./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe037_tso.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/pthread-wmm/safe037_tso.opt_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe4cc0a8e439cb55ea6ad22cd867d581cfcad83e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 00:59:09,606 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 00:59:09,609 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 00:59:09,627 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 00:59:09,628 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 00:59:09,630 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 00:59:09,632 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 00:59:09,634 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 00:59:09,638 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 00:59:09,640 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 00:59:09,643 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 00:59:09,645 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 00:59:09,646 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 00:59:09,649 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 00:59:09,659 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 00:59:09,660 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 00:59:09,661 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 00:59:09,665 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 00:59:09,668 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 00:59:09,672 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 00:59:09,674 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 00:59:09,679 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 00:59:09,685 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 00:59:09,686 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 00:59:09,687 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 00:59:09,688 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 00:59:09,692 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 00:59:09,693 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 00:59:09,694 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 00:59:09,696 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 00:59:09,698 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 00:59:09,700 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 00:59:09,701 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 00:59:09,702 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 00:59:09,703 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 00:59:09,705 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 00:59:09,705 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-01 00:59:09,736 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 00:59:09,736 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 00:59:09,738 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 00:59:09,739 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 00:59:09,739 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 00:59:09,740 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 00:59:09,740 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 00:59:09,741 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 00:59:09,741 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 00:59:09,741 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 00:59:09,741 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 00:59:09,742 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 00:59:09,742 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 00:59:09,742 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 00:59:09,742 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 00:59:09,743 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 00:59:09,743 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 00:59:09,743 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 00:59:09,744 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 00:59:09,744 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 00:59:09,744 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 00:59:09,744 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:59:09,744 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 00:59:09,745 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 00:59:09,747 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 00:59:09,747 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 00:59:09,747 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 00:59:09,747 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 00:59:09,748 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 -> fe4cc0a8e439cb55ea6ad22cd867d581cfcad83e [2019-01-01 00:59:09,815 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 00:59:09,831 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 00:59:09,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 00:59:09,838 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 00:59:09,838 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 00:59:09,839 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe037_tso.opt_true-unreach-call.i [2019-01-01 00:59:09,910 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/487bb2354/d52667503923412ba21eace78212f22b/FLAGe70842d6a [2019-01-01 00:59:10,487 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 00:59:10,488 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe037_tso.opt_true-unreach-call.i [2019-01-01 00:59:10,504 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/487bb2354/d52667503923412ba21eace78212f22b/FLAGe70842d6a [2019-01-01 00:59:10,730 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/487bb2354/d52667503923412ba21eace78212f22b [2019-01-01 00:59:10,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 00:59:10,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 00:59:10,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 00:59:10,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 00:59:10,740 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 00:59:10,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:59:10" (1/1) ... [2019-01-01 00:59:10,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3277d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:10, skipping insertion in model container [2019-01-01 00:59:10,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:59:10" (1/1) ... [2019-01-01 00:59:10,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 00:59:10,810 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 00:59:11,216 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:59:11,231 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 00:59:11,382 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:59:11,471 INFO L195 MainTranslator]: Completed translation [2019-01-01 00:59:11,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:11 WrapperNode [2019-01-01 00:59:11,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 00:59:11,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 00:59:11,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 00:59:11,475 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 00:59:11,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:11" (1/1) ... [2019-01-01 00:59:11,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:11" (1/1) ... [2019-01-01 00:59:11,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 00:59:11,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 00:59:11,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 00:59:11,539 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 00:59:11,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:11" (1/1) ... [2019-01-01 00:59:11,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:11" (1/1) ... [2019-01-01 00:59:11,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:11" (1/1) ... [2019-01-01 00:59:11,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:11" (1/1) ... [2019-01-01 00:59:11,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:11" (1/1) ... [2019-01-01 00:59:11,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:11" (1/1) ... [2019-01-01 00:59:11,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:11" (1/1) ... [2019-01-01 00:59:11,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 00:59:11,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 00:59:11,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 00:59:11,572 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 00:59:11,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:59:11,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 00:59:11,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-01 00:59:11,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 00:59:11,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 00:59:11,649 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-01 00:59:11,649 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-01 00:59:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-01 00:59:11,650 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-01 00:59:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-01 00:59:11,650 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-01 00:59:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-01 00:59:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 00:59:11,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 00:59:11,653 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-01 00:59:12,149 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 00:59:12,149 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 00:59:12,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:59:12 BoogieIcfgContainer [2019-01-01 00:59:12,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 00:59:12,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 00:59:12,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 00:59:12,154 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 00:59:12,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 12:59:10" (1/3) ... [2019-01-01 00:59:12,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38eb4a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:59:12, skipping insertion in model container [2019-01-01 00:59:12,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:11" (2/3) ... [2019-01-01 00:59:12,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38eb4a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:59:12, skipping insertion in model container [2019-01-01 00:59:12,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:59:12" (3/3) ... [2019-01-01 00:59:12,159 INFO L112 eAbstractionObserver]: Analyzing ICFG safe037_tso.opt_true-unreach-call.i [2019-01-01 00:59:12,196 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,196 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,196 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,197 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,197 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,197 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,197 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,197 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,198 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,198 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,198 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,198 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,198 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,199 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,199 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,199 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,199 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,200 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,200 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,200 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,203 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,203 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,203 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,203 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,204 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,204 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,204 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,204 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,204 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,205 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:12,229 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 00:59:12,230 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 00:59:12,238 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-01 00:59:12,255 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-01 00:59:12,281 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 00:59:12,282 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 00:59:12,282 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 00:59:12,282 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 00:59:12,282 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 00:59:12,282 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 00:59:12,282 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 00:59:12,282 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 00:59:12,282 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 00:59:12,292 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57places, 54 transitions [2019-01-01 00:59:12,476 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2386 states. [2019-01-01 00:59:12,479 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states. [2019-01-01 00:59:12,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:59:12,508 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:59:12,510 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:59:12,513 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:59:12,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:59:12,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1034238462, now seen corresponding path program 1 times [2019-01-01 00:59:12,522 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:59:12,523 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:59:12,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:12,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:59:12,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:59:12,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:59:12,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:59:12,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 00:59:12,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 00:59:12,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 00:59:12,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 00:59:12,954 INFO L87 Difference]: Start difference. First operand 2386 states. Second operand 4 states. [2019-01-01 00:59:13,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:59:13,337 INFO L93 Difference]: Finished difference Result 2494 states and 8070 transitions. [2019-01-01 00:59:13,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 00:59:13,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-01-01 00:59:13,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:59:13,381 INFO L225 Difference]: With dead ends: 2494 [2019-01-01 00:59:13,381 INFO L226 Difference]: Without dead ends: 1129 [2019-01-01 00:59:13,384 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:59:13,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2019-01-01 00:59:13,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2019-01-01 00:59:13,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2019-01-01 00:59:13,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 3559 transitions. [2019-01-01 00:59:13,556 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 3559 transitions. Word has length 31 [2019-01-01 00:59:13,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:59:13,557 INFO L480 AbstractCegarLoop]: Abstraction has 1129 states and 3559 transitions. [2019-01-01 00:59:13,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 00:59:13,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 3559 transitions. [2019-01-01 00:59:13,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-01 00:59:13,562 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:59:13,562 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:59:13,563 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:59:13,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:59:13,563 INFO L82 PathProgramCache]: Analyzing trace with hash -358958448, now seen corresponding path program 1 times [2019-01-01 00:59:13,563 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:59:13,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:59:13,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:13,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:59:13,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:59:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:59:13,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:59:13,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 00:59:13,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 00:59:13,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 00:59:13,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:59:13,753 INFO L87 Difference]: Start difference. First operand 1129 states and 3559 transitions. Second operand 5 states. [2019-01-01 00:59:14,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:59:14,319 INFO L93 Difference]: Finished difference Result 1169 states and 3553 transitions. [2019-01-01 00:59:14,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:59:14,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-01-01 00:59:14,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:59:14,334 INFO L225 Difference]: With dead ends: 1169 [2019-01-01 00:59:14,334 INFO L226 Difference]: Without dead ends: 1045 [2019-01-01 00:59:14,335 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:59:14,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-01-01 00:59:14,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2019-01-01 00:59:14,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2019-01-01 00:59:14,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3244 transitions. [2019-01-01 00:59:14,379 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3244 transitions. Word has length 32 [2019-01-01 00:59:14,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:59:14,379 INFO L480 AbstractCegarLoop]: Abstraction has 1045 states and 3244 transitions. [2019-01-01 00:59:14,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 00:59:14,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3244 transitions. [2019-01-01 00:59:14,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:59:14,385 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:59:14,386 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:59:14,386 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:59:14,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:59:14,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1331314864, now seen corresponding path program 1 times [2019-01-01 00:59:14,388 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:59:14,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:59:14,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:14,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:59:14,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:59:14,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:59:14,703 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:59:14,703 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:59:14,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:59:14,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:59:14,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:59:14,704 INFO L87 Difference]: Start difference. First operand 1045 states and 3244 transitions. Second operand 6 states. [2019-01-01 00:59:14,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:59:14,955 INFO L93 Difference]: Finished difference Result 821 states and 2380 transitions. [2019-01-01 00:59:14,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:59:14,956 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-01-01 00:59:14,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:59:14,962 INFO L225 Difference]: With dead ends: 821 [2019-01-01 00:59:14,962 INFO L226 Difference]: Without dead ends: 709 [2019-01-01 00:59:14,963 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 [2019-01-01 00:59:14,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2019-01-01 00:59:14,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2019-01-01 00:59:14,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-01-01 00:59:14,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 2068 transitions. [2019-01-01 00:59:14,993 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 2068 transitions. Word has length 33 [2019-01-01 00:59:14,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:59:14,994 INFO L480 AbstractCegarLoop]: Abstraction has 709 states and 2068 transitions. [2019-01-01 00:59:14,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:59:14,994 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 2068 transitions. [2019-01-01 00:59:14,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:59:14,997 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:59:14,998 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:59:14,998 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:59:14,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:59:14,998 INFO L82 PathProgramCache]: Analyzing trace with hash 2128311482, now seen corresponding path program 1 times [2019-01-01 00:59:14,999 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:59:14,999 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:59:15,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:15,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:59:15,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:59:15,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:59:15,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:59:15,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 00:59:15,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 00:59:15,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 00:59:15,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-01-01 00:59:15,308 INFO L87 Difference]: Start difference. First operand 709 states and 2068 transitions. Second operand 8 states. [2019-01-01 00:59:15,849 WARN L181 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2019-01-01 00:59:16,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:59:16,138 INFO L93 Difference]: Finished difference Result 1109 states and 3292 transitions. [2019-01-01 00:59:16,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-01 00:59:16,139 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-01-01 00:59:16,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:59:16,146 INFO L225 Difference]: With dead ends: 1109 [2019-01-01 00:59:16,146 INFO L226 Difference]: Without dead ends: 593 [2019-01-01 00:59:16,149 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-01-01 00:59:16,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-01-01 00:59:16,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2019-01-01 00:59:16,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2019-01-01 00:59:16,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1756 transitions. [2019-01-01 00:59:16,187 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1756 transitions. Word has length 34 [2019-01-01 00:59:16,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:59:16,188 INFO L480 AbstractCegarLoop]: Abstraction has 593 states and 1756 transitions. [2019-01-01 00:59:16,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 00:59:16,189 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1756 transitions. [2019-01-01 00:59:16,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:59:16,192 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:59:16,192 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:59:16,193 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:59:16,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:59:16,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1304882406, now seen corresponding path program 2 times [2019-01-01 00:59:16,193 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:59:16,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:59:16,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:16,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:59:16,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:59:16,570 WARN L181 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-01-01 00:59:16,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:59:16,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:59:16,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 00:59:16,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 00:59:16,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 00:59:16,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-01-01 00:59:16,983 INFO L87 Difference]: Start difference. First operand 593 states and 1756 transitions. Second operand 8 states. [2019-01-01 00:59:17,265 WARN L181 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-01-01 00:59:17,794 WARN L181 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2019-01-01 00:59:18,558 WARN L181 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2019-01-01 00:59:18,832 WARN L181 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2019-01-01 00:59:18,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:59:18,874 INFO L93 Difference]: Finished difference Result 977 states and 2940 transitions. [2019-01-01 00:59:18,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-01 00:59:18,877 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-01-01 00:59:18,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:59:18,881 INFO L225 Difference]: With dead ends: 977 [2019-01-01 00:59:18,882 INFO L226 Difference]: Without dead ends: 557 [2019-01-01 00:59:18,882 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-01-01 00:59:18,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-01-01 00:59:18,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2019-01-01 00:59:18,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2019-01-01 00:59:18,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1672 transitions. [2019-01-01 00:59:18,899 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1672 transitions. Word has length 34 [2019-01-01 00:59:18,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:59:18,899 INFO L480 AbstractCegarLoop]: Abstraction has 557 states and 1672 transitions. [2019-01-01 00:59:18,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 00:59:18,899 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1672 transitions. [2019-01-01 00:59:18,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:59:18,901 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:59:18,901 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:59:18,902 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:59:18,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:59:18,902 INFO L82 PathProgramCache]: Analyzing trace with hash -427268092, now seen corresponding path program 3 times [2019-01-01 00:59:18,902 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:59:18,902 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:59:18,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:18,905 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 00:59:18,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:59:19,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:59:19,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:59:19,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 00:59:19,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 00:59:19,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 00:59:19,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-01-01 00:59:19,100 INFO L87 Difference]: Start difference. First operand 557 states and 1672 transitions. Second operand 8 states. [2019-01-01 00:59:19,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:59:19,373 INFO L93 Difference]: Finished difference Result 429 states and 1256 transitions. [2019-01-01 00:59:19,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-01 00:59:19,374 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-01-01 00:59:19,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:59:19,374 INFO L225 Difference]: With dead ends: 429 [2019-01-01 00:59:19,375 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 00:59:19,375 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-01-01 00:59:19,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 00:59:19,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 00:59:19,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 00:59:19,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 00:59:19,376 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-01-01 00:59:19,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:59:19,376 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 00:59:19,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 00:59:19,377 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 00:59:19,377 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 00:59:19,380 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-01 00:59:19,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 12:59:19 BasicIcfg [2019-01-01 00:59:19,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 00:59:19,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 00:59:19,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 00:59:19,384 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 00:59:19,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:59:12" (3/4) ... [2019-01-01 00:59:19,389 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 00:59:19,397 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-01 00:59:19,397 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-01 00:59:19,397 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-01 00:59:19,403 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-01 00:59:19,403 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 00:59:19,459 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 00:59:19,459 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 00:59:19,460 INFO L168 Benchmark]: Toolchain (without parser) took 8725.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 951.4 MB in the beginning and 791.5 MB in the end (delta: 159.8 MB). Peak memory consumption was 278.3 MB. Max. memory is 11.5 GB. [2019-01-01 00:59:19,461 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:59:19,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -139.5 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2019-01-01 00:59:19,463 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:59:19,463 INFO L168 Benchmark]: Boogie Preprocessor took 31.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-01 00:59:19,464 INFO L168 Benchmark]: RCFGBuilder took 578.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-01-01 00:59:19,465 INFO L168 Benchmark]: TraceAbstraction took 7232.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 791.5 MB in the end (delta: 274.3 MB). Peak memory consumption was 274.3 MB. Max. memory is 11.5 GB. [2019-01-01 00:59:19,465 INFO L168 Benchmark]: Witness Printer took 75.67 ms. Allocated memory is still 1.1 GB. Free memory is still 791.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:59:19,469 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 737.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -139.5 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 578.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7232.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 791.5 MB in the end (delta: 274.3 MB). Peak memory consumption was 274.3 MB. Max. memory is 11.5 GB. * Witness Printer took 75.67 ms. Allocated memory is still 1.1 GB. Free memory is still 791.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 72 locations, 1 error locations. SAFE Result, 7.1s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 4.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 370 SDtfs, 530 SDslu, 1058 SDs, 0 SdLazy, 111 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2386occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 15438 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...