./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe027_pso.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e 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/safe027_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 f774b2dfbefc961514087025cd3c3cd769a7bdaf ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 20:43:32,789 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:43:32,793 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:43:32,814 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:43:32,816 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:43:32,817 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:43:32,819 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:43:32,822 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:43:32,823 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:43:32,824 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:43:32,826 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:43:32,826 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:43:32,827 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:43:32,828 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:43:32,830 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:43:32,830 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:43:32,832 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:43:32,834 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:43:32,836 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:43:32,838 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:43:32,839 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:43:32,841 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:43:32,843 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:43:32,844 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:43:32,844 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:43:32,845 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:43:32,847 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:43:32,848 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:43:32,849 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:43:32,850 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:43:32,850 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:43:32,852 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:43:32,852 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:43:32,852 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:43:32,853 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:43:32,854 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:43:32,854 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:43:32,882 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:43:32,882 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:43:32,883 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:43:32,884 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:43:32,885 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:43:32,886 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:43:32,886 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:43:32,886 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:43:32,886 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:43:32,886 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:43:32,886 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:43:32,887 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:43:32,887 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:43:32,887 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:43:32,888 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:43:32,888 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:43:32,888 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:43:32,888 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:43:32,888 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:43:32,889 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:43:32,892 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:43:32,893 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:43:32,893 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:43:32,893 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:43:32,893 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:43:32,893 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:43:32,894 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:43:32,894 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:43:32,894 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:43:32,894 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:43:32,894 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 -> f774b2dfbefc961514087025cd3c3cd769a7bdaf [2018-11-28 20:43:32,938 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:43:32,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:43:32,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:43:32,961 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:43:32,961 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:43:32,963 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe027_pso.opt_true-unreach-call.i [2018-11-28 20:43:33,034 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca3174ab0/c4f8ba9e63494dfc90a8afcdd7c4c49f/FLAG4668e77b7 [2018-11-28 20:43:33,624 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:43:33,625 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe027_pso.opt_true-unreach-call.i [2018-11-28 20:43:33,650 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca3174ab0/c4f8ba9e63494dfc90a8afcdd7c4c49f/FLAG4668e77b7 [2018-11-28 20:43:33,847 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca3174ab0/c4f8ba9e63494dfc90a8afcdd7c4c49f [2018-11-28 20:43:33,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:43:33,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:43:33,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:33,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:43:33,864 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:43:33,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:33" (1/1) ... [2018-11-28 20:43:33,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17579f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:33, skipping insertion in model container [2018-11-28 20:43:33,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:33" (1/1) ... [2018-11-28 20:43:33,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:43:33,949 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:43:34,326 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:34,340 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:43:34,424 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:34,603 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:43:34,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:34 WrapperNode [2018-11-28 20:43:34,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:34,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:34,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:43:34,605 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:43:34,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:34" (1/1) ... [2018-11-28 20:43:34,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:34" (1/1) ... [2018-11-28 20:43:34,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:34,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:43:34,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:43:34,658 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:43:34,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:34" (1/1) ... [2018-11-28 20:43:34,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:34" (1/1) ... [2018-11-28 20:43:34,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:34" (1/1) ... [2018-11-28 20:43:34,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:34" (1/1) ... [2018-11-28 20:43:34,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:34" (1/1) ... [2018-11-28 20:43:34,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:34" (1/1) ... [2018-11-28 20:43:34,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:34" (1/1) ... [2018-11-28 20:43:34,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:43:34,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:43:34,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:43:34,694 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:43:34,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:34" (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 [2018-11-28 20:43:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:43:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:43:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:43:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:43:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:43:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:43:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:43:34,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:43:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:43:34,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:43:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2018-11-28 20:43:34,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2018-11-28 20:43:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:43:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:43:34,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:43:34,779 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-28 20:43:35,349 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:43:35,349 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:43:35,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:35 BoogieIcfgContainer [2018-11-28 20:43:35,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:43:35,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:43:35,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:43:35,356 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:43:35,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:43:33" (1/3) ... [2018-11-28 20:43:35,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f0371d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:35, skipping insertion in model container [2018-11-28 20:43:35,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:34" (2/3) ... [2018-11-28 20:43:35,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f0371d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:35, skipping insertion in model container [2018-11-28 20:43:35,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:35" (3/3) ... [2018-11-28 20:43:35,361 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.opt_true-unreach-call.i [2018-11-28 20:43:35,400 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,400 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,400 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,401 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,401 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,401 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,401 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,402 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,403 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,403 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,403 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,403 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,404 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,405 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,405 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,405 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,405 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,405 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,406 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,406 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,406 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,406 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,408 WARN L317 ript$VariableManager]: TermVariabe Thread2_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,408 WARN L317 ript$VariableManager]: TermVariabe Thread2_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,409 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,409 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,409 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,410 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,410 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,410 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,411 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,411 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,413 WARN L317 ript$VariableManager]: TermVariabe Thread3_P3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,413 WARN L317 ript$VariableManager]: TermVariabe Thread3_P3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,413 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#t~nondet6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,413 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#t~nondet6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,413 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,414 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,415 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#t~nondet6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,415 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#t~nondet6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:35,465 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:43:35,466 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:43:35,474 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:43:35,492 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:43:35,519 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:43:35,520 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:43:35,520 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:43:35,520 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:43:35,520 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:43:35,520 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:43:35,520 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:43:35,520 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:43:35,521 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:43:35,532 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68places, 64 transitions [2018-11-28 20:43:36,523 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13136 states. [2018-11-28 20:43:36,525 INFO L276 IsEmpty]: Start isEmpty. Operand 13136 states. [2018-11-28 20:43:36,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-28 20:43:36,557 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:36,558 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, 1] [2018-11-28 20:43:36,560 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:36,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:36,567 INFO L82 PathProgramCache]: Analyzing trace with hash -791038270, now seen corresponding path program 1 times [2018-11-28 20:43:36,570 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:36,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:36,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:36,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:36,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:36,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:36,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:36,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:43:36,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:43:36,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:43:36,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:43:36,947 INFO L87 Difference]: Start difference. First operand 13136 states. Second operand 4 states. [2018-11-28 20:43:37,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:37,448 INFO L93 Difference]: Finished difference Result 13742 states and 55793 transitions. [2018-11-28 20:43:37,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:43:37,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2018-11-28 20:43:37,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:37,559 INFO L225 Difference]: With dead ends: 13742 [2018-11-28 20:43:37,560 INFO L226 Difference]: Without dead ends: 5629 [2018-11-28 20:43:37,562 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 [2018-11-28 20:43:37,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5629 states. [2018-11-28 20:43:38,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5629 to 5629. [2018-11-28 20:43:38,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5629 states. [2018-11-28 20:43:38,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5629 states to 5629 states and 22352 transitions. [2018-11-28 20:43:38,153 INFO L78 Accepts]: Start accepts. Automaton has 5629 states and 22352 transitions. Word has length 35 [2018-11-28 20:43:38,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:38,154 INFO L480 AbstractCegarLoop]: Abstraction has 5629 states and 22352 transitions. [2018-11-28 20:43:38,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:43:38,154 INFO L276 IsEmpty]: Start isEmpty. Operand 5629 states and 22352 transitions. [2018-11-28 20:43:38,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 20:43:38,164 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:38,164 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, 1, 1] [2018-11-28 20:43:38,164 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:38,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:38,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1324297606, now seen corresponding path program 1 times [2018-11-28 20:43:38,165 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:38,165 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:38,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:38,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:38,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:38,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:38,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:38,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:43:38,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:43:38,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:43:38,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:43:38,498 INFO L87 Difference]: Start difference. First operand 5629 states and 22352 transitions. Second operand 5 states. [2018-11-28 20:43:39,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:39,152 INFO L93 Difference]: Finished difference Result 6141 states and 23832 transitions. [2018-11-28 20:43:39,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:43:39,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2018-11-28 20:43:39,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:39,201 INFO L225 Difference]: With dead ends: 6141 [2018-11-28 20:43:39,202 INFO L226 Difference]: Without dead ends: 5517 [2018-11-28 20:43:39,203 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:39,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5517 states. [2018-11-28 20:43:39,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5517 to 5517. [2018-11-28 20:43:39,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5517 states. [2018-11-28 20:43:39,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5517 states to 5517 states and 21820 transitions. [2018-11-28 20:43:39,395 INFO L78 Accepts]: Start accepts. Automaton has 5517 states and 21820 transitions. Word has length 36 [2018-11-28 20:43:39,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:39,396 INFO L480 AbstractCegarLoop]: Abstraction has 5517 states and 21820 transitions. [2018-11-28 20:43:39,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:43:39,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5517 states and 21820 transitions. [2018-11-28 20:43:39,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-28 20:43:39,406 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:39,406 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, 1, 1, 1] [2018-11-28 20:43:39,407 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:39,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:39,407 INFO L82 PathProgramCache]: Analyzing trace with hash -999628882, now seen corresponding path program 1 times [2018-11-28 20:43:39,407 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:39,407 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:39,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:39,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:39,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:39,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:39,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:39,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:43:39,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:43:39,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:43:39,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:43:39,809 INFO L87 Difference]: Start difference. First operand 5517 states and 21820 transitions. Second operand 6 states. [2018-11-28 20:43:40,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:40,326 INFO L93 Difference]: Finished difference Result 5453 states and 20828 transitions. [2018-11-28 20:43:40,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:40,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2018-11-28 20:43:40,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:40,375 INFO L225 Difference]: With dead ends: 5453 [2018-11-28 20:43:40,375 INFO L226 Difference]: Without dead ends: 4845 [2018-11-28 20:43:40,378 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-28 20:43:40,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4845 states. [2018-11-28 20:43:40,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4845 to 4845. [2018-11-28 20:43:40,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4845 states. [2018-11-28 20:43:40,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4845 states to 4845 states and 18796 transitions. [2018-11-28 20:43:40,554 INFO L78 Accepts]: Start accepts. Automaton has 4845 states and 18796 transitions. Word has length 37 [2018-11-28 20:43:40,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:40,555 INFO L480 AbstractCegarLoop]: Abstraction has 4845 states and 18796 transitions. [2018-11-28 20:43:40,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:43:40,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4845 states and 18796 transitions. [2018-11-28 20:43:40,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-28 20:43:40,564 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:40,564 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, 1, 1, 1, 1] [2018-11-28 20:43:40,564 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:40,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:40,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1893784710, now seen corresponding path program 1 times [2018-11-28 20:43:40,565 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:40,565 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:40,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:40,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:40,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:40,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:40,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:40,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:40,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:40,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:40,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:40,844 INFO L87 Difference]: Start difference. First operand 4845 states and 18796 transitions. Second operand 7 states. [2018-11-28 20:43:41,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:41,470 INFO L93 Difference]: Finished difference Result 3565 states and 13036 transitions. [2018-11-28 20:43:41,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:43:41,470 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-11-28 20:43:41,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:41,505 INFO L225 Difference]: With dead ends: 3565 [2018-11-28 20:43:41,505 INFO L226 Difference]: Without dead ends: 3053 [2018-11-28 20:43:41,506 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:43:41,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2018-11-28 20:43:41,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 3053. [2018-11-28 20:43:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3053 states. [2018-11-28 20:43:41,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 11180 transitions. [2018-11-28 20:43:41,652 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 11180 transitions. Word has length 38 [2018-11-28 20:43:41,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:41,652 INFO L480 AbstractCegarLoop]: Abstraction has 3053 states and 11180 transitions. [2018-11-28 20:43:41,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:41,652 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 11180 transitions. [2018-11-28 20:43:41,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-28 20:43:41,661 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:41,661 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, 1, 1, 1, 1, 1] [2018-11-28 20:43:41,661 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:41,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:41,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1572457708, now seen corresponding path program 1 times [2018-11-28 20:43:41,662 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:41,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:41,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:41,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:41,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:41,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:41,893 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:41,893 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:41,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:41,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:41,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:41,894 INFO L87 Difference]: Start difference. First operand 3053 states and 11180 transitions. Second operand 7 states. [2018-11-28 20:43:42,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:42,421 INFO L93 Difference]: Finished difference Result 4733 states and 17540 transitions. [2018-11-28 20:43:42,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:42,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2018-11-28 20:43:42,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:42,435 INFO L225 Difference]: With dead ends: 4733 [2018-11-28 20:43:42,435 INFO L226 Difference]: Without dead ends: 2457 [2018-11-28 20:43:42,436 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:43:42,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2457 states. [2018-11-28 20:43:42,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2457 to 2457. [2018-11-28 20:43:42,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2457 states. [2018-11-28 20:43:42,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2457 states to 2457 states and 9124 transitions. [2018-11-28 20:43:42,520 INFO L78 Accepts]: Start accepts. Automaton has 2457 states and 9124 transitions. Word has length 39 [2018-11-28 20:43:42,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:42,520 INFO L480 AbstractCegarLoop]: Abstraction has 2457 states and 9124 transitions. [2018-11-28 20:43:42,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:42,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2457 states and 9124 transitions. [2018-11-28 20:43:42,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-28 20:43:42,525 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:42,525 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, 1, 1, 1, 1, 1] [2018-11-28 20:43:42,526 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:42,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:42,526 INFO L82 PathProgramCache]: Analyzing trace with hash 540968834, now seen corresponding path program 2 times [2018-11-28 20:43:42,526 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:42,526 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:42,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:42,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:42,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:42,836 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:42,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:42,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:42,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:42,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:42,837 INFO L87 Difference]: Start difference. First operand 2457 states and 9124 transitions. Second operand 7 states. [2018-11-28 20:43:43,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:43,106 INFO L93 Difference]: Finished difference Result 4057 states and 15220 transitions. [2018-11-28 20:43:43,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:43,107 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2018-11-28 20:43:43,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:43,115 INFO L225 Difference]: With dead ends: 4057 [2018-11-28 20:43:43,116 INFO L226 Difference]: Without dead ends: 2261 [2018-11-28 20:43:43,116 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:43:43,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2018-11-28 20:43:43,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2261. [2018-11-28 20:43:43,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2261 states. [2018-11-28 20:43:43,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 8528 transitions. [2018-11-28 20:43:43,182 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 8528 transitions. Word has length 39 [2018-11-28 20:43:43,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:43,182 INFO L480 AbstractCegarLoop]: Abstraction has 2261 states and 8528 transitions. [2018-11-28 20:43:43,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:43,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 8528 transitions. [2018-11-28 20:43:43,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-28 20:43:43,187 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:43,187 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, 1, 1, 1, 1, 1] [2018-11-28 20:43:43,188 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:43,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:43,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1549190684, now seen corresponding path program 3 times [2018-11-28 20:43:43,189 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:43,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:43,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:43,192 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:43:43,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:43,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:43,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:43,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:43,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:43,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:43,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:43,530 INFO L87 Difference]: Start difference. First operand 2261 states and 8528 transitions. Second operand 7 states. [2018-11-28 20:43:43,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:43,680 INFO L93 Difference]: Finished difference Result 3797 states and 14416 transitions. [2018-11-28 20:43:43,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:43,681 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2018-11-28 20:43:43,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:43,690 INFO L225 Difference]: With dead ends: 3797 [2018-11-28 20:43:43,690 INFO L226 Difference]: Without dead ends: 2161 [2018-11-28 20:43:43,691 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:43:43,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2018-11-28 20:43:43,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 2161. [2018-11-28 20:43:43,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2161 states. [2018-11-28 20:43:43,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 8220 transitions. [2018-11-28 20:43:43,752 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 8220 transitions. Word has length 39 [2018-11-28 20:43:43,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:43,752 INFO L480 AbstractCegarLoop]: Abstraction has 2161 states and 8220 transitions. [2018-11-28 20:43:43,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:43,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 8220 transitions. [2018-11-28 20:43:43,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-28 20:43:43,755 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:43,755 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, 1, 1, 1, 1, 1] [2018-11-28 20:43:43,756 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:43,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:43,756 INFO L82 PathProgramCache]: Analyzing trace with hash -481726390, now seen corresponding path program 4 times [2018-11-28 20:43:43,756 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:43,756 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:43,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:43,758 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:43:43,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:44,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:44,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:44,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:44,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:44,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:44,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:44,330 INFO L87 Difference]: Start difference. First operand 2161 states and 8220 transitions. Second operand 7 states. [2018-11-28 20:43:44,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:44,436 INFO L93 Difference]: Finished difference Result 1649 states and 6172 transitions. [2018-11-28 20:43:44,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:44,437 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2018-11-28 20:43:44,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:44,437 INFO L225 Difference]: With dead ends: 1649 [2018-11-28 20:43:44,437 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:43:44,438 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:43:44,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:43:44,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:43:44,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:43:44,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:43:44,439 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2018-11-28 20:43:44,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:44,439 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:43:44,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:44,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:43:44,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:43:44,442 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:43:44,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:43:44 BasicIcfg [2018-11-28 20:43:44,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:43:44,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:43:44,445 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:43:44,445 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:43:44,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:35" (3/4) ... [2018-11-28 20:43:44,450 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:43:44,458 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:43:44,458 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:43:44,458 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:43:44,459 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2018-11-28 20:43:44,464 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-28 20:43:44,464 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:43:44,518 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:43:44,518 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:43:44,519 INFO L168 Benchmark]: Toolchain (without parser) took 10667.31 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 334.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 155.2 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:44,521 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-11-28 20:43:44,521 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -194.2 MB). Peak memory consumption was 49.0 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:44,522 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.21 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:44,523 INFO L168 Benchmark]: Boogie Preprocessor took 35.18 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. [2018-11-28 20:43:44,523 INFO L168 Benchmark]: RCFGBuilder took 657.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:44,524 INFO L168 Benchmark]: TraceAbstraction took 9093.17 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -16.3 MB). Peak memory consumption was 173.0 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:44,525 INFO L168 Benchmark]: Witness Printer took 73.13 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-28 20:43:44,529 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 746.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -194.2 MB). Peak memory consumption was 49.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.21 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.18 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 657.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9093.17 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -16.3 MB). Peak memory consumption was 173.0 MB. Max. memory is 11.5 GB. * Witness Printer took 73.13 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24 B). Peak memory consumption was 24 B. 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 9 procedures, 88 locations, 1 error locations. SAFE Result, 8.9s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 3.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 560 SDtfs, 855 SDslu, 1528 SDs, 0 SdLazy, 188 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13136occurred 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: 1.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 302 NumberOfCodeBlocks, 302 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 27742 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...