./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe000_tso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/pthread-wmm/safe000_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 02d4dd22ea8eb2df32b22d7b1fd26b96c78cff7a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 00:55:53,219 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 00:55:53,220 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 00:55:53,233 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 00:55:53,233 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 00:55:53,234 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 00:55:53,236 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 00:55:53,238 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 00:55:53,240 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 00:55:53,241 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 00:55:53,242 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 00:55:53,242 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 00:55:53,243 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 00:55:53,244 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 00:55:53,246 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 00:55:53,246 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 00:55:53,247 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 00:55:53,249 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 00:55:53,252 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 00:55:53,254 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 00:55:53,255 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 00:55:53,256 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 00:55:53,259 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 00:55:53,259 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 00:55:53,260 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 00:55:53,261 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 00:55:53,262 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 00:55:53,263 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 00:55:53,264 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 00:55:53,265 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 00:55:53,266 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 00:55:53,266 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 00:55:53,267 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 00:55:53,267 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 00:55:53,268 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 00:55:53,269 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 00:55:53,270 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-01 00:55:53,286 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 00:55:53,286 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 00:55:53,288 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 00:55:53,288 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 00:55:53,288 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 00:55:53,288 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 00:55:53,288 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 00:55:53,289 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 00:55:53,290 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 00:55:53,290 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 00:55:53,290 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 00:55:53,290 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 00:55:53,290 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 00:55:53,290 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 00:55:53,291 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 00:55:53,291 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 00:55:53,291 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 00:55:53,291 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 00:55:53,291 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 00:55:53,292 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 00:55:53,293 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 00:55:53,293 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:55:53,293 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 00:55:53,294 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 00:55:53,294 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 00:55:53,294 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 00:55:53,294 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 00:55:53,294 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 00:55:53,294 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 -> 02d4dd22ea8eb2df32b22d7b1fd26b96c78cff7a [2019-01-01 00:55:53,331 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 00:55:53,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 00:55:53,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 00:55:53,350 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 00:55:53,350 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 00:55:53,351 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe000_tso.oepc_true-unreach-call.i [2019-01-01 00:55:53,409 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b19fd7e1/cd2a38a8e245439bacca2152f4f79fe5/FLAG13e3280ca [2019-01-01 00:55:53,932 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 00:55:53,933 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe000_tso.oepc_true-unreach-call.i [2019-01-01 00:55:53,950 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b19fd7e1/cd2a38a8e245439bacca2152f4f79fe5/FLAG13e3280ca [2019-01-01 00:55:54,205 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b19fd7e1/cd2a38a8e245439bacca2152f4f79fe5 [2019-01-01 00:55:54,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 00:55:54,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 00:55:54,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 00:55:54,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 00:55:54,217 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 00:55:54,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:55:54" (1/1) ... [2019-01-01 00:55:54,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4454c588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:55:54, skipping insertion in model container [2019-01-01 00:55:54,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:55:54" (1/1) ... [2019-01-01 00:55:54,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 00:55:54,293 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 00:55:54,747 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:55:54,766 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 00:55:54,919 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:55:55,017 INFO L195 MainTranslator]: Completed translation [2019-01-01 00:55:55,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:55:55 WrapperNode [2019-01-01 00:55:55,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 00:55:55,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 00:55:55,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 00:55:55,019 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 00:55:55,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:55:55" (1/1) ... [2019-01-01 00:55:55,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:55:55" (1/1) ... [2019-01-01 00:55:55,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 00:55:55,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 00:55:55,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 00:55:55,078 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 00:55:55,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:55:55" (1/1) ... [2019-01-01 00:55:55,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:55:55" (1/1) ... [2019-01-01 00:55:55,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:55:55" (1/1) ... [2019-01-01 00:55:55,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:55:55" (1/1) ... [2019-01-01 00:55:55,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:55:55" (1/1) ... [2019-01-01 00:55:55,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:55:55" (1/1) ... [2019-01-01 00:55:55,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:55:55" (1/1) ... [2019-01-01 00:55:55,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 00:55:55,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 00:55:55,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 00:55:55,108 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 00:55:55,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:55:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:55:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 00:55:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-01 00:55:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 00:55:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 00:55:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-01 00:55:55,180 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-01 00:55:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-01 00:55:55,180 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-01 00:55:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-01 00:55:55,180 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-01 00:55:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-01 00:55:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 00:55:55,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 00:55:55,186 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-01 00:55:55,668 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 00:55:55,668 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 00:55:55,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:55:55 BoogieIcfgContainer [2019-01-01 00:55:55,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 00:55:55,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 00:55:55,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 00:55:55,674 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 00:55:55,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 12:55:54" (1/3) ... [2019-01-01 00:55:55,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267ff784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:55:55, skipping insertion in model container [2019-01-01 00:55:55,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:55:55" (2/3) ... [2019-01-01 00:55:55,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267ff784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:55:55, skipping insertion in model container [2019-01-01 00:55:55,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:55:55" (3/3) ... [2019-01-01 00:55:55,677 INFO L112 eAbstractionObserver]: Analyzing ICFG safe000_tso.oepc_true-unreach-call.i [2019-01-01 00:55:55,712 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,713 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,713 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,713 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,714 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,714 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,714 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,716 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,716 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,716 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,717 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,717 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,718 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,718 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,718 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,718 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,718 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,718 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,719 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,719 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,719 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,720 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,722 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,722 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,723 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,723 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,723 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,724 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,724 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,725 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:55:55,748 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 00:55:55,748 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 00:55:55,757 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-01 00:55:55,776 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-01 00:55:55,803 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 00:55:55,804 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 00:55:55,805 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 00:55:55,805 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 00:55:55,805 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 00:55:55,805 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 00:55:55,805 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 00:55:55,805 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 00:55:55,806 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 00:55:55,816 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2019-01-01 00:55:55,956 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2019-01-01 00:55:55,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2019-01-01 00:55:55,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-01-01 00:55:55,983 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:55:55,985 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] [2019-01-01 00:55:55,988 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:55:55,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:55:55,995 INFO L82 PathProgramCache]: Analyzing trace with hash 137484955, now seen corresponding path program 1 times [2019-01-01 00:55:55,997 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:55:55,997 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:55:56,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:55:56,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:55:56,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:55:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:55:56,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:55:56,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:55:56,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 00:55:56,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 00:55:56,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 00:55:56,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 00:55:56,373 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2019-01-01 00:55:56,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:55:56,806 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2019-01-01 00:55:56,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 00:55:56,808 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-01-01 00:55:56,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:55:56,853 INFO L225 Difference]: With dead ends: 2493 [2019-01-01 00:55:56,853 INFO L226 Difference]: Without dead ends: 1128 [2019-01-01 00:55:56,855 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:55:56,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-01-01 00:55:56,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2019-01-01 00:55:56,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2019-01-01 00:55:57,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2019-01-01 00:55:57,002 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2019-01-01 00:55:57,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:55:57,003 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2019-01-01 00:55:57,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 00:55:57,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2019-01-01 00:55:57,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:55:57,009 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:55:57,009 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:55:57,009 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:55:57,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:55:57,011 INFO L82 PathProgramCache]: Analyzing trace with hash -2018730703, now seen corresponding path program 1 times [2019-01-01 00:55:57,011 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:55:57,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:55:57,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:55:57,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:55:57,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:55:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:55:57,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:55:57,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:55:57,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 00:55:57,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 00:55:57,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 00:55:57,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:55:57,212 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2019-01-01 00:55:57,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:55:57,807 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2019-01-01 00:55:57,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:55:57,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-01-01 00:55:57,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:55:57,820 INFO L225 Difference]: With dead ends: 1168 [2019-01-01 00:55:57,821 INFO L226 Difference]: Without dead ends: 1044 [2019-01-01 00:55:57,822 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:55:57,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2019-01-01 00:55:57,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2019-01-01 00:55:57,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2019-01-01 00:55:57,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2019-01-01 00:55:57,878 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2019-01-01 00:55:57,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:55:57,879 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2019-01-01 00:55:57,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 00:55:57,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2019-01-01 00:55:57,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-01 00:55:57,883 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:55:57,883 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:55:57,883 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:55:57,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:55:57,884 INFO L82 PathProgramCache]: Analyzing trace with hash 691214767, now seen corresponding path program 1 times [2019-01-01 00:55:57,884 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:55:57,884 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:55:57,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:55:57,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:55:57,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:55:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:55:58,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:55:58,208 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:55:58,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:55:58,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:55:58,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:55:58,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:55:58,211 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2019-01-01 00:55:58,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:55:58,448 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2019-01-01 00:55:58,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:55:58,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-01-01 00:55:58,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:55:58,455 INFO L225 Difference]: With dead ends: 820 [2019-01-01 00:55:58,456 INFO L226 Difference]: Without dead ends: 708 [2019-01-01 00:55:58,456 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-01-01 00:55:58,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-01-01 00:55:58,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2019-01-01 00:55:58,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-01-01 00:55:58,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2019-01-01 00:55:58,485 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2019-01-01 00:55:58,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:55:58,486 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2019-01-01 00:55:58,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:55:58,487 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2019-01-01 00:55:58,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:55:58,490 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:55:58,490 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:55:58,491 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:55:58,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:55:58,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1939982521, now seen corresponding path program 1 times [2019-01-01 00:55:58,491 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:55:58,491 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:55:58,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:55:58,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:55:58,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:55:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:55:59,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:55:59,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:55:59,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 00:55:59,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 00:55:59,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 00:55:59,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:55:59,021 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 7 states. [2019-01-01 00:55:59,439 WARN L181 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-01-01 00:55:59,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:55:59,586 INFO L93 Difference]: Finished difference Result 1188 states and 3491 transitions. [2019-01-01 00:55:59,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:55:59,589 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-01-01 00:55:59,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:55:59,596 INFO L225 Difference]: With dead ends: 1188 [2019-01-01 00:55:59,598 INFO L226 Difference]: Without dead ends: 672 [2019-01-01 00:55:59,599 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-01-01 00:55:59,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2019-01-01 00:55:59,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2019-01-01 00:55:59,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2019-01-01 00:55:59,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1975 transitions. [2019-01-01 00:55:59,624 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1975 transitions. Word has length 33 [2019-01-01 00:55:59,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:55:59,626 INFO L480 AbstractCegarLoop]: Abstraction has 672 states and 1975 transitions. [2019-01-01 00:55:59,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 00:55:59,626 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1975 transitions. [2019-01-01 00:55:59,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:55:59,630 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:55:59,631 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:55:59,631 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:55:59,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:55:59,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1074111855, now seen corresponding path program 2 times [2019-01-01 00:55:59,632 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:55:59,632 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:55:59,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:55:59,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:55:59,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:55:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:55:59,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:55:59,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:55:59,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 00:55:59,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 00:55:59,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 00:55:59,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:55:59,810 INFO L87 Difference]: Start difference. First operand 672 states and 1975 transitions. Second operand 7 states. [2019-01-01 00:56:00,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:00,842 INFO L93 Difference]: Finished difference Result 1840 states and 5567 transitions. [2019-01-01 00:56:00,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-01-01 00:56:00,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-01-01 00:56:00,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:00,847 INFO L225 Difference]: With dead ends: 1840 [2019-01-01 00:56:00,847 INFO L226 Difference]: Without dead ends: 572 [2019-01-01 00:56:00,848 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2019-01-01 00:56:00,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-01-01 00:56:00,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2019-01-01 00:56:00,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-01-01 00:56:00,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 1703 transitions. [2019-01-01 00:56:00,866 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 1703 transitions. Word has length 33 [2019-01-01 00:56:00,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:00,867 INFO L480 AbstractCegarLoop]: Abstraction has 572 states and 1703 transitions. [2019-01-01 00:56:00,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 00:56:00,867 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 1703 transitions. [2019-01-01 00:56:00,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:56:00,868 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:56:00,869 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:56:00,869 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:56:00,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:56:00,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1229284941, now seen corresponding path program 3 times [2019-01-01 00:56:00,871 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:56:00,871 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:56:00,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:00,877 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 00:56:00,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:56:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:56:01,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:56:01,090 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:56:01,090 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 00:56:01,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 00:56:01,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 00:56:01,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-01-01 00:56:01,091 INFO L87 Difference]: Start difference. First operand 572 states and 1703 transitions. Second operand 8 states. [2019-01-01 00:56:01,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:56:01,419 INFO L93 Difference]: Finished difference Result 444 states and 1287 transitions. [2019-01-01 00:56:01,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-01 00:56:01,419 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-01-01 00:56:01,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:56:01,420 INFO L225 Difference]: With dead ends: 444 [2019-01-01 00:56:01,420 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 00:56:01,420 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2019-01-01 00:56:01,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 00:56:01,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 00:56:01,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 00:56:01,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 00:56:01,421 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-01-01 00:56:01,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:56:01,421 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 00:56:01,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 00:56:01,422 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 00:56:01,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 00:56:01,425 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-01 00:56:01,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 12:56:01 BasicIcfg [2019-01-01 00:56:01,427 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 00:56:01,427 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 00:56:01,427 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 00:56:01,427 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 00:56:01,428 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:55:55" (3/4) ... [2019-01-01 00:56:01,432 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 00:56:01,438 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-01 00:56:01,439 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-01 00:56:01,439 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-01 00:56:01,444 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-01 00:56:01,444 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 00:56:01,493 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 00:56:01,493 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 00:56:01,494 INFO L168 Benchmark]: Toolchain (without parser) took 7284.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 952.7 MB in the beginning and 824.1 MB in the end (delta: 128.6 MB). Peak memory consumption was 265.5 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:01,495 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:56:01,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 805.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:01,497 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.85 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. [2019-01-01 00:56:01,497 INFO L168 Benchmark]: Boogie Preprocessor took 29.56 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:01,498 INFO L168 Benchmark]: RCFGBuilder took 561.37 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:01,499 INFO L168 Benchmark]: TraceAbstraction took 5756.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 830.9 MB in the end (delta: 254.1 MB). Peak memory consumption was 254.1 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:01,499 INFO L168 Benchmark]: Witness Printer took 66.10 ms. Allocated memory is still 1.2 GB. Free memory was 830.9 MB in the beginning and 824.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-01 00:56:01,505 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 805.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.85 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 29.56 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 561.37 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5756.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 830.9 MB in the end (delta: 254.1 MB). Peak memory consumption was 254.1 MB. Max. memory is 11.5 GB. * Witness Printer took 66.10 ms. Allocated memory is still 1.2 GB. Free memory was 830.9 MB in the beginning and 824.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 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, 71 locations, 1 error locations. SAFE Result, 5.6s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 3.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 394 SDtfs, 502 SDslu, 1027 SDs, 0 SdLazy, 144 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 15518 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...