./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe017_tso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/pthread-wmm/safe017_tso.oepc_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 f720b155c4e1404412dced91dce994a548c916f1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-13 05:50:26,067 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 05:50:26,069 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 05:50:26,081 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 05:50:26,082 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 05:50:26,083 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 05:50:26,084 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 05:50:26,086 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 05:50:26,088 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 05:50:26,089 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 05:50:26,090 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 05:50:26,091 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 05:50:26,092 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 05:50:26,093 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 05:50:26,094 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 05:50:26,096 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 05:50:26,097 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 05:50:26,099 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 05:50:26,101 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 05:50:26,103 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 05:50:26,105 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 05:50:26,106 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 05:50:26,109 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 05:50:26,110 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 05:50:26,110 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 05:50:26,111 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 05:50:26,113 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 05:50:26,114 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 05:50:26,115 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 05:50:26,116 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 05:50:26,116 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 05:50:26,118 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 05:50:26,118 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 05:50:26,118 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 05:50:26,119 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 05:50:26,120 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 05:50:26,121 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-13 05:50:26,136 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 05:50:26,136 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 05:50:26,138 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 05:50:26,138 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 05:50:26,139 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 05:50:26,139 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 05:50:26,139 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-13 05:50:26,139 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 05:50:26,139 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-13 05:50:26,139 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 05:50:26,140 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-13 05:50:26,140 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 05:50:26,140 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-13 05:50:26,140 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-13 05:50:26,140 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-13 05:50:26,140 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 05:50:26,141 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-13 05:50:26,142 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 05:50:26,142 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 05:50:26,143 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 05:50:26,143 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 05:50:26,143 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 05:50:26,143 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 05:50:26,143 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 05:50:26,144 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-13 05:50:26,145 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 05:50:26,145 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 05:50:26,145 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-13 05:50:26,145 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 -> f720b155c4e1404412dced91dce994a548c916f1 [2019-01-13 05:50:26,183 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 05:50:26,196 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 05:50:26,200 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 05:50:26,202 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 05:50:26,203 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 05:50:26,204 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe017_tso.oepc_true-unreach-call.i [2019-01-13 05:50:26,285 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f885f406/d3f652ca889348ccb148833ae74f97e1/FLAG7b3d4f5c6 [2019-01-13 05:50:26,769 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 05:50:26,770 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe017_tso.oepc_true-unreach-call.i [2019-01-13 05:50:26,796 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f885f406/d3f652ca889348ccb148833ae74f97e1/FLAG7b3d4f5c6 [2019-01-13 05:50:27,062 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f885f406/d3f652ca889348ccb148833ae74f97e1 [2019-01-13 05:50:27,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 05:50:27,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-13 05:50:27,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 05:50:27,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 05:50:27,072 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 05:50:27,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 05:50:27" (1/1) ... [2019-01-13 05:50:27,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2132f636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:27, skipping insertion in model container [2019-01-13 05:50:27,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 05:50:27" (1/1) ... [2019-01-13 05:50:27,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 05:50:27,130 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 05:50:27,627 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 05:50:27,646 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 05:50:27,794 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 05:50:27,879 INFO L195 MainTranslator]: Completed translation [2019-01-13 05:50:27,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:27 WrapperNode [2019-01-13 05:50:27,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 05:50:27,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-13 05:50:27,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-13 05:50:27,881 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-13 05:50:27,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:27" (1/1) ... [2019-01-13 05:50:27,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:27" (1/1) ... [2019-01-13 05:50:27,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-13 05:50:27,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 05:50:27,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 05:50:27,943 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 05:50:27,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:27" (1/1) ... [2019-01-13 05:50:27,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:27" (1/1) ... [2019-01-13 05:50:27,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:27" (1/1) ... [2019-01-13 05:50:27,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:27" (1/1) ... [2019-01-13 05:50:27,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:27" (1/1) ... [2019-01-13 05:50:27,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:27" (1/1) ... [2019-01-13 05:50:27,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:27" (1/1) ... [2019-01-13 05:50:27,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 05:50:27,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 05:50:27,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 05:50:27,973 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 05:50:27,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 05:50:28,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-13 05:50:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-13 05:50:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 05:50:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 05:50:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-13 05:50:28,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-13 05:50:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-13 05:50:28,036 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-13 05:50:28,036 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-13 05:50:28,036 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-13 05:50:28,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-13 05:50:28,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 05:50:28,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 05:50:28,039 WARN L204 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-13 05:50:28,500 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 05:50:28,500 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-13 05:50:28,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:50:28 BoogieIcfgContainer [2019-01-13 05:50:28,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 05:50:28,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 05:50:28,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 05:50:28,507 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 05:50:28,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 05:50:27" (1/3) ... [2019-01-13 05:50:28,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11cc343f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 05:50:28, skipping insertion in model container [2019-01-13 05:50:28,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:27" (2/3) ... [2019-01-13 05:50:28,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11cc343f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 05:50:28, skipping insertion in model container [2019-01-13 05:50:28,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:50:28" (3/3) ... [2019-01-13 05:50:28,511 INFO L112 eAbstractionObserver]: Analyzing ICFG safe017_tso.oepc_true-unreach-call.i [2019-01-13 05:50:28,546 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,546 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,547 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,547 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,547 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,547 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,547 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,549 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,549 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,550 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,551 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,551 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,551 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,551 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,551 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,552 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,552 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,552 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,552 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,552 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,554 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,554 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,555 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,555 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,555 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,555 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,555 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,556 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,557 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,557 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:28,577 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-13 05:50:28,578 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 05:50:28,587 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-13 05:50:28,604 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-13 05:50:28,630 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 05:50:28,631 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 05:50:28,631 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-13 05:50:28,631 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 05:50:28,632 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 05:50:28,632 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 05:50:28,632 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 05:50:28,632 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 05:50:28,632 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 05:50:28,642 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54places, 51 transitions [2019-01-13 05:50:28,789 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2383 states. [2019-01-13 05:50:28,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states. [2019-01-13 05:50:28,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-01-13 05:50:28,821 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:28,822 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] [2019-01-13 05:50:28,825 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:28,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:28,832 INFO L82 PathProgramCache]: Analyzing trace with hash -96387719, now seen corresponding path program 1 times [2019-01-13 05:50:28,835 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:28,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:28,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:28,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:28,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:29,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:29,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:29,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 05:50:29,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-13 05:50:29,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-13 05:50:29,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-13 05:50:29,234 INFO L87 Difference]: Start difference. First operand 2383 states. Second operand 4 states. [2019-01-13 05:50:29,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:29,581 INFO L93 Difference]: Finished difference Result 2491 states and 8067 transitions. [2019-01-13 05:50:29,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 05:50:29,584 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-01-13 05:50:29,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:29,625 INFO L225 Difference]: With dead ends: 2491 [2019-01-13 05:50:29,625 INFO L226 Difference]: Without dead ends: 1126 [2019-01-13 05:50:29,628 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-13 05:50:29,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2019-01-13 05:50:29,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2019-01-13 05:50:29,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2019-01-13 05:50:29,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 3556 transitions. [2019-01-13 05:50:29,796 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 3556 transitions. Word has length 28 [2019-01-13 05:50:29,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:29,797 INFO L480 AbstractCegarLoop]: Abstraction has 1126 states and 3556 transitions. [2019-01-13 05:50:29,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-13 05:50:29,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 3556 transitions. [2019-01-13 05:50:29,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-01-13 05:50:29,802 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:29,802 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] [2019-01-13 05:50:29,802 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:29,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:29,803 INFO L82 PathProgramCache]: Analyzing trace with hash -180410605, now seen corresponding path program 1 times [2019-01-13 05:50:29,803 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:29,803 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:29,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:29,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:29,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:30,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:30,020 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:30,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-13 05:50:30,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 05:50:30,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 05:50:30,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-13 05:50:30,025 INFO L87 Difference]: Start difference. First operand 1126 states and 3556 transitions. Second operand 5 states. [2019-01-13 05:50:30,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:30,297 INFO L93 Difference]: Finished difference Result 1166 states and 3550 transitions. [2019-01-13 05:50:30,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-13 05:50:30,298 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-01-13 05:50:30,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:30,308 INFO L225 Difference]: With dead ends: 1166 [2019-01-13 05:50:30,309 INFO L226 Difference]: Without dead ends: 1042 [2019-01-13 05:50:30,310 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-13 05:50:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2019-01-13 05:50:30,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2019-01-13 05:50:30,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2019-01-13 05:50:30,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 3241 transitions. [2019-01-13 05:50:30,354 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 3241 transitions. Word has length 29 [2019-01-13 05:50:30,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:30,355 INFO L480 AbstractCegarLoop]: Abstraction has 1042 states and 3241 transitions. [2019-01-13 05:50:30,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 05:50:30,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 3241 transitions. [2019-01-13 05:50:30,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-01-13 05:50:30,359 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:30,360 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] [2019-01-13 05:50:30,360 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:30,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:30,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1508223209, now seen corresponding path program 1 times [2019-01-13 05:50:30,361 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:30,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:30,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:30,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:30,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:30,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:30,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-13 05:50:30,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-13 05:50:30,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-13 05:50:30,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-13 05:50:30,514 INFO L87 Difference]: Start difference. First operand 1042 states and 3241 transitions. Second operand 6 states. [2019-01-13 05:50:30,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:30,713 INFO L93 Difference]: Finished difference Result 818 states and 2377 transitions. [2019-01-13 05:50:30,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 05:50:30,714 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-01-13 05:50:30,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:30,721 INFO L225 Difference]: With dead ends: 818 [2019-01-13 05:50:30,721 INFO L226 Difference]: Without dead ends: 706 [2019-01-13 05:50:30,722 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-01-13 05:50:30,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2019-01-13 05:50:30,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2019-01-13 05:50:30,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2019-01-13 05:50:30,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2065 transitions. [2019-01-13 05:50:30,751 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2065 transitions. Word has length 30 [2019-01-13 05:50:30,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:30,753 INFO L480 AbstractCegarLoop]: Abstraction has 706 states and 2065 transitions. [2019-01-13 05:50:30,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-13 05:50:30,753 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2065 transitions. [2019-01-13 05:50:30,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-13 05:50:30,756 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:30,757 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 05:50:30,757 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:30,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:30,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1020559073, now seen corresponding path program 1 times [2019-01-13 05:50:30,758 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:30,758 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:30,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:30,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:30,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:30,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:30,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:30,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-13 05:50:30,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-13 05:50:30,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-13 05:50:30,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-13 05:50:30,984 INFO L87 Difference]: Start difference. First operand 706 states and 2065 transitions. Second operand 7 states. [2019-01-13 05:50:31,232 WARN L181 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2019-01-13 05:50:31,608 WARN L181 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2019-01-13 05:50:31,850 WARN L181 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2019-01-13 05:50:31,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:31,869 INFO L93 Difference]: Finished difference Result 1170 states and 3449 transitions. [2019-01-13 05:50:31,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-13 05:50:31,870 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2019-01-13 05:50:31,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:31,880 INFO L225 Difference]: With dead ends: 1170 [2019-01-13 05:50:31,881 INFO L226 Difference]: Without dead ends: 670 [2019-01-13 05:50:31,882 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-01-13 05:50:31,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2019-01-13 05:50:31,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2019-01-13 05:50:31,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2019-01-13 05:50:31,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1961 transitions. [2019-01-13 05:50:31,907 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1961 transitions. Word has length 31 [2019-01-13 05:50:31,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:31,908 INFO L480 AbstractCegarLoop]: Abstraction has 670 states and 1961 transitions. [2019-01-13 05:50:31,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-13 05:50:31,908 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1961 transitions. [2019-01-13 05:50:31,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-13 05:50:31,914 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:31,914 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 05:50:31,914 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:31,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:31,915 INFO L82 PathProgramCache]: Analyzing trace with hash 862008853, now seen corresponding path program 2 times [2019-01-13 05:50:31,915 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:31,915 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:31,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:31,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:31,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:32,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:32,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-13 05:50:32,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-13 05:50:32,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-13 05:50:32,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-13 05:50:32,139 INFO L87 Difference]: Start difference. First operand 670 states and 1961 transitions. Second operand 7 states. [2019-01-13 05:50:32,358 WARN L181 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2019-01-13 05:50:32,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:32,610 INFO L93 Difference]: Finished difference Result 1070 states and 3185 transitions. [2019-01-13 05:50:32,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-13 05:50:32,611 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2019-01-13 05:50:32,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:32,617 INFO L225 Difference]: With dead ends: 1070 [2019-01-13 05:50:32,618 INFO L226 Difference]: Without dead ends: 554 [2019-01-13 05:50:32,618 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 [2019-01-13 05:50:32,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2019-01-13 05:50:32,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2019-01-13 05:50:32,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2019-01-13 05:50:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1669 transitions. [2019-01-13 05:50:32,638 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1669 transitions. Word has length 31 [2019-01-13 05:50:32,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:32,638 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 1669 transitions. [2019-01-13 05:50:32,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-13 05:50:32,639 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1669 transitions. [2019-01-13 05:50:32,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-13 05:50:32,642 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:32,642 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 05:50:32,643 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:32,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:32,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1509348813, now seen corresponding path program 3 times [2019-01-13 05:50:32,643 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:32,643 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:32,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:32,651 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-13 05:50:32,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:33,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:33,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:33,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-13 05:50:33,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-13 05:50:33,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-13 05:50:33,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-13 05:50:33,090 INFO L87 Difference]: Start difference. First operand 554 states and 1669 transitions. Second operand 7 states. [2019-01-13 05:50:33,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:33,264 INFO L93 Difference]: Finished difference Result 426 states and 1253 transitions. [2019-01-13 05:50:33,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 05:50:33,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2019-01-13 05:50:33,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:33,266 INFO L225 Difference]: With dead ends: 426 [2019-01-13 05:50:33,266 INFO L226 Difference]: Without dead ends: 0 [2019-01-13 05:50:33,266 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-01-13 05:50:33,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-13 05:50:33,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-13 05:50:33,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-13 05:50:33,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-13 05:50:33,267 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-01-13 05:50:33,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:33,268 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-13 05:50:33,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-13 05:50:33,268 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-13 05:50:33,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-13 05:50:33,271 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-13 05:50:33,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 05:50:33 BasicIcfg [2019-01-13 05:50:33,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 05:50:33,273 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 05:50:33,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 05:50:33,274 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 05:50:33,274 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:50:28" (3/4) ... [2019-01-13 05:50:33,279 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-13 05:50:33,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-13 05:50:33,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-13 05:50:33,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-13 05:50:33,291 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-13 05:50:33,291 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-13 05:50:33,336 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-13 05:50:33,336 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 05:50:33,337 INFO L168 Benchmark]: Toolchain (without parser) took 6270.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 947.3 MB in the beginning and 828.8 MB in the end (delta: 118.6 MB). Peak memory consumption was 250.2 MB. Max. memory is 11.5 GB. [2019-01-13 05:50:33,339 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 05:50:33,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 812.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -157.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2019-01-13 05:50:33,340 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.99 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. [2019-01-13 05:50:33,341 INFO L168 Benchmark]: Boogie Preprocessor took 29.09 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. [2019-01-13 05:50:33,342 INFO L168 Benchmark]: RCFGBuilder took 529.75 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2019-01-13 05:50:33,342 INFO L168 Benchmark]: TraceAbstraction took 4769.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 835.5 MB in the end (delta: 243.4 MB). Peak memory consumption was 243.4 MB. Max. memory is 11.5 GB. [2019-01-13 05:50:33,344 INFO L168 Benchmark]: Witness Printer took 62.67 ms. Allocated memory is still 1.2 GB. Free memory was 835.5 MB in the beginning and 828.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-13 05:50:33,349 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 812.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -157.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.99 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. * Boogie Preprocessor took 29.09 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. * RCFGBuilder took 529.75 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4769.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 835.5 MB in the end (delta: 243.4 MB). Peak memory consumption was 243.4 MB. Max. memory is 11.5 GB. * Witness Printer took 62.67 ms. Allocated memory is still 1.2 GB. Free memory was 835.5 MB in the beginning and 828.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 69 locations, 1 error locations. SAFE Result, 4.6s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 348 SDtfs, 410 SDslu, 937 SDs, 0 SdLazy, 114 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2383occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 12966 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...