./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe000_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/safe000_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 a6f4cb0ad26e21684151496a0b213b4bf2b80197 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 05:48:47,446 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 05:48:47,448 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 05:48:47,461 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 05:48:47,461 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 05:48:47,463 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 05:48:47,465 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 05:48:47,467 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 05:48:47,469 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 05:48:47,470 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 05:48:47,471 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 05:48:47,471 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 05:48:47,473 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 05:48:47,473 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 05:48:47,475 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 05:48:47,476 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 05:48:47,477 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 05:48:47,479 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 05:48:47,481 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 05:48:47,483 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 05:48:47,485 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 05:48:47,488 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 05:48:47,492 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 05:48:47,493 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 05:48:47,493 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 05:48:47,496 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 05:48:47,497 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 05:48:47,498 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 05:48:47,503 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 05:48:47,505 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 05:48:47,506 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 05:48:47,506 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 05:48:47,507 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 05:48:47,509 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 05:48:47,510 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 05:48:47,512 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 05:48:47,514 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-13 05:48:47,543 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 05:48:47,546 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 05:48:47,548 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 05:48:47,549 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 05:48:47,549 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 05:48:47,549 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 05:48:47,549 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-13 05:48:47,550 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 05:48:47,550 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-13 05:48:47,550 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 05:48:47,550 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-13 05:48:47,550 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 05:48:47,551 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-13 05:48:47,552 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-13 05:48:47,553 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-13 05:48:47,553 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 05:48:47,553 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-13 05:48:47,553 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 05:48:47,553 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 05:48:47,553 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 05:48:47,556 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 05:48:47,556 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 05:48:47,557 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 05:48:47,557 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 05:48:47,557 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-13 05:48:47,557 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 05:48:47,557 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 05:48:47,557 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-13 05:48:47,558 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 -> a6f4cb0ad26e21684151496a0b213b4bf2b80197 [2019-01-13 05:48:47,629 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 05:48:47,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 05:48:47,652 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 05:48:47,654 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 05:48:47,654 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 05:48:47,655 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe000_pso.opt_true-unreach-call.i [2019-01-13 05:48:47,722 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b3469a0d/bbd13833a5fa4ef69ba04b07a2fa1194/FLAGc5502e1a8 [2019-01-13 05:48:48,280 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 05:48:48,283 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe000_pso.opt_true-unreach-call.i [2019-01-13 05:48:48,298 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b3469a0d/bbd13833a5fa4ef69ba04b07a2fa1194/FLAGc5502e1a8 [2019-01-13 05:48:48,554 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b3469a0d/bbd13833a5fa4ef69ba04b07a2fa1194 [2019-01-13 05:48:48,559 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 05:48:48,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-13 05:48:48,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 05:48:48,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 05:48:48,566 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 05:48:48,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 05:48:48" (1/1) ... [2019-01-13 05:48:48,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39588c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:48:48, skipping insertion in model container [2019-01-13 05:48:48,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 05:48:48" (1/1) ... [2019-01-13 05:48:48,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 05:48:48,638 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 05:48:49,083 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 05:48:49,100 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 05:48:49,254 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 05:48:49,357 INFO L195 MainTranslator]: Completed translation [2019-01-13 05:48:49,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:48:49 WrapperNode [2019-01-13 05:48:49,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 05:48:49,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-13 05:48:49,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-13 05:48:49,360 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-13 05:48:49,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:48:49" (1/1) ... [2019-01-13 05:48:49,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:48:49" (1/1) ... [2019-01-13 05:48:49,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-13 05:48:49,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 05:48:49,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 05:48:49,427 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 05:48:49,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:48:49" (1/1) ... [2019-01-13 05:48:49,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:48:49" (1/1) ... [2019-01-13 05:48:49,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:48:49" (1/1) ... [2019-01-13 05:48:49,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:48:49" (1/1) ... [2019-01-13 05:48:49,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:48:49" (1/1) ... [2019-01-13 05:48:49,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:48:49" (1/1) ... [2019-01-13 05:48:49,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:48:49" (1/1) ... [2019-01-13 05:48:49,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 05:48:49,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 05:48:49,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 05:48:49,476 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 05:48:49,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:48:49" (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 05:48:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-13 05:48:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-13 05:48:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 05:48:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 05:48:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-13 05:48:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-13 05:48:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-13 05:48:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-13 05:48:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-13 05:48:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-13 05:48:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-13 05:48:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 05:48:49,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 05:48:49,558 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 05:48:50,095 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 05:48:50,095 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-13 05:48:50,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:48:50 BoogieIcfgContainer [2019-01-13 05:48:50,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 05:48:50,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 05:48:50,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 05:48:50,102 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 05:48:50,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 05:48:48" (1/3) ... [2019-01-13 05:48:50,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e999935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 05:48:50, skipping insertion in model container [2019-01-13 05:48:50,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:48:49" (2/3) ... [2019-01-13 05:48:50,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e999935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 05:48:50, skipping insertion in model container [2019-01-13 05:48:50,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:48:50" (3/3) ... [2019-01-13 05:48:50,106 INFO L112 eAbstractionObserver]: Analyzing ICFG safe000_pso.opt_true-unreach-call.i [2019-01-13 05:48:50,142 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,143 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,143 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,144 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,144 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,144 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,144 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,145 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,145 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,145 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,145 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,147 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,147 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,147 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,148 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,148 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,148 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,148 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,148 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,150 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,150 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,150 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,150 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,151 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,152 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,152 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,152 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,152 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,152 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,152 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:48:50,184 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-13 05:48:50,185 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 05:48:50,192 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-13 05:48:50,209 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-13 05:48:50,236 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 05:48:50,237 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 05:48:50,237 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-13 05:48:50,237 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 05:48:50,238 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 05:48:50,238 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 05:48:50,238 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 05:48:50,238 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 05:48:50,238 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 05:48:50,248 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2019-01-13 05:48:50,386 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2019-01-13 05:48:50,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2019-01-13 05:48:50,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-01-13 05:48:50,422 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:48:50,424 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 05:48:50,427 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:48:50,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:48:50,434 INFO L82 PathProgramCache]: Analyzing trace with hash 137484955, now seen corresponding path program 1 times [2019-01-13 05:48:50,437 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:48:50,438 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:48:50,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:48:50,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:48:50,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:48:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:48:50,771 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 05:48:50,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:48:50,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 05:48:50,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-13 05:48:50,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-13 05:48:50,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-13 05:48:50,799 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2019-01-13 05:48:51,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:48:51,086 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2019-01-13 05:48:51,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 05:48:51,088 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-01-13 05:48:51,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:48:51,121 INFO L225 Difference]: With dead ends: 2493 [2019-01-13 05:48:51,121 INFO L226 Difference]: Without dead ends: 1128 [2019-01-13 05:48:51,123 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 05:48:51,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-01-13 05:48:51,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2019-01-13 05:48:51,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2019-01-13 05:48:51,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2019-01-13 05:48:51,262 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2019-01-13 05:48:51,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:48:51,263 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2019-01-13 05:48:51,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-13 05:48:51,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2019-01-13 05:48:51,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-13 05:48:51,267 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:48:51,267 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 05:48:51,267 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:48:51,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:48:51,268 INFO L82 PathProgramCache]: Analyzing trace with hash -2018730703, now seen corresponding path program 1 times [2019-01-13 05:48:51,268 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:48:51,268 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:48:51,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:48:51,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:48:51,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:48:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:48:51,468 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 05:48:51,468 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:48:51,468 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-13 05:48:51,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 05:48:51,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 05:48:51,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-13 05:48:51,472 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2019-01-13 05:48:51,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:48:51,906 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2019-01-13 05:48:51,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-13 05:48:51,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-01-13 05:48:51,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:48:51,918 INFO L225 Difference]: With dead ends: 1168 [2019-01-13 05:48:51,918 INFO L226 Difference]: Without dead ends: 1044 [2019-01-13 05:48:51,919 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 05:48:51,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2019-01-13 05:48:51,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2019-01-13 05:48:51,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2019-01-13 05:48:51,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2019-01-13 05:48:51,967 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2019-01-13 05:48:51,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:48:51,968 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2019-01-13 05:48:51,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 05:48:51,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2019-01-13 05:48:51,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-13 05:48:51,973 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:48:51,973 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 05:48:51,973 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:48:51,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:48:51,974 INFO L82 PathProgramCache]: Analyzing trace with hash 691214767, now seen corresponding path program 1 times [2019-01-13 05:48:51,974 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:48:51,974 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:48:51,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:48:51,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:48:51,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:48:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:48:52,238 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 05:48:52,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:48:52,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-13 05:48:52,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-13 05:48:52,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-13 05:48:52,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-13 05:48:52,240 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2019-01-13 05:48:52,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:48:52,399 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2019-01-13 05:48:52,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 05:48:52,400 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-01-13 05:48:52,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:48:52,406 INFO L225 Difference]: With dead ends: 820 [2019-01-13 05:48:52,407 INFO L226 Difference]: Without dead ends: 708 [2019-01-13 05:48:52,407 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-01-13 05:48:52,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-01-13 05:48:52,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2019-01-13 05:48:52,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-01-13 05:48:52,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2019-01-13 05:48:52,433 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2019-01-13 05:48:52,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:48:52,433 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2019-01-13 05:48:52,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-13 05:48:52,434 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2019-01-13 05:48:52,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-13 05:48:52,436 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:48:52,437 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] [2019-01-13 05:48:52,438 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:48:52,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:48:52,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1939982521, now seen corresponding path program 1 times [2019-01-13 05:48:52,438 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:48:52,438 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:48:52,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:48:52,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:48:52,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:48:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:48:52,642 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 05:48:52,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:48:52,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-13 05:48:52,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-13 05:48:52,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-13 05:48:52,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-01-13 05:48:52,644 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 8 states. [2019-01-13 05:48:52,792 WARN L181 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2019-01-13 05:48:53,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:48:53,583 INFO L93 Difference]: Finished difference Result 1188 states and 3491 transitions. [2019-01-13 05:48:53,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-13 05:48:53,586 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-01-13 05:48:53,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:48:53,593 INFO L225 Difference]: With dead ends: 1188 [2019-01-13 05:48:53,595 INFO L226 Difference]: Without dead ends: 672 [2019-01-13 05:48:53,595 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2019-01-13 05:48:53,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2019-01-13 05:48:53,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2019-01-13 05:48:53,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2019-01-13 05:48:53,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1975 transitions. [2019-01-13 05:48:53,622 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1975 transitions. Word has length 33 [2019-01-13 05:48:53,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:48:53,622 INFO L480 AbstractCegarLoop]: Abstraction has 672 states and 1975 transitions. [2019-01-13 05:48:53,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-13 05:48:53,622 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1975 transitions. [2019-01-13 05:48:53,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-13 05:48:53,627 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:48:53,628 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] [2019-01-13 05:48:53,629 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:48:53,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:48:53,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1074111855, now seen corresponding path program 2 times [2019-01-13 05:48:53,629 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:48:53,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:48:53,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:48:53,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:48:53,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:48:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:48:53,858 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 05:48:53,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:48:53,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-13 05:48:53,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-13 05:48:53,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-13 05:48:53,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-13 05:48:53,860 INFO L87 Difference]: Start difference. First operand 672 states and 1975 transitions. Second operand 7 states. [2019-01-13 05:48:54,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:48:54,036 INFO L93 Difference]: Finished difference Result 1056 states and 3159 transitions. [2019-01-13 05:48:54,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 05:48:54,037 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-01-13 05:48:54,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:48:54,043 INFO L225 Difference]: With dead ends: 1056 [2019-01-13 05:48:54,044 INFO L226 Difference]: Without dead ends: 556 [2019-01-13 05:48:54,044 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-01-13 05:48:54,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2019-01-13 05:48:54,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2019-01-13 05:48:54,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2019-01-13 05:48:54,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2019-01-13 05:48:54,063 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2019-01-13 05:48:54,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:48:54,064 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2019-01-13 05:48:54,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-13 05:48:54,064 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2019-01-13 05:48:54,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-13 05:48:54,066 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:48:54,066 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] [2019-01-13 05:48:54,067 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:48:54,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:48:54,071 INFO L82 PathProgramCache]: Analyzing trace with hash -824939639, now seen corresponding path program 3 times [2019-01-13 05:48:54,072 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:48:54,072 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:48:54,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:48:54,074 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-13 05:48:54,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:48:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:48:54,285 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 05:48:54,286 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:48:54,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-13 05:48:54,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-13 05:48:54,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-13 05:48:54,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-01-13 05:48:54,288 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 8 states. [2019-01-13 05:48:54,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:48:54,444 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2019-01-13 05:48:54,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-13 05:48:54,444 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-01-13 05:48:54,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:48:54,445 INFO L225 Difference]: With dead ends: 428 [2019-01-13 05:48:54,445 INFO L226 Difference]: Without dead ends: 0 [2019-01-13 05:48:54,445 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2019-01-13 05:48:54,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-13 05:48:54,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-13 05:48:54,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-13 05:48:54,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-13 05:48:54,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-01-13 05:48:54,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:48:54,447 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-13 05:48:54,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-13 05:48:54,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-13 05:48:54,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-13 05:48:54,451 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-13 05:48:54,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 05:48:54 BasicIcfg [2019-01-13 05:48:54,453 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 05:48:54,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 05:48:54,454 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 05:48:54,454 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 05:48:54,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:48:50" (3/4) ... [2019-01-13 05:48:54,459 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-13 05:48:54,466 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-13 05:48:54,467 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-13 05:48:54,467 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-13 05:48:54,472 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-13 05:48:54,472 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-13 05:48:54,523 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-13 05:48:54,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 05:48:54,524 INFO L168 Benchmark]: Toolchain (without parser) took 5964.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 951.4 MB in the beginning and 846.5 MB in the end (delta: 104.8 MB). Peak memory consumption was 255.3 MB. Max. memory is 11.5 GB. [2019-01-13 05:48:54,526 INFO L168 Benchmark]: CDTParser took 0.16 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 05:48:54,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2019-01-13 05:48:54,527 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.27 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 05:48:54,528 INFO L168 Benchmark]: Boogie Preprocessor took 48.10 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 05:48:54,528 INFO L168 Benchmark]: RCFGBuilder took 621.67 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: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-01-13 05:48:54,529 INFO L168 Benchmark]: TraceAbstraction took 4355.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 853.1 MB in the end (delta: 239.8 MB). Peak memory consumption was 239.8 MB. Max. memory is 11.5 GB. [2019-01-13 05:48:54,530 INFO L168 Benchmark]: Witness Printer took 69.79 ms. Allocated memory is still 1.2 GB. Free memory was 853.1 MB in the beginning and 846.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-13 05:48:54,535 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 797.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.27 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 48.10 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 621.67 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: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4355.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 853.1 MB in the end (delta: 239.8 MB). Peak memory consumption was 239.8 MB. Max. memory is 11.5 GB. * Witness Printer took 69.79 ms. Allocated memory is still 1.2 GB. Free memory was 853.1 MB in the beginning and 846.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 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, 71 locations, 1 error locations. SAFE Result, 4.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 322 SDtfs, 477 SDslu, 898 SDs, 0 SdLazy, 123 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred 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, 1.1s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 16446 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...