58:25,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-01-01 00:58:25,016 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:25,016 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] [2019-01-01 00:58:25,017 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:25,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:25,017 INFO L82 PathProgramCache]: Analyzing trace with hash -747764909, now seen corresponding path program 1 times [2019-01-01 00:58:25,017 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:25,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:25,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:25,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:25,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:25,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:25,200 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:25,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:58:25,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:58:25,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:58:25,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:58:25,202 INFO L87 Difference]: Start difference. First operand 1042 states and 3241 transitions. Second operand 6 states. [2019-01-01 00:58:25,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:25,389 INFO L93 Difference]: Finished difference Result 818 states and 2377 transitions. [2019-01-01 00:58:25,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:58:25,390 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-01-01 00:58:25,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:25,396 INFO L225 Difference]: With dead ends: 818 [2019-01-01 00:58:25,397 INFO L226 Difference]: Without dead ends: 706 [2019-01-01 00:58:25,397 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-01-01 00:58:25,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2019-01-01 00:58:25,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2019-01-01 00:58:25,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2019-01-01 00:58:25,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2065 transitions. [2019-01-01 00:58:25,422 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2065 transitions. Word has length 30 [2019-01-01 00:58:25,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:25,423 INFO L480 AbstractCegarLoop]: Abstraction has 706 states and 2065 transitions. [2019-01-01 00:58:25,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:58:25,423 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2065 transitions. [2019-01-01 00:58:25,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:58:25,425 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:25,426 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] [2019-01-01 00:58:25,426 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:25,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:25,426 INFO L82 PathProgramCache]: Analyzing trace with hash 832052697, now seen corresponding path program 1 times [2019-01-01 00:58:25,426 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:25,428 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:25,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:25,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:25,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:25,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:25,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:25,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:58:25,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:58:25,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:58:25,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:58:25,607 INFO L87 Difference]: Start difference. First operand 706 states and 2065 transitions. Second operand 6 states. [2019-01-01 00:58:25,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:25,859 INFO L93 Difference]: Finished difference Result 1170 states and 3449 transitions. [2019-01-01 00:58:25,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:58:25,862 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-01-01 00:58:25,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:25,867 INFO L225 Difference]: With dead ends: 1170 [2019-01-01 00:58:25,868 INFO L226 Difference]: Without dead ends: 670 [2019-01-01 00:58:25,868 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-01-01 00:58:25,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2019-01-01 00:58:25,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2019-01-01 00:58:25,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2019-01-01 00:58:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1961 transitions. [2019-01-01 00:58:25,892 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1961 transitions. Word has length 31 [2019-01-01 00:58:25,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:25,892 INFO L480 AbstractCegarLoop]: Abstraction has 670 states and 1961 transitions. [2019-01-01 00:58:25,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:58:25,892 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1961 transitions. [2019-01-01 00:58:25,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:58:25,896 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:25,896 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] [2019-01-01 00:58:25,897 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:25,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:25,897 INFO L82 PathProgramCache]: Analyzing trace with hash 735486425, now seen corresponding path program 2 times [2019-01-01 00:58:25,897 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:25,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:25,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:25,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:25,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:26,268 WARN L181 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2019-01-01 00:58:26,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:26,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:26,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-01-01 00:58:26,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-01 00:58:26,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-01 00:58:26,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-01-01 00:58:26,531 INFO L87 Difference]: Start difference. First operand 670 states and 1961 transitions. Second operand 10 states. [2019-01-01 00:58:27,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:27,031 INFO L93 Difference]: Finished difference Result 1054 states and 3145 transitions. [2019-01-01 00:58:27,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-01-01 00:58:27,032 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2019-01-01 00:58:27,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:27,036 INFO L225 Difference]: With dead ends: 1054 [2019-01-01 00:58:27,037 INFO L226 Difference]: Without dead ends: 650 [2019-01-01 00:58:27,037 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-01-01 00:58:27,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2019-01-01 00:58:27,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2019-01-01 00:58:27,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2019-01-01 00:58:27,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 1909 transitions. [2019-01-01 00:58:27,056 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 1909 transitions. Word has length 31 [2019-01-01 00:58:27,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:27,058 INFO L480 AbstractCegarLoop]: Abstraction has 650 states and 1909 transitions. [2019-01-01 00:58:27,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-01 00:58:27,058 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 1909 transitions. [2019-01-01 00:58:27,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:58:27,060 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:27,060 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] [2019-01-01 00:58:27,060 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:27,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:27,061 INFO L82 PathProgramCache]: Analyzing trace with hash 2049017953, now seen corresponding path program 3 times [2019-01-01 00:58:27,061 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:27,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:27,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:27,065 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 00:58:27,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:27,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:27,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:27,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-01-01 00:58:27,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-01 00:58:27,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-01 00:58:27,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-01-01 00:58:27,343 INFO L87 Difference]: Start difference. First operand 650 states and 1909 transitions. Second operand 10 states. [2019-01-01 00:58:27,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:27,522 INFO L93 Difference]: Finished difference Result 522 states and 1493 transitions. [2019-01-01 00:58:27,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-01 00:58:27,522 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2019-01-01 00:58:27,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:27,523 INFO L225 Difference]: With dead ends: 522 [2019-01-01 00:58:27,524 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 00:58:27,524 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-01-01 00:58:27,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 00:58:27,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 00:58:27,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 00:58:27,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 00:58:27,525 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-01-01 00:58:27,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:27,525 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 00:58:27,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-01 00:58:27,525 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 00:58:27,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 00:58:27,529 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-01 00:58:27,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 12:58:27 BasicIcfg [2019-01-01 00:58:27,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 00:58:27,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 00:58:27,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 00:58:27,531 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 00:58:27,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:58:23" (3/4) ... [2019-01-01 00:58:27,537 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 00:58:27,545 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-01 00:58:27,545 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-01 00:58:27,546 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-01 00:58:27,551 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-01 00:58:27,552 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 00:58:27,601 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 00:58:27,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 00:58:27,602 INFO L168 Benchmark]: Toolchain (without parser) took 5744.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 954.0 MB in the beginning and 831.9 MB in the end (delta: 122.1 MB). Peak memory consumption was 257.4 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:27,603 INFO L168 Benchmark]: CDTParser took 0.23 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. [2019-01-01 00:58:27,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -148.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:27,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:58:27,605 INFO L168 Benchmark]: Boogie Preprocessor took 28.37 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:27,606 INFO L168 Benchmark]: RCFGBuilder took 593.33 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:27,607 INFO L168 Benchmark]: TraceAbstraction took 4290.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 831.9 MB in the end (delta: 244.9 MB). Peak memory consumption was 244.9 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:27,608 INFO L168 Benchmark]: Witness Printer took 69.96 ms. Allocated memory is still 1.2 GB. Free memory is still 831.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:58:27,613 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 692.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -148.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.31 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 28.37 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 593.33 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4290.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 831.9 MB in the end (delta: 244.9 MB). Peak memory consumption was 244.9 MB. Max. memory is 11.5 GB. * Witness Printer took 69.96 ms. Allocated memory is still 1.2 GB. Free memory is still 831.9 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, 69 locations, 1 error locations. SAFE Result, 4.1s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 364 SDtfs, 426 SDslu, 1404 SDs, 0 SdLazy, 205 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2383occurred 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, 1.4s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 14706 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...