./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe023_tso.oepc_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/safe023_tso.oepc_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39858ead0d6e11ab9fc86f5281acba65fdb7b589 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:43:25,068 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:43:25,070 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:43:25,082 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:43:25,083 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:43:25,084 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:43:25,085 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:43:25,087 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:43:25,089 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:43:25,090 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:43:25,091 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:43:25,091 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:43:25,092 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:43:25,094 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:43:25,095 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:43:25,096 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:43:25,097 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:43:25,099 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:43:25,102 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:43:25,103 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:43:25,104 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:43:25,106 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:43:25,109 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:43:25,109 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:43:25,109 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:43:25,110 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:43:25,112 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:43:25,113 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:43:25,114 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:43:25,115 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:43:25,115 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:43:25,116 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:43:25,116 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:43:25,116 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:43:25,117 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:43:25,118 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:43:25,119 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:43:25,135 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:43:25,135 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:43:25,136 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:43:25,136 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:43:25,137 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:43:25,137 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:43:25,137 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:43:25,138 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:43:25,139 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:43:25,139 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:43:25,139 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:43:25,139 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:43:25,139 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:43:25,139 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:43:25,140 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:43:25,140 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:43:25,140 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:43:25,140 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:43:25,140 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:43:25,140 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:43:25,142 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:43:25,142 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:43:25,142 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:43:25,142 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:43:25,143 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:43:25,143 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:43:25,143 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:43:25,143 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:43:25,143 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:43:25,144 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:43:25,145 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39858ead0d6e11ab9fc86f5281acba65fdb7b589 [2018-11-28 20:43:25,182 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:43:25,195 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:43:25,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:43:25,201 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:43:25,201 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:43:25,202 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe023_tso.oepc_true-unreach-call.i [2018-11-28 20:43:25,265 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc1d6d742/2f7fbc59018141d5b20af8059a2784bd/FLAG337d35eef [2018-11-28 20:43:25,836 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:43:25,839 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe023_tso.oepc_true-unreach-call.i [2018-11-28 20:43:25,858 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc1d6d742/2f7fbc59018141d5b20af8059a2784bd/FLAG337d35eef [2018-11-28 20:43:26,083 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc1d6d742/2f7fbc59018141d5b20af8059a2784bd [2018-11-28 20:43:26,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:43:26,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:43:26,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:26,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:43:26,095 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:43:26,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:26" (1/1) ... [2018-11-28 20:43:26,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3179c65d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:26, skipping insertion in model container [2018-11-28 20:43:26,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:26" (1/1) ... [2018-11-28 20:43:26,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:43:26,164 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:43:26,579 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:26,597 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:43:26,668 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:26,868 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:43:26,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:26 WrapperNode [2018-11-28 20:43:26,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:26,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:26,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:43:26,870 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:43:26,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:26" (1/1) ... [2018-11-28 20:43:26,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:26" (1/1) ... [2018-11-28 20:43:26,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:26,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:43:26,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:43:26,922 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:43:26,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:26" (1/1) ... [2018-11-28 20:43:26,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:26" (1/1) ... [2018-11-28 20:43:26,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:26" (1/1) ... [2018-11-28 20:43:26,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:26" (1/1) ... [2018-11-28 20:43:26,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:26" (1/1) ... [2018-11-28 20:43:26,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:26" (1/1) ... [2018-11-28 20:43:26,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:26" (1/1) ... [2018-11-28 20:43:26,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:43:26,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:43:26,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:43:26,950 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:43:26,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:26" (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 20:43:27,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:43:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:43:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:43:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:43:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:43:27,031 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:43:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:43:27,031 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:43:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:43:27,031 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:43:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:43:27,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:43:27,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:43:27,038 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 20:43:27,525 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:43:27,526 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:43:27,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:27 BoogieIcfgContainer [2018-11-28 20:43:27,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:43:27,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:43:27,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:43:27,532 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:43:27,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:43:26" (1/3) ... [2018-11-28 20:43:27,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c5a629e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:27, skipping insertion in model container [2018-11-28 20:43:27,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:26" (2/3) ... [2018-11-28 20:43:27,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c5a629e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:27, skipping insertion in model container [2018-11-28 20:43:27,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:27" (3/3) ... [2018-11-28 20:43:27,537 INFO L112 eAbstractionObserver]: Analyzing ICFG safe023_tso.oepc_true-unreach-call.i [2018-11-28 20:43:27,573 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,573 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,573 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,573 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,574 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,574 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,574 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,574 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,574 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,575 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,575 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,575 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,575 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,577 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,578 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,578 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,578 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,578 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,578 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,578 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,580 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,580 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,580 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,580 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,581 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,581 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,582 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,582 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,582 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,582 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:27,607 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:43:27,608 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:43:27,616 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:43:27,635 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:43:27,662 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:43:27,663 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:43:27,663 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:43:27,663 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:43:27,663 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:43:27,663 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:43:27,663 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:43:27,664 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:43:27,664 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:43:27,674 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2018-11-28 20:43:27,818 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2018-11-28 20:43:27,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2018-11-28 20:43:27,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 20:43:27,853 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:27,854 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] [2018-11-28 20:43:27,857 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:27,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:27,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1527644630, now seen corresponding path program 1 times [2018-11-28 20:43:27,867 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:27,868 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:27,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:27,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:27,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:28,248 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 20:43:28,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:28,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:43:28,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:43:28,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:43:28,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:43:28,271 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2018-11-28 20:43:28,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:28,507 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2018-11-28 20:43:28,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:43:28,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-28 20:43:28,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:28,554 INFO L225 Difference]: With dead ends: 2493 [2018-11-28 20:43:28,556 INFO L226 Difference]: Without dead ends: 1128 [2018-11-28 20:43:28,558 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 20:43:28,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2018-11-28 20:43:28,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2018-11-28 20:43:28,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2018-11-28 20:43:28,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2018-11-28 20:43:28,724 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2018-11-28 20:43:28,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:28,726 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2018-11-28 20:43:28,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:43:28,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2018-11-28 20:43:28,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:43:28,735 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:28,735 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 20:43:28,736 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:28,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:28,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1534799274, now seen corresponding path program 1 times [2018-11-28 20:43:28,736 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:28,737 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:28,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:28,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:28,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:28,959 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 20:43:28,960 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:28,960 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:43:28,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:43:28,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:43:28,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:43:28,966 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2018-11-28 20:43:29,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:29,441 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2018-11-28 20:43:29,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:43:29,442 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-28 20:43:29,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:29,453 INFO L225 Difference]: With dead ends: 1168 [2018-11-28 20:43:29,454 INFO L226 Difference]: Without dead ends: 1044 [2018-11-28 20:43:29,455 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 20:43:29,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2018-11-28 20:43:29,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2018-11-28 20:43:29,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2018-11-28 20:43:29,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2018-11-28 20:43:29,499 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2018-11-28 20:43:29,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:29,501 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2018-11-28 20:43:29,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:43:29,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2018-11-28 20:43:29,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:43:29,505 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:29,505 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] [2018-11-28 20:43:29,505 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:29,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:29,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1935451892, now seen corresponding path program 1 times [2018-11-28 20:43:29,506 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:29,506 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:29,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:29,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:29,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:29,859 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 20:43:29,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:29,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:43:29,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:43:29,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:43:29,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:43:29,862 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2018-11-28 20:43:30,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:30,028 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2018-11-28 20:43:30,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:30,028 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-28 20:43:30,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:30,034 INFO L225 Difference]: With dead ends: 820 [2018-11-28 20:43:30,034 INFO L226 Difference]: Without dead ends: 708 [2018-11-28 20:43:30,035 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-28 20:43:30,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-11-28 20:43:30,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2018-11-28 20:43:30,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-11-28 20:43:30,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2018-11-28 20:43:30,060 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2018-11-28 20:43:30,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:30,060 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2018-11-28 20:43:30,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:43:30,060 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2018-11-28 20:43:30,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:43:30,062 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:30,063 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] [2018-11-28 20:43:30,063 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:30,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:30,063 INFO L82 PathProgramCache]: Analyzing trace with hash 794836574, now seen corresponding path program 1 times [2018-11-28 20:43:30,063 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:30,064 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:30,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:30,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:30,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:30,313 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 20:43:30,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:30,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:30,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:30,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:30,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:30,314 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 7 states. [2018-11-28 20:43:30,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:30,614 INFO L93 Difference]: Finished difference Result 1700 states and 5091 transitions. [2018-11-28 20:43:30,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:30,617 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 20:43:30,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:30,627 INFO L225 Difference]: With dead ends: 1700 [2018-11-28 20:43:30,628 INFO L226 Difference]: Without dead ends: 1236 [2018-11-28 20:43:30,628 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-11-28 20:43:30,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2018-11-28 20:43:30,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 708. [2018-11-28 20:43:30,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-11-28 20:43:30,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2047 transitions. [2018-11-28 20:43:30,659 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2047 transitions. Word has length 33 [2018-11-28 20:43:30,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:30,659 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2047 transitions. [2018-11-28 20:43:30,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:30,660 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2047 transitions. [2018-11-28 20:43:30,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:43:30,663 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:30,663 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] [2018-11-28 20:43:30,663 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:30,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:30,663 INFO L82 PathProgramCache]: Analyzing trace with hash -602555494, now seen corresponding path program 2 times [2018-11-28 20:43:30,665 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:30,665 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:30,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:30,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:30,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:30,854 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 20:43:30,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:30,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:30,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:30,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:30,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:30,855 INFO L87 Difference]: Start difference. First operand 708 states and 2047 transitions. Second operand 7 states. [2018-11-28 20:43:31,358 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 20:43:31,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:31,698 INFO L93 Difference]: Finished difference Result 1876 states and 5639 transitions. [2018-11-28 20:43:31,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 20:43:31,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 20:43:31,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:31,704 INFO L225 Difference]: With dead ends: 1876 [2018-11-28 20:43:31,704 INFO L226 Difference]: Without dead ends: 556 [2018-11-28 20:43:31,705 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2018-11-28 20:43:31,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2018-11-28 20:43:31,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2018-11-28 20:43:31,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-11-28 20:43:31,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2018-11-28 20:43:31,722 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2018-11-28 20:43:31,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:31,723 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2018-11-28 20:43:31,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:31,723 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2018-11-28 20:43:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:43:31,724 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:31,724 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] [2018-11-28 20:43:31,725 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:31,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:31,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1919769948, now seen corresponding path program 3 times [2018-11-28 20:43:31,725 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:31,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:31,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:31,727 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:43:31,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:31,904 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 20:43:31,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:31,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:31,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:31,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:31,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:31,905 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 7 states. [2018-11-28 20:43:32,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:32,024 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2018-11-28 20:43:32,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:32,024 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 20:43:32,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:32,025 INFO L225 Difference]: With dead ends: 428 [2018-11-28 20:43:32,025 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:43:32,025 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:43:32,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:43:32,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:43:32,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:43:32,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:43:32,026 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-28 20:43:32,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:32,026 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:43:32,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:32,027 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:43:32,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:43:32,030 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:43:32,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:43:32 BasicIcfg [2018-11-28 20:43:32,032 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:43:32,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:43:32,033 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:43:32,033 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:43:32,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:27" (3/4) ... [2018-11-28 20:43:32,037 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:43:32,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:43:32,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:43:32,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:43:32,049 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 20:43:32,049 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:43:32,100 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:43:32,101 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:43:32,102 INFO L168 Benchmark]: Toolchain (without parser) took 6013.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 952.7 MB in the beginning and 850.5 MB in the end (delta: 102.2 MB). Peak memory consumption was 249.5 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:32,103 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:32,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -165.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:32,105 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.13 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 20:43:32,105 INFO L168 Benchmark]: Boogie Preprocessor took 27.92 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 20:43:32,106 INFO L168 Benchmark]: RCFGBuilder took 577.28 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: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:32,106 INFO L168 Benchmark]: TraceAbstraction took 4504.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 857.4 MB in the end (delta: 234.7 MB). Peak memory consumption was 234.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:32,107 INFO L168 Benchmark]: Witness Printer took 68.29 ms. Allocated memory is still 1.2 GB. Free memory was 857.4 MB in the beginning and 850.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:32,112 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 778.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -165.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.13 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 27.92 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 577.28 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: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4504.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 857.4 MB in the end (delta: 234.7 MB). Peak memory consumption was 234.7 MB. Max. memory is 11.5 GB. * Witness Printer took 68.29 ms. Allocated memory is still 1.2 GB. Free memory was 857.4 MB in the beginning and 850.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 71 locations, 1 error locations. SAFE Result, 4.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 390 SDtfs, 465 SDslu, 1044 SDs, 0 SdLazy, 121 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 528 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 15038 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...