./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe025_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/safe025_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 01089601a3571fcea4069aa774872db43d83e3ab ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 05:50:57,539 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 05:50:57,540 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 05:50:57,552 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 05:50:57,552 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 05:50:57,553 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 05:50:57,555 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 05:50:57,557 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 05:50:57,558 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 05:50:57,559 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 05:50:57,560 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 05:50:57,560 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 05:50:57,561 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 05:50:57,562 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 05:50:57,563 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 05:50:57,564 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 05:50:57,565 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 05:50:57,567 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 05:50:57,569 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 05:50:57,571 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 05:50:57,572 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 05:50:57,574 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 05:50:57,576 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 05:50:57,577 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 05:50:57,577 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 05:50:57,578 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 05:50:57,579 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 05:50:57,580 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 05:50:57,581 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 05:50:57,582 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 05:50:57,582 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 05:50:57,583 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 05:50:57,583 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 05:50:57,583 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 05:50:57,585 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 05:50:57,585 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 05:50:57,586 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-13 05:50:57,608 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 05:50:57,608 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 05:50:57,609 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 05:50:57,609 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 05:50:57,609 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 05:50:57,610 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 05:50:57,610 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-13 05:50:57,612 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 05:50:57,612 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-13 05:50:57,612 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 05:50:57,612 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-13 05:50:57,612 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 05:50:57,613 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-13 05:50:57,613 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-13 05:50:57,613 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-13 05:50:57,613 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 05:50:57,613 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-13 05:50:57,613 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 05:50:57,614 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 05:50:57,614 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 05:50:57,615 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 05:50:57,615 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 05:50:57,615 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 05:50:57,615 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 05:50:57,615 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-13 05:50:57,616 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 05:50:57,616 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 05:50:57,616 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-13 05:50:57,616 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 -> 01089601a3571fcea4069aa774872db43d83e3ab [2019-01-13 05:50:57,674 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 05:50:57,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 05:50:57,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 05:50:57,700 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 05:50:57,701 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 05:50:57,702 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe025_pso.opt_true-unreach-call.i [2019-01-13 05:50:57,772 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32f015326/bfa915208734450782bbb9ba7c25d2af/FLAGd20fb76c2 [2019-01-13 05:50:58,312 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 05:50:58,314 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe025_pso.opt_true-unreach-call.i [2019-01-13 05:50:58,334 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32f015326/bfa915208734450782bbb9ba7c25d2af/FLAGd20fb76c2 [2019-01-13 05:50:58,564 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32f015326/bfa915208734450782bbb9ba7c25d2af [2019-01-13 05:50:58,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 05:50:58,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-13 05:50:58,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 05:50:58,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 05:50:58,578 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 05:50:58,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 05:50:58" (1/1) ... [2019-01-13 05:50:58,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1a718d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:58, skipping insertion in model container [2019-01-13 05:50:58,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 05:50:58" (1/1) ... [2019-01-13 05:50:58,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 05:50:58,641 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 05:50:59,065 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 05:50:59,088 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 05:50:59,218 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 05:50:59,289 INFO L195 MainTranslator]: Completed translation [2019-01-13 05:50:59,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:59 WrapperNode [2019-01-13 05:50:59,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 05:50:59,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-13 05:50:59,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-13 05:50:59,292 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-13 05:50:59,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:59" (1/1) ... [2019-01-13 05:50:59,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:59" (1/1) ... [2019-01-13 05:50:59,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-13 05:50:59,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 05:50:59,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 05:50:59,345 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 05:50:59,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:59" (1/1) ... [2019-01-13 05:50:59,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:59" (1/1) ... [2019-01-13 05:50:59,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:59" (1/1) ... [2019-01-13 05:50:59,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:59" (1/1) ... [2019-01-13 05:50:59,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:59" (1/1) ... [2019-01-13 05:50:59,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:59" (1/1) ... [2019-01-13 05:50:59,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:59" (1/1) ... [2019-01-13 05:50:59,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 05:50:59,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 05:50:59,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 05:50:59,383 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 05:50:59,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:59" (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 05:50:59,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-13 05:50:59,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-13 05:50:59,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 05:50:59,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 05:50:59,457 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-13 05:50:59,457 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-13 05:50:59,457 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-13 05:50:59,458 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-13 05:50:59,459 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-13 05:50:59,459 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-13 05:50:59,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-13 05:50:59,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 05:50:59,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 05:50:59,462 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 05:50:59,918 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 05:50:59,921 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-13 05:50:59,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:50:59 BoogieIcfgContainer [2019-01-13 05:50:59,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 05:50:59,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 05:50:59,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 05:50:59,927 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 05:50:59,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 05:50:58" (1/3) ... [2019-01-13 05:50:59,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc7c41b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 05:50:59, skipping insertion in model container [2019-01-13 05:50:59,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:59" (2/3) ... [2019-01-13 05:50:59,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc7c41b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 05:50:59, skipping insertion in model container [2019-01-13 05:50:59,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:50:59" (3/3) ... [2019-01-13 05:50:59,933 INFO L112 eAbstractionObserver]: Analyzing ICFG safe025_pso.opt_true-unreach-call.i [2019-01-13 05:50:59,967 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,967 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,968 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,968 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,968 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,968 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,969 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,970 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,970 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,970 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,971 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,971 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,971 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,971 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,972 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,973 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,973 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,973 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,974 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,974 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,974 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,975 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,976 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,976 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,976 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,977 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,977 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,978 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,978 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:59,978 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:51:00,005 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-13 05:51:00,006 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 05:51:00,014 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-13 05:51:00,031 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-13 05:51:00,056 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 05:51:00,057 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 05:51:00,057 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-13 05:51:00,057 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 05:51:00,057 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 05:51:00,057 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 05:51:00,057 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 05:51:00,057 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 05:51:00,058 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 05:51:00,067 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2019-01-13 05:51:00,207 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2019-01-13 05:51:00,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2019-01-13 05:51:00,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-01-13 05:51:00,237 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:51:00,238 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 05:51:00,240 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:51:00,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:51:00,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1527644630, now seen corresponding path program 1 times [2019-01-13 05:51:00,248 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:51:00,249 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:51:00,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:51:00,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:51:00,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:51:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:51:00,565 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 05:51:00,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:51:00,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 05:51:00,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-13 05:51:00,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-13 05:51:00,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-13 05:51:00,593 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2019-01-13 05:51:00,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:51:00,792 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2019-01-13 05:51:00,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 05:51:00,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-01-13 05:51:00,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:51:00,846 INFO L225 Difference]: With dead ends: 2493 [2019-01-13 05:51:00,847 INFO L226 Difference]: Without dead ends: 1128 [2019-01-13 05:51:00,849 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 05:51:00,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-01-13 05:51:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2019-01-13 05:51:01,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2019-01-13 05:51:01,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2019-01-13 05:51:01,032 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2019-01-13 05:51:01,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:51:01,033 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2019-01-13 05:51:01,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-13 05:51:01,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2019-01-13 05:51:01,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-13 05:51:01,041 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:51:01,041 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 05:51:01,042 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:51:01,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:51:01,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1534799274, now seen corresponding path program 1 times [2019-01-13 05:51:01,046 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:51:01,046 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:51:01,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:51:01,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:51:01,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:51:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:51:01,220 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 05:51:01,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:51:01,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-13 05:51:01,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 05:51:01,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 05:51:01,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-13 05:51:01,227 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2019-01-13 05:51:01,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:51:01,753 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2019-01-13 05:51:01,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-13 05:51:01,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-01-13 05:51:01,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:51:01,769 INFO L225 Difference]: With dead ends: 1168 [2019-01-13 05:51:01,770 INFO L226 Difference]: Without dead ends: 1044 [2019-01-13 05:51:01,771 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-13 05:51:01,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2019-01-13 05:51:01,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2019-01-13 05:51:01,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2019-01-13 05:51:01,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2019-01-13 05:51:01,818 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2019-01-13 05:51:01,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:51:01,819 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2019-01-13 05:51:01,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 05:51:01,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2019-01-13 05:51:01,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-13 05:51:01,824 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:51:01,824 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 05:51:01,826 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:51:01,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:51:01,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1935451892, now seen corresponding path program 1 times [2019-01-13 05:51:01,826 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:51:01,826 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:51:01,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:51:01,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:51:01,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:51:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:51:02,005 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 05:51:02,005 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:51:02,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-13 05:51:02,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-13 05:51:02,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-13 05:51:02,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-13 05:51:02,008 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2019-01-13 05:51:02,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:51:02,449 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2019-01-13 05:51:02,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 05:51:02,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-01-13 05:51:02,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:51:02,455 INFO L225 Difference]: With dead ends: 820 [2019-01-13 05:51:02,455 INFO L226 Difference]: Without dead ends: 708 [2019-01-13 05:51:02,456 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 05:51:02,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-01-13 05:51:02,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2019-01-13 05:51:02,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-01-13 05:51:02,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2019-01-13 05:51:02,481 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2019-01-13 05:51:02,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:51:02,482 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2019-01-13 05:51:02,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-13 05:51:02,482 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2019-01-13 05:51:02,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-13 05:51:02,484 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:51:02,484 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 05:51:02,485 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:51:02,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:51:02,485 INFO L82 PathProgramCache]: Analyzing trace with hash 794836574, now seen corresponding path program 1 times [2019-01-13 05:51:02,485 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:51:02,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:51:02,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:51:02,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:51:02,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:51:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:51:02,826 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 05:51:02,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:51:02,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-13 05:51:02,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-13 05:51:02,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-13 05:51:02,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-13 05:51:02,828 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 7 states. [2019-01-13 05:51:03,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:51:03,137 INFO L93 Difference]: Finished difference Result 1108 states and 3291 transitions. [2019-01-13 05:51:03,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 05:51:03,137 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-01-13 05:51:03,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:51:03,143 INFO L225 Difference]: With dead ends: 1108 [2019-01-13 05:51:03,143 INFO L226 Difference]: Without dead ends: 592 [2019-01-13 05:51:03,144 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-01-13 05:51:03,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2019-01-13 05:51:03,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2019-01-13 05:51:03,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2019-01-13 05:51:03,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 1755 transitions. [2019-01-13 05:51:03,169 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 1755 transitions. Word has length 33 [2019-01-13 05:51:03,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:51:03,169 INFO L480 AbstractCegarLoop]: Abstraction has 592 states and 1755 transitions. [2019-01-13 05:51:03,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-13 05:51:03,169 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 1755 transitions. [2019-01-13 05:51:03,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-13 05:51:03,171 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:51:03,171 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 05:51:03,173 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:51:03,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:51:03,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1428521192, now seen corresponding path program 2 times [2019-01-13 05:51:03,174 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:51:03,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:51:03,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:51:03,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:51:03,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:51:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:51:03,384 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 05:51:03,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:51:03,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-13 05:51:03,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-13 05:51:03,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-13 05:51:03,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-01-13 05:51:03,386 INFO L87 Difference]: Start difference. First operand 592 states and 1755 transitions. Second operand 7 states. [2019-01-13 05:51:04,002 WARN L181 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-01-13 05:51:04,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:51:04,106 INFO L93 Difference]: Finished difference Result 976 states and 2939 transitions. [2019-01-13 05:51:04,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 05:51:04,109 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-01-13 05:51:04,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:51:04,114 INFO L225 Difference]: With dead ends: 976 [2019-01-13 05:51:04,114 INFO L226 Difference]: Without dead ends: 556 [2019-01-13 05:51:04,114 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-01-13 05:51:04,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2019-01-13 05:51:04,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2019-01-13 05:51:04,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2019-01-13 05:51:04,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2019-01-13 05:51:04,133 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2019-01-13 05:51:04,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:51:04,134 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2019-01-13 05:51:04,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-13 05:51:04,134 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2019-01-13 05:51:04,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-13 05:51:04,135 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:51:04,136 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 05:51:04,136 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:51:04,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:51:04,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1919769948, now seen corresponding path program 3 times [2019-01-13 05:51:04,136 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:51:04,137 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:51:04,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:51:04,139 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-13 05:51:04,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:51:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:51:04,344 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 05:51:04,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:51:04,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-13 05:51:04,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-13 05:51:04,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-13 05:51:04,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-13 05:51:04,356 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 7 states. [2019-01-13 05:51:04,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:51:04,490 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2019-01-13 05:51:04,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 05:51:04,491 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-01-13 05:51:04,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:51:04,492 INFO L225 Difference]: With dead ends: 428 [2019-01-13 05:51:04,492 INFO L226 Difference]: Without dead ends: 0 [2019-01-13 05:51:04,492 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 05:51:04,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-13 05:51:04,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-13 05:51:04,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-13 05:51:04,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-13 05:51:04,493 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-01-13 05:51:04,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:51:04,493 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-13 05:51:04,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-13 05:51:04,497 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-13 05:51:04,497 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-13 05:51:04,501 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-13 05:51:04,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 05:51:04 BasicIcfg [2019-01-13 05:51:04,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 05:51:04,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 05:51:04,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 05:51:04,505 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 05:51:04,506 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:50:59" (3/4) ... [2019-01-13 05:51:04,510 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-13 05:51:04,517 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-13 05:51:04,518 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-13 05:51:04,518 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-13 05:51:04,523 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-13 05:51:04,524 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-13 05:51:04,578 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-13 05:51:04,578 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 05:51:04,579 INFO L168 Benchmark]: Toolchain (without parser) took 6009.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 947.3 MB in the beginning and 878.1 MB in the end (delta: 69.3 MB). Peak memory consumption was 223.4 MB. Max. memory is 11.5 GB. [2019-01-13 05:51:04,581 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 05:51:04,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2019-01-13 05:51:04,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.15 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 05:51:04,582 INFO L168 Benchmark]: Boogie Preprocessor took 37.57 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 05:51:04,584 INFO L168 Benchmark]: RCFGBuilder took 539.96 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-01-13 05:51:04,584 INFO L168 Benchmark]: TraceAbstraction took 4579.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 878.1 MB in the end (delta: 218.8 MB). Peak memory consumption was 218.8 MB. Max. memory is 11.5 GB. [2019-01-13 05:51:04,585 INFO L168 Benchmark]: Witness Printer took 74.95 ms. Allocated memory is still 1.2 GB. Free memory is still 878.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 05:51:04,590 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 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 717.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.15 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 37.57 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 539.96 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4579.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 878.1 MB in the end (delta: 218.8 MB). Peak memory consumption was 218.8 MB. Max. memory is 11.5 GB. * Witness Printer took 74.95 ms. Allocated memory is still 1.2 GB. Free memory is still 878.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 71 locations, 1 error locations. SAFE Result, 4.4s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 356 SDtfs, 431 SDslu, 926 SDs, 0 SdLazy, 113 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 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, 15102 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...