./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe020_pso.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f 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/safe020_pso.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 cf11dc2c0dcdaf487958c9a5ab0d668b271e1541 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-13 05:50:42,709 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 05:50:42,712 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 05:50:42,727 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 05:50:42,728 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 05:50:42,730 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 05:50:42,734 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 05:50:42,737 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 05:50:42,738 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 05:50:42,739 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 05:50:42,740 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 05:50:42,741 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 05:50:42,742 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 05:50:42,743 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 05:50:42,744 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 05:50:42,745 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 05:50:42,747 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 05:50:42,749 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 05:50:42,751 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 05:50:42,753 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 05:50:42,755 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 05:50:42,759 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 05:50:42,764 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 05:50:42,764 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 05:50:42,764 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 05:50:42,767 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 05:50:42,771 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 05:50:42,772 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 05:50:42,776 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 05:50:42,777 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 05:50:42,777 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 05:50:42,780 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 05:50:42,780 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 05:50:42,780 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 05:50:42,781 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 05:50:42,782 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 05:50:42,782 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-13 05:50:42,811 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 05:50:42,812 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 05:50:42,813 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 05:50:42,814 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 05:50:42,814 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 05:50:42,814 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 05:50:42,814 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-13 05:50:42,814 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 05:50:42,815 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-13 05:50:42,815 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 05:50:42,815 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-13 05:50:42,815 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 05:50:42,815 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-13 05:50:42,816 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-13 05:50:42,817 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-13 05:50:42,817 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 05:50:42,817 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-13 05:50:42,817 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 05:50:42,817 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 05:50:42,818 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 05:50:42,818 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 05:50:42,818 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 05:50:42,818 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 05:50:42,818 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 05:50:42,819 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-13 05:50:42,820 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 05:50:42,820 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 05:50:42,820 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-13 05:50:42,820 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 -> cf11dc2c0dcdaf487958c9a5ab0d668b271e1541 [2019-01-13 05:50:42,883 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 05:50:42,900 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 05:50:42,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 05:50:42,909 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 05:50:42,909 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 05:50:42,910 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe020_pso.opt_true-unreach-call.i [2019-01-13 05:50:42,974 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2fe2efca/b710fcbd64c543b092b18d87677308ed/FLAG6c3dd7b63 [2019-01-13 05:50:43,471 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 05:50:43,472 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe020_pso.opt_true-unreach-call.i [2019-01-13 05:50:43,491 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2fe2efca/b710fcbd64c543b092b18d87677308ed/FLAG6c3dd7b63 [2019-01-13 05:50:43,798 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2fe2efca/b710fcbd64c543b092b18d87677308ed [2019-01-13 05:50:43,802 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 05:50:43,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-13 05:50:43,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 05:50:43,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 05:50:43,810 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 05:50:43,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 05:50:43" (1/1) ... [2019-01-13 05:50:43,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5329403d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:43, skipping insertion in model container [2019-01-13 05:50:43,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 05:50:43" (1/1) ... [2019-01-13 05:50:43,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 05:50:43,874 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 05:50:44,307 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 05:50:44,320 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 05:50:44,463 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 05:50:44,545 INFO L195 MainTranslator]: Completed translation [2019-01-13 05:50:44,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:44 WrapperNode [2019-01-13 05:50:44,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 05:50:44,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-13 05:50:44,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-13 05:50:44,547 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-13 05:50:44,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:44" (1/1) ... [2019-01-13 05:50:44,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:44" (1/1) ... [2019-01-13 05:50:44,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-13 05:50:44,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 05:50:44,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 05:50:44,622 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 05:50:44,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:44" (1/1) ... [2019-01-13 05:50:44,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:44" (1/1) ... [2019-01-13 05:50:44,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:44" (1/1) ... [2019-01-13 05:50:44,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:44" (1/1) ... [2019-01-13 05:50:44,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:44" (1/1) ... [2019-01-13 05:50:44,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:44" (1/1) ... [2019-01-13 05:50:44,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:44" (1/1) ... [2019-01-13 05:50:44,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 05:50:44,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 05:50:44,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 05:50:44,683 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 05:50:44,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:44" (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 [2019-01-13 05:50:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-13 05:50:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-13 05:50:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 05:50:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 05:50:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-13 05:50:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-13 05:50:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-13 05:50:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-13 05:50:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-13 05:50:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-13 05:50:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-13 05:50:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 05:50:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 05:50:44,754 WARN L204 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-13 05:50:45,202 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 05:50:45,203 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-13 05:50:45,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:50:45 BoogieIcfgContainer [2019-01-13 05:50:45,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 05:50:45,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 05:50:45,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 05:50:45,215 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 05:50:45,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 05:50:43" (1/3) ... [2019-01-13 05:50:45,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c711877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 05:50:45, skipping insertion in model container [2019-01-13 05:50:45,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:44" (2/3) ... [2019-01-13 05:50:45,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c711877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 05:50:45, skipping insertion in model container [2019-01-13 05:50:45,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:50:45" (3/3) ... [2019-01-13 05:50:45,220 INFO L112 eAbstractionObserver]: Analyzing ICFG safe020_pso.opt_true-unreach-call.i [2019-01-13 05:50:45,270 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,271 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,271 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,271 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,272 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,273 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,274 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,274 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,274 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,274 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,276 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,277 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,277 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,279 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,279 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,279 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,279 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,279 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,281 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,281 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,282 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,282 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,283 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,283 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,283 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,285 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,285 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,285 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,285 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,285 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:45,320 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-13 05:50:45,320 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 05:50:45,330 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-13 05:50:45,344 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-13 05:50:45,365 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 05:50:45,366 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 05:50:45,366 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-13 05:50:45,366 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 05:50:45,366 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 05:50:45,366 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 05:50:45,366 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 05:50:45,367 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 05:50:45,367 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 05:50:45,376 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55places, 52 transitions [2019-01-13 05:50:45,511 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2019-01-13 05:50:45,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2019-01-13 05:50:45,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-01-13 05:50:45,544 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:45,545 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] [2019-01-13 05:50:45,548 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:45,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:45,556 INFO L82 PathProgramCache]: Analyzing trace with hash -2034524401, now seen corresponding path program 1 times [2019-01-13 05:50:45,558 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:45,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:45,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:45,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:45,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:45,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:45,893 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:45,893 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 05:50:45,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-13 05:50:45,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-13 05:50:45,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-13 05:50:45,913 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2019-01-13 05:50:46,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:46,225 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2019-01-13 05:50:46,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 05:50:46,227 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-01-13 05:50:46,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:46,260 INFO L225 Difference]: With dead ends: 2492 [2019-01-13 05:50:46,260 INFO L226 Difference]: Without dead ends: 1127 [2019-01-13 05:50:46,262 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-13 05:50:46,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2019-01-13 05:50:46,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2019-01-13 05:50:46,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2019-01-13 05:50:46,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2019-01-13 05:50:46,435 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2019-01-13 05:50:46,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:46,435 INFO L480 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2019-01-13 05:50:46,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-13 05:50:46,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2019-01-13 05:50:46,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-01-13 05:50:46,441 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:46,442 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] [2019-01-13 05:50:46,442 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:46,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:46,442 INFO L82 PathProgramCache]: Analyzing trace with hash -35343599, now seen corresponding path program 1 times [2019-01-13 05:50:46,443 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:46,443 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:46,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:46,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:46,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:46,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:46,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:46,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-13 05:50:46,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 05:50:46,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 05:50:46,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-13 05:50:46,598 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2019-01-13 05:50:47,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:47,131 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2019-01-13 05:50:47,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-13 05:50:47,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-01-13 05:50:47,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:47,143 INFO L225 Difference]: With dead ends: 1167 [2019-01-13 05:50:47,143 INFO L226 Difference]: Without dead ends: 1043 [2019-01-13 05:50:47,144 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 [2019-01-13 05:50:47,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2019-01-13 05:50:47,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2019-01-13 05:50:47,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2019-01-13 05:50:47,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2019-01-13 05:50:47,189 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2019-01-13 05:50:47,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:47,189 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2019-01-13 05:50:47,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 05:50:47,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2019-01-13 05:50:47,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-13 05:50:47,193 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:47,193 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] [2019-01-13 05:50:47,194 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:47,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:47,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1463535297, now seen corresponding path program 1 times [2019-01-13 05:50:47,194 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:47,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:47,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:47,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:47,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:47,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:47,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:47,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-13 05:50:47,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-13 05:50:47,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-13 05:50:47,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-13 05:50:47,466 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2019-01-13 05:50:47,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:47,704 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2019-01-13 05:50:47,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 05:50:47,705 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-01-13 05:50:47,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:47,711 INFO L225 Difference]: With dead ends: 819 [2019-01-13 05:50:47,711 INFO L226 Difference]: Without dead ends: 707 [2019-01-13 05:50:47,712 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 [2019-01-13 05:50:47,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-01-13 05:50:47,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2019-01-13 05:50:47,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2019-01-13 05:50:47,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2019-01-13 05:50:47,738 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2019-01-13 05:50:47,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:47,738 INFO L480 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2019-01-13 05:50:47,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-13 05:50:47,738 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2019-01-13 05:50:47,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-13 05:50:47,740 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:47,741 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] [2019-01-13 05:50:47,741 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:47,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:47,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1549733045, now seen corresponding path program 1 times [2019-01-13 05:50:47,742 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:47,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:47,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:47,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:47,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:48,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:48,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:48,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-01-13 05:50:48,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-13 05:50:48,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-13 05:50:48,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-01-13 05:50:48,091 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 10 states. [2019-01-13 05:50:48,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:48,948 INFO L93 Difference]: Finished difference Result 1107 states and 3290 transitions. [2019-01-13 05:50:48,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-01-13 05:50:48,948 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2019-01-13 05:50:48,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:48,953 INFO L225 Difference]: With dead ends: 1107 [2019-01-13 05:50:48,953 INFO L226 Difference]: Without dead ends: 591 [2019-01-13 05:50:48,954 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2019-01-13 05:50:48,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2019-01-13 05:50:48,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2019-01-13 05:50:48,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-01-13 05:50:48,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1754 transitions. [2019-01-13 05:50:48,976 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1754 transitions. Word has length 32 [2019-01-13 05:50:48,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:48,977 INFO L480 AbstractCegarLoop]: Abstraction has 591 states and 1754 transitions. [2019-01-13 05:50:48,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-13 05:50:48,977 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1754 transitions. [2019-01-13 05:50:48,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-13 05:50:48,979 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:48,979 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] [2019-01-13 05:50:48,980 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:48,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:48,980 INFO L82 PathProgramCache]: Analyzing trace with hash -813130677, now seen corresponding path program 2 times [2019-01-13 05:50:48,980 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:48,980 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:48,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:48,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:48,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:49,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:49,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:49,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-01-13 05:50:49,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-13 05:50:49,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-13 05:50:49,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-01-13 05:50:49,589 INFO L87 Difference]: Start difference. First operand 591 states and 1754 transitions. Second operand 10 states. [2019-01-13 05:50:49,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:49,904 INFO L93 Difference]: Finished difference Result 991 states and 2978 transitions. [2019-01-13 05:50:49,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-01-13 05:50:49,905 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2019-01-13 05:50:49,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:49,909 INFO L225 Difference]: With dead ends: 991 [2019-01-13 05:50:49,909 INFO L226 Difference]: Without dead ends: 571 [2019-01-13 05:50:49,910 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2019-01-13 05:50:49,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2019-01-13 05:50:49,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2019-01-13 05:50:49,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-01-13 05:50:49,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1714 transitions. [2019-01-13 05:50:49,928 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1714 transitions. Word has length 32 [2019-01-13 05:50:49,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:49,928 INFO L480 AbstractCegarLoop]: Abstraction has 571 states and 1714 transitions. [2019-01-13 05:50:49,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-13 05:50:49,929 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1714 transitions. [2019-01-13 05:50:49,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-13 05:50:49,930 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:49,930 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] [2019-01-13 05:50:49,931 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:49,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:49,931 INFO L82 PathProgramCache]: Analyzing trace with hash -126223495, now seen corresponding path program 3 times [2019-01-13 05:50:49,931 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:49,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:49,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:49,934 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-13 05:50:49,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:50,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:50,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:50,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-01-13 05:50:50,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-01-13 05:50:50,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-01-13 05:50:50,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-01-13 05:50:50,161 INFO L87 Difference]: Start difference. First operand 571 states and 1714 transitions. Second operand 11 states. [2019-01-13 05:50:50,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:50,366 INFO L93 Difference]: Finished difference Result 443 states and 1298 transitions. [2019-01-13 05:50:50,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-01-13 05:50:50,366 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2019-01-13 05:50:50,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:50,367 INFO L225 Difference]: With dead ends: 443 [2019-01-13 05:50:50,367 INFO L226 Difference]: Without dead ends: 0 [2019-01-13 05:50:50,367 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2019-01-13 05:50:50,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-13 05:50:50,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-13 05:50:50,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-13 05:50:50,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-13 05:50:50,368 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-01-13 05:50:50,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:50,368 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-13 05:50:50,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-01-13 05:50:50,369 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-13 05:50:50,369 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-13 05:50:50,372 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-13 05:50:50,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 05:50:50 BasicIcfg [2019-01-13 05:50:50,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 05:50:50,374 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 05:50:50,374 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 05:50:50,374 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 05:50:50,374 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:50:45" (3/4) ... [2019-01-13 05:50:50,379 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-13 05:50:50,386 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-13 05:50:50,386 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-13 05:50:50,386 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-13 05:50:50,390 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-13 05:50:50,390 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-13 05:50:50,435 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-13 05:50:50,435 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 05:50:50,436 INFO L168 Benchmark]: Toolchain (without parser) took 6633.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.6 MB). Free memory was 952.7 MB in the beginning and 1.2 GB in the end (delta: -229.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 05:50:50,438 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. [2019-01-13 05:50:50,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -165.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2019-01-13 05:50:50,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.90 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-13 05:50:50,440 INFO L168 Benchmark]: Boogie Preprocessor took 55.11 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. [2019-01-13 05:50:50,440 INFO L168 Benchmark]: RCFGBuilder took 527.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2019-01-13 05:50:50,441 INFO L168 Benchmark]: TraceAbstraction took 5164.21 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -108.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 05:50:50,442 INFO L168 Benchmark]: Witness Printer took 61.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2019-01-13 05:50:50,447 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 741.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -165.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.90 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 527.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5164.21 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -108.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 61.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 70 locations, 1 error locations. SAFE Result, 5.0s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 370 SDtfs, 483 SDslu, 1676 SDs, 0 SdLazy, 317 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 21795 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...