./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe016_tso.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f 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/safe016_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 e0df0f201583376620f8d41b241ee31ba7c144db ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-13 05:50:21,110 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 05:50:21,112 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 05:50:21,128 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 05:50:21,128 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 05:50:21,129 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 05:50:21,131 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 05:50:21,133 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 05:50:21,135 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 05:50:21,136 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 05:50:21,137 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 05:50:21,137 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 05:50:21,138 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 05:50:21,140 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 05:50:21,141 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 05:50:21,142 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 05:50:21,143 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 05:50:21,145 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 05:50:21,147 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 05:50:21,149 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 05:50:21,150 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 05:50:21,151 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 05:50:21,154 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 05:50:21,154 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 05:50:21,154 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 05:50:21,155 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 05:50:21,156 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 05:50:21,158 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 05:50:21,159 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 05:50:21,160 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 05:50:21,160 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 05:50:21,161 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 05:50:21,161 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 05:50:21,161 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 05:50:21,163 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 05:50:21,164 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 05:50:21,164 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-13 05:50:21,181 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 05:50:21,182 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 05:50:21,183 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 05:50:21,183 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 05:50:21,184 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 05:50:21,184 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 05:50:21,184 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-13 05:50:21,184 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 05:50:21,184 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-13 05:50:21,185 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 05:50:21,185 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-13 05:50:21,185 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 05:50:21,185 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-13 05:50:21,185 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-13 05:50:21,185 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-13 05:50:21,186 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 05:50:21,187 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-13 05:50:21,187 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 05:50:21,187 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 05:50:21,188 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 05:50:21,188 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 05:50:21,188 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 05:50:21,188 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 05:50:21,188 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 05:50:21,189 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-13 05:50:21,189 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 05:50:21,189 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 05:50:21,189 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-13 05:50:21,190 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 -> e0df0f201583376620f8d41b241ee31ba7c144db [2019-01-13 05:50:21,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 05:50:21,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 05:50:21,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 05:50:21,274 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 05:50:21,274 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 05:50:21,275 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe016_tso.opt_true-unreach-call.i [2019-01-13 05:50:21,331 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e48a5e54f/121c11afc08b45fe929ba11ed678890a/FLAG34566ec2a [2019-01-13 05:50:21,856 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 05:50:21,857 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe016_tso.opt_true-unreach-call.i [2019-01-13 05:50:21,878 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e48a5e54f/121c11afc08b45fe929ba11ed678890a/FLAG34566ec2a [2019-01-13 05:50:22,114 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e48a5e54f/121c11afc08b45fe929ba11ed678890a [2019-01-13 05:50:22,118 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 05:50:22,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-13 05:50:22,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 05:50:22,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 05:50:22,125 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 05:50:22,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 05:50:22" (1/1) ... [2019-01-13 05:50:22,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199daf6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:22, skipping insertion in model container [2019-01-13 05:50:22,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 05:50:22" (1/1) ... [2019-01-13 05:50:22,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 05:50:22,194 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 05:50:22,563 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 05:50:22,576 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 05:50:22,701 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 05:50:22,792 INFO L195 MainTranslator]: Completed translation [2019-01-13 05:50:22,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:22 WrapperNode [2019-01-13 05:50:22,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 05:50:22,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-13 05:50:22,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-13 05:50:22,794 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-13 05:50:22,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:22" (1/1) ... [2019-01-13 05:50:22,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:22" (1/1) ... [2019-01-13 05:50:22,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-13 05:50:22,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 05:50:22,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 05:50:22,845 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 05:50:22,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:22" (1/1) ... [2019-01-13 05:50:22,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:22" (1/1) ... [2019-01-13 05:50:22,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:22" (1/1) ... [2019-01-13 05:50:22,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:22" (1/1) ... [2019-01-13 05:50:22,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:22" (1/1) ... [2019-01-13 05:50:22,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:22" (1/1) ... [2019-01-13 05:50:22,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:22" (1/1) ... [2019-01-13 05:50:22,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 05:50:22,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 05:50:22,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 05:50:22,874 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 05:50:22,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 05:50:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-13 05:50:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-13 05:50:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 05:50:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 05:50:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-13 05:50:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-13 05:50:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-13 05:50:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-13 05:50:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-13 05:50:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-13 05:50:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-01-13 05:50:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-01-13 05:50:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-13 05:50:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 05:50:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 05:50:22,942 WARN L204 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-13 05:50:23,477 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 05:50:23,477 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-13 05:50:23,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:50:23 BoogieIcfgContainer [2019-01-13 05:50:23,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 05:50:23,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 05:50:23,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 05:50:23,484 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 05:50:23,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 05:50:22" (1/3) ... [2019-01-13 05:50:23,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24102e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 05:50:23, skipping insertion in model container [2019-01-13 05:50:23,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 05:50:22" (2/3) ... [2019-01-13 05:50:23,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24102e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 05:50:23, skipping insertion in model container [2019-01-13 05:50:23,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:50:23" (3/3) ... [2019-01-13 05:50:23,487 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_tso.opt_true-unreach-call.i [2019-01-13 05:50:23,524 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,524 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,524 WARN L317 ript$VariableManager]: TermVariabe Thread3_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,524 WARN L317 ript$VariableManager]: TermVariabe Thread3_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,525 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,525 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,525 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,525 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,526 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,526 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,526 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,526 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,526 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,527 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,527 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,527 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,527 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,527 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,528 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,528 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,528 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,528 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,528 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,529 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,529 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,529 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,529 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,530 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,530 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,530 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,531 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,531 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,531 WARN L317 ript$VariableManager]: TermVariabe Thread2_P3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,531 WARN L317 ript$VariableManager]: TermVariabe Thread2_P3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,531 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#t~nondet6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,532 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#t~nondet6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,533 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,533 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,534 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#t~nondet6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,534 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P3_#t~nondet6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-13 05:50:23,549 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-13 05:50:23,550 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 05:50:23,558 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-13 05:50:23,574 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-13 05:50:23,600 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 05:50:23,600 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 05:50:23,601 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-13 05:50:23,601 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 05:50:23,601 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 05:50:23,601 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 05:50:23,601 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 05:50:23,601 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 05:50:23,601 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 05:50:23,612 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66places, 62 transitions [2019-01-13 05:50:24,632 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13134 states. [2019-01-13 05:50:24,634 INFO L276 IsEmpty]: Start isEmpty. Operand 13134 states. [2019-01-13 05:50:24,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-13 05:50:24,664 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:24,666 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 05:50:24,668 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:24,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:24,675 INFO L82 PathProgramCache]: Analyzing trace with hash -2047867289, now seen corresponding path program 1 times [2019-01-13 05:50:24,681 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:24,682 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:24,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:24,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:24,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:25,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:25,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:25,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 05:50:25,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-13 05:50:25,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-13 05:50:25,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-13 05:50:25,114 INFO L87 Difference]: Start difference. First operand 13134 states. Second operand 4 states. [2019-01-13 05:50:25,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:25,824 INFO L93 Difference]: Finished difference Result 13740 states and 55791 transitions. [2019-01-13 05:50:25,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 05:50:25,827 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-01-13 05:50:25,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:25,914 INFO L225 Difference]: With dead ends: 13740 [2019-01-13 05:50:25,914 INFO L226 Difference]: Without dead ends: 5627 [2019-01-13 05:50:25,916 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-13 05:50:25,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5627 states. [2019-01-13 05:50:26,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5627 to 5627. [2019-01-13 05:50:26,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5627 states. [2019-01-13 05:50:26,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5627 states to 5627 states and 22350 transitions. [2019-01-13 05:50:26,227 INFO L78 Accepts]: Start accepts. Automaton has 5627 states and 22350 transitions. Word has length 33 [2019-01-13 05:50:26,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:26,229 INFO L480 AbstractCegarLoop]: Abstraction has 5627 states and 22350 transitions. [2019-01-13 05:50:26,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-13 05:50:26,229 INFO L276 IsEmpty]: Start isEmpty. Operand 5627 states and 22350 transitions. [2019-01-13 05:50:26,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-01-13 05:50:26,237 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:26,237 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 05:50:26,237 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:26,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:26,238 INFO L82 PathProgramCache]: Analyzing trace with hash -142231847, now seen corresponding path program 1 times [2019-01-13 05:50:26,238 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:26,238 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:26,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:26,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:26,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:26,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:26,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-13 05:50:26,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-13 05:50:26,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-13 05:50:26,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-13 05:50:26,565 INFO L87 Difference]: Start difference. First operand 5627 states and 22350 transitions. Second operand 5 states. [2019-01-13 05:50:27,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:27,073 INFO L93 Difference]: Finished difference Result 6139 states and 23830 transitions. [2019-01-13 05:50:27,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-13 05:50:27,075 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-01-13 05:50:27,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:27,122 INFO L225 Difference]: With dead ends: 6139 [2019-01-13 05:50:27,122 INFO L226 Difference]: Without dead ends: 5515 [2019-01-13 05:50:27,123 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 [2019-01-13 05:50:27,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5515 states. [2019-01-13 05:50:27,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5515 to 5515. [2019-01-13 05:50:27,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5515 states. [2019-01-13 05:50:27,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5515 states to 5515 states and 21818 transitions. [2019-01-13 05:50:27,310 INFO L78 Accepts]: Start accepts. Automaton has 5515 states and 21818 transitions. Word has length 34 [2019-01-13 05:50:27,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:27,311 INFO L480 AbstractCegarLoop]: Abstraction has 5515 states and 21818 transitions. [2019-01-13 05:50:27,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-13 05:50:27,311 INFO L276 IsEmpty]: Start isEmpty. Operand 5515 states and 21818 transitions. [2019-01-13 05:50:27,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-01-13 05:50:27,320 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:27,320 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 05:50:27,321 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:27,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:27,321 INFO L82 PathProgramCache]: Analyzing trace with hash 728950643, now seen corresponding path program 1 times [2019-01-13 05:50:27,321 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:27,321 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:27,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:27,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:27,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:27,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:27,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-13 05:50:27,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-13 05:50:27,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-13 05:50:27,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-13 05:50:27,468 INFO L87 Difference]: Start difference. First operand 5515 states and 21818 transitions. Second operand 6 states. [2019-01-13 05:50:27,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:27,869 INFO L93 Difference]: Finished difference Result 5451 states and 20826 transitions. [2019-01-13 05:50:27,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 05:50:27,869 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-01-13 05:50:27,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:27,903 INFO L225 Difference]: With dead ends: 5451 [2019-01-13 05:50:27,903 INFO L226 Difference]: Without dead ends: 4843 [2019-01-13 05:50:27,904 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-01-13 05:50:27,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4843 states. [2019-01-13 05:50:28,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4843 to 4843. [2019-01-13 05:50:28,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4843 states. [2019-01-13 05:50:28,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 18794 transitions. [2019-01-13 05:50:28,048 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 18794 transitions. Word has length 35 [2019-01-13 05:50:28,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:28,048 INFO L480 AbstractCegarLoop]: Abstraction has 4843 states and 18794 transitions. [2019-01-13 05:50:28,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-13 05:50:28,049 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 18794 transitions. [2019-01-13 05:50:28,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-01-13 05:50:28,058 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:28,058 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 05:50:28,059 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:28,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:28,059 INFO L82 PathProgramCache]: Analyzing trace with hash 908223265, now seen corresponding path program 1 times [2019-01-13 05:50:28,059 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:28,059 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:28,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:28,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:28,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:28,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:28,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:28,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-13 05:50:28,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-13 05:50:28,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-13 05:50:28,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-01-13 05:50:28,233 INFO L87 Difference]: Start difference. First operand 4843 states and 18794 transitions. Second operand 7 states. [2019-01-13 05:50:28,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:28,683 INFO L93 Difference]: Finished difference Result 3563 states and 13034 transitions. [2019-01-13 05:50:28,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-13 05:50:28,684 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2019-01-13 05:50:28,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:28,705 INFO L225 Difference]: With dead ends: 3563 [2019-01-13 05:50:28,705 INFO L226 Difference]: Without dead ends: 3051 [2019-01-13 05:50:28,706 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-01-13 05:50:28,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2019-01-13 05:50:28,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 3051. [2019-01-13 05:50:28,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3051 states. [2019-01-13 05:50:28,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 11178 transitions. [2019-01-13 05:50:28,817 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 11178 transitions. Word has length 36 [2019-01-13 05:50:28,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:28,820 INFO L480 AbstractCegarLoop]: Abstraction has 3051 states and 11178 transitions. [2019-01-13 05:50:28,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-13 05:50:28,820 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 11178 transitions. [2019-01-13 05:50:28,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-01-13 05:50:28,828 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:28,829 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 05:50:28,829 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:28,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:28,829 INFO L82 PathProgramCache]: Analyzing trace with hash 552013999, now seen corresponding path program 1 times [2019-01-13 05:50:28,830 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:28,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:28,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:28,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:28,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:29,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:29,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-13 05:50:29,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-13 05:50:29,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-13 05:50:29,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-13 05:50:29,061 INFO L87 Difference]: Start difference. First operand 3051 states and 11178 transitions. Second operand 7 states. [2019-01-13 05:50:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:29,374 INFO L93 Difference]: Finished difference Result 5131 states and 18858 transitions. [2019-01-13 05:50:29,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 05:50:29,375 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2019-01-13 05:50:29,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:29,387 INFO L225 Difference]: With dead ends: 5131 [2019-01-13 05:50:29,387 INFO L226 Difference]: Without dead ends: 2855 [2019-01-13 05:50:29,388 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 [2019-01-13 05:50:29,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2019-01-13 05:50:29,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2855. [2019-01-13 05:50:29,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states. [2019-01-13 05:50:29,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 10542 transitions. [2019-01-13 05:50:29,555 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 10542 transitions. Word has length 37 [2019-01-13 05:50:29,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:29,555 INFO L480 AbstractCegarLoop]: Abstraction has 2855 states and 10542 transitions. [2019-01-13 05:50:29,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-13 05:50:29,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 10542 transitions. [2019-01-13 05:50:29,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-01-13 05:50:29,561 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:29,561 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 05:50:29,561 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:29,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:29,562 INFO L82 PathProgramCache]: Analyzing trace with hash 385641711, now seen corresponding path program 2 times [2019-01-13 05:50:29,562 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:29,562 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:29,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:29,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 05:50:29,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:29,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:29,672 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:29,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-13 05:50:29,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-13 05:50:29,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-13 05:50:29,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-13 05:50:29,674 INFO L87 Difference]: Start difference. First operand 2855 states and 10542 transitions. Second operand 6 states. [2019-01-13 05:50:29,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:29,815 INFO L93 Difference]: Finished difference Result 4535 states and 16902 transitions. [2019-01-13 05:50:29,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-13 05:50:29,818 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-01-13 05:50:29,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:29,829 INFO L225 Difference]: With dead ends: 4535 [2019-01-13 05:50:29,829 INFO L226 Difference]: Without dead ends: 2755 [2019-01-13 05:50:29,829 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 [2019-01-13 05:50:29,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2019-01-13 05:50:29,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2755. [2019-01-13 05:50:29,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2019-01-13 05:50:29,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 10202 transitions. [2019-01-13 05:50:29,901 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 10202 transitions. Word has length 37 [2019-01-13 05:50:29,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:29,901 INFO L480 AbstractCegarLoop]: Abstraction has 2755 states and 10202 transitions. [2019-01-13 05:50:29,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-13 05:50:29,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 10202 transitions. [2019-01-13 05:50:29,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-01-13 05:50:29,907 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:29,908 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 05:50:29,908 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:29,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:29,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1966895343, now seen corresponding path program 3 times [2019-01-13 05:50:29,908 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:29,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:29,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:29,912 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-13 05:50:29,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:30,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:30,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:30,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-13 05:50:30,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-13 05:50:30,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-13 05:50:30,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-13 05:50:30,165 INFO L87 Difference]: Start difference. First operand 2755 states and 10202 transitions. Second operand 6 states. [2019-01-13 05:50:30,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:30,284 INFO L93 Difference]: Finished difference Result 4611 states and 17130 transitions. [2019-01-13 05:50:30,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-13 05:50:30,286 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-01-13 05:50:30,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:30,295 INFO L225 Difference]: With dead ends: 4611 [2019-01-13 05:50:30,296 INFO L226 Difference]: Without dead ends: 2575 [2019-01-13 05:50:30,296 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-01-13 05:50:30,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2575 states. [2019-01-13 05:50:30,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2575 to 2575. [2019-01-13 05:50:30,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2575 states. [2019-01-13 05:50:30,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 9590 transitions. [2019-01-13 05:50:30,366 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 9590 transitions. Word has length 37 [2019-01-13 05:50:30,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:30,366 INFO L480 AbstractCegarLoop]: Abstraction has 2575 states and 9590 transitions. [2019-01-13 05:50:30,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-13 05:50:30,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 9590 transitions. [2019-01-13 05:50:30,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-01-13 05:50:30,373 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 05:50:30,373 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 05:50:30,373 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-13 05:50:30,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 05:50:30,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1178894303, now seen corresponding path program 4 times [2019-01-13 05:50:30,374 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 05:50:30,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 05:50:30,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:30,378 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-13 05:50:30,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 05:50:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 05:50:30,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 05:50:30,547 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 05:50:30,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-13 05:50:30,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-13 05:50:30,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-13 05:50:30,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-13 05:50:30,550 INFO L87 Difference]: Start difference. First operand 2575 states and 9590 transitions. Second operand 7 states. [2019-01-13 05:50:30,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 05:50:30,727 INFO L93 Difference]: Finished difference Result 2063 states and 7542 transitions. [2019-01-13 05:50:30,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-13 05:50:30,728 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2019-01-13 05:50:30,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 05:50:30,728 INFO L225 Difference]: With dead ends: 2063 [2019-01-13 05:50:30,728 INFO L226 Difference]: Without dead ends: 0 [2019-01-13 05:50:30,729 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 [2019-01-13 05:50:30,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-13 05:50:30,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-13 05:50:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-13 05:50:30,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-13 05:50:30,729 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2019-01-13 05:50:30,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 05:50:30,730 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-13 05:50:30,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-13 05:50:30,730 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-13 05:50:30,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-13 05:50:30,733 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-13 05:50:30,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 05:50:30 BasicIcfg [2019-01-13 05:50:30,735 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 05:50:30,735 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 05:50:30,735 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 05:50:30,735 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 05:50:30,736 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 05:50:23" (3/4) ... [2019-01-13 05:50:30,739 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-13 05:50:30,745 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-13 05:50:30,746 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-13 05:50:30,746 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-13 05:50:30,746 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-01-13 05:50:30,751 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-01-13 05:50:30,752 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-13 05:50:30,799 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-13 05:50:30,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 05:50:30,800 INFO L168 Benchmark]: Toolchain (without parser) took 8680.92 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 305.7 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -82.1 MB). Peak memory consumption was 223.6 MB. Max. memory is 11.5 GB. [2019-01-13 05:50:30,802 INFO L168 Benchmark]: CDTParser took 0.98 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 05:50:30,803 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -141.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2019-01-13 05:50:30,803 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-13 05:50:30,805 INFO L168 Benchmark]: Boogie Preprocessor took 29.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 05:50:30,805 INFO L168 Benchmark]: RCFGBuilder took 605.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2019-01-13 05:50:30,807 INFO L168 Benchmark]: TraceAbstraction took 7254.66 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.0 MB). Peak memory consumption was 213.1 MB. Max. memory is 11.5 GB. [2019-01-13 05:50:30,807 INFO L168 Benchmark]: Witness Printer took 63.99 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 05:50:30,812 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98 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 672.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -141.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 605.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7254.66 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.0 MB). Peak memory consumption was 213.1 MB. Max. memory is 11.5 GB. * Witness Printer took 63.99 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. 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 9 procedures, 86 locations, 1 error locations. SAFE Result, 7.1s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 538 SDtfs, 817 SDslu, 1387 SDs, 0 SdLazy, 162 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13134occurred 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: 1.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 286 NumberOfCodeBlocks, 286 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 278 ConstructedInterpolants, 0 QuantifiedInterpolants, 24206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...