./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/thin002_tso.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/thin002_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 e5c28b64dced7375be2011a670be7b0024d9ff8d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:44:13,837 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:44:13,839 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:44:13,853 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:44:13,860 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:44:13,861 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:44:13,863 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:44:13,869 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:44:13,871 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:44:13,872 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:44:13,872 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:44:13,873 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:44:13,874 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:44:13,875 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:44:13,876 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:44:13,877 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:44:13,878 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:44:13,880 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:44:13,883 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:44:13,884 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:44:13,886 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:44:13,887 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:44:13,889 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:44:13,890 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:44:13,890 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:44:13,891 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:44:13,892 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:44:13,893 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:44:13,894 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:44:13,896 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:44:13,896 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:44:13,897 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:44:13,897 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:44:13,897 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:44:13,899 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:44:13,900 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:44:13,900 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:44:13,917 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:44:13,917 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:44:13,918 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:44:13,918 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:44:13,921 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:44:13,922 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:44:13,922 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:44:13,922 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:44:13,922 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:44:13,923 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:44:13,923 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:44:13,923 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:44:13,923 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:44:13,923 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:44:13,924 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:44:13,925 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:44:13,926 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:44:13,926 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:44:13,926 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:44:13,926 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:44:13,926 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:44:13,927 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:44:13,929 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:44:13,929 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:44:13,929 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:44:13,929 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:44:13,929 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:44:13,930 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:44:13,930 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:44:13,930 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:44:13,930 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 -> e5c28b64dced7375be2011a670be7b0024d9ff8d [2018-11-28 20:44:13,981 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:44:13,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:44:14,002 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:44:14,004 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:44:14,007 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:44:14,007 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/thin002_tso.opt_true-unreach-call.i [2018-11-28 20:44:14,072 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d41b5c66/245ef7aa5d314a2ebd2d82576804265b/FLAG0d5229c89 [2018-11-28 20:44:14,629 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:44:14,630 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/thin002_tso.opt_true-unreach-call.i [2018-11-28 20:44:14,648 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d41b5c66/245ef7aa5d314a2ebd2d82576804265b/FLAG0d5229c89 [2018-11-28 20:44:14,867 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d41b5c66/245ef7aa5d314a2ebd2d82576804265b [2018-11-28 20:44:14,871 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:44:14,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:44:14,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:44:14,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:44:14,878 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:44:14,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:44:14" (1/1) ... [2018-11-28 20:44:14,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3179c65d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:14, skipping insertion in model container [2018-11-28 20:44:14,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:44:14" (1/1) ... [2018-11-28 20:44:14,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:44:14,964 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:44:15,422 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:44:15,446 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:44:15,537 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:44:15,712 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:44:15,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:15 WrapperNode [2018-11-28 20:44:15,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:44:15,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:44:15,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:44:15,714 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:44:15,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:15" (1/1) ... [2018-11-28 20:44:15,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:15" (1/1) ... [2018-11-28 20:44:15,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:44:15,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:44:15,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:44:15,780 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:44:15,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:15" (1/1) ... [2018-11-28 20:44:15,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:15" (1/1) ... [2018-11-28 20:44:15,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:15" (1/1) ... [2018-11-28 20:44:15,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:15" (1/1) ... [2018-11-28 20:44:15,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:15" (1/1) ... [2018-11-28 20:44:15,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:15" (1/1) ... [2018-11-28 20:44:15,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:15" (1/1) ... [2018-11-28 20:44:15,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:44:15,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:44:15,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:44:15,812 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:44:15,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:15" (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 20:44:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:44:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:44:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:44:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:44:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:44:15,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:44:15,881 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:44:15,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:44:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:44:15,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:44:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2018-11-28 20:44:15,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2018-11-28 20:44:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:44:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:44:15,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:44:15,884 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 20:44:16,487 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:44:16,487 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:44:16,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:44:16 BoogieIcfgContainer [2018-11-28 20:44:16,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:44:16,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:44:16,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:44:16,494 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:44:16,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:44:14" (1/3) ... [2018-11-28 20:44:16,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c94bb86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:44:16, skipping insertion in model container [2018-11-28 20:44:16,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:44:15" (2/3) ... [2018-11-28 20:44:16,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c94bb86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:44:16, skipping insertion in model container [2018-11-28 20:44:16,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:44:16" (3/3) ... [2018-11-28 20:44:16,499 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt_true-unreach-call.i [2018-11-28 20:44:16,535 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,535 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,535 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,536 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,536 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,536 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,536 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,536 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,537 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,537 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,537 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,539 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,539 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,540 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,540 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,540 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,541 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,541 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,541 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,541 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,541 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,542 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,542 WARN L317 ript$VariableManager]: TermVariabe Thread2_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,542 WARN L317 ript$VariableManager]: TermVariabe Thread2_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,542 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,542 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,542 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,543 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,543 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,543 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,543 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,544 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,544 WARN L317 ript$VariableManager]: TermVariabe Thread3_P3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,544 WARN L317 ript$VariableManager]: TermVariabe Thread3_P3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,544 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#t~nondet6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,544 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#t~nondet6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,544 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,544 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,545 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#t~nondet6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,545 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#t~nondet6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:44:16,571 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:44:16,571 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:44:16,580 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:44:16,597 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:44:16,621 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:44:16,621 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:44:16,622 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:44:16,622 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:44:16,622 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:44:16,622 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:44:16,622 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:44:16,622 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:44:16,622 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:44:16,636 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70places, 66 transitions [2018-11-28 20:44:17,779 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13138 states. [2018-11-28 20:44:17,781 INFO L276 IsEmpty]: Start isEmpty. Operand 13138 states. [2018-11-28 20:44:17,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-28 20:44:17,817 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:17,818 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 20:44:17,821 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:17,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:17,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1445141644, now seen corresponding path program 1 times [2018-11-28 20:44:17,830 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:17,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:17,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:17,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:17,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:18,229 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 20:44:18,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:18,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:44:18,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:44:18,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:44:18,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:44:18,253 INFO L87 Difference]: Start difference. First operand 13138 states. Second operand 4 states. [2018-11-28 20:44:18,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:18,743 INFO L93 Difference]: Finished difference Result 13744 states and 55795 transitions. [2018-11-28 20:44:18,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:44:18,746 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2018-11-28 20:44:18,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:18,976 INFO L225 Difference]: With dead ends: 13744 [2018-11-28 20:44:18,978 INFO L226 Difference]: Without dead ends: 5631 [2018-11-28 20:44:18,980 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 20:44:19,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5631 states. [2018-11-28 20:44:19,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5631 to 5631. [2018-11-28 20:44:19,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5631 states. [2018-11-28 20:44:19,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5631 states to 5631 states and 22354 transitions. [2018-11-28 20:44:19,346 INFO L78 Accepts]: Start accepts. Automaton has 5631 states and 22354 transitions. Word has length 37 [2018-11-28 20:44:19,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:19,350 INFO L480 AbstractCegarLoop]: Abstraction has 5631 states and 22354 transitions. [2018-11-28 20:44:19,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:44:19,351 INFO L276 IsEmpty]: Start isEmpty. Operand 5631 states and 22354 transitions. [2018-11-28 20:44:19,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-28 20:44:19,360 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:19,360 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 20:44:19,360 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:19,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:19,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1883999228, now seen corresponding path program 1 times [2018-11-28 20:44:19,361 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:19,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:19,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:19,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:19,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:19,687 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 20:44:19,687 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:19,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:44:19,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:44:19,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:44:19,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:44:19,691 INFO L87 Difference]: Start difference. First operand 5631 states and 22354 transitions. Second operand 5 states. [2018-11-28 20:44:20,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:20,274 INFO L93 Difference]: Finished difference Result 6143 states and 23834 transitions. [2018-11-28 20:44:20,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:44:20,275 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2018-11-28 20:44:20,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:20,325 INFO L225 Difference]: With dead ends: 6143 [2018-11-28 20:44:20,325 INFO L226 Difference]: Without dead ends: 5519 [2018-11-28 20:44:20,326 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:44:20,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5519 states. [2018-11-28 20:44:20,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5519 to 5519. [2018-11-28 20:44:20,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5519 states. [2018-11-28 20:44:20,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5519 states to 5519 states and 21822 transitions. [2018-11-28 20:44:20,518 INFO L78 Accepts]: Start accepts. Automaton has 5519 states and 21822 transitions. Word has length 38 [2018-11-28 20:44:20,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:20,519 INFO L480 AbstractCegarLoop]: Abstraction has 5519 states and 21822 transitions. [2018-11-28 20:44:20,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:44:20,519 INFO L276 IsEmpty]: Start isEmpty. Operand 5519 states and 21822 transitions. [2018-11-28 20:44:20,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-28 20:44:20,528 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:20,529 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 20:44:20,529 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:20,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:20,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1586589234, now seen corresponding path program 1 times [2018-11-28 20:44:20,529 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:20,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:20,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:20,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:20,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:20,718 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 20:44:20,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:20,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:44:20,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:44:20,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:44:20,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:44:20,720 INFO L87 Difference]: Start difference. First operand 5519 states and 21822 transitions. Second operand 6 states. [2018-11-28 20:44:21,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:21,012 INFO L93 Difference]: Finished difference Result 5455 states and 20830 transitions. [2018-11-28 20:44:21,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:44:21,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-11-28 20:44:21,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:21,056 INFO L225 Difference]: With dead ends: 5455 [2018-11-28 20:44:21,056 INFO L226 Difference]: Without dead ends: 4847 [2018-11-28 20:44:21,057 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 [2018-11-28 20:44:21,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2018-11-28 20:44:21,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4847. [2018-11-28 20:44:21,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4847 states. [2018-11-28 20:44:21,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4847 states to 4847 states and 18798 transitions. [2018-11-28 20:44:21,221 INFO L78 Accepts]: Start accepts. Automaton has 4847 states and 18798 transitions. Word has length 39 [2018-11-28 20:44:21,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:21,222 INFO L480 AbstractCegarLoop]: Abstraction has 4847 states and 18798 transitions. [2018-11-28 20:44:21,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:44:21,222 INFO L276 IsEmpty]: Start isEmpty. Operand 4847 states and 18798 transitions. [2018-11-28 20:44:21,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-28 20:44:21,238 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:21,238 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:44:21,238 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:21,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:21,239 INFO L82 PathProgramCache]: Analyzing trace with hash 2117960818, now seen corresponding path program 1 times [2018-11-28 20:44:21,239 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:21,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:21,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:21,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:21,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:21,411 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 20:44:21,412 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:21,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:44:21,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:44:21,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:44:21,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:44:21,414 INFO L87 Difference]: Start difference. First operand 4847 states and 18798 transitions. Second operand 7 states. [2018-11-28 20:44:21,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:21,910 INFO L93 Difference]: Finished difference Result 3567 states and 13038 transitions. [2018-11-28 20:44:21,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:44:21,912 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2018-11-28 20:44:21,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:21,928 INFO L225 Difference]: With dead ends: 3567 [2018-11-28 20:44:21,929 INFO L226 Difference]: Without dead ends: 3055 [2018-11-28 20:44:21,929 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:44:21,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2018-11-28 20:44:22,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 3055. [2018-11-28 20:44:22,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3055 states. [2018-11-28 20:44:22,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3055 states to 3055 states and 11182 transitions. [2018-11-28 20:44:22,055 INFO L78 Accepts]: Start accepts. Automaton has 3055 states and 11182 transitions. Word has length 40 [2018-11-28 20:44:22,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:22,055 INFO L480 AbstractCegarLoop]: Abstraction has 3055 states and 11182 transitions. [2018-11-28 20:44:22,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:44:22,056 INFO L276 IsEmpty]: Start isEmpty. Operand 3055 states and 11182 transitions. [2018-11-28 20:44:22,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-28 20:44:22,064 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:22,064 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, 1, 1] [2018-11-28 20:44:22,064 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:22,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:22,065 INFO L82 PathProgramCache]: Analyzing trace with hash -2066804268, now seen corresponding path program 1 times [2018-11-28 20:44:22,066 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:22,066 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:22,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:22,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:22,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:22,537 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 20:44:22,537 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:22,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-28 20:44:22,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 20:44:22,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 20:44:22,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-11-28 20:44:22,538 INFO L87 Difference]: Start difference. First operand 3055 states and 11182 transitions. Second operand 12 states. [2018-11-28 20:44:23,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:23,072 INFO L93 Difference]: Finished difference Result 5279 states and 19302 transitions. [2018-11-28 20:44:23,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 20:44:23,072 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-11-28 20:44:23,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:23,084 INFO L225 Difference]: With dead ends: 5279 [2018-11-28 20:44:23,084 INFO L226 Difference]: Without dead ends: 3003 [2018-11-28 20:44:23,085 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-11-28 20:44:23,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2018-11-28 20:44:23,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 3003. [2018-11-28 20:44:23,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3003 states. [2018-11-28 20:44:23,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3003 states to 3003 states and 11022 transitions. [2018-11-28 20:44:23,172 INFO L78 Accepts]: Start accepts. Automaton has 3003 states and 11022 transitions. Word has length 41 [2018-11-28 20:44:23,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:23,172 INFO L480 AbstractCegarLoop]: Abstraction has 3003 states and 11022 transitions. [2018-11-28 20:44:23,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 20:44:23,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3003 states and 11022 transitions. [2018-11-28 20:44:23,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-28 20:44:23,179 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:23,179 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, 1, 1] [2018-11-28 20:44:23,180 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:23,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:23,180 INFO L82 PathProgramCache]: Analyzing trace with hash -994845904, now seen corresponding path program 2 times [2018-11-28 20:44:23,180 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:23,180 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:23,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:23,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:44:23,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:23,353 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 20:44:23,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:23,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:44:23,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:44:23,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:44:23,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:44:23,354 INFO L87 Difference]: Start difference. First operand 3003 states and 11022 transitions. Second operand 7 states. [2018-11-28 20:44:23,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:23,494 INFO L93 Difference]: Finished difference Result 4923 states and 18158 transitions. [2018-11-28 20:44:23,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:44:23,495 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2018-11-28 20:44:23,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:23,506 INFO L225 Difference]: With dead ends: 4923 [2018-11-28 20:44:23,506 INFO L226 Difference]: Without dead ends: 2663 [2018-11-28 20:44:23,506 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:44:23,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2663 states. [2018-11-28 20:44:23,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2663 to 2663. [2018-11-28 20:44:23,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2663 states. [2018-11-28 20:44:23,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2663 states to 2663 states and 9870 transitions. [2018-11-28 20:44:23,578 INFO L78 Accepts]: Start accepts. Automaton has 2663 states and 9870 transitions. Word has length 41 [2018-11-28 20:44:23,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:23,578 INFO L480 AbstractCegarLoop]: Abstraction has 2663 states and 9870 transitions. [2018-11-28 20:44:23,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:44:23,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2663 states and 9870 transitions. [2018-11-28 20:44:23,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-28 20:44:23,583 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:23,584 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, 1, 1] [2018-11-28 20:44:23,584 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:23,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:23,584 INFO L82 PathProgramCache]: Analyzing trace with hash 2040016274, now seen corresponding path program 3 times [2018-11-28 20:44:23,584 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:23,584 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:23,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:23,588 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:44:23,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:23,838 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 20:44:23,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:23,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:44:23,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:44:23,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:44:23,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:44:23,840 INFO L87 Difference]: Start difference. First operand 2663 states and 9870 transitions. Second operand 7 states. [2018-11-28 20:44:24,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:24,015 INFO L93 Difference]: Finished difference Result 4263 states and 15966 transitions. [2018-11-28 20:44:24,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:44:24,016 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2018-11-28 20:44:24,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:24,027 INFO L225 Difference]: With dead ends: 4263 [2018-11-28 20:44:24,027 INFO L226 Difference]: Without dead ends: 2263 [2018-11-28 20:44:24,028 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:44:24,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2018-11-28 20:44:24,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 2263. [2018-11-28 20:44:24,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2263 states. [2018-11-28 20:44:24,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 8530 transitions. [2018-11-28 20:44:24,091 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 8530 transitions. Word has length 41 [2018-11-28 20:44:24,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:24,092 INFO L480 AbstractCegarLoop]: Abstraction has 2263 states and 8530 transitions. [2018-11-28 20:44:24,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:44:24,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 8530 transitions. [2018-11-28 20:44:24,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-28 20:44:24,097 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:24,097 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, 1, 1] [2018-11-28 20:44:24,098 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:24,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:24,098 INFO L82 PathProgramCache]: Analyzing trace with hash -390113582, now seen corresponding path program 4 times [2018-11-28 20:44:24,098 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:24,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:24,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:24,102 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:44:24,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:24,363 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 20:44:24,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:24,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-28 20:44:24,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 20:44:24,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 20:44:24,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-11-28 20:44:24,365 INFO L87 Difference]: Start difference. First operand 2263 states and 8530 transitions. Second operand 12 states. [2018-11-28 20:44:24,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:24,654 INFO L93 Difference]: Finished difference Result 3879 states and 14666 transitions. [2018-11-28 20:44:24,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 20:44:24,655 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-11-28 20:44:24,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:24,662 INFO L225 Difference]: With dead ends: 3879 [2018-11-28 20:44:24,663 INFO L226 Difference]: Without dead ends: 2243 [2018-11-28 20:44:24,663 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-11-28 20:44:24,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2018-11-28 20:44:24,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 2243. [2018-11-28 20:44:24,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2243 states. [2018-11-28 20:44:24,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 8490 transitions. [2018-11-28 20:44:24,726 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 8490 transitions. Word has length 41 [2018-11-28 20:44:24,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:24,726 INFO L480 AbstractCegarLoop]: Abstraction has 2243 states and 8490 transitions. [2018-11-28 20:44:24,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 20:44:24,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 8490 transitions. [2018-11-28 20:44:24,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-28 20:44:24,730 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:44:24,730 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, 1, 1] [2018-11-28 20:44:24,731 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:44:24,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:44:24,731 INFO L82 PathProgramCache]: Analyzing trace with hash -663323788, now seen corresponding path program 5 times [2018-11-28 20:44:24,731 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:44:24,731 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:44:24,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:24,735 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:44:24,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:44:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:44:25,030 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 20:44:25,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:44:25,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:44:25,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:44:25,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:44:25,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:44:25,032 INFO L87 Difference]: Start difference. First operand 2243 states and 8490 transitions. Second operand 8 states. [2018-11-28 20:44:25,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:44:25,322 INFO L93 Difference]: Finished difference Result 1731 states and 6442 transitions. [2018-11-28 20:44:25,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:44:25,322 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2018-11-28 20:44:25,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:44:25,323 INFO L225 Difference]: With dead ends: 1731 [2018-11-28 20:44:25,323 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:44:25,323 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-28 20:44:25,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:44:25,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:44:25,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:44:25,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:44:25,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2018-11-28 20:44:25,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:44:25,325 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:44:25,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:44:25,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:44:25,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:44:25,329 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:44:25,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:44:25 BasicIcfg [2018-11-28 20:44:25,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:44:25,332 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:44:25,332 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:44:25,332 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:44:25,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:44:16" (3/4) ... [2018-11-28 20:44:25,335 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:44:25,342 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:44:25,342 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:44:25,342 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:44:25,342 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2018-11-28 20:44:25,347 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-28 20:44:25,347 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:44:25,395 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:44:25,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:44:25,396 INFO L168 Benchmark]: Toolchain (without parser) took 10524.70 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 334.0 MB). Free memory was 947.3 MB in the beginning and 922.3 MB in the end (delta: 25.0 MB). Peak memory consumption was 359.0 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:25,398 INFO L168 Benchmark]: CDTParser took 0.18 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 20:44:25,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 839.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:25,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.82 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 20:44:25,400 INFO L168 Benchmark]: Boogie Preprocessor took 31.99 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 20:44:25,400 INFO L168 Benchmark]: RCFGBuilder took 676.83 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: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:25,401 INFO L168 Benchmark]: TraceAbstraction took 8841.40 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.2 MB). Free memory was 1.1 GB in the beginning and 922.3 MB in the end (delta: 173.3 MB). Peak memory consumption was 360.5 MB. Max. memory is 11.5 GB. [2018-11-28 20:44:25,402 INFO L168 Benchmark]: Witness Printer took 63.94 ms. Allocated memory is still 1.4 GB. Free memory is still 922.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:44:25,409 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 839.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.82 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. * Boogie Preprocessor took 31.99 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 676.83 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: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8841.40 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.2 MB). Free memory was 1.1 GB in the beginning and 922.3 MB in the end (delta: 173.3 MB). Peak memory consumption was 360.5 MB. Max. memory is 11.5 GB. * Witness Printer took 63.94 ms. Allocated memory is still 1.4 GB. Free memory is still 922.3 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 9 procedures, 90 locations, 1 error locations. SAFE Result, 8.7s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 3.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 712 SDtfs, 1190 SDslu, 3013 SDs, 0 SdLazy, 409 SolverSat, 101 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13138occurred 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: 1.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 50310 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...