./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe024_tso.oepc_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/safe024_tso.oepc_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 8454022e837799c63eb994d265217050068eba69 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:57:55,608 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 00:57:55,610 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 00:57:55,629 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 00:57:55,630 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 00:57:55,631 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 00:57:55,633 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 00:57:55,635 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 00:57:55,638 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 00:57:55,640 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 00:57:55,643 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 00:57:55,643 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 00:57:55,645 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 00:57:55,648 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 00:57:55,654 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 00:57:55,657 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 00:57:55,658 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 00:57:55,664 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 00:57:55,666 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 00:57:55,670 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 00:57:55,672 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 00:57:55,673 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 00:57:55,678 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 00:57:55,678 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 00:57:55,678 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 00:57:55,679 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 00:57:55,682 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 00:57:55,683 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 00:57:55,685 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 00:57:55,688 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 00:57:55,688 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 00:57:55,690 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 00:57:55,690 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 00:57:55,690 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 00:57:55,691 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 00:57:55,693 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 00:57:55,693 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-01 00:57:55,720 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 00:57:55,720 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 00:57:55,722 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 00:57:55,722 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 00:57:55,722 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 00:57:55,722 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 00:57:55,723 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 00:57:55,723 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 00:57:55,723 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 00:57:55,723 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 00:57:55,723 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 00:57:55,723 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 00:57:55,724 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 00:57:55,724 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 00:57:55,724 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 00:57:55,724 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 00:57:55,724 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 00:57:55,724 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 00:57:55,725 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 00:57:55,725 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 00:57:55,725 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 00:57:55,725 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:57:55,725 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 00:57:55,726 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 00:57:55,726 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 00:57:55,726 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 00:57:55,726 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 00:57:55,726 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 00:57:55,726 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 -> 8454022e837799c63eb994d265217050068eba69 [2019-01-01 00:57:55,776 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 00:57:55,791 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 00:57:55,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 00:57:55,799 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 00:57:55,799 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 00:57:55,800 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe024_tso.oepc_true-unreach-call.i [2019-01-01 00:57:55,865 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e8e7121b/7932aa46de3a46209eb9b5eac81fe9a9/FLAG2d7ab31fb [2019-01-01 00:57:56,434 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 00:57:56,435 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe024_tso.oepc_true-unreach-call.i [2019-01-01 00:57:56,450 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e8e7121b/7932aa46de3a46209eb9b5eac81fe9a9/FLAG2d7ab31fb [2019-01-01 00:57:56,702 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e8e7121b/7932aa46de3a46209eb9b5eac81fe9a9 [2019-01-01 00:57:56,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 00:57:56,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 00:57:56,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 00:57:56,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 00:57:56,714 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 00:57:56,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:57:56" (1/1) ... [2019-01-01 00:57:56,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@422ea0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:56, skipping insertion in model container [2019-01-01 00:57:56,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:57:56" (1/1) ... [2019-01-01 00:57:56,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 00:57:56,797 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 00:57:57,248 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:57:57,262 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 00:57:57,466 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:57:57,589 INFO L195 MainTranslator]: Completed translation [2019-01-01 00:57:57,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:57 WrapperNode [2019-01-01 00:57:57,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 00:57:57,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 00:57:57,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 00:57:57,592 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 00:57:57,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:57" (1/1) ... [2019-01-01 00:57:57,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:57" (1/1) ... [2019-01-01 00:57:57,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 00:57:57,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 00:57:57,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 00:57:57,667 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 00:57:57,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:57" (1/1) ... [2019-01-01 00:57:57,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:57" (1/1) ... [2019-01-01 00:57:57,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:57" (1/1) ... [2019-01-01 00:57:57,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:57" (1/1) ... [2019-01-01 00:57:57,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:57" (1/1) ... [2019-01-01 00:57:57,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:57" (1/1) ... [2019-01-01 00:57:57,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:57" (1/1) ... [2019-01-01 00:57:57,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 00:57:57,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 00:57:57,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 00:57:57,720 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 00:57:57,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:57" (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 00:57:57,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 00:57:57,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-01 00:57:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 00:57:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 00:57:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-01 00:57:57,815 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-01 00:57:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-01 00:57:57,815 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-01 00:57:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-01 00:57:57,816 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-01 00:57:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-01 00:57:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 00:57:57,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 00:57:57,821 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 00:57:58,302 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 00:57:58,303 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 00:57:58,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:57:58 BoogieIcfgContainer [2019-01-01 00:57:58,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 00:57:58,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 00:57:58,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 00:57:58,309 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 00:57:58,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 12:57:56" (1/3) ... [2019-01-01 00:57:58,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68631adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:57:58, skipping insertion in model container [2019-01-01 00:57:58,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:57" (2/3) ... [2019-01-01 00:57:58,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68631adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:57:58, skipping insertion in model container [2019-01-01 00:57:58,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:57:58" (3/3) ... [2019-01-01 00:57:58,313 INFO L112 eAbstractionObserver]: Analyzing ICFG safe024_tso.oepc_true-unreach-call.i [2019-01-01 00:57:58,349 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,349 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,349 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,350 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,350 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,350 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,350 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,350 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,351 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,351 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,351 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,351 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,351 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,352 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,352 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,352 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,352 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,352 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,353 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,353 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,353 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,353 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,353 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,353 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,354 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,354 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,354 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,354 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,354 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,355 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:58,381 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 00:57:58,382 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 00:57:58,390 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-01 00:57:58,409 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-01 00:57:58,432 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 00:57:58,433 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 00:57:58,433 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 00:57:58,433 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 00:57:58,433 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 00:57:58,433 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 00:57:58,433 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 00:57:58,433 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 00:57:58,434 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 00:57:58,444 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57places, 54 transitions [2019-01-01 00:57:58,591 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2386 states. [2019-01-01 00:57:58,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states. [2019-01-01 00:57:58,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:57:58,620 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:57:58,624 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 00:57:58,627 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:57:58,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:57:58,633 INFO L82 PathProgramCache]: Analyzing trace with hash 552035095, now seen corresponding path program 1 times [2019-01-01 00:57:58,636 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:57:58,637 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:57:58,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:58,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:57:58,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:57:59,020 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 00:57:59,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:57:59,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 00:57:59,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 00:57:59,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 00:57:59,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 00:57:59,046 INFO L87 Difference]: Start difference. First operand 2386 states. Second operand 4 states. [2019-01-01 00:57:59,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:57:59,307 INFO L93 Difference]: Finished difference Result 2494 states and 8070 transitions. [2019-01-01 00:57:59,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 00:57:59,310 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-01-01 00:57:59,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:57:59,349 INFO L225 Difference]: With dead ends: 2494 [2019-01-01 00:57:59,350 INFO L226 Difference]: Without dead ends: 1129 [2019-01-01 00:57:59,353 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 00:57:59,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2019-01-01 00:57:59,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2019-01-01 00:57:59,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2019-01-01 00:57:59,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 3559 transitions. [2019-01-01 00:57:59,502 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 3559 transitions. Word has length 31 [2019-01-01 00:57:59,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:57:59,504 INFO L480 AbstractCegarLoop]: Abstraction has 1129 states and 3559 transitions. [2019-01-01 00:57:59,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 00:57:59,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 3559 transitions. [2019-01-01 00:57:59,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-01 00:57:59,515 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:57:59,516 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:57:59,516 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:57:59,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:57:59,517 INFO L82 PathProgramCache]: Analyzing trace with hash 561207845, now seen corresponding path program 1 times [2019-01-01 00:57:59,517 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:57:59,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:57:59,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:59,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:57:59,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:57:59,749 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 00:57:59,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:57:59,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 00:57:59,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 00:57:59,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 00:57:59,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:57:59,752 INFO L87 Difference]: Start difference. First operand 1129 states and 3559 transitions. Second operand 5 states. [2019-01-01 00:58:00,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:00,336 INFO L93 Difference]: Finished difference Result 1169 states and 3553 transitions. [2019-01-01 00:58:00,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:58:00,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-01-01 00:58:00,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:00,350 INFO L225 Difference]: With dead ends: 1169 [2019-01-01 00:58:00,351 INFO L226 Difference]: Without dead ends: 1045 [2019-01-01 00:58:00,352 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 [2019-01-01 00:58:00,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-01-01 00:58:00,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2019-01-01 00:58:00,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2019-01-01 00:58:00,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3244 transitions. [2019-01-01 00:58:00,403 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3244 transitions. Word has length 32 [2019-01-01 00:58:00,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:00,404 INFO L480 AbstractCegarLoop]: Abstraction has 1045 states and 3244 transitions. [2019-01-01 00:58:00,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 00:58:00,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3244 transitions. [2019-01-01 00:58:00,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:58:00,409 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:00,410 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:58:00,410 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:00,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:00,412 INFO L82 PathProgramCache]: Analyzing trace with hash 225841121, now seen corresponding path program 1 times [2019-01-01 00:58:00,412 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:00,412 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:00,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:00,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:00,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:00,652 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 00:58:00,653 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:00,653 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:58:00,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:58:00,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:58:00,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:58:00,655 INFO L87 Difference]: Start difference. First operand 1045 states and 3244 transitions. Second operand 6 states. [2019-01-01 00:58:00,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:00,948 INFO L93 Difference]: Finished difference Result 821 states and 2380 transitions. [2019-01-01 00:58:00,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:58:00,953 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-01-01 00:58:00,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:00,960 INFO L225 Difference]: With dead ends: 821 [2019-01-01 00:58:00,960 INFO L226 Difference]: Without dead ends: 709 [2019-01-01 00:58:00,961 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 00:58:00,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2019-01-01 00:58:00,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2019-01-01 00:58:00,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-01-01 00:58:00,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 2068 transitions. [2019-01-01 00:58:00,987 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 2068 transitions. Word has length 33 [2019-01-01 00:58:00,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:00,987 INFO L480 AbstractCegarLoop]: Abstraction has 709 states and 2068 transitions. [2019-01-01 00:58:00,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:58:00,988 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 2068 transitions. [2019-01-01 00:58:00,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:58:00,991 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:00,991 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:58:00,991 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:00,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:00,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1721829239, now seen corresponding path program 1 times [2019-01-01 00:58:00,992 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:00,992 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:00,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:00,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:00,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:01,381 WARN L181 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-01-01 00:58:01,577 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 00:58:01,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:01,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 00:58:01,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 00:58:01,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 00:58:01,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-01-01 00:58:01,579 INFO L87 Difference]: Start difference. First operand 709 states and 2068 transitions. Second operand 8 states. [2019-01-01 00:58:02,012 WARN L181 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2019-01-01 00:58:02,382 WARN L181 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2019-01-01 00:58:02,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:02,426 INFO L93 Difference]: Finished difference Result 1109 states and 3292 transitions. [2019-01-01 00:58:02,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-01 00:58:02,427 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-01-01 00:58:02,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:02,432 INFO L225 Difference]: With dead ends: 1109 [2019-01-01 00:58:02,433 INFO L226 Difference]: Without dead ends: 593 [2019-01-01 00:58:02,433 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-01-01 00:58:02,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-01-01 00:58:02,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2019-01-01 00:58:02,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2019-01-01 00:58:02,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1756 transitions. [2019-01-01 00:58:02,457 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1756 transitions. Word has length 34 [2019-01-01 00:58:02,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:02,458 INFO L480 AbstractCegarLoop]: Abstraction has 593 states and 1756 transitions. [2019-01-01 00:58:02,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 00:58:02,458 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1756 transitions. [2019-01-01 00:58:02,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:58:02,461 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:02,461 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:58:02,461 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:02,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:02,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1415137353, now seen corresponding path program 2 times [2019-01-01 00:58:02,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:02,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:02,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:02,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:02,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:02,716 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 00:58:02,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:02,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 00:58:02,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 00:58:02,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 00:58:02,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:58:02,718 INFO L87 Difference]: Start difference. First operand 593 states and 1756 transitions. Second operand 7 states. [2019-01-01 00:58:03,136 WARN L181 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-01-01 00:58:03,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:03,269 INFO L93 Difference]: Finished difference Result 977 states and 2940 transitions. [2019-01-01 00:58:03,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:58:03,271 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-01-01 00:58:03,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:03,276 INFO L225 Difference]: With dead ends: 977 [2019-01-01 00:58:03,277 INFO L226 Difference]: Without dead ends: 557 [2019-01-01 00:58:03,277 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-01-01 00:58:03,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-01-01 00:58:03,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2019-01-01 00:58:03,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2019-01-01 00:58:03,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1672 transitions. [2019-01-01 00:58:03,294 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1672 transitions. Word has length 34 [2019-01-01 00:58:03,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:03,295 INFO L480 AbstractCegarLoop]: Abstraction has 557 states and 1672 transitions. [2019-01-01 00:58:03,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 00:58:03,295 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1672 transitions. [2019-01-01 00:58:03,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:58:03,297 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:03,298 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:58:03,298 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:03,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:03,299 INFO L82 PathProgramCache]: Analyzing trace with hash 251572495, now seen corresponding path program 3 times [2019-01-01 00:58:03,299 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:03,299 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:03,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:03,303 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 00:58:03,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:03,500 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 00:58:03,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:03,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 00:58:03,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 00:58:03,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 00:58:03,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-01-01 00:58:03,502 INFO L87 Difference]: Start difference. First operand 557 states and 1672 transitions. Second operand 8 states. [2019-01-01 00:58:03,967 WARN L181 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2019-01-01 00:58:03,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:03,972 INFO L93 Difference]: Finished difference Result 429 states and 1256 transitions. [2019-01-01 00:58:03,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-01 00:58:03,973 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-01-01 00:58:03,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:03,973 INFO L225 Difference]: With dead ends: 429 [2019-01-01 00:58:03,973 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 00:58:03,974 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2019-01-01 00:58:03,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 00:58:03,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 00:58:03,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 00:58:03,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 00:58:03,975 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-01-01 00:58:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:03,975 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 00:58:03,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 00:58:03,975 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 00:58:03,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 00:58:03,979 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-01 00:58:03,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 12:58:03 BasicIcfg [2019-01-01 00:58:03,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 00:58:03,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 00:58:03,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 00:58:03,981 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 00:58:03,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:57:58" (3/4) ... [2019-01-01 00:58:03,986 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 00:58:03,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-01 00:58:03,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-01 00:58:03,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-01 00:58:03,998 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-01 00:58:03,998 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 00:58:04,050 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 00:58:04,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 00:58:04,051 INFO L168 Benchmark]: Toolchain (without parser) took 7344.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 952.7 MB in the beginning and 768.4 MB in the end (delta: 184.2 MB). Peak memory consumption was 265.5 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:04,053 INFO L168 Benchmark]: CDTParser took 0.17 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 00:58:04,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 881.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -98.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:04,054 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.32 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:58:04,055 INFO L168 Benchmark]: Boogie Preprocessor took 51.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:58:04,055 INFO L168 Benchmark]: RCFGBuilder took 584.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:04,057 INFO L168 Benchmark]: TraceAbstraction took 5675.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 768.4 MB in the end (delta: 255.1 MB). Peak memory consumption was 255.1 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:04,058 INFO L168 Benchmark]: Witness Printer took 69.39 ms. Allocated memory is still 1.1 GB. Free memory is still 768.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:58:04,062 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 881.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -98.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.32 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 584.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5675.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 768.4 MB in the end (delta: 255.1 MB). Peak memory consumption was 255.1 MB. Max. memory is 11.5 GB. * Witness Printer took 69.39 ms. Allocated memory is still 1.1 GB. Free memory is still 768.4 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, 72 locations, 1 error locations. SAFE Result, 5.5s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 364 SDtfs, 512 SDslu, 1011 SDs, 0 SdLazy, 109 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2386occurred 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, 1.5s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 16329 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...