./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe030_tso.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/pthread-wmm/safe030_tso.opt_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c8fce9252589b7d967772b8af9653738ad549f7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 20:43:42,063 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:43:42,065 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:43:42,077 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:43:42,078 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:43:42,079 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:43:42,080 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:43:42,082 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:43:42,084 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:43:42,087 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:43:42,088 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:43:42,088 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:43:42,089 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:43:42,093 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:43:42,096 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:43:42,098 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:43:42,099 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:43:42,101 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:43:42,104 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:43:42,105 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:43:42,107 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:43:42,108 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:43:42,111 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:43:42,112 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:43:42,112 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:43:42,113 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:43:42,115 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:43:42,116 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:43:42,116 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:43:42,118 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:43:42,118 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:43:42,119 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:43:42,119 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:43:42,119 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:43:42,121 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:43:42,122 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:43:42,122 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:43:42,138 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:43:42,138 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:43:42,140 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:43:42,140 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:43:42,140 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:43:42,141 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:43:42,141 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:43:42,141 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:43:42,141 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:43:42,141 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:43:42,142 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:43:42,143 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:43:42,143 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:43:42,143 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:43:42,143 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:43:42,143 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:43:42,144 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:43:42,145 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:43:42,145 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:43:42,145 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:43:42,145 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:43:42,145 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:43:42,145 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:43:42,146 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:43:42,147 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:43:42,147 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:43:42,147 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:43:42,147 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:43:42,147 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:43:42,148 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:43:42,148 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 -> 0c8fce9252589b7d967772b8af9653738ad549f7 [2018-11-28 20:43:42,194 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:43:42,211 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:43:42,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:43:42,216 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:43:42,217 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:43:42,217 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe030_tso.opt_true-unreach-call.i [2018-11-28 20:43:42,284 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99a41d33b/7e590cc879d848c9b540c9cc24c24056/FLAG350897329 [2018-11-28 20:43:42,843 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:43:42,844 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe030_tso.opt_true-unreach-call.i [2018-11-28 20:43:42,867 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99a41d33b/7e590cc879d848c9b540c9cc24c24056/FLAG350897329 [2018-11-28 20:43:43,088 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99a41d33b/7e590cc879d848c9b540c9cc24c24056 [2018-11-28 20:43:43,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:43:43,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:43:43,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:43,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:43:43,103 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:43:43,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:43" (1/1) ... [2018-11-28 20:43:43,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@276e395e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:43, skipping insertion in model container [2018-11-28 20:43:43,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:43" (1/1) ... [2018-11-28 20:43:43,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:43:43,168 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:43:43,580 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:43,601 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:43:43,688 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:43,868 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:43:43,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:43 WrapperNode [2018-11-28 20:43:43,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:43,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:43,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:43:43,870 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:43:43,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:43" (1/1) ... [2018-11-28 20:43:43,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:43" (1/1) ... [2018-11-28 20:43:43,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:43,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:43:43,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:43:43,927 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:43:43,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:43" (1/1) ... [2018-11-28 20:43:43,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:43" (1/1) ... [2018-11-28 20:43:43,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:43" (1/1) ... [2018-11-28 20:43:43,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:43" (1/1) ... [2018-11-28 20:43:43,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:43" (1/1) ... [2018-11-28 20:43:43,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:43" (1/1) ... [2018-11-28 20:43:43,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:43" (1/1) ... [2018-11-28 20:43:43,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:43:43,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:43:43,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:43:43,975 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:43:43,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:43:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:43:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:43:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:43:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:43:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:43:44,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:43:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:43:44,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:43:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:43:44,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:43:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:43:44,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:43:44,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:43:44,036 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-28 20:43:44,495 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:43:44,495 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:43:44,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:44 BoogieIcfgContainer [2018-11-28 20:43:44,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:43:44,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:43:44,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:43:44,504 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:43:44,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:43:43" (1/3) ... [2018-11-28 20:43:44,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ad5ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:44, skipping insertion in model container [2018-11-28 20:43:44,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:43" (2/3) ... [2018-11-28 20:43:44,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ad5ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:44, skipping insertion in model container [2018-11-28 20:43:44,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:44" (3/3) ... [2018-11-28 20:43:44,509 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt_true-unreach-call.i [2018-11-28 20:43:44,562 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,563 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,563 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,563 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,565 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,566 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,566 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,566 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,566 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,566 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,567 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,567 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,567 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,567 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,568 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,568 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,568 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,568 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,568 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,569 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,569 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,569 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,569 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,570 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:44,592 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:43:44,592 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:43:44,600 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:43:44,618 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:43:44,651 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:43:44,652 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:43:44,652 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:43:44,652 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:43:44,653 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:43:44,653 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:43:44,653 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:43:44,654 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:43:44,654 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:43:44,667 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54places, 51 transitions [2018-11-28 20:43:44,801 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2383 states. [2018-11-28 20:43:44,804 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states. [2018-11-28 20:43:44,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 20:43:44,835 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:44,836 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] [2018-11-28 20:43:44,839 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:44,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:44,848 INFO L82 PathProgramCache]: Analyzing trace with hash 244532871, now seen corresponding path program 1 times [2018-11-28 20:43:44,850 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:44,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:44,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:44,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:44,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:45,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:45,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:43:45,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:43:45,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:43:45,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:43:45,235 INFO L87 Difference]: Start difference. First operand 2383 states. Second operand 4 states. [2018-11-28 20:43:45,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:45,419 INFO L93 Difference]: Finished difference Result 2491 states and 8067 transitions. [2018-11-28 20:43:45,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:43:45,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-11-28 20:43:45,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:45,471 INFO L225 Difference]: With dead ends: 2491 [2018-11-28 20:43:45,472 INFO L226 Difference]: Without dead ends: 1126 [2018-11-28 20:43:45,474 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 [2018-11-28 20:43:45,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2018-11-28 20:43:45,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2018-11-28 20:43:45,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2018-11-28 20:43:45,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 3556 transitions. [2018-11-28 20:43:45,632 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 3556 transitions. Word has length 28 [2018-11-28 20:43:45,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:45,633 INFO L480 AbstractCegarLoop]: Abstraction has 1126 states and 3556 transitions. [2018-11-28 20:43:45,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:43:45,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 3556 transitions. [2018-11-28 20:43:45,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-28 20:43:45,641 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:45,642 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:43:45,642 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:45,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:45,643 INFO L82 PathProgramCache]: Analyzing trace with hash 968273041, now seen corresponding path program 1 times [2018-11-28 20:43:45,643 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:45,643 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:45,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:45,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:45,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:45,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:45,963 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:45,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:43:45,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:43:45,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:43:45,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:43:45,969 INFO L87 Difference]: Start difference. First operand 1126 states and 3556 transitions. Second operand 5 states. [2018-11-28 20:43:46,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:46,425 INFO L93 Difference]: Finished difference Result 1166 states and 3550 transitions. [2018-11-28 20:43:46,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:43:46,426 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-11-28 20:43:46,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:46,435 INFO L225 Difference]: With dead ends: 1166 [2018-11-28 20:43:46,435 INFO L226 Difference]: Without dead ends: 1042 [2018-11-28 20:43:46,436 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:46,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2018-11-28 20:43:46,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2018-11-28 20:43:46,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2018-11-28 20:43:46,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 3241 transitions. [2018-11-28 20:43:46,477 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 3241 transitions. Word has length 29 [2018-11-28 20:43:46,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:46,477 INFO L480 AbstractCegarLoop]: Abstraction has 1042 states and 3241 transitions. [2018-11-28 20:43:46,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:43:46,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 3241 transitions. [2018-11-28 20:43:46,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 20:43:46,480 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:46,480 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] [2018-11-28 20:43:46,481 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:46,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:46,481 INFO L82 PathProgramCache]: Analyzing trace with hash -747764909, now seen corresponding path program 1 times [2018-11-28 20:43:46,481 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:46,482 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:46,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:46,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:46,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:46,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:46,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:46,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:43:46,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:43:46,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:43:46,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:43:46,625 INFO L87 Difference]: Start difference. First operand 1042 states and 3241 transitions. Second operand 6 states. [2018-11-28 20:43:46,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:46,858 INFO L93 Difference]: Finished difference Result 818 states and 2377 transitions. [2018-11-28 20:43:46,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:46,859 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-11-28 20:43:46,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:46,865 INFO L225 Difference]: With dead ends: 818 [2018-11-28 20:43:46,865 INFO L226 Difference]: Without dead ends: 706 [2018-11-28 20:43:46,865 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-28 20:43:46,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2018-11-28 20:43:46,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2018-11-28 20:43:46,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2018-11-28 20:43:46,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2065 transitions. [2018-11-28 20:43:46,890 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2065 transitions. Word has length 30 [2018-11-28 20:43:46,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:46,891 INFO L480 AbstractCegarLoop]: Abstraction has 706 states and 2065 transitions. [2018-11-28 20:43:46,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:43:46,891 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2065 transitions. [2018-11-28 20:43:46,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:43:46,893 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:46,893 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] [2018-11-28 20:43:46,894 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:46,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:46,894 INFO L82 PathProgramCache]: Analyzing trace with hash 832052697, now seen corresponding path program 1 times [2018-11-28 20:43:46,894 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:46,894 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:46,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:46,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:46,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:47,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:47,078 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:47,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:47,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:47,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:47,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:47,079 INFO L87 Difference]: Start difference. First operand 706 states and 2065 transitions. Second operand 7 states. [2018-11-28 20:43:47,633 WARN L180 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2018-11-28 20:43:47,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:47,814 INFO L93 Difference]: Finished difference Result 1170 states and 3449 transitions. [2018-11-28 20:43:47,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:43:47,817 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-11-28 20:43:47,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:47,823 INFO L225 Difference]: With dead ends: 1170 [2018-11-28 20:43:47,823 INFO L226 Difference]: Without dead ends: 670 [2018-11-28 20:43:47,824 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:43:47,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2018-11-28 20:43:47,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2018-11-28 20:43:47,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2018-11-28 20:43:47,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1961 transitions. [2018-11-28 20:43:47,848 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1961 transitions. Word has length 31 [2018-11-28 20:43:47,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:47,848 INFO L480 AbstractCegarLoop]: Abstraction has 670 states and 1961 transitions. [2018-11-28 20:43:47,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:47,848 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1961 transitions. [2018-11-28 20:43:47,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:43:47,850 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:47,850 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] [2018-11-28 20:43:47,852 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:47,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:47,853 INFO L82 PathProgramCache]: Analyzing trace with hash 735486425, now seen corresponding path program 2 times [2018-11-28 20:43:47,853 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:47,853 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:47,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:47,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:47,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:48,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:48,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:48,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:43:48,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:43:48,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:43:48,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:43:48,101 INFO L87 Difference]: Start difference. First operand 670 states and 1961 transitions. Second operand 6 states. [2018-11-28 20:43:48,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:48,447 INFO L93 Difference]: Finished difference Result 1054 states and 3145 transitions. [2018-11-28 20:43:48,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:43:48,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-28 20:43:48,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:48,454 INFO L225 Difference]: With dead ends: 1054 [2018-11-28 20:43:48,454 INFO L226 Difference]: Without dead ends: 650 [2018-11-28 20:43:48,455 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-28 20:43:48,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2018-11-28 20:43:48,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2018-11-28 20:43:48,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2018-11-28 20:43:48,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 1909 transitions. [2018-11-28 20:43:48,477 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 1909 transitions. Word has length 31 [2018-11-28 20:43:48,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:48,478 INFO L480 AbstractCegarLoop]: Abstraction has 650 states and 1909 transitions. [2018-11-28 20:43:48,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:43:48,478 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 1909 transitions. [2018-11-28 20:43:48,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:43:48,481 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:48,481 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] [2018-11-28 20:43:48,482 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:48,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:48,482 INFO L82 PathProgramCache]: Analyzing trace with hash 2049017953, now seen corresponding path program 3 times [2018-11-28 20:43:48,482 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:48,483 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:48,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:48,491 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:43:48,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:48,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:43:48,610 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:48,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:43:48,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:43:48,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:43:48,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:43:48,611 INFO L87 Difference]: Start difference. First operand 650 states and 1909 transitions. Second operand 6 states. [2018-11-28 20:43:48,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:48,704 INFO L93 Difference]: Finished difference Result 522 states and 1493 transitions. [2018-11-28 20:43:48,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:43:48,704 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-28 20:43:48,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:48,705 INFO L225 Difference]: With dead ends: 522 [2018-11-28 20:43:48,705 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:43:48,706 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-28 20:43:48,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:43:48,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:43:48,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:43:48,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:43:48,709 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-28 20:43:48,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:48,709 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:43:48,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:43:48,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:43:48,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:43:48,714 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:43:48,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:43:48 BasicIcfg [2018-11-28 20:43:48,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:43:48,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:43:48,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:43:48,718 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:43:48,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:44" (3/4) ... [2018-11-28 20:43:48,724 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:43:48,732 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:43:48,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:43:48,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:43:48,739 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 20:43:48,739 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:43:48,806 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:43:48,806 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:43:48,809 INFO L168 Benchmark]: Toolchain (without parser) took 5716.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 947.3 MB in the beginning and 872.0 MB in the end (delta: 75.3 MB). Peak memory consumption was 216.8 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:48,811 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-11-28 20:43:48,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -174.3 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:48,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:48,812 INFO L168 Benchmark]: Boogie Preprocessor took 47.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:48,813 INFO L168 Benchmark]: RCFGBuilder took 520.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:48,819 INFO L168 Benchmark]: TraceAbstraction took 4220.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 878.8 MB in the end (delta: 218.0 MB). Peak memory consumption was 218.0 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:48,822 INFO L168 Benchmark]: Witness Printer took 88.55 ms. Allocated memory is still 1.2 GB. Free memory was 878.8 MB in the beginning and 872.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:48,826 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 774.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -174.3 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 520.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4220.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 878.8 MB in the end (delta: 218.0 MB). Peak memory consumption was 218.0 MB. Max. memory is 11.5 GB. * Witness Printer took 88.55 ms. Allocated memory is still 1.2 GB. Free memory was 878.8 MB in the beginning and 872.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 69 locations, 1 error locations. SAFE Result, 4.0s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 350 SDtfs, 382 SDslu, 884 SDs, 0 SdLazy, 94 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2383occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 11526 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...