./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe017_tso.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/pthread-wmm/safe017_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 69001bbd31af67c0515525916b00925e356b0415 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 00:57:21,157 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 00:57:21,160 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 00:57:21,176 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 00:57:21,176 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 00:57:21,177 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 00:57:21,179 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 00:57:21,181 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 00:57:21,183 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 00:57:21,184 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 00:57:21,185 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 00:57:21,186 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 00:57:21,187 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 00:57:21,188 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 00:57:21,190 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 00:57:21,191 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 00:57:21,192 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 00:57:21,194 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 00:57:21,196 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 00:57:21,198 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 00:57:21,199 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 00:57:21,201 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 00:57:21,204 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 00:57:21,204 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 00:57:21,205 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 00:57:21,206 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 00:57:21,207 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 00:57:21,208 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 00:57:21,209 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 00:57:21,210 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 00:57:21,210 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 00:57:21,212 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 00:57:21,212 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 00:57:21,212 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 00:57:21,215 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 00:57:21,216 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 00:57:21,216 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-01 00:57:21,249 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 00:57:21,249 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 00:57:21,251 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 00:57:21,251 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 00:57:21,251 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 00:57:21,251 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 00:57:21,251 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 00:57:21,253 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 00:57:21,253 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 00:57:21,254 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 00:57:21,254 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 00:57:21,254 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 00:57:21,254 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 00:57:21,254 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 00:57:21,254 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 00:57:21,255 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 00:57:21,256 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 00:57:21,256 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 00:57:21,256 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 00:57:21,256 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 00:57:21,256 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 00:57:21,258 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:57:21,259 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 00:57:21,259 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 00:57:21,259 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 00:57:21,259 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 00:57:21,260 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 00:57:21,260 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 00:57:21,261 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 -> 69001bbd31af67c0515525916b00925e356b0415 [2019-01-01 00:57:21,323 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 00:57:21,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 00:57:21,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 00:57:21,351 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 00:57:21,352 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 00:57:21,352 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe017_tso.opt_true-unreach-call.i [2019-01-01 00:57:21,421 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/046e84e75/caada8edde7e43329b34a00c8fc8416d/FLAGc668d14b4 [2019-01-01 00:57:22,006 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 00:57:22,007 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe017_tso.opt_true-unreach-call.i [2019-01-01 00:57:22,026 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/046e84e75/caada8edde7e43329b34a00c8fc8416d/FLAGc668d14b4 [2019-01-01 00:57:22,285 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/046e84e75/caada8edde7e43329b34a00c8fc8416d [2019-01-01 00:57:22,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 00:57:22,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 00:57:22,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 00:57:22,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 00:57:22,298 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 00:57:22,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:57:22" (1/1) ... [2019-01-01 00:57:22,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a64539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:22, skipping insertion in model container [2019-01-01 00:57:22,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:57:22" (1/1) ... [2019-01-01 00:57:22,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 00:57:22,367 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 00:57:22,850 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:57:22,864 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 00:57:23,031 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:57:23,127 INFO L195 MainTranslator]: Completed translation [2019-01-01 00:57:23,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:23 WrapperNode [2019-01-01 00:57:23,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 00:57:23,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 00:57:23,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 00:57:23,129 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 00:57:23,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:23" (1/1) ... [2019-01-01 00:57:23,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:23" (1/1) ... [2019-01-01 00:57:23,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 00:57:23,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 00:57:23,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 00:57:23,183 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 00:57:23,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:23" (1/1) ... [2019-01-01 00:57:23,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:23" (1/1) ... [2019-01-01 00:57:23,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:23" (1/1) ... [2019-01-01 00:57:23,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:23" (1/1) ... [2019-01-01 00:57:23,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:23" (1/1) ... [2019-01-01 00:57:23,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:23" (1/1) ... [2019-01-01 00:57:23,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:23" (1/1) ... [2019-01-01 00:57:23,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 00:57:23,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 00:57:23,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 00:57:23,218 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 00:57:23,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:57:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 00:57:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-01 00:57:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 00:57:23,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 00:57:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-01 00:57:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-01 00:57:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-01 00:57:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-01 00:57:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-01 00:57:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-01 00:57:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-01 00:57:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 00:57:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 00:57:23,293 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-01 00:57:23,781 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 00:57:23,782 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 00:57:23,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:57:23 BoogieIcfgContainer [2019-01-01 00:57:23,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 00:57:23,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 00:57:23,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 00:57:23,787 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 00:57:23,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 12:57:22" (1/3) ... [2019-01-01 00:57:23,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd5ce30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:57:23, skipping insertion in model container [2019-01-01 00:57:23,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:23" (2/3) ... [2019-01-01 00:57:23,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd5ce30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:57:23, skipping insertion in model container [2019-01-01 00:57:23,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:57:23" (3/3) ... [2019-01-01 00:57:23,791 INFO L112 eAbstractionObserver]: Analyzing ICFG safe017_tso.opt_true-unreach-call.i [2019-01-01 00:57:23,829 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,829 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,829 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,830 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,830 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,830 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,830 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,830 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,831 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,831 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,831 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,831 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,832 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,832 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,832 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,832 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,832 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,832 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,833 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,833 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,833 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,833 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,833 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,834 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,834 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,834 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,834 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,834 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,835 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,835 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:57:23,873 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 00:57:23,873 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 00:57:23,883 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-01 00:57:23,902 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-01 00:57:23,930 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 00:57:23,931 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 00:57:23,931 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 00:57:23,931 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 00:57:23,931 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 00:57:23,931 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 00:57:23,932 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 00:57:23,932 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 00:57:23,932 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 00:57:23,942 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54places, 51 transitions [2019-01-01 00:57:24,100 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2383 states. [2019-01-01 00:57:24,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states. [2019-01-01 00:57:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-01-01 00:57:24,127 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:57:24,128 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] [2019-01-01 00:57:24,132 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:57:24,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:57:24,140 INFO L82 PathProgramCache]: Analyzing trace with hash -96387719, now seen corresponding path program 1 times [2019-01-01 00:57:24,143 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:57:24,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:57:24,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:24,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:57:24,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:57:24,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:57:24,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:57:24,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 00:57:24,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 00:57:24,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 00:57:24,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 00:57:24,688 INFO L87 Difference]: Start difference. First operand 2383 states. Second operand 4 states. [2019-01-01 00:57:25,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:57:25,026 INFO L93 Difference]: Finished difference Result 2491 states and 8067 transitions. [2019-01-01 00:57:25,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 00:57:25,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-01-01 00:57:25,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:57:25,078 INFO L225 Difference]: With dead ends: 2491 [2019-01-01 00:57:25,079 INFO L226 Difference]: Without dead ends: 1126 [2019-01-01 00:57:25,081 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:57:25,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2019-01-01 00:57:25,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2019-01-01 00:57:25,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2019-01-01 00:57:25,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 3556 transitions. [2019-01-01 00:57:25,290 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 3556 transitions. Word has length 28 [2019-01-01 00:57:25,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:57:25,291 INFO L480 AbstractCegarLoop]: Abstraction has 1126 states and 3556 transitions. [2019-01-01 00:57:25,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 00:57:25,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 3556 transitions. [2019-01-01 00:57:25,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-01-01 00:57:25,301 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:57:25,301 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:57:25,301 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:57:25,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:57:25,302 INFO L82 PathProgramCache]: Analyzing trace with hash -180410605, now seen corresponding path program 1 times [2019-01-01 00:57:25,302 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:57:25,302 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:57:25,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:25,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:57:25,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:57:25,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:57:25,566 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:57:25,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 00:57:25,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 00:57:25,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 00:57:25,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:57:25,569 INFO L87 Difference]: Start difference. First operand 1126 states and 3556 transitions. Second operand 5 states. [2019-01-01 00:57:25,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:57:25,918 INFO L93 Difference]: Finished difference Result 1166 states and 3550 transitions. [2019-01-01 00:57:25,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:57:25,919 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-01-01 00:57:25,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:57:25,929 INFO L225 Difference]: With dead ends: 1166 [2019-01-01 00:57:25,930 INFO L226 Difference]: Without dead ends: 1042 [2019-01-01 00:57:25,931 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:57:25,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2019-01-01 00:57:25,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2019-01-01 00:57:25,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2019-01-01 00:57:25,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 3241 transitions. [2019-01-01 00:57:25,977 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 3241 transitions. Word has length 29 [2019-01-01 00:57:25,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:57:25,977 INFO L480 AbstractCegarLoop]: Abstraction has 1042 states and 3241 transitions. [2019-01-01 00:57:25,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 00:57:25,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 3241 transitions. [2019-01-01 00:57:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-01-01 00:57:25,981 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:57:25,981 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:57:25,982 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:57:25,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:57:25,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1508223209, now seen corresponding path program 1 times [2019-01-01 00:57:25,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:57:25,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:57:25,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:25,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:57:25,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:57:26,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:57:26,366 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:57:26,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:57:26,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:57:26,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:57:26,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:57:26,369 INFO L87 Difference]: Start difference. First operand 1042 states and 3241 transitions. Second operand 6 states. [2019-01-01 00:57:26,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:57:26,586 INFO L93 Difference]: Finished difference Result 818 states and 2377 transitions. [2019-01-01 00:57:26,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:57:26,588 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-01-01 00:57:26,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:57:26,594 INFO L225 Difference]: With dead ends: 818 [2019-01-01 00:57:26,595 INFO L226 Difference]: Without dead ends: 706 [2019-01-01 00:57:26,595 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-01-01 00:57:26,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2019-01-01 00:57:26,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2019-01-01 00:57:26,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2019-01-01 00:57:26,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2065 transitions. [2019-01-01 00:57:26,621 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2065 transitions. Word has length 30 [2019-01-01 00:57:26,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:57:26,621 INFO L480 AbstractCegarLoop]: Abstraction has 706 states and 2065 transitions. [2019-01-01 00:57:26,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:57:26,622 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2065 transitions. [2019-01-01 00:57:26,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:57:26,624 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:57:26,625 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:57:26,625 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:57:26,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:57:26,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1020559073, now seen corresponding path program 1 times [2019-01-01 00:57:26,626 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:57:26,626 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:57:26,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:26,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:57:26,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:57:26,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:57:26,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:57:26,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:57:26,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:57:26,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:57:26,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:57:26,816 INFO L87 Difference]: Start difference. First operand 706 states and 2065 transitions. Second operand 6 states. [2019-01-01 00:57:27,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:57:27,120 INFO L93 Difference]: Finished difference Result 1170 states and 3449 transitions. [2019-01-01 00:57:27,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:57:27,124 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-01-01 00:57:27,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:57:27,130 INFO L225 Difference]: With dead ends: 1170 [2019-01-01 00:57:27,130 INFO L226 Difference]: Without dead ends: 670 [2019-01-01 00:57:27,132 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 [2019-01-01 00:57:27,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2019-01-01 00:57:27,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2019-01-01 00:57:27,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2019-01-01 00:57:27,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1961 transitions. [2019-01-01 00:57:27,156 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1961 transitions. Word has length 31 [2019-01-01 00:57:27,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:57:27,156 INFO L480 AbstractCegarLoop]: Abstraction has 670 states and 1961 transitions. [2019-01-01 00:57:27,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:57:27,157 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1961 transitions. [2019-01-01 00:57:27,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:57:27,161 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:57:27,161 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:57:27,161 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:57:27,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:57:27,162 INFO L82 PathProgramCache]: Analyzing trace with hash 862008853, now seen corresponding path program 2 times [2019-01-01 00:57:27,162 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:57:27,162 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:57:27,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:27,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:57:27,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:57:27,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:57:27,440 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:57:27,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 00:57:27,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 00:57:27,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 00:57:27,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:57:27,442 INFO L87 Difference]: Start difference. First operand 670 states and 1961 transitions. Second operand 7 states. [2019-01-01 00:57:27,736 WARN L181 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2019-01-01 00:57:28,092 WARN L181 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2019-01-01 00:57:28,484 WARN L181 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2019-01-01 00:57:28,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:57:28,495 INFO L93 Difference]: Finished difference Result 1070 states and 3185 transitions. [2019-01-01 00:57:28,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-01 00:57:28,497 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2019-01-01 00:57:28,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:57:28,502 INFO L225 Difference]: With dead ends: 1070 [2019-01-01 00:57:28,503 INFO L226 Difference]: Without dead ends: 554 [2019-01-01 00:57:28,503 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-01-01 00:57:28,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2019-01-01 00:57:28,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2019-01-01 00:57:28,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2019-01-01 00:57:28,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1669 transitions. [2019-01-01 00:57:28,522 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1669 transitions. Word has length 31 [2019-01-01 00:57:28,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:57:28,523 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 1669 transitions. [2019-01-01 00:57:28,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 00:57:28,523 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1669 transitions. [2019-01-01 00:57:28,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:57:28,526 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:57:28,526 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:57:28,526 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:57:28,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:57:28,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1509348813, now seen corresponding path program 3 times [2019-01-01 00:57:28,527 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:57:28,527 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:57:28,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:28,531 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 00:57:28,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:57:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:57:28,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:57:28,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:57:28,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 00:57:28,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 00:57:28,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 00:57:28,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:57:28,699 INFO L87 Difference]: Start difference. First operand 554 states and 1669 transitions. Second operand 7 states. [2019-01-01 00:57:28,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:57:28,875 INFO L93 Difference]: Finished difference Result 426 states and 1253 transitions. [2019-01-01 00:57:28,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:57:28,875 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2019-01-01 00:57:28,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:57:28,876 INFO L225 Difference]: With dead ends: 426 [2019-01-01 00:57:28,876 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 00:57:28,878 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-01-01 00:57:28,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 00:57:28,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 00:57:28,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 00:57:28,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 00:57:28,879 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-01-01 00:57:28,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:57:28,879 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 00:57:28,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 00:57:28,879 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 00:57:28,881 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 00:57:28,885 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-01 00:57:28,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 12:57:28 BasicIcfg [2019-01-01 00:57:28,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 00:57:28,888 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 00:57:28,888 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 00:57:28,888 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 00:57:28,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:57:23" (3/4) ... [2019-01-01 00:57:28,895 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 00:57:28,903 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-01 00:57:28,904 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-01 00:57:28,904 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-01 00:57:28,910 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-01 00:57:28,911 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 00:57:28,963 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 00:57:28,963 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 00:57:28,964 INFO L168 Benchmark]: Toolchain (without parser) took 6674.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 952.7 MB in the beginning and 842.0 MB in the end (delta: 110.7 MB). Peak memory consumption was 242.3 MB. Max. memory is 11.5 GB. [2019-01-01 00:57:28,965 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:57:28,966 INFO L168 Benchmark]: CACSL2BoogieTranslator took 836.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -151.6 MB). Peak memory consumption was 35.7 MB. Max. memory is 11.5 GB. [2019-01-01 00:57:28,967 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.42 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. [2019-01-01 00:57:28,967 INFO L168 Benchmark]: Boogie Preprocessor took 33.93 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-01 00:57:28,968 INFO L168 Benchmark]: RCFGBuilder took 565.58 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-01-01 00:57:28,969 INFO L168 Benchmark]: TraceAbstraction took 5104.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 842.0 MB in the end (delta: 237.6 MB). Peak memory consumption was 237.6 MB. Max. memory is 11.5 GB. [2019-01-01 00:57:28,970 INFO L168 Benchmark]: Witness Printer took 75.01 ms. Allocated memory is still 1.2 GB. Free memory is still 842.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:57:28,975 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 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 836.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -151.6 MB). Peak memory consumption was 35.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.42 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 33.93 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 565.58 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5104.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 842.0 MB in the end (delta: 237.6 MB). Peak memory consumption was 237.6 MB. Max. memory is 11.5 GB. * Witness Printer took 75.01 ms. Allocated memory is still 1.2 GB. Free memory is still 842.0 MB. 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 7 procedures, 69 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 339 SDtfs, 395 SDslu, 864 SDs, 0 SdLazy, 106 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2383occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 12726 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...