./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack_longest_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stack_longest_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer --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 a6ab55767df3b26021df0e39ced39f80ee5a9fd9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 04:53:41,250 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 04:53:41,251 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 04:53:41,257 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 04:53:41,257 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 04:53:41,258 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 04:53:41,259 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 04:53:41,260 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 04:53:41,261 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 04:53:41,261 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 04:53:41,262 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 04:53:41,262 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 04:53:41,262 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 04:53:41,263 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 04:53:41,264 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 04:53:41,264 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 04:53:41,265 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 04:53:41,266 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 04:53:41,267 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 04:53:41,267 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 04:53:41,268 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 04:53:41,269 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 04:53:41,270 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 04:53:41,270 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 04:53:41,270 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 04:53:41,271 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 04:53:41,271 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 04:53:41,272 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 04:53:41,272 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 04:53:41,273 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 04:53:41,273 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 04:53:41,273 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 04:53:41,273 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 04:53:41,274 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 04:53:41,274 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 04:53:41,275 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 04:53:41,275 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 04:53:41,282 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 04:53:41,282 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 04:53:41,283 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 04:53:41,283 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 04:53:41,283 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 04:53:41,283 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 04:53:41,284 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 04:53:41,284 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 04:53:41,284 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 04:53:41,284 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 04:53:41,284 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 04:53:41,284 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 04:53:41,284 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 04:53:41,284 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 04:53:41,285 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 04:53:41,285 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 04:53:41,285 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 04:53:41,285 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 04:53:41,285 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 04:53:41,285 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 04:53:41,285 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 04:53:41,285 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 04:53:41,286 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 04:53:41,286 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 04:53:41,286 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 04:53:41,286 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 04:53:41,286 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 04:53:41,286 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 04:53:41,286 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 04:53:41,286 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 04:53:41,287 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer 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 -> a6ab55767df3b26021df0e39ced39f80ee5a9fd9 [2018-12-02 04:53:41,305 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 04:53:41,314 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 04:53:41,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 04:53:41,317 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 04:53:41,318 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 04:53:41,318 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/../../sv-benchmarks/c/pthread/stack_longest_false-unreach-call.i [2018-12-02 04:53:41,357 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/data/030c85ba7/c14306f520ae49fc8783f0328d097a60/FLAG221165fe2 [2018-12-02 04:53:41,835 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 04:53:41,835 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/sv-benchmarks/c/pthread/stack_longest_false-unreach-call.i [2018-12-02 04:53:41,843 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/data/030c85ba7/c14306f520ae49fc8783f0328d097a60/FLAG221165fe2 [2018-12-02 04:53:41,852 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/data/030c85ba7/c14306f520ae49fc8783f0328d097a60 [2018-12-02 04:53:41,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 04:53:41,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 04:53:41,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 04:53:41,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 04:53:41,857 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 04:53:41,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:53:41" (1/1) ... [2018-12-02 04:53:41,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a6ee20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:53:41, skipping insertion in model container [2018-12-02 04:53:41,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:53:41" (1/1) ... [2018-12-02 04:53:41,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 04:53:41,890 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 04:53:42,148 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 04:53:42,183 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 04:53:42,213 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 04:53:42,292 INFO L195 MainTranslator]: Completed translation [2018-12-02 04:53:42,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:53:42 WrapperNode [2018-12-02 04:53:42,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 04:53:42,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 04:53:42,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 04:53:42,293 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 04:53:42,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:53:42" (1/1) ... [2018-12-02 04:53:42,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:53:42" (1/1) ... [2018-12-02 04:53:42,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 04:53:42,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 04:53:42,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 04:53:42,324 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 04:53:42,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:53:42" (1/1) ... [2018-12-02 04:53:42,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:53:42" (1/1) ... [2018-12-02 04:53:42,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:53:42" (1/1) ... [2018-12-02 04:53:42,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:53:42" (1/1) ... [2018-12-02 04:53:42,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:53:42" (1/1) ... [2018-12-02 04:53:42,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:53:42" (1/1) ... [2018-12-02 04:53:42,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:53:42" (1/1) ... [2018-12-02 04:53:42,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 04:53:42,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 04:53:42,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 04:53:42,344 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 04:53:42,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:53:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/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 [2018-12-02 04:53:42,377 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2018-12-02 04:53:42,377 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2018-12-02 04:53:42,377 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2018-12-02 04:53:42,377 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2018-12-02 04:53:42,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 04:53:42,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-02 04:53:42,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 04:53:42,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 04:53:42,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 04:53:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-12-02 04:53:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 04:53:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 04:53:42,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 04:53:42,378 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-02 04:53:42,633 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 04:53:42,634 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-12-02 04:53:42,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:53:42 BoogieIcfgContainer [2018-12-02 04:53:42,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 04:53:42,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 04:53:42,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 04:53:42,636 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 04:53:42,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:53:41" (1/3) ... [2018-12-02 04:53:42,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6e6dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:53:42, skipping insertion in model container [2018-12-02 04:53:42,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:53:42" (2/3) ... [2018-12-02 04:53:42,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6e6dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:53:42, skipping insertion in model container [2018-12-02 04:53:42,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:53:42" (3/3) ... [2018-12-02 04:53:42,638 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longest_false-unreach-call.i [2018-12-02 04:53:42,662 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,662 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,662 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,662 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,663 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,663 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,663 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,663 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,663 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,663 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,663 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,664 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,664 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,664 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,664 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,664 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,664 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,664 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,664 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,665 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,665 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,665 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,665 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,665 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,665 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,665 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,665 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,666 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,666 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,666 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,666 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,666 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,666 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,666 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,666 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,667 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,667 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,667 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,667 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,667 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,667 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,667 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,668 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,668 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,668 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,668 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,668 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,668 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,668 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,668 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,669 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,669 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,669 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,669 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,669 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,669 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,669 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,670 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,670 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,670 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,670 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,670 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,671 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,671 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,671 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,671 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,671 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,671 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,672 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,672 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,672 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,672 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,672 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,673 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,673 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,673 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,673 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,673 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,674 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,674 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,674 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,674 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,674 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,674 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,675 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,675 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,675 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,675 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,675 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,675 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,675 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,675 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,676 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,676 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,676 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,676 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,676 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,676 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,677 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,677 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,677 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,677 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,677 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,677 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,677 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,678 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,678 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,678 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,678 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,678 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,679 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,679 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,679 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,679 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,679 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,679 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,680 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,680 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,680 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,680 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,680 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,680 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,681 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,681 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,681 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,681 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,681 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:53:42,691 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-02 04:53:42,691 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 04:53:42,697 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-02 04:53:42,706 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-02 04:53:42,723 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 04:53:42,723 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 04:53:42,723 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 04:53:42,723 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 04:53:42,723 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 04:53:42,723 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 04:53:42,723 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 04:53:42,724 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 04:53:42,724 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 04:53:42,731 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 131places, 139 transitions [2018-12-02 04:53:42,867 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6506 states. [2018-12-02 04:53:42,869 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states. [2018-12-02 04:53:42,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 04:53:42,888 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:53:42,888 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] [2018-12-02 04:53:42,890 INFO L423 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:53:42,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:53:42,895 INFO L82 PathProgramCache]: Analyzing trace with hash 297050223, now seen corresponding path program 1 times [2018-12-02 04:53:42,896 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:53:42,896 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:53:42,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:42,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:53:42,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:53:43,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:53:43,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:53:43,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 04:53:43,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 04:53:43,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 04:53:43,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 04:53:43,097 INFO L87 Difference]: Start difference. First operand 6506 states. Second operand 3 states. [2018-12-02 04:53:43,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:53:43,192 INFO L93 Difference]: Finished difference Result 9854 states and 26353 transitions. [2018-12-02 04:53:43,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 04:53:43,194 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-12-02 04:53:43,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:53:43,228 INFO L225 Difference]: With dead ends: 9854 [2018-12-02 04:53:43,228 INFO L226 Difference]: Without dead ends: 9746 [2018-12-02 04:53:43,229 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 [2018-12-02 04:53:43,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9746 states. [2018-12-02 04:53:43,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9746 to 8276. [2018-12-02 04:53:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8276 states. [2018-12-02 04:53:43,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 22334 transitions. [2018-12-02 04:53:43,441 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 22334 transitions. Word has length 46 [2018-12-02 04:53:43,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:53:43,441 INFO L480 AbstractCegarLoop]: Abstraction has 8276 states and 22334 transitions. [2018-12-02 04:53:43,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 04:53:43,442 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 22334 transitions. [2018-12-02 04:53:43,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-02 04:53:43,445 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:53:43,445 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] [2018-12-02 04:53:43,445 INFO L423 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:53:43,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:53:43,446 INFO L82 PathProgramCache]: Analyzing trace with hash 2074449763, now seen corresponding path program 1 times [2018-12-02 04:53:43,446 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:53:43,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:53:43,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:43,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:53:43,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:53:43,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:53:43,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:53:43,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 04:53:43,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 04:53:43,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 04:53:43,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 04:53:43,499 INFO L87 Difference]: Start difference. First operand 8276 states and 22334 transitions. Second operand 3 states. [2018-12-02 04:53:43,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:53:43,562 INFO L93 Difference]: Finished difference Result 7697 states and 20469 transitions. [2018-12-02 04:53:43,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 04:53:43,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2018-12-02 04:53:43,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:53:43,583 INFO L225 Difference]: With dead ends: 7697 [2018-12-02 04:53:43,583 INFO L226 Difference]: Without dead ends: 7556 [2018-12-02 04:53:43,584 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 [2018-12-02 04:53:43,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7556 states. [2018-12-02 04:53:43,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7556 to 7328. [2018-12-02 04:53:43,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7328 states. [2018-12-02 04:53:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7328 states to 7328 states and 19608 transitions. [2018-12-02 04:53:43,778 INFO L78 Accepts]: Start accepts. Automaton has 7328 states and 19608 transitions. Word has length 50 [2018-12-02 04:53:43,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:53:43,779 INFO L480 AbstractCegarLoop]: Abstraction has 7328 states and 19608 transitions. [2018-12-02 04:53:43,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 04:53:43,779 INFO L276 IsEmpty]: Start isEmpty. Operand 7328 states and 19608 transitions. [2018-12-02 04:53:43,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-02 04:53:43,781 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:53:43,781 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, 1, 1, 1, 1, 1] [2018-12-02 04:53:43,781 INFO L423 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:53:43,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:53:43,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1770628852, now seen corresponding path program 1 times [2018-12-02 04:53:43,782 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:53:43,782 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:53:43,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:43,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:53:43,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:53:43,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:53:43,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:53:43,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 04:53:43,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 04:53:43,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 04:53:43,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 04:53:43,831 INFO L87 Difference]: Start difference. First operand 7328 states and 19608 transitions. Second operand 4 states. [2018-12-02 04:53:43,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:53:43,923 INFO L93 Difference]: Finished difference Result 10193 states and 27211 transitions. [2018-12-02 04:53:43,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 04:53:43,924 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2018-12-02 04:53:43,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:53:43,939 INFO L225 Difference]: With dead ends: 10193 [2018-12-02 04:53:43,939 INFO L226 Difference]: Without dead ends: 10193 [2018-12-02 04:53:43,940 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 04:53:43,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10193 states. [2018-12-02 04:53:44,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10193 to 7652. [2018-12-02 04:53:44,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7652 states. [2018-12-02 04:53:44,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7652 states to 7652 states and 20475 transitions. [2018-12-02 04:53:44,065 INFO L78 Accepts]: Start accepts. Automaton has 7652 states and 20475 transitions. Word has length 55 [2018-12-02 04:53:44,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:53:44,065 INFO L480 AbstractCegarLoop]: Abstraction has 7652 states and 20475 transitions. [2018-12-02 04:53:44,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 04:53:44,065 INFO L276 IsEmpty]: Start isEmpty. Operand 7652 states and 20475 transitions. [2018-12-02 04:53:44,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-02 04:53:44,069 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:53:44,069 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:53:44,069 INFO L423 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:53:44,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:53:44,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1052603674, now seen corresponding path program 1 times [2018-12-02 04:53:44,070 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:53:44,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:53:44,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:44,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:53:44,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:53:44,123 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:53:44,124 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:53:44,124 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 04:53:44,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:53:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:53:44,170 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:53:44,204 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:53:44,230 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 04:53:44,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-12-02 04:53:44,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 04:53:44,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 04:53:44,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-02 04:53:44,231 INFO L87 Difference]: Start difference. First operand 7652 states and 20475 transitions. Second operand 7 states. [2018-12-02 04:53:44,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:53:44,314 INFO L93 Difference]: Finished difference Result 11186 states and 29819 transitions. [2018-12-02 04:53:44,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 04:53:44,314 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2018-12-02 04:53:44,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:53:44,331 INFO L225 Difference]: With dead ends: 11186 [2018-12-02 04:53:44,331 INFO L226 Difference]: Without dead ends: 11186 [2018-12-02 04:53:44,332 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-12-02 04:53:44,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11186 states. [2018-12-02 04:53:44,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11186 to 9716. [2018-12-02 04:53:44,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9716 states. [2018-12-02 04:53:44,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9716 states to 9716 states and 26036 transitions. [2018-12-02 04:53:44,470 INFO L78 Accepts]: Start accepts. Automaton has 9716 states and 26036 transitions. Word has length 78 [2018-12-02 04:53:44,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:53:44,471 INFO L480 AbstractCegarLoop]: Abstraction has 9716 states and 26036 transitions. [2018-12-02 04:53:44,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 04:53:44,471 INFO L276 IsEmpty]: Start isEmpty. Operand 9716 states and 26036 transitions. [2018-12-02 04:53:44,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-12-02 04:53:44,475 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:53:44,476 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:53:44,476 INFO L423 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:53:44,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:53:44,476 INFO L82 PathProgramCache]: Analyzing trace with hash 925104354, now seen corresponding path program 1 times [2018-12-02 04:53:44,476 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:53:44,476 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:53:44,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:44,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:53:44,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:53:44,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:53:44,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:53:44,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 04:53:44,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 04:53:44,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 04:53:44,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 04:53:44,511 INFO L87 Difference]: Start difference. First operand 9716 states and 26036 transitions. Second operand 3 states. [2018-12-02 04:53:44,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:53:44,539 INFO L93 Difference]: Finished difference Result 4949 states and 12535 transitions. [2018-12-02 04:53:44,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 04:53:44,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2018-12-02 04:53:44,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:53:44,546 INFO L225 Difference]: With dead ends: 4949 [2018-12-02 04:53:44,546 INFO L226 Difference]: Without dead ends: 4949 [2018-12-02 04:53:44,546 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 04:53:44,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4949 states. [2018-12-02 04:53:44,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4949 to 4844. [2018-12-02 04:53:44,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4844 states. [2018-12-02 04:53:44,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4844 states to 4844 states and 12270 transitions. [2018-12-02 04:53:44,614 INFO L78 Accepts]: Start accepts. Automaton has 4844 states and 12270 transitions. Word has length 82 [2018-12-02 04:53:44,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:53:44,615 INFO L480 AbstractCegarLoop]: Abstraction has 4844 states and 12270 transitions. [2018-12-02 04:53:44,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 04:53:44,615 INFO L276 IsEmpty]: Start isEmpty. Operand 4844 states and 12270 transitions. [2018-12-02 04:53:44,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-02 04:53:44,619 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:53:44,619 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:53:44,620 INFO L423 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:53:44,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:53:44,620 INFO L82 PathProgramCache]: Analyzing trace with hash 466544654, now seen corresponding path program 1 times [2018-12-02 04:53:44,620 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:53:44,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:53:44,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:44,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:53:44,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:53:44,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:53:44,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:53:44,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 04:53:44,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 04:53:44,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 04:53:44,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 04:53:44,682 INFO L87 Difference]: Start difference. First operand 4844 states and 12270 transitions. Second operand 7 states. [2018-12-02 04:53:44,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:53:44,785 INFO L93 Difference]: Finished difference Result 6383 states and 16124 transitions. [2018-12-02 04:53:44,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 04:53:44,786 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2018-12-02 04:53:44,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:53:44,797 INFO L225 Difference]: With dead ends: 6383 [2018-12-02 04:53:44,797 INFO L226 Difference]: Without dead ends: 6383 [2018-12-02 04:53:44,797 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-12-02 04:53:44,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6383 states. [2018-12-02 04:53:44,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6383 to 5249. [2018-12-02 04:53:44,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5249 states. [2018-12-02 04:53:44,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 13264 transitions. [2018-12-02 04:53:44,877 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 13264 transitions. Word has length 83 [2018-12-02 04:53:44,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:53:44,877 INFO L480 AbstractCegarLoop]: Abstraction has 5249 states and 13264 transitions. [2018-12-02 04:53:44,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 04:53:44,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 13264 transitions. [2018-12-02 04:53:44,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-02 04:53:44,882 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:53:44,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:53:44,882 INFO L423 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:53:44,882 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:53:44,882 INFO L82 PathProgramCache]: Analyzing trace with hash 420051878, now seen corresponding path program 1 times [2018-12-02 04:53:44,883 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:53:44,883 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:53:44,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:44,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:53:44,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:53:45,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:53:45,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:53:45,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-12-02 04:53:45,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-02 04:53:45,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-02 04:53:45,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2018-12-02 04:53:45,910 INFO L87 Difference]: Start difference. First operand 5249 states and 13264 transitions. Second operand 18 states. [2018-12-02 04:53:46,779 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2018-12-02 04:53:47,279 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-12-02 04:53:47,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:53:47,985 INFO L93 Difference]: Finished difference Result 11875 states and 30174 transitions. [2018-12-02 04:53:47,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-12-02 04:53:47,986 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 93 [2018-12-02 04:53:47,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:53:48,001 INFO L225 Difference]: With dead ends: 11875 [2018-12-02 04:53:48,001 INFO L226 Difference]: Without dead ends: 11875 [2018-12-02 04:53:48,001 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=198, Invalid=858, Unknown=0, NotChecked=0, Total=1056 [2018-12-02 04:53:48,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11875 states. [2018-12-02 04:53:48,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11875 to 7443. [2018-12-02 04:53:48,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7443 states. [2018-12-02 04:53:48,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7443 states to 7443 states and 19054 transitions. [2018-12-02 04:53:48,099 INFO L78 Accepts]: Start accepts. Automaton has 7443 states and 19054 transitions. Word has length 93 [2018-12-02 04:53:48,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:53:48,100 INFO L480 AbstractCegarLoop]: Abstraction has 7443 states and 19054 transitions. [2018-12-02 04:53:48,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-02 04:53:48,100 INFO L276 IsEmpty]: Start isEmpty. Operand 7443 states and 19054 transitions. [2018-12-02 04:53:48,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-02 04:53:48,105 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:53:48,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:53:48,106 INFO L423 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:53:48,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:53:48,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1199008230, now seen corresponding path program 2 times [2018-12-02 04:53:48,106 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:53:48,106 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:53:48,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:48,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:53:48,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:53:48,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:53:48,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:53:48,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 04:53:48,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 04:53:48,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 04:53:48,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2018-12-02 04:53:48,581 INFO L87 Difference]: Start difference. First operand 7443 states and 19054 transitions. Second operand 21 states. [2018-12-02 04:53:49,636 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-12-02 04:53:50,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:53:50,298 INFO L93 Difference]: Finished difference Result 14175 states and 36335 transitions. [2018-12-02 04:53:50,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-02 04:53:50,299 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 93 [2018-12-02 04:53:50,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:53:50,316 INFO L225 Difference]: With dead ends: 14175 [2018-12-02 04:53:50,316 INFO L226 Difference]: Without dead ends: 14175 [2018-12-02 04:53:50,317 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=248, Invalid=874, Unknown=0, NotChecked=0, Total=1122 [2018-12-02 04:53:50,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14175 states. [2018-12-02 04:53:50,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14175 to 7103. [2018-12-02 04:53:50,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7103 states. [2018-12-02 04:53:50,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7103 states to 7103 states and 18097 transitions. [2018-12-02 04:53:50,415 INFO L78 Accepts]: Start accepts. Automaton has 7103 states and 18097 transitions. Word has length 93 [2018-12-02 04:53:50,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:53:50,416 INFO L480 AbstractCegarLoop]: Abstraction has 7103 states and 18097 transitions. [2018-12-02 04:53:50,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 04:53:50,416 INFO L276 IsEmpty]: Start isEmpty. Operand 7103 states and 18097 transitions. [2018-12-02 04:53:50,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-12-02 04:53:50,421 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:53:50,421 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:53:50,421 INFO L423 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:53:50,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:53:50,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1376724643, now seen corresponding path program 2 times [2018-12-02 04:53:50,421 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:53:50,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:53:50,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:50,422 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 04:53:50,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:53:50,479 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:53:50,479 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:53:50,479 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 04:53:50,486 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-02 04:53:50,513 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-02 04:53:50,514 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 04:53:50,516 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:53:50,538 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:53:50,554 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 04:53:50,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-12-02 04:53:50,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 04:53:50,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 04:53:50,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-12-02 04:53:50,555 INFO L87 Difference]: Start difference. First operand 7103 states and 18097 transitions. Second operand 9 states. [2018-12-02 04:53:50,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:53:50,632 INFO L93 Difference]: Finished difference Result 9956 states and 25242 transitions. [2018-12-02 04:53:50,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 04:53:50,632 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2018-12-02 04:53:50,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:53:50,639 INFO L225 Difference]: With dead ends: 9956 [2018-12-02 04:53:50,639 INFO L226 Difference]: Without dead ends: 9956 [2018-12-02 04:53:50,640 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2018-12-02 04:53:50,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9956 states. [2018-12-02 04:53:50,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9956 to 8636. [2018-12-02 04:53:50,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8636 states. [2018-12-02 04:53:50,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8636 states to 8636 states and 22048 transitions. [2018-12-02 04:53:50,717 INFO L78 Accepts]: Start accepts. Automaton has 8636 states and 22048 transitions. Word has length 110 [2018-12-02 04:53:50,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:53:50,717 INFO L480 AbstractCegarLoop]: Abstraction has 8636 states and 22048 transitions. [2018-12-02 04:53:50,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 04:53:50,717 INFO L276 IsEmpty]: Start isEmpty. Operand 8636 states and 22048 transitions. [2018-12-02 04:53:50,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-12-02 04:53:50,722 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:53:50,723 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:53:50,723 INFO L423 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:53:50,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:53:50,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1228292771, now seen corresponding path program 1 times [2018-12-02 04:53:50,723 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:53:50,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:53:50,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:50,725 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 04:53:50,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:53:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:53:50,796 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:53:50,796 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 04:53:50,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:53:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:53:50,828 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:53:50,841 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-02 04:53:50,857 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 04:53:50,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2018-12-02 04:53:50,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 04:53:50,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 04:53:50,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-02 04:53:50,858 INFO L87 Difference]: Start difference. First operand 8636 states and 22048 transitions. Second operand 8 states. [2018-12-02 04:53:50,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:53:50,964 INFO L93 Difference]: Finished difference Result 11783 states and 29878 transitions. [2018-12-02 04:53:50,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-02 04:53:50,965 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 115 [2018-12-02 04:53:50,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:53:50,975 INFO L225 Difference]: With dead ends: 11783 [2018-12-02 04:53:50,975 INFO L226 Difference]: Without dead ends: 11783 [2018-12-02 04:53:50,975 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2018-12-02 04:53:50,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11783 states. [2018-12-02 04:53:51,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11783 to 9566. [2018-12-02 04:53:51,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9566 states. [2018-12-02 04:53:51,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9566 states to 9566 states and 24603 transitions. [2018-12-02 04:53:51,082 INFO L78 Accepts]: Start accepts. Automaton has 9566 states and 24603 transitions. Word has length 115 [2018-12-02 04:53:51,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:53:51,082 INFO L480 AbstractCegarLoop]: Abstraction has 9566 states and 24603 transitions. [2018-12-02 04:53:51,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 04:53:51,082 INFO L276 IsEmpty]: Start isEmpty. Operand 9566 states and 24603 transitions. [2018-12-02 04:53:51,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-12-02 04:53:51,088 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:53:51,089 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:53:51,089 INFO L423 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:53:51,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:53:51,089 INFO L82 PathProgramCache]: Analyzing trace with hash 646818885, now seen corresponding path program 1 times [2018-12-02 04:53:51,089 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:53:51,089 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:53:51,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:51,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:53:51,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:53:51,211 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:53:51,212 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:53:51,212 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 04:53:51,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:53:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:53:51,289 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:53:51,327 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:53:51,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 04:53:51,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 11 [2018-12-02 04:53:51,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 04:53:51,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 04:53:51,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-12-02 04:53:51,343 INFO L87 Difference]: Start difference. First operand 9566 states and 24603 transitions. Second operand 11 states. [2018-12-02 04:53:51,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:53:51,472 INFO L93 Difference]: Finished difference Result 11693 states and 29799 transitions. [2018-12-02 04:53:51,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 04:53:51,472 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 115 [2018-12-02 04:53:51,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:53:51,481 INFO L225 Difference]: With dead ends: 11693 [2018-12-02 04:53:51,481 INFO L226 Difference]: Without dead ends: 11693 [2018-12-02 04:53:51,481 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-12-02 04:53:51,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11693 states. [2018-12-02 04:53:51,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11693 to 9695. [2018-12-02 04:53:51,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9695 states. [2018-12-02 04:53:51,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9695 states to 9695 states and 24960 transitions. [2018-12-02 04:53:51,572 INFO L78 Accepts]: Start accepts. Automaton has 9695 states and 24960 transitions. Word has length 115 [2018-12-02 04:53:51,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:53:51,572 INFO L480 AbstractCegarLoop]: Abstraction has 9695 states and 24960 transitions. [2018-12-02 04:53:51,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 04:53:51,572 INFO L276 IsEmpty]: Start isEmpty. Operand 9695 states and 24960 transitions. [2018-12-02 04:53:51,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-12-02 04:53:51,577 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:53:51,577 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:53:51,577 INFO L423 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:53:51,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:53:51,578 INFO L82 PathProgramCache]: Analyzing trace with hash -353817424, now seen corresponding path program 1 times [2018-12-02 04:53:51,578 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 04:53:51,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 04:53:51,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:51,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:53:51,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:53:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 04:53:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 04:53:51,647 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 04:53:51,700 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-02 04:53:51,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:53:51 BasicIcfg [2018-12-02 04:53:51,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 04:53:51,701 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 04:53:51,701 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 04:53:51,701 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 04:53:51,702 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:53:42" (3/4) ... [2018-12-02 04:53:51,703 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 04:53:51,756 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0f076770-43f9-4824-bc93-37ecf7b33e68/bin-2019/uautomizer/witness.graphml [2018-12-02 04:53:51,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 04:53:51,756 INFO L168 Benchmark]: Toolchain (without parser) took 9902.79 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 478.7 MB). Free memory was 957.1 MB in the beginning and 1.2 GB in the end (delta: -195.0 MB). Peak memory consumption was 283.7 MB. Max. memory is 11.5 GB. [2018-12-02 04:53:51,757 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:53:51,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -113.3 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. [2018-12-02 04:53:51,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.46 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-02 04:53:51,757 INFO L168 Benchmark]: Boogie Preprocessor took 19.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:53:51,757 INFO L168 Benchmark]: RCFGBuilder took 290.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2018-12-02 04:53:51,758 INFO L168 Benchmark]: TraceAbstraction took 9066.43 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 357.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -147.8 MB). Peak memory consumption was 209.2 MB. Max. memory is 11.5 GB. [2018-12-02 04:53:51,758 INFO L168 Benchmark]: Witness Printer took 54.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-12-02 04:53:51,759 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 437.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -113.3 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.46 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 290.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9066.43 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 357.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -147.8 MB). Peak memory consumption was 209.2 MB. Max. memory is 11.5 GB. * Witness Printer took 54.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 920]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L914] -1 static int top=0; VAL [top=0] [L915] -1 static unsigned int arr[(800)]; VAL [arr={4294967305:0}, top=0] [L916] -1 pthread_mutex_t m; VAL [arr={4294967305:0}, m={4294967306:0}, top=0] [L917] -1 _Bool flag=(0); VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L999] -1 pthread_t id1, id2; VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L1001] FCALL, FORK -1 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L968] 0 int i; VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L969] 0 unsigned int tmp; VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L970] 0 i=0 VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L970] COND TRUE 0 i<(800) VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L973] 0 tmp = __VERIFIER_nondet_uint() VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L1002] FCALL, FORK -1 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L984] 1 int i; VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L985] 1 i=0 VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L985] COND TRUE 1 i<(800) VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L940] COND FALSE 0 !(top==(800)) VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L932] 0 return top; VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L947] 0 stack[get_top()] = x VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=0] [L924] 0 top++ VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=1] [L950] 0 return 0; VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=1] [L975] COND FALSE 0 !(push(arr,tmp)==(-1)) VAL [arr={4294967305:0}, flag=0, m={4294967306:0}, top=1] [L977] 0 flag=(1) VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=1] [L988] COND TRUE 1 \read(flag) VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=1] [L932] 1 return top; VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=1] [L954] COND FALSE 1 !(get_top()==0) VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=1] [L928] 1 top-- VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=0] [L932] 1 return top; VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=0] [L962] EXPR 1 stack[get_top()] VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=0] [L962] 1 return stack[get_top()]; VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=0] [L990] COND FALSE 1 !(!(pop(arr)!=(-2))) VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=0] [L985] 1 i++ VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=0] [L985] COND TRUE 1 i<(800) VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=0] [L988] COND TRUE 1 \read(flag) VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=0] [L932] 1 return top; VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=0] [L954] COND TRUE 1 get_top()==0 VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=0] [L957] 1 return (-2); VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=0] [L990] COND TRUE 1 !(pop(arr)!=(-2)) VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=0] [L920] 1 __VERIFIER_error() VAL [arr={4294967305:0}, flag=1, m={4294967306:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 221 locations, 4 error locations. UNSAFE Result, 8.9s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 4.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2073 SDtfs, 3799 SDslu, 10122 SDs, 0 SdLazy, 1732 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 564 GetRequests, 436 SyntacticMatches, 5 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9716occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 23987 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1455 NumberOfCodeBlocks, 1455 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1323 ConstructedInterpolants, 0 QuantifiedInterpolants, 921201 SizeOfPredicates, 20 NumberOfNonLiveVariables, 949 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 72/242 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...