./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-atomic/time_var_mutex_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-atomic/time_var_mutex_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 c9be30ae23e057bcf1193492745062121e76eb74 ................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 17:29:54,274 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 17:29:54,276 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 17:29:54,288 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 17:29:54,289 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 17:29:54,290 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 17:29:54,291 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 17:29:54,294 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 17:29:54,296 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 17:29:54,297 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 17:29:54,298 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 17:29:54,298 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 17:29:54,299 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 17:29:54,300 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 17:29:54,302 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 17:29:54,302 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 17:29:54,303 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 17:29:54,305 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 17:29:54,308 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 17:29:54,310 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 17:29:54,311 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 17:29:54,312 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 17:29:54,315 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 17:29:54,316 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 17:29:54,316 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 17:29:54,317 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 17:29:54,318 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 17:29:54,319 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 17:29:54,320 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 17:29:54,321 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 17:29:54,322 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 17:29:54,323 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 17:29:54,323 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 17:29:54,323 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 17:29:54,325 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 17:29:54,326 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 17:29:54,326 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 17:29:54,343 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 17:29:54,343 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 17:29:54,344 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 17:29:54,345 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 17:29:54,345 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 17:29:54,345 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 17:29:54,345 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 17:29:54,346 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 17:29:54,347 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 17:29:54,347 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 17:29:54,347 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 17:29:54,347 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 17:29:54,347 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 17:29:54,348 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 17:29:54,348 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 17:29:54,348 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 17:29:54,348 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 17:29:54,350 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 17:29:54,350 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 17:29:54,350 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 17:29:54,350 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 17:29:54,351 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 17:29:54,351 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 17:29:54,351 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 17:29:54,351 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 17:29:54,351 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 17:29:54,351 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 17:29:54,353 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 17:29:54,353 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 -> c9be30ae23e057bcf1193492745062121e76eb74 [2018-12-31 17:29:54,390 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 17:29:54,407 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 17:29:54,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 17:29:54,414 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 17:29:54,414 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 17:29:54,416 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-atomic/time_var_mutex_true-unreach-call.i [2018-12-31 17:29:54,484 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84fb4aca5/3ccc9ccff7144d6e8572a3d2e47832d4/FLAGdb967d7c4 [2018-12-31 17:29:55,022 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 17:29:55,023 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-atomic/time_var_mutex_true-unreach-call.i [2018-12-31 17:29:55,040 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84fb4aca5/3ccc9ccff7144d6e8572a3d2e47832d4/FLAGdb967d7c4 [2018-12-31 17:29:55,300 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84fb4aca5/3ccc9ccff7144d6e8572a3d2e47832d4 [2018-12-31 17:29:55,306 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 17:29:55,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 17:29:55,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 17:29:55,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 17:29:55,317 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 17:29:55,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:29:55" (1/1) ... [2018-12-31 17:29:55,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66f03938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:29:55, skipping insertion in model container [2018-12-31 17:29:55,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:29:55" (1/1) ... [2018-12-31 17:29:55,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 17:29:55,383 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 17:29:55,824 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 17:29:55,850 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 17:29:55,972 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 17:29:56,091 INFO L195 MainTranslator]: Completed translation [2018-12-31 17:29:56,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:29:56 WrapperNode [2018-12-31 17:29:56,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 17:29:56,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 17:29:56,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 17:29:56,093 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 17:29:56,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:29:56" (1/1) ... [2018-12-31 17:29:56,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:29:56" (1/1) ... [2018-12-31 17:29:56,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 17:29:56,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 17:29:56,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 17:29:56,170 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 17:29:56,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:29:56" (1/1) ... [2018-12-31 17:29:56,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:29:56" (1/1) ... [2018-12-31 17:29:56,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:29:56" (1/1) ... [2018-12-31 17:29:56,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:29:56" (1/1) ... [2018-12-31 17:29:56,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:29:56" (1/1) ... [2018-12-31 17:29:56,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:29:56" (1/1) ... [2018-12-31 17:29:56,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:29:56" (1/1) ... [2018-12-31 17:29:56,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 17:29:56,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 17:29:56,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 17:29:56,206 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 17:29:56,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:29:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 17:29:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2018-12-31 17:29:56,285 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2018-12-31 17:29:56,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-31 17:29:56,285 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2018-12-31 17:29:56,285 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2018-12-31 17:29:56,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-31 17:29:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-12-31 17:29:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 17:29:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 17:29:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-31 17:29:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-31 17:29:56,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 17:29:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 17:29:56,293 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-31 17:29:56,952 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 17:29:56,953 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 17:29:56,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:29:56 BoogieIcfgContainer [2018-12-31 17:29:56,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 17:29:56,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 17:29:56,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 17:29:56,958 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 17:29:56,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 05:29:55" (1/3) ... [2018-12-31 17:29:56,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:29:56, skipping insertion in model container [2018-12-31 17:29:56,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:29:56" (2/3) ... [2018-12-31 17:29:56,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:29:56, skipping insertion in model container [2018-12-31 17:29:56,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:29:56" (3/3) ... [2018-12-31 17:29:56,961 INFO L112 eAbstractionObserver]: Analyzing ICFG time_var_mutex_true-unreach-call.i [2018-12-31 17:29:56,996 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:56,997 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:56,997 WARN L317 ript$VariableManager]: TermVariabe Thread1_allocator_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:56,997 WARN L317 ript$VariableManager]: TermVariabe Thread1_allocator_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:56,997 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:56,997 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:56,999 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:57,000 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:57,001 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:57,001 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:57,002 WARN L317 ript$VariableManager]: TermVariabe |Thread0_de_allocator_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:57,002 WARN L317 ript$VariableManager]: TermVariabe |Thread0_de_allocator_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:57,002 WARN L317 ript$VariableManager]: TermVariabe Thread0_de_allocator_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:57,002 WARN L317 ript$VariableManager]: TermVariabe Thread0_de_allocator_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:57,002 WARN L317 ript$VariableManager]: TermVariabe |Thread0_de_allocator_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:57,004 WARN L317 ript$VariableManager]: TermVariabe |Thread0_de_allocator_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:57,004 WARN L317 ript$VariableManager]: TermVariabe |Thread0_de_allocator_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:57,004 WARN L317 ript$VariableManager]: TermVariabe |Thread0_de_allocator_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:29:57,067 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-31 17:29:57,067 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 17:29:57,076 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-31 17:29:57,095 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-31 17:29:57,129 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 17:29:57,130 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 17:29:57,130 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 17:29:57,130 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 17:29:57,130 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 17:29:57,131 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 17:29:57,131 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 17:29:57,132 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 17:29:57,132 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 17:29:57,145 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77places, 80 transitions [2018-12-31 17:29:57,216 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 789 states. [2018-12-31 17:29:57,220 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states. [2018-12-31 17:29:57,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-31 17:29:57,232 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 17:29:57,234 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] [2018-12-31 17:29:57,236 INFO L423 AbstractCegarLoop]: === Iteration 1 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 17:29:57,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 17:29:57,244 INFO L82 PathProgramCache]: Analyzing trace with hash -450928561, now seen corresponding path program 1 times [2018-12-31 17:29:57,247 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 17:29:57,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 17:29:57,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:29:57,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 17:29:57,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:29:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 17:29:57,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 17:29:57,597 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 17:29:57,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 17:29:57,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 17:29:57,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 17:29:57,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 17:29:57,623 INFO L87 Difference]: Start difference. First operand 789 states. Second operand 3 states. [2018-12-31 17:29:57,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 17:29:57,695 INFO L93 Difference]: Finished difference Result 789 states and 1906 transitions. [2018-12-31 17:29:57,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 17:29:57,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2018-12-31 17:29:57,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 17:29:57,732 INFO L225 Difference]: With dead ends: 789 [2018-12-31 17:29:57,733 INFO L226 Difference]: Without dead ends: 708 [2018-12-31 17:29:57,734 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 17:29:57,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-12-31 17:29:57,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2018-12-31 17:29:57,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-12-31 17:29:57,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1705 transitions. [2018-12-31 17:29:57,836 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1705 transitions. Word has length 37 [2018-12-31 17:29:57,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 17:29:57,837 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 1705 transitions. [2018-12-31 17:29:57,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 17:29:57,838 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1705 transitions. [2018-12-31 17:29:57,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-31 17:29:57,840 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 17:29:57,841 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, 1, 1, 1] [2018-12-31 17:29:57,841 INFO L423 AbstractCegarLoop]: === Iteration 2 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 17:29:57,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 17:29:57,841 INFO L82 PathProgramCache]: Analyzing trace with hash -799836480, now seen corresponding path program 1 times [2018-12-31 17:29:57,842 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 17:29:57,842 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 17:29:57,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:29:57,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 17:29:57,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:29:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 17:29:57,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 17:29:57,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 17:29:57,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 17:29:57,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 17:29:57,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 17:29:57,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 17:29:57,947 INFO L87 Difference]: Start difference. First operand 708 states and 1705 transitions. Second operand 3 states. [2018-12-31 17:29:57,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 17:29:57,997 INFO L93 Difference]: Finished difference Result 717 states and 1676 transitions. [2018-12-31 17:29:57,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 17:29:57,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2018-12-31 17:29:57,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 17:29:58,005 INFO L225 Difference]: With dead ends: 717 [2018-12-31 17:29:58,005 INFO L226 Difference]: Without dead ends: 615 [2018-12-31 17:29:58,006 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 17:29:58,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2018-12-31 17:29:58,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 570. [2018-12-31 17:29:58,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2018-12-31 17:29:58,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1352 transitions. [2018-12-31 17:29:58,038 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1352 transitions. Word has length 40 [2018-12-31 17:29:58,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 17:29:58,039 INFO L480 AbstractCegarLoop]: Abstraction has 570 states and 1352 transitions. [2018-12-31 17:29:58,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 17:29:58,039 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1352 transitions. [2018-12-31 17:29:58,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-12-31 17:29:58,043 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 17:29:58,044 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, 1, 1, 1, 1, 1] [2018-12-31 17:29:58,044 INFO L423 AbstractCegarLoop]: === Iteration 3 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 17:29:58,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 17:29:58,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1504033656, now seen corresponding path program 1 times [2018-12-31 17:29:58,045 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 17:29:58,045 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 17:29:58,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:29:58,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 17:29:58,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:29:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 17:29:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 17:29:58,133 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 17:29:58,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 17:29:58,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 17:29:58,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 17:29:58,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 17:29:58,134 INFO L87 Difference]: Start difference. First operand 570 states and 1352 transitions. Second operand 3 states. [2018-12-31 17:29:58,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 17:29:58,248 INFO L93 Difference]: Finished difference Result 531 states and 1223 transitions. [2018-12-31 17:29:58,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 17:29:58,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2018-12-31 17:29:58,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 17:29:58,252 INFO L225 Difference]: With dead ends: 531 [2018-12-31 17:29:58,252 INFO L226 Difference]: Without dead ends: 366 [2018-12-31 17:29:58,253 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 17:29:58,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2018-12-31 17:29:58,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2018-12-31 17:29:58,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2018-12-31 17:29:58,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 790 transitions. [2018-12-31 17:29:58,293 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 790 transitions. Word has length 42 [2018-12-31 17:29:58,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 17:29:58,293 INFO L480 AbstractCegarLoop]: Abstraction has 366 states and 790 transitions. [2018-12-31 17:29:58,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 17:29:58,294 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 790 transitions. [2018-12-31 17:29:58,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-31 17:29:58,305 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 17:29:58,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 17:29:58,305 INFO L423 AbstractCegarLoop]: === Iteration 4 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 17:29:58,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 17:29:58,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1891568830, now seen corresponding path program 1 times [2018-12-31 17:29:58,306 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 17:29:58,306 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 17:29:58,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:29:58,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 17:29:58,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:29:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 17:29:58,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 17:29:58,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 17:29:58,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 17:29:58,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 17:29:58,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 17:29:58,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-31 17:29:58,602 INFO L87 Difference]: Start difference. First operand 366 states and 790 transitions. Second operand 5 states. [2018-12-31 17:29:58,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 17:29:58,692 INFO L93 Difference]: Finished difference Result 366 states and 778 transitions. [2018-12-31 17:29:58,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 17:29:58,695 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2018-12-31 17:29:58,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 17:29:58,699 INFO L225 Difference]: With dead ends: 366 [2018-12-31 17:29:58,699 INFO L226 Difference]: Without dead ends: 306 [2018-12-31 17:29:58,700 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-31 17:29:58,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2018-12-31 17:29:58,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2018-12-31 17:29:58,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2018-12-31 17:29:58,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 638 transitions. [2018-12-31 17:29:58,713 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 638 transitions. Word has length 50 [2018-12-31 17:29:58,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 17:29:58,713 INFO L480 AbstractCegarLoop]: Abstraction has 306 states and 638 transitions. [2018-12-31 17:29:58,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 17:29:58,713 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 638 transitions. [2018-12-31 17:29:58,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-31 17:29:58,725 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 17:29:58,726 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 17:29:58,727 INFO L423 AbstractCegarLoop]: === Iteration 5 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 17:29:58,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 17:29:58,727 INFO L82 PathProgramCache]: Analyzing trace with hash -899686946, now seen corresponding path program 1 times [2018-12-31 17:29:58,727 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 17:29:58,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 17:29:58,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:29:58,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 17:29:58,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:29:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 17:29:58,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 17:29:58,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 17:29:58,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 17:29:58,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 17:29:58,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 17:29:58,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-31 17:29:58,978 INFO L87 Difference]: Start difference. First operand 306 states and 638 transitions. Second operand 5 states. [2018-12-31 17:29:59,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 17:29:59,224 INFO L93 Difference]: Finished difference Result 153 states and 302 transitions. [2018-12-31 17:29:59,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 17:29:59,224 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2018-12-31 17:29:59,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 17:29:59,225 INFO L225 Difference]: With dead ends: 153 [2018-12-31 17:29:59,225 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 17:29:59,225 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-12-31 17:29:59,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 17:29:59,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 17:29:59,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 17:29:59,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 17:29:59,226 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-12-31 17:29:59,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 17:29:59,227 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 17:29:59,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 17:29:59,227 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 17:29:59,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 17:29:59,231 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-31 17:29:59,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 05:29:59 BasicIcfg [2018-12-31 17:29:59,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 17:29:59,233 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 17:29:59,233 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 17:29:59,234 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 17:29:59,234 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:29:56" (3/4) ... [2018-12-31 17:29:59,238 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 17:29:59,246 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2018-12-31 17:29:59,246 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2018-12-31 17:29:59,251 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-31 17:29:59,252 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-31 17:29:59,300 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 17:29:59,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 17:29:59,301 INFO L168 Benchmark]: Toolchain (without parser) took 3994.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.6 MB). Free memory was 951.3 MB in the beginning and 898.2 MB in the end (delta: 53.2 MB). Peak memory consumption was 130.8 MB. Max. memory is 11.5 GB. [2018-12-31 17:29:59,303 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 17:29:59,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 782.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.6 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -98.7 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-12-31 17:29:59,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 17:29:59,305 INFO L168 Benchmark]: Boogie Preprocessor took 35.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 17:29:59,306 INFO L168 Benchmark]: RCFGBuilder took 747.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2018-12-31 17:29:59,307 INFO L168 Benchmark]: TraceAbstraction took 2278.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 905.2 MB in the end (delta: 119.1 MB). Peak memory consumption was 119.1 MB. Max. memory is 11.5 GB. [2018-12-31 17:29:59,308 INFO L168 Benchmark]: Witness Printer took 67.25 ms. Allocated memory is still 1.1 GB. Free memory was 905.2 MB in the beginning and 898.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-12-31 17:29:59,312 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 782.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.6 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -98.7 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 747.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2278.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 905.2 MB in the end (delta: 119.1 MB). Peak memory consumption was 119.1 MB. Max. memory is 11.5 GB. * Witness Printer took 67.25 ms. Allocated memory is still 1.1 GB. Free memory was 905.2 MB in the beginning and 898.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 658]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 650]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 658]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 650]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 106 locations, 4 error locations. SAFE Result, 2.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 351 SDtfs, 260 SDslu, 224 SDs, 0 SdLazy, 44 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=789occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 45 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 219 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 27620 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...