./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe037_pso.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/safe037_pso.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 6b0053bdf686dfd71852eb7a4da7b05d3938e7e9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:58:59,124 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 00:58:59,127 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 00:58:59,140 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 00:58:59,140 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 00:58:59,141 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 00:58:59,143 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 00:58:59,146 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 00:58:59,148 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 00:58:59,149 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 00:58:59,150 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 00:58:59,151 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 00:58:59,152 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 00:58:59,153 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 00:58:59,154 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 00:58:59,155 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 00:58:59,157 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 00:58:59,159 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 00:58:59,161 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 00:58:59,163 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 00:58:59,165 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 00:58:59,166 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 00:58:59,169 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 00:58:59,170 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 00:58:59,170 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 00:58:59,171 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 00:58:59,172 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 00:58:59,173 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 00:58:59,174 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 00:58:59,175 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 00:58:59,176 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 00:58:59,176 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 00:58:59,176 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 00:58:59,177 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 00:58:59,178 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 00:58:59,179 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 00:58:59,180 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-01 00:58:59,196 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 00:58:59,196 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 00:58:59,198 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 00:58:59,198 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 00:58:59,198 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 00:58:59,199 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 00:58:59,199 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 00:58:59,199 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 00:58:59,199 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 00:58:59,199 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 00:58:59,199 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 00:58:59,200 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 00:58:59,201 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 00:58:59,201 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 00:58:59,201 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 00:58:59,201 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 00:58:59,201 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 00:58:59,202 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 00:58:59,202 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 00:58:59,202 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 00:58:59,202 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 00:58:59,202 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:58:59,203 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 00:58:59,203 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 00:58:59,203 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 00:58:59,203 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 00:58:59,203 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 00:58:59,206 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 00:58:59,206 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 -> 6b0053bdf686dfd71852eb7a4da7b05d3938e7e9 [2019-01-01 00:58:59,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 00:58:59,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 00:58:59,273 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 00:58:59,275 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 00:58:59,276 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 00:58:59,277 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe037_pso.oepc_true-unreach-call.i [2019-01-01 00:58:59,345 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f8548efe/ef914acaac5347bfaafd319b22a5035a/FLAG0c8a45b0f [2019-01-01 00:58:59,893 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 00:58:59,894 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe037_pso.oepc_true-unreach-call.i [2019-01-01 00:58:59,908 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f8548efe/ef914acaac5347bfaafd319b22a5035a/FLAG0c8a45b0f [2019-01-01 00:59:00,151 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f8548efe/ef914acaac5347bfaafd319b22a5035a [2019-01-01 00:59:00,155 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 00:59:00,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 00:59:00,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 00:59:00,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 00:59:00,164 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 00:59:00,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:59:00" (1/1) ... [2019-01-01 00:59:00,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a64539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:00, skipping insertion in model container [2019-01-01 00:59:00,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:59:00" (1/1) ... [2019-01-01 00:59:00,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 00:59:00,227 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 00:59:00,755 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:59:00,778 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 00:59:00,942 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:59:01,032 INFO L195 MainTranslator]: Completed translation [2019-01-01 00:59:01,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:01 WrapperNode [2019-01-01 00:59:01,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 00:59:01,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 00:59:01,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 00:59:01,034 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 00:59:01,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:01" (1/1) ... [2019-01-01 00:59:01,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:01" (1/1) ... [2019-01-01 00:59:01,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 00:59:01,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 00:59:01,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 00:59:01,093 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 00:59:01,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:01" (1/1) ... [2019-01-01 00:59:01,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:01" (1/1) ... [2019-01-01 00:59:01,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:01" (1/1) ... [2019-01-01 00:59:01,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:01" (1/1) ... [2019-01-01 00:59:01,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:01" (1/1) ... [2019-01-01 00:59:01,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:01" (1/1) ... [2019-01-01 00:59:01,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:01" (1/1) ... [2019-01-01 00:59:01,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 00:59:01,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 00:59:01,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 00:59:01,124 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 00:59:01,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:01" (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 00:59:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 00:59:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-01 00:59:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 00:59:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 00:59:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-01 00:59:01,197 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-01 00:59:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-01 00:59:01,197 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-01 00:59:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-01 00:59:01,198 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-01 00:59:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-01 00:59:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 00:59:01,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 00:59:01,200 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 00:59:01,683 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 00:59:01,683 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 00:59:01,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:59:01 BoogieIcfgContainer [2019-01-01 00:59:01,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 00:59:01,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 00:59:01,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 00:59:01,689 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 00:59:01,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 12:59:00" (1/3) ... [2019-01-01 00:59:01,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a551f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:59:01, skipping insertion in model container [2019-01-01 00:59:01,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:59:01" (2/3) ... [2019-01-01 00:59:01,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a551f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:59:01, skipping insertion in model container [2019-01-01 00:59:01,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:59:01" (3/3) ... [2019-01-01 00:59:01,695 INFO L112 eAbstractionObserver]: Analyzing ICFG safe037_pso.oepc_true-unreach-call.i [2019-01-01 00:59:01,734 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,734 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,734 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,734 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,735 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,735 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,735 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,735 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,735 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,736 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,736 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,736 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,736 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,737 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,737 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,737 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,737 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,737 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,738 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,738 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,738 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,738 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,739 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,739 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,739 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,739 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,739 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,739 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,740 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,740 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:59:01,772 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 00:59:01,772 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 00:59:01,782 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-01 00:59:01,802 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-01 00:59:01,832 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 00:59:01,832 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 00:59:01,833 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 00:59:01,833 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 00:59:01,833 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 00:59:01,833 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 00:59:01,833 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 00:59:01,833 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 00:59:01,833 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 00:59:01,844 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57places, 54 transitions [2019-01-01 00:59:01,990 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2386 states. [2019-01-01 00:59:01,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states. [2019-01-01 00:59:02,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:59:02,025 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:59:02,026 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 00:59:02,030 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:59:02,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:59:02,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1034238462, now seen corresponding path program 1 times [2019-01-01 00:59:02,041 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:59:02,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:59:02,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:02,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:59:02,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:59:02,524 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 00:59:02,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:59:02,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 00:59:02,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 00:59:02,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 00:59:02,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 00:59:02,548 INFO L87 Difference]: Start difference. First operand 2386 states. Second operand 4 states. [2019-01-01 00:59:02,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:59:02,851 INFO L93 Difference]: Finished difference Result 2494 states and 8070 transitions. [2019-01-01 00:59:02,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 00:59:02,853 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-01-01 00:59:02,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:59:02,890 INFO L225 Difference]: With dead ends: 2494 [2019-01-01 00:59:02,890 INFO L226 Difference]: Without dead ends: 1129 [2019-01-01 00:59:02,893 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 00:59:02,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2019-01-01 00:59:03,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2019-01-01 00:59:03,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2019-01-01 00:59:03,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 3559 transitions. [2019-01-01 00:59:03,059 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 3559 transitions. Word has length 31 [2019-01-01 00:59:03,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:59:03,061 INFO L480 AbstractCegarLoop]: Abstraction has 1129 states and 3559 transitions. [2019-01-01 00:59:03,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 00:59:03,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 3559 transitions. [2019-01-01 00:59:03,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-01 00:59:03,066 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:59:03,066 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 00:59:03,066 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:59:03,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:59:03,067 INFO L82 PathProgramCache]: Analyzing trace with hash -358958448, now seen corresponding path program 1 times [2019-01-01 00:59:03,067 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:59:03,067 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:59:03,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:03,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:59:03,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:59:03,303 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 00:59:03,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:59:03,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 00:59:03,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 00:59:03,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 00:59:03,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:59:03,307 INFO L87 Difference]: Start difference. First operand 1129 states and 3559 transitions. Second operand 5 states. [2019-01-01 00:59:03,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:59:03,794 INFO L93 Difference]: Finished difference Result 1169 states and 3553 transitions. [2019-01-01 00:59:03,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:59:03,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-01-01 00:59:03,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:59:03,805 INFO L225 Difference]: With dead ends: 1169 [2019-01-01 00:59:03,805 INFO L226 Difference]: Without dead ends: 1045 [2019-01-01 00:59:03,806 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 00:59:03,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-01-01 00:59:03,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2019-01-01 00:59:03,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2019-01-01 00:59:03,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3244 transitions. [2019-01-01 00:59:03,850 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3244 transitions. Word has length 32 [2019-01-01 00:59:03,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:59:03,850 INFO L480 AbstractCegarLoop]: Abstraction has 1045 states and 3244 transitions. [2019-01-01 00:59:03,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 00:59:03,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3244 transitions. [2019-01-01 00:59:03,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:59:03,854 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:59:03,854 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 00:59:03,854 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:59:03,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:59:03,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1331314864, now seen corresponding path program 1 times [2019-01-01 00:59:03,855 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:59:03,855 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:59:03,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:03,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:59:03,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:59:04,267 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 00:59:04,267 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:59:04,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:59:04,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:59:04,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:59:04,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:59:04,269 INFO L87 Difference]: Start difference. First operand 1045 states and 3244 transitions. Second operand 6 states. [2019-01-01 00:59:04,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:59:04,470 INFO L93 Difference]: Finished difference Result 821 states and 2380 transitions. [2019-01-01 00:59:04,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:59:04,471 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-01-01 00:59:04,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:59:04,477 INFO L225 Difference]: With dead ends: 821 [2019-01-01 00:59:04,477 INFO L226 Difference]: Without dead ends: 709 [2019-01-01 00:59:04,478 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-01-01 00:59:04,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2019-01-01 00:59:04,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2019-01-01 00:59:04,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-01-01 00:59:04,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 2068 transitions. [2019-01-01 00:59:04,504 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 2068 transitions. Word has length 33 [2019-01-01 00:59:04,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:59:04,505 INFO L480 AbstractCegarLoop]: Abstraction has 709 states and 2068 transitions. [2019-01-01 00:59:04,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:59:04,505 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 2068 transitions. [2019-01-01 00:59:04,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:59:04,508 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:59:04,508 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:59:04,508 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:59:04,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:59:04,509 INFO L82 PathProgramCache]: Analyzing trace with hash 2128311482, now seen corresponding path program 1 times [2019-01-01 00:59:04,509 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:59:04,509 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:59:04,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:04,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:59:04,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:59:04,884 WARN L181 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-01-01 00:59:05,132 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 00:59:05,133 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:59:05,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 00:59:05,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 00:59:05,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 00:59:05,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-01-01 00:59:05,134 INFO L87 Difference]: Start difference. First operand 709 states and 2068 transitions. Second operand 8 states. [2019-01-01 00:59:05,345 WARN L181 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2019-01-01 00:59:05,797 WARN L181 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2019-01-01 00:59:06,345 WARN L181 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2019-01-01 00:59:06,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:59:06,401 INFO L93 Difference]: Finished difference Result 1109 states and 3292 transitions. [2019-01-01 00:59:06,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-01 00:59:06,406 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-01-01 00:59:06,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:59:06,412 INFO L225 Difference]: With dead ends: 1109 [2019-01-01 00:59:06,412 INFO L226 Difference]: Without dead ends: 593 [2019-01-01 00:59:06,413 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-01-01 00:59:06,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-01-01 00:59:06,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2019-01-01 00:59:06,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2019-01-01 00:59:06,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1756 transitions. [2019-01-01 00:59:06,439 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1756 transitions. Word has length 34 [2019-01-01 00:59:06,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:59:06,439 INFO L480 AbstractCegarLoop]: Abstraction has 593 states and 1756 transitions. [2019-01-01 00:59:06,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 00:59:06,440 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1756 transitions. [2019-01-01 00:59:06,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:59:06,443 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:59:06,443 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:59:06,443 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:59:06,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:59:06,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1304882406, now seen corresponding path program 2 times [2019-01-01 00:59:06,444 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:59:06,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:59:06,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:06,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:59:06,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:59:06,709 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 00:59:06,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:59:06,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 00:59:06,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 00:59:06,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 00:59:06,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-01-01 00:59:06,711 INFO L87 Difference]: Start difference. First operand 593 states and 1756 transitions. Second operand 8 states. [2019-01-01 00:59:07,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:59:07,070 INFO L93 Difference]: Finished difference Result 977 states and 2940 transitions. [2019-01-01 00:59:07,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-01 00:59:07,071 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-01-01 00:59:07,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:59:07,076 INFO L225 Difference]: With dead ends: 977 [2019-01-01 00:59:07,076 INFO L226 Difference]: Without dead ends: 557 [2019-01-01 00:59:07,076 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-01-01 00:59:07,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-01-01 00:59:07,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2019-01-01 00:59:07,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2019-01-01 00:59:07,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1672 transitions. [2019-01-01 00:59:07,092 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1672 transitions. Word has length 34 [2019-01-01 00:59:07,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:59:07,093 INFO L480 AbstractCegarLoop]: Abstraction has 557 states and 1672 transitions. [2019-01-01 00:59:07,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 00:59:07,093 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1672 transitions. [2019-01-01 00:59:07,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-01 00:59:07,095 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:59:07,095 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:59:07,095 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:59:07,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:59:07,096 INFO L82 PathProgramCache]: Analyzing trace with hash -427268092, now seen corresponding path program 3 times [2019-01-01 00:59:07,096 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:59:07,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:59:07,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:07,099 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 00:59:07,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:59:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:59:07,260 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 00:59:07,260 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:59:07,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 00:59:07,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 00:59:07,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 00:59:07,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-01-01 00:59:07,262 INFO L87 Difference]: Start difference. First operand 557 states and 1672 transitions. Second operand 8 states. [2019-01-01 00:59:07,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:59:07,525 INFO L93 Difference]: Finished difference Result 429 states and 1256 transitions. [2019-01-01 00:59:07,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-01 00:59:07,525 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-01-01 00:59:07,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:59:07,526 INFO L225 Difference]: With dead ends: 429 [2019-01-01 00:59:07,526 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 00:59:07,526 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-01-01 00:59:07,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 00:59:07,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 00:59:07,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 00:59:07,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 00:59:07,527 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-01-01 00:59:07,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:59:07,528 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 00:59:07,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 00:59:07,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 00:59:07,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 00:59:07,531 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-01 00:59:07,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 12:59:07 BasicIcfg [2019-01-01 00:59:07,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 00:59:07,534 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 00:59:07,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 00:59:07,534 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 00:59:07,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:59:01" (3/4) ... [2019-01-01 00:59:07,539 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 00:59:07,546 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-01 00:59:07,546 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-01 00:59:07,546 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-01 00:59:07,551 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-01 00:59:07,552 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 00:59:07,601 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 00:59:07,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 00:59:07,602 INFO L168 Benchmark]: Toolchain (without parser) took 7445.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.5 MB). Free memory was 951.4 MB in the beginning and 746.2 MB in the end (delta: 205.1 MB). Peak memory consumption was 280.6 MB. Max. memory is 11.5 GB. [2019-01-01 00:59:07,603 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 00:59:07,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 874.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.5 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -96.8 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. [2019-01-01 00:59:07,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:59:07,605 INFO L168 Benchmark]: Boogie Preprocessor took 31.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:59:07,607 INFO L168 Benchmark]: RCFGBuilder took 560.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-01-01 00:59:07,607 INFO L168 Benchmark]: TraceAbstraction took 5848.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 753.3 MB in the end (delta: 269.1 MB). Peak memory consumption was 269.1 MB. Max. memory is 11.5 GB. [2019-01-01 00:59:07,608 INFO L168 Benchmark]: Witness Printer took 67.43 ms. Allocated memory is still 1.1 GB. Free memory was 753.3 MB in the beginning and 746.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-01-01 00:59:07,614 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 874.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.5 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -96.8 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 560.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5848.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 753.3 MB in the end (delta: 269.1 MB). Peak memory consumption was 269.1 MB. Max. memory is 11.5 GB. * Witness Printer took 67.43 ms. Allocated memory is still 1.1 GB. Free memory was 753.3 MB in the beginning and 746.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 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, 72 locations, 1 error locations. SAFE Result, 5.7s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 370 SDtfs, 530 SDslu, 1058 SDs, 0 SdLazy, 111 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2386occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 15438 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...