./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe020_pso.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/pthread-wmm/safe020_pso.opt_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cf11dc2c0dcdaf487958c9a5ab0d668b271e1541 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:57:37,172 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 00:57:37,175 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 00:57:37,196 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 00:57:37,199 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 00:57:37,200 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 00:57:37,202 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 00:57:37,205 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 00:57:37,207 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 00:57:37,208 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 00:57:37,209 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 00:57:37,210 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 00:57:37,211 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 00:57:37,213 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 00:57:37,214 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 00:57:37,215 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 00:57:37,216 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 00:57:37,218 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 00:57:37,221 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 00:57:37,223 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 00:57:37,224 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 00:57:37,226 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 00:57:37,229 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 00:57:37,230 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 00:57:37,230 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 00:57:37,231 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 00:57:37,233 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 00:57:37,233 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 00:57:37,235 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 00:57:37,236 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 00:57:37,236 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 00:57:37,238 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 00:57:37,238 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 00:57:37,238 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 00:57:37,239 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 00:57:37,241 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 00:57:37,241 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-01 00:57:37,257 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 00:57:37,258 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 00:57:37,259 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 00:57:37,259 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 00:57:37,260 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 00:57:37,260 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 00:57:37,260 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 00:57:37,260 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 00:57:37,260 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 00:57:37,260 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 00:57:37,261 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 00:57:37,261 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 00:57:37,261 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 00:57:37,261 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 00:57:37,261 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 00:57:37,262 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 00:57:37,263 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 00:57:37,263 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 00:57:37,263 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 00:57:37,264 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 00:57:37,264 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 00:57:37,264 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:57:37,264 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 00:57:37,264 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 00:57:37,265 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 00:57:37,266 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 00:57:37,266 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 00:57:37,266 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 00:57:37,266 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 -> cf11dc2c0dcdaf487958c9a5ab0d668b271e1541 [2019-01-01 00:57:37,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 00:57:37,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 00:57:37,321 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 00:57:37,322 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 00:57:37,323 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 00:57:37,324 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe020_pso.opt_true-unreach-call.i [2019-01-01 00:57:37,386 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1c5f1b1/c13ee8505ae44b49a83687d404f3467c/FLAG6de6f6d43 [2019-01-01 00:57:38,000 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 00:57:38,003 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe020_pso.opt_true-unreach-call.i [2019-01-01 00:57:38,018 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1c5f1b1/c13ee8505ae44b49a83687d404f3467c/FLAG6de6f6d43 [2019-01-01 00:57:38,267 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1c5f1b1/c13ee8505ae44b49a83687d404f3467c [2019-01-01 00:57:38,272 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 00:57:38,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 00:57:38,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 00:57:38,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 00:57:38,283 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 00:57:38,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:57:38" (1/1) ... [2019-01-01 00:57:38,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4fbf7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:38, skipping insertion in model container [2019-01-01 00:57:38,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:57:38" (1/1) ... [2019-01-01 00:57:38,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 00:57:38,347 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 00:57:38,824 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:57:38,837 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 00:57:38,985 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:57:39,080 INFO L195 MainTranslator]: Completed translation [2019-01-01 00:57:39,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:39 WrapperNode [2019-01-01 00:57:39,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 00:57:39,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 00:57:39,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 00:57:39,083 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 00:57:39,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:39" (1/1) ... [2019-01-01 00:57:39,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:39" (1/1) ... [2019-01-01 00:57:39,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 00:57:39,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 00:57:39,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 00:57:39,146 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 00:57:39,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:39" (1/1) ... [2019-01-01 00:57:39,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:39" (1/1) ... [2019-01-01 00:57:39,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:39" (1/1) ... [2019-01-01 00:57:39,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:39" (1/1) ... [2019-01-01 00:57:39,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:39" (1/1) ... [2019-01-01 00:57:39,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:39" (1/1) ... [2019-01-01 00:57:39,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:39" (1/1) ... [2019-01-01 00:57:39,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 00:57:39,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 00:57:39,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 00:57:39,176 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 00:57:39,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:39" (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 00:57:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 00:57:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-01 00:57:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 00:57:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 00:57:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-01 00:57:39,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-01 00:57:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-01 00:57:39,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-01 00:57:39,256 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-01 00:57:39,256 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-01 00:57:39,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-01 00:57:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 00:57:39,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 00:57:39,259 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 00:57:39,755 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 00:57:39,756 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 00:57:39,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:57:39 BoogieIcfgContainer [2019-01-01 00:57:39,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 00:57:39,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 00:57:39,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 00:57:39,762 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 00:57:39,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 12:57:38" (1/3) ... [2019-01-01 00:57:39,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544f47f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:57:39, skipping insertion in model container [2019-01-01 00:57:39,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:39" (2/3) ... [2019-01-01 00:57:39,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544f47f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:57:39, skipping insertion in model container [2019-01-01 00:57:39,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:57:39" (3/3) ... [2019-01-01 00:57:39,768 INFO L112 eAbstractionObserver]: Analyzing ICFG safe020_pso.opt_true-unreach-call.i [2019-01-01 00:57:39,804 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,804 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,805 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,805 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,806 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,806 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,806 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,806 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,806 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,806 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,808 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,808 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,808 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,809 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,809 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,809 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,809 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,810 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,810 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,810 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,810 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,811 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,811 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,811 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,811 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,814 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,814 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,814 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,814 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,814 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:39,849 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 00:57:39,849 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 00:57:39,858 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-01 00:57:39,876 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-01 00:57:39,903 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 00:57:39,904 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 00:57:39,904 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 00:57:39,905 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 00:57:39,905 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 00:57:39,905 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 00:57:39,905 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 00:57:39,905 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 00:57:39,905 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 00:57:39,916 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55places, 52 transitions [2019-01-01 00:57:40,066 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2019-01-01 00:57:40,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2019-01-01 00:57:40,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-01-01 00:57:40,091 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:57:40,092 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] [2019-01-01 00:57:40,096 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:57:40,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:57:40,102 INFO L82 PathProgramCache]: Analyzing trace with hash -2034524401, now seen corresponding path program 1 times [2019-01-01 00:57:40,105 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:57:40,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:57:40,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:40,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:57:40,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:57:40,511 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 00:57:40,515 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:57:40,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 00:57:40,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 00:57:40,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 00:57:40,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 00:57:40,536 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2019-01-01 00:57:40,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:57:40,728 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2019-01-01 00:57:40,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 00:57:40,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-01-01 00:57:40,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:57:40,766 INFO L225 Difference]: With dead ends: 2492 [2019-01-01 00:57:40,766 INFO L226 Difference]: Without dead ends: 1127 [2019-01-01 00:57:40,768 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 00:57:40,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2019-01-01 00:57:40,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2019-01-01 00:57:40,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2019-01-01 00:57:40,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2019-01-01 00:57:40,917 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2019-01-01 00:57:40,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:57:40,918 INFO L480 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2019-01-01 00:57:40,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 00:57:40,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2019-01-01 00:57:40,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-01-01 00:57:40,927 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:57:40,927 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 00:57:40,928 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:57:40,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:57:40,928 INFO L82 PathProgramCache]: Analyzing trace with hash -35343599, now seen corresponding path program 1 times [2019-01-01 00:57:40,928 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:57:40,928 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:57:40,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:40,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:57:40,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:57:41,230 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 00:57:41,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:57:41,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 00:57:41,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 00:57:41,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 00:57:41,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:57:41,234 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2019-01-01 00:57:41,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:57:41,515 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2019-01-01 00:57:41,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:57:41,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-01-01 00:57:41,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:57:41,530 INFO L225 Difference]: With dead ends: 1167 [2019-01-01 00:57:41,531 INFO L226 Difference]: Without dead ends: 1043 [2019-01-01 00:57:41,532 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 00:57:41,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2019-01-01 00:57:41,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2019-01-01 00:57:41,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2019-01-01 00:57:41,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2019-01-01 00:57:41,582 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2019-01-01 00:57:41,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:57:41,582 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2019-01-01 00:57:41,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 00:57:41,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2019-01-01 00:57:41,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:57:41,587 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:57:41,587 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 00:57:41,588 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:57:41,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:57:41,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1463535297, now seen corresponding path program 1 times [2019-01-01 00:57:41,589 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:57:41,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:57:41,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:41,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:57:41,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:57:41,885 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 00:57:41,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:57:41,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:57:41,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:57:41,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:57:41,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:57:41,887 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2019-01-01 00:57:42,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:57:42,156 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2019-01-01 00:57:42,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:57:42,161 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-01-01 00:57:42,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:57:42,168 INFO L225 Difference]: With dead ends: 819 [2019-01-01 00:57:42,168 INFO L226 Difference]: Without dead ends: 707 [2019-01-01 00:57:42,169 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 00:57:42,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-01-01 00:57:42,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2019-01-01 00:57:42,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2019-01-01 00:57:42,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2019-01-01 00:57:42,195 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2019-01-01 00:57:42,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:57:42,196 INFO L480 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2019-01-01 00:57:42,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:57:42,197 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2019-01-01 00:57:42,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-01 00:57:42,200 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:57:42,200 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 00:57:42,201 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:57:42,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:57:42,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1549733045, now seen corresponding path program 1 times [2019-01-01 00:57:42,201 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:57:42,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:57:42,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:42,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:57:42,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:57:42,594 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 00:57:42,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:57:42,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-01-01 00:57:42,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-01 00:57:42,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-01 00:57:42,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-01-01 00:57:42,596 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 10 states. [2019-01-01 00:57:43,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:57:43,478 INFO L93 Difference]: Finished difference Result 1107 states and 3290 transitions. [2019-01-01 00:57:43,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-01-01 00:57:43,483 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2019-01-01 00:57:43,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:57:43,489 INFO L225 Difference]: With dead ends: 1107 [2019-01-01 00:57:43,489 INFO L226 Difference]: Without dead ends: 591 [2019-01-01 00:57:43,489 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2019-01-01 00:57:43,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2019-01-01 00:57:43,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2019-01-01 00:57:43,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-01-01 00:57:43,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1754 transitions. [2019-01-01 00:57:43,512 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1754 transitions. Word has length 32 [2019-01-01 00:57:43,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:57:43,512 INFO L480 AbstractCegarLoop]: Abstraction has 591 states and 1754 transitions. [2019-01-01 00:57:43,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-01 00:57:43,513 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1754 transitions. [2019-01-01 00:57:43,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-01 00:57:43,517 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:57:43,517 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 00:57:43,517 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:57:43,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:57:43,518 INFO L82 PathProgramCache]: Analyzing trace with hash -813130677, now seen corresponding path program 2 times [2019-01-01 00:57:43,518 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:57:43,519 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:57:43,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:43,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:57:43,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:57:43,912 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 00:57:43,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:57:43,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-01-01 00:57:43,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-01 00:57:43,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-01 00:57:43,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-01-01 00:57:43,914 INFO L87 Difference]: Start difference. First operand 591 states and 1754 transitions. Second operand 10 states. [2019-01-01 00:57:44,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:57:44,228 INFO L93 Difference]: Finished difference Result 991 states and 2978 transitions. [2019-01-01 00:57:44,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-01-01 00:57:44,229 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2019-01-01 00:57:44,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:57:44,236 INFO L225 Difference]: With dead ends: 991 [2019-01-01 00:57:44,236 INFO L226 Difference]: Without dead ends: 571 [2019-01-01 00:57:44,237 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2019-01-01 00:57:44,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2019-01-01 00:57:44,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2019-01-01 00:57:44,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-01-01 00:57:44,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1714 transitions. [2019-01-01 00:57:44,257 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1714 transitions. Word has length 32 [2019-01-01 00:57:44,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:57:44,259 INFO L480 AbstractCegarLoop]: Abstraction has 571 states and 1714 transitions. [2019-01-01 00:57:44,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-01 00:57:44,259 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1714 transitions. [2019-01-01 00:57:44,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-01 00:57:44,261 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:57:44,261 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 00:57:44,262 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:57:44,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:57:44,262 INFO L82 PathProgramCache]: Analyzing trace with hash -126223495, now seen corresponding path program 3 times [2019-01-01 00:57:44,267 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:57:44,267 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:57:44,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:44,270 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 00:57:44,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:57:44,514 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 00:57:44,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:57:44,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-01-01 00:57:44,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-01-01 00:57:44,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-01-01 00:57:44,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-01-01 00:57:44,516 INFO L87 Difference]: Start difference. First operand 571 states and 1714 transitions. Second operand 11 states. [2019-01-01 00:57:44,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:57:44,727 INFO L93 Difference]: Finished difference Result 443 states and 1298 transitions. [2019-01-01 00:57:44,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-01-01 00:57:44,727 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2019-01-01 00:57:44,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:57:44,728 INFO L225 Difference]: With dead ends: 443 [2019-01-01 00:57:44,728 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 00:57:44,729 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2019-01-01 00:57:44,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 00:57:44,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 00:57:44,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 00:57:44,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 00:57:44,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-01-01 00:57:44,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:57:44,730 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 00:57:44,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-01-01 00:57:44,730 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 00:57:44,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 00:57:44,733 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-01 00:57:44,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 12:57:44 BasicIcfg [2019-01-01 00:57:44,735 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 00:57:44,736 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 00:57:44,736 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 00:57:44,736 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 00:57:44,738 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:57:39" (3/4) ... [2019-01-01 00:57:44,741 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 00:57:44,748 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-01 00:57:44,748 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-01 00:57:44,748 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-01 00:57:44,753 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-01 00:57:44,753 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 00:57:44,806 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 00:57:44,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 00:57:44,807 INFO L168 Benchmark]: Toolchain (without parser) took 6534.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 193.5 MB). Free memory was 948.7 MB in the beginning and 1.2 GB in the end (delta: -214.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:57:44,809 INFO L168 Benchmark]: CDTParser took 0.17 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 00:57:44,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 806.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -111.3 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. [2019-01-01 00:57:44,810 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:57:44,812 INFO L168 Benchmark]: Boogie Preprocessor took 29.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-01-01 00:57:44,812 INFO L168 Benchmark]: RCFGBuilder took 581.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-01-01 00:57:44,813 INFO L168 Benchmark]: TraceAbstraction took 4978.05 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 92.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -140.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:57:44,814 INFO L168 Benchmark]: Witness Printer took 70.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-01-01 00:57:44,819 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 806.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -111.3 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 581.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4978.05 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 92.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -140.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 70.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 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, 70 locations, 1 error locations. SAFE Result, 4.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 370 SDtfs, 483 SDslu, 1676 SDs, 0 SdLazy, 317 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred 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, 1.6s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 21795 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...