./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack_longer_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_195dfafe-5d6f-4f94-9eae-434a7bc592c1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/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 88d184f750ae7f3761c058885cf1dc5c9c85a913 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-12-08 09:12:39,240 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 09:12:39,241 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 09:12:39,248 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 09:12:39,248 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 09:12:39,249 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 09:12:39,249 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 09:12:39,251 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 09:12:39,252 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 09:12:39,252 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 09:12:39,253 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 09:12:39,253 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 09:12:39,253 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 09:12:39,254 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 09:12:39,255 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 09:12:39,256 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 09:12:39,256 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 09:12:39,257 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 09:12:39,258 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 09:12:39,259 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 09:12:39,260 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 09:12:39,260 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 09:12:39,261 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 09:12:39,261 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 09:12:39,262 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 09:12:39,262 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 09:12:39,262 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 09:12:39,263 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 09:12:39,263 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 09:12:39,264 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 09:12:39,264 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 09:12:39,264 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 09:12:39,264 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 09:12:39,264 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 09:12:39,265 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 09:12:39,265 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 09:12:39,265 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 09:12:39,272 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 09:12:39,272 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 09:12:39,273 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 09:12:39,273 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 09:12:39,273 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 09:12:39,273 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 09:12:39,274 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 09:12:39,274 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 09:12:39,274 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 09:12:39,274 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 09:12:39,274 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 09:12:39,274 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 09:12:39,274 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 09:12:39,274 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 09:12:39,274 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 09:12:39,274 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 09:12:39,274 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 09:12:39,275 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 09:12:39,275 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 09:12:39,275 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 09:12:39,275 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 09:12:39,275 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 09:12:39,275 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 09:12:39,275 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 09:12:39,275 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 09:12:39,275 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 09:12:39,275 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 09:12:39,275 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 09:12:39,276 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 09:12:39,276 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 09:12:39,276 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_195dfafe-5d6f-4f94-9eae-434a7bc592c1/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 -> 88d184f750ae7f3761c058885cf1dc5c9c85a913 [2018-12-08 09:12:39,293 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 09:12:39,301 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 09:12:39,303 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 09:12:39,304 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 09:12:39,304 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 09:12:39,304 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/bin-2019/uautomizer/../../sv-benchmarks/c/pthread/stack_longer_false-unreach-call.i [2018-12-08 09:12:39,341 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/bin-2019/uautomizer/data/94e3230ee/c40302e3f414456e8e4884d20fd46aaa/FLAG23ceab1d9 [2018-12-08 09:12:39,841 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 09:12:39,841 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/sv-benchmarks/c/pthread/stack_longer_false-unreach-call.i [2018-12-08 09:12:39,848 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/bin-2019/uautomizer/data/94e3230ee/c40302e3f414456e8e4884d20fd46aaa/FLAG23ceab1d9 [2018-12-08 09:12:39,857 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/bin-2019/uautomizer/data/94e3230ee/c40302e3f414456e8e4884d20fd46aaa [2018-12-08 09:12:39,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 09:12:39,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 09:12:39,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 09:12:39,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 09:12:39,863 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 09:12:39,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:12:39" (1/1) ... [2018-12-08 09:12:39,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0bf627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:12:39, skipping insertion in model container [2018-12-08 09:12:39,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:12:39" (1/1) ... [2018-12-08 09:12:39,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 09:12:39,890 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 09:12:40,107 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:12:40,167 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 09:12:40,195 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:12:40,274 INFO L195 MainTranslator]: Completed translation [2018-12-08 09:12:40,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:12:40 WrapperNode [2018-12-08 09:12:40,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 09:12:40,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 09:12:40,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 09:12:40,275 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 09:12:40,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:12:40" (1/1) ... [2018-12-08 09:12:40,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:12:40" (1/1) ... [2018-12-08 09:12:40,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 09:12:40,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 09:12:40,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 09:12:40,305 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 09:12:40,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:12:40" (1/1) ... [2018-12-08 09:12:40,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:12:40" (1/1) ... [2018-12-08 09:12:40,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:12:40" (1/1) ... [2018-12-08 09:12:40,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:12:40" (1/1) ... [2018-12-08 09:12:40,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:12:40" (1/1) ... [2018-12-08 09:12:40,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:12:40" (1/1) ... [2018-12-08 09:12:40,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:12:40" (1/1) ... [2018-12-08 09:12:40,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 09:12:40,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 09:12:40,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 09:12:40,323 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 09:12:40,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:12:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/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 [2018-12-08 09:12:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2018-12-08 09:12:40,355 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2018-12-08 09:12:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2018-12-08 09:12:40,355 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2018-12-08 09:12:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 09:12:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-08 09:12:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 09:12:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 09:12:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 09:12:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-12-08 09:12:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 09:12:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 09:12:40,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 09:12:40,356 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-08 09:12:40,578 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 09:12:40,579 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-12-08 09:12:40,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:12:40 BoogieIcfgContainer [2018-12-08 09:12:40,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 09:12:40,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 09:12:40,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 09:12:40,581 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 09:12:40,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 09:12:39" (1/3) ... [2018-12-08 09:12:40,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38402cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:12:40, skipping insertion in model container [2018-12-08 09:12:40,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:12:40" (2/3) ... [2018-12-08 09:12:40,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38402cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:12:40, skipping insertion in model container [2018-12-08 09:12:40,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:12:40" (3/3) ... [2018-12-08 09:12:40,583 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer_false-unreach-call.i [2018-12-08 09:12:40,604 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,604 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,605 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,605 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,605 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,605 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,605 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,605 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,605 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,605 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,605 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,605 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,606 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,606 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,606 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,606 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,606 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,606 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,606 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,606 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,606 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,606 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,606 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,607 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,607 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,607 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,607 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,607 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,607 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,607 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,607 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,607 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,607 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,607 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,607 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,608 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,608 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,608 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,608 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,608 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,608 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,608 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,608 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,608 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,608 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,608 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,609 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,609 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,609 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,609 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,609 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,609 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,609 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,609 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,609 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,609 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,610 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,610 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,610 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,610 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,610 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,610 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,610 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,611 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,611 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,611 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,611 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,611 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,611 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,611 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,611 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,611 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,612 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,612 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,613 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,613 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,613 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,613 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,613 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,613 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,613 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,613 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,613 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,614 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,614 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,614 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,614 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,614 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,614 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,614 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,614 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,614 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,614 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,615 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,615 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,615 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,615 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,615 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,615 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,615 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,615 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,615 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,616 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,616 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,616 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,616 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,616 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,616 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,616 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,616 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,616 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,617 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,617 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,617 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,617 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,617 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,617 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,617 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,617 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,617 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,617 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,618 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:12:40,630 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-08 09:12:40,630 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 09:12:40,635 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-08 09:12:40,645 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-08 09:12:40,659 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 09:12:40,659 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 09:12:40,659 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 09:12:40,659 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 09:12:40,659 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 09:12:40,660 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 09:12:40,660 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 09:12:40,660 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 09:12:40,660 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 09:12:40,666 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 131places, 139 transitions [2018-12-08 09:12:40,790 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6506 states. [2018-12-08 09:12:40,791 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states. [2018-12-08 09:12:40,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 09:12:40,806 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:12:40,806 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] [2018-12-08 09:12:40,808 INFO L423 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:12:40,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:12:40,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1331807669, now seen corresponding path program 1 times [2018-12-08 09:12:40,812 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:12:40,813 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:12:40,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:40,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:12:40,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:12:40,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:12:40,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:12:40,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 09:12:40,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 09:12:40,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 09:12:40,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 09:12:40,979 INFO L87 Difference]: Start difference. First operand 6506 states. Second operand 3 states. [2018-12-08 09:12:41,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:12:41,093 INFO L93 Difference]: Finished difference Result 9854 states and 26353 transitions. [2018-12-08 09:12:41,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 09:12:41,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-12-08 09:12:41,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:12:41,129 INFO L225 Difference]: With dead ends: 9854 [2018-12-08 09:12:41,129 INFO L226 Difference]: Without dead ends: 9746 [2018-12-08 09:12:41,130 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 [2018-12-08 09:12:41,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9746 states. [2018-12-08 09:12:41,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9746 to 8276. [2018-12-08 09:12:41,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8276 states. [2018-12-08 09:12:41,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 22334 transitions. [2018-12-08 09:12:41,349 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 22334 transitions. Word has length 46 [2018-12-08 09:12:41,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:12:41,349 INFO L480 AbstractCegarLoop]: Abstraction has 8276 states and 22334 transitions. [2018-12-08 09:12:41,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 09:12:41,349 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 22334 transitions. [2018-12-08 09:12:41,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-08 09:12:41,353 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:12:41,353 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] [2018-12-08 09:12:41,353 INFO L423 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:12:41,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:12:41,353 INFO L82 PathProgramCache]: Analyzing trace with hash 650392225, now seen corresponding path program 1 times [2018-12-08 09:12:41,354 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:12:41,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:12:41,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:41,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:12:41,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:12:41,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:12:41,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:12:41,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 09:12:41,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 09:12:41,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 09:12:41,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 09:12:41,407 INFO L87 Difference]: Start difference. First operand 8276 states and 22334 transitions. Second operand 3 states. [2018-12-08 09:12:41,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:12:41,457 INFO L93 Difference]: Finished difference Result 7697 states and 20469 transitions. [2018-12-08 09:12:41,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 09:12:41,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2018-12-08 09:12:41,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:12:41,474 INFO L225 Difference]: With dead ends: 7697 [2018-12-08 09:12:41,474 INFO L226 Difference]: Without dead ends: 7556 [2018-12-08 09:12:41,475 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 [2018-12-08 09:12:41,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7556 states. [2018-12-08 09:12:41,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7556 to 7328. [2018-12-08 09:12:41,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7328 states. [2018-12-08 09:12:41,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7328 states to 7328 states and 19608 transitions. [2018-12-08 09:12:41,621 INFO L78 Accepts]: Start accepts. Automaton has 7328 states and 19608 transitions. Word has length 50 [2018-12-08 09:12:41,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:12:41,621 INFO L480 AbstractCegarLoop]: Abstraction has 7328 states and 19608 transitions. [2018-12-08 09:12:41,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 09:12:41,622 INFO L276 IsEmpty]: Start isEmpty. Operand 7328 states and 19608 transitions. [2018-12-08 09:12:41,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-08 09:12:41,623 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:12:41,623 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] [2018-12-08 09:12:41,624 INFO L423 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:12:41,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:12:41,624 INFO L82 PathProgramCache]: Analyzing trace with hash -2124015952, now seen corresponding path program 1 times [2018-12-08 09:12:41,624 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:12:41,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:12:41,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:41,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:12:41,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:12:41,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:12:41,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:12:41,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 09:12:41,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 09:12:41,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 09:12:41,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 09:12:41,656 INFO L87 Difference]: Start difference. First operand 7328 states and 19608 transitions. Second operand 4 states. [2018-12-08 09:12:41,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:12:41,721 INFO L93 Difference]: Finished difference Result 10193 states and 27211 transitions. [2018-12-08 09:12:41,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 09:12:41,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2018-12-08 09:12:41,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:12:41,739 INFO L225 Difference]: With dead ends: 10193 [2018-12-08 09:12:41,739 INFO L226 Difference]: Without dead ends: 10193 [2018-12-08 09:12:41,740 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 [2018-12-08 09:12:41,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10193 states. [2018-12-08 09:12:41,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10193 to 7652. [2018-12-08 09:12:41,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7652 states. [2018-12-08 09:12:41,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7652 states to 7652 states and 20475 transitions. [2018-12-08 09:12:41,850 INFO L78 Accepts]: Start accepts. Automaton has 7652 states and 20475 transitions. Word has length 55 [2018-12-08 09:12:41,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:12:41,850 INFO L480 AbstractCegarLoop]: Abstraction has 7652 states and 20475 transitions. [2018-12-08 09:12:41,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 09:12:41,851 INFO L276 IsEmpty]: Start isEmpty. Operand 7652 states and 20475 transitions. [2018-12-08 09:12:41,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-08 09:12:41,854 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:12:41,854 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] [2018-12-08 09:12:41,855 INFO L423 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:12:41,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:12:41,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1863469886, now seen corresponding path program 1 times [2018-12-08 09:12:41,855 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:12:41,855 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:12:41,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:41,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:12:41,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:12:41,912 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:12:41,912 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 09:12:41,912 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/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 [2018-12-08 09:12:41,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:12:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:12:41,964 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:12:42,004 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:12:42,024 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 09:12:42,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-12-08 09:12:42,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 09:12:42,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 09:12:42,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:12:42,025 INFO L87 Difference]: Start difference. First operand 7652 states and 20475 transitions. Second operand 7 states. [2018-12-08 09:12:42,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:12:42,099 INFO L93 Difference]: Finished difference Result 11186 states and 29819 transitions. [2018-12-08 09:12:42,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 09:12:42,099 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2018-12-08 09:12:42,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:12:42,119 INFO L225 Difference]: With dead ends: 11186 [2018-12-08 09:12:42,119 INFO L226 Difference]: Without dead ends: 11186 [2018-12-08 09:12:42,120 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 [2018-12-08 09:12:42,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11186 states. [2018-12-08 09:12:42,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11186 to 9716. [2018-12-08 09:12:42,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9716 states. [2018-12-08 09:12:42,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9716 states to 9716 states and 26036 transitions. [2018-12-08 09:12:42,262 INFO L78 Accepts]: Start accepts. Automaton has 9716 states and 26036 transitions. Word has length 78 [2018-12-08 09:12:42,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:12:42,262 INFO L480 AbstractCegarLoop]: Abstraction has 9716 states and 26036 transitions. [2018-12-08 09:12:42,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 09:12:42,262 INFO L276 IsEmpty]: Start isEmpty. Operand 9716 states and 26036 transitions. [2018-12-08 09:12:42,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-12-08 09:12:42,267 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:12:42,267 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] [2018-12-08 09:12:42,267 INFO L423 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:12:42,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:12:42,267 INFO L82 PathProgramCache]: Analyzing trace with hash -598780544, now seen corresponding path program 1 times [2018-12-08 09:12:42,267 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:12:42,267 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:12:42,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:42,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:12:42,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:12:42,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:12:42,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:12:42,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 09:12:42,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 09:12:42,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 09:12:42,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 09:12:42,304 INFO L87 Difference]: Start difference. First operand 9716 states and 26036 transitions. Second operand 3 states. [2018-12-08 09:12:42,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:12:42,325 INFO L93 Difference]: Finished difference Result 4949 states and 12535 transitions. [2018-12-08 09:12:42,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 09:12:42,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2018-12-08 09:12:42,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:12:42,331 INFO L225 Difference]: With dead ends: 4949 [2018-12-08 09:12:42,331 INFO L226 Difference]: Without dead ends: 4949 [2018-12-08 09:12:42,331 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 [2018-12-08 09:12:42,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4949 states. [2018-12-08 09:12:42,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4949 to 4844. [2018-12-08 09:12:42,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4844 states. [2018-12-08 09:12:42,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4844 states to 4844 states and 12270 transitions. [2018-12-08 09:12:42,391 INFO L78 Accepts]: Start accepts. Automaton has 4844 states and 12270 transitions. Word has length 82 [2018-12-08 09:12:42,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:12:42,391 INFO L480 AbstractCegarLoop]: Abstraction has 4844 states and 12270 transitions. [2018-12-08 09:12:42,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 09:12:42,392 INFO L276 IsEmpty]: Start isEmpty. Operand 4844 states and 12270 transitions. [2018-12-08 09:12:42,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-08 09:12:42,396 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:12:42,396 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] [2018-12-08 09:12:42,396 INFO L423 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:12:42,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:12:42,396 INFO L82 PathProgramCache]: Analyzing trace with hash 675060464, now seen corresponding path program 1 times [2018-12-08 09:12:42,396 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:12:42,396 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:12:42,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:42,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:12:42,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:12:42,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:12:42,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:12:42,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 09:12:42,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 09:12:42,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 09:12:42,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:12:42,460 INFO L87 Difference]: Start difference. First operand 4844 states and 12270 transitions. Second operand 7 states. [2018-12-08 09:12:42,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:12:42,550 INFO L93 Difference]: Finished difference Result 6383 states and 16124 transitions. [2018-12-08 09:12:42,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 09:12:42,550 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2018-12-08 09:12:42,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:12:42,556 INFO L225 Difference]: With dead ends: 6383 [2018-12-08 09:12:42,557 INFO L226 Difference]: Without dead ends: 6383 [2018-12-08 09:12:42,557 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 [2018-12-08 09:12:42,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6383 states. [2018-12-08 09:12:42,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6383 to 5249. [2018-12-08 09:12:42,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5249 states. [2018-12-08 09:12:42,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 13264 transitions. [2018-12-08 09:12:42,644 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 13264 transitions. Word has length 83 [2018-12-08 09:12:42,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:12:42,644 INFO L480 AbstractCegarLoop]: Abstraction has 5249 states and 13264 transitions. [2018-12-08 09:12:42,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 09:12:42,644 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 13264 transitions. [2018-12-08 09:12:42,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 09:12:42,648 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:12:42,648 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] [2018-12-08 09:12:42,648 INFO L423 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:12:42,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:12:42,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1218020344, now seen corresponding path program 1 times [2018-12-08 09:12:42,649 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:12:42,649 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:12:42,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:42,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:12:42,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:12:43,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:12:43,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:12:43,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-12-08 09:12:43,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-08 09:12:43,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-08 09:12:43,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2018-12-08 09:12:43,772 INFO L87 Difference]: Start difference. First operand 5249 states and 13264 transitions. Second operand 18 states. [2018-12-08 09:12:44,651 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2018-12-08 09:12:45,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:12:45,722 INFO L93 Difference]: Finished difference Result 11875 states and 30174 transitions. [2018-12-08 09:12:45,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-12-08 09:12:45,723 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 93 [2018-12-08 09:12:45,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:12:45,732 INFO L225 Difference]: With dead ends: 11875 [2018-12-08 09:12:45,732 INFO L226 Difference]: Without dead ends: 11875 [2018-12-08 09:12:45,732 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 8 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=198, Invalid=858, Unknown=0, NotChecked=0, Total=1056 [2018-12-08 09:12:45,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11875 states. [2018-12-08 09:12:45,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11875 to 7443. [2018-12-08 09:12:45,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7443 states. [2018-12-08 09:12:45,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7443 states to 7443 states and 19054 transitions. [2018-12-08 09:12:45,812 INFO L78 Accepts]: Start accepts. Automaton has 7443 states and 19054 transitions. Word has length 93 [2018-12-08 09:12:45,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:12:45,813 INFO L480 AbstractCegarLoop]: Abstraction has 7443 states and 19054 transitions. [2018-12-08 09:12:45,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-08 09:12:45,813 INFO L276 IsEmpty]: Start isEmpty. Operand 7443 states and 19054 transitions. [2018-12-08 09:12:45,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 09:12:45,817 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:12:45,817 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] [2018-12-08 09:12:45,817 INFO L423 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:12:45,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:12:45,817 INFO L82 PathProgramCache]: Analyzing trace with hash 2057552392, now seen corresponding path program 2 times [2018-12-08 09:12:45,817 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:12:45,817 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:12:45,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:45,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:12:45,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:12:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:12:46,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:12:46,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 09:12:46,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 09:12:46,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 09:12:46,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2018-12-08 09:12:46,229 INFO L87 Difference]: Start difference. First operand 7443 states and 19054 transitions. Second operand 21 states. [2018-12-08 09:12:46,958 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2018-12-08 09:12:48,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:12:48,022 INFO L93 Difference]: Finished difference Result 14175 states and 36335 transitions. [2018-12-08 09:12:48,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-08 09:12:48,022 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 93 [2018-12-08 09:12:48,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:12:48,033 INFO L225 Difference]: With dead ends: 14175 [2018-12-08 09:12:48,033 INFO L226 Difference]: Without dead ends: 14175 [2018-12-08 09:12:48,033 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=248, Invalid=874, Unknown=0, NotChecked=0, Total=1122 [2018-12-08 09:12:48,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14175 states. [2018-12-08 09:12:48,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14175 to 7103. [2018-12-08 09:12:48,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7103 states. [2018-12-08 09:12:48,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7103 states to 7103 states and 18097 transitions. [2018-12-08 09:12:48,118 INFO L78 Accepts]: Start accepts. Automaton has 7103 states and 18097 transitions. Word has length 93 [2018-12-08 09:12:48,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:12:48,118 INFO L480 AbstractCegarLoop]: Abstraction has 7103 states and 18097 transitions. [2018-12-08 09:12:48,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 09:12:48,118 INFO L276 IsEmpty]: Start isEmpty. Operand 7103 states and 18097 transitions. [2018-12-08 09:12:48,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-12-08 09:12:48,122 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:12:48,122 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] [2018-12-08 09:12:48,123 INFO L423 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:12:48,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:12:48,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1004694727, now seen corresponding path program 2 times [2018-12-08 09:12:48,123 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:12:48,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:12:48,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:48,124 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 09:12:48,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:12:48,188 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:12:48,188 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 09:12:48,188 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/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 [2018-12-08 09:12:48,199 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-08 09:12:48,228 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 09:12:48,229 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 09:12:48,232 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:12:48,254 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:12:48,278 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 09:12:48,278 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-12-08 09:12:48,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 09:12:48,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 09:12:48,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-12-08 09:12:48,279 INFO L87 Difference]: Start difference. First operand 7103 states and 18097 transitions. Second operand 9 states. [2018-12-08 09:12:48,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:12:48,348 INFO L93 Difference]: Finished difference Result 9956 states and 25242 transitions. [2018-12-08 09:12:48,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 09:12:48,348 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2018-12-08 09:12:48,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:12:48,356 INFO L225 Difference]: With dead ends: 9956 [2018-12-08 09:12:48,356 INFO L226 Difference]: Without dead ends: 9956 [2018-12-08 09:12:48,356 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 [2018-12-08 09:12:48,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9956 states. [2018-12-08 09:12:48,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9956 to 8636. [2018-12-08 09:12:48,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8636 states. [2018-12-08 09:12:48,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8636 states to 8636 states and 22048 transitions. [2018-12-08 09:12:48,436 INFO L78 Accepts]: Start accepts. Automaton has 8636 states and 22048 transitions. Word has length 110 [2018-12-08 09:12:48,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:12:48,437 INFO L480 AbstractCegarLoop]: Abstraction has 8636 states and 22048 transitions. [2018-12-08 09:12:48,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 09:12:48,437 INFO L276 IsEmpty]: Start isEmpty. Operand 8636 states and 22048 transitions. [2018-12-08 09:12:48,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-12-08 09:12:48,442 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:12:48,442 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] [2018-12-08 09:12:48,442 INFO L423 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:12:48,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:12:48,442 INFO L82 PathProgramCache]: Analyzing trace with hash -396138433, now seen corresponding path program 1 times [2018-12-08 09:12:48,442 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:12:48,442 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:12:48,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:48,444 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 09:12:48,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:12:48,507 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:12:48,507 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 09:12:48,507 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/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 [2018-12-08 09:12:48,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:12:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:12:48,545 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:12:48,580 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-08 09:12:48,605 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 09:12:48,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2018-12-08 09:12:48,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 09:12:48,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 09:12:48,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-08 09:12:48,606 INFO L87 Difference]: Start difference. First operand 8636 states and 22048 transitions. Second operand 8 states. [2018-12-08 09:12:48,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:12:48,701 INFO L93 Difference]: Finished difference Result 11783 states and 29878 transitions. [2018-12-08 09:12:48,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 09:12:48,701 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 115 [2018-12-08 09:12:48,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:12:48,710 INFO L225 Difference]: With dead ends: 11783 [2018-12-08 09:12:48,710 INFO L226 Difference]: Without dead ends: 11783 [2018-12-08 09:12:48,710 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 [2018-12-08 09:12:48,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11783 states. [2018-12-08 09:12:48,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11783 to 9566. [2018-12-08 09:12:48,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9566 states. [2018-12-08 09:12:48,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9566 states to 9566 states and 24603 transitions. [2018-12-08 09:12:48,798 INFO L78 Accepts]: Start accepts. Automaton has 9566 states and 24603 transitions. Word has length 115 [2018-12-08 09:12:48,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:12:48,798 INFO L480 AbstractCegarLoop]: Abstraction has 9566 states and 24603 transitions. [2018-12-08 09:12:48,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 09:12:48,798 INFO L276 IsEmpty]: Start isEmpty. Operand 9566 states and 24603 transitions. [2018-12-08 09:12:48,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-12-08 09:12:48,803 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:12:48,804 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] [2018-12-08 09:12:48,804 INFO L423 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:12:48,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:12:48,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1478973223, now seen corresponding path program 1 times [2018-12-08 09:12:48,804 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:12:48,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:12:48,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:48,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:12:48,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:12:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:12:48,903 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 09:12:48,903 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/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 [2018-12-08 09:12:48,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:12:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:12:48,940 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:12:48,982 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:12:49,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 09:12:49,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 11 [2018-12-08 09:12:49,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 09:12:49,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 09:12:49,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-12-08 09:12:49,033 INFO L87 Difference]: Start difference. First operand 9566 states and 24603 transitions. Second operand 11 states. [2018-12-08 09:12:49,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:12:49,169 INFO L93 Difference]: Finished difference Result 11693 states and 29799 transitions. [2018-12-08 09:12:49,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 09:12:49,169 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 115 [2018-12-08 09:12:49,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:12:49,177 INFO L225 Difference]: With dead ends: 11693 [2018-12-08 09:12:49,177 INFO L226 Difference]: Without dead ends: 11693 [2018-12-08 09:12:49,177 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 [2018-12-08 09:12:49,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11693 states. [2018-12-08 09:12:49,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11693 to 9695. [2018-12-08 09:12:49,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9695 states. [2018-12-08 09:12:49,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9695 states to 9695 states and 24960 transitions. [2018-12-08 09:12:49,259 INFO L78 Accepts]: Start accepts. Automaton has 9695 states and 24960 transitions. Word has length 115 [2018-12-08 09:12:49,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:12:49,259 INFO L480 AbstractCegarLoop]: Abstraction has 9695 states and 24960 transitions. [2018-12-08 09:12:49,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 09:12:49,259 INFO L276 IsEmpty]: Start isEmpty. Operand 9695 states and 24960 transitions. [2018-12-08 09:12:49,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-12-08 09:12:49,264 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:12:49,264 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] [2018-12-08 09:12:49,264 INFO L423 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:12:49,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:12:49,265 INFO L82 PathProgramCache]: Analyzing trace with hash 482584338, now seen corresponding path program 1 times [2018-12-08 09:12:49,265 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:12:49,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:12:49,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:49,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:12:49,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:12:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:12:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:12:49,342 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 09:12:49,393 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-08 09:12:49,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 09:12:49 BasicIcfg [2018-12-08 09:12:49,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 09:12:49,394 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 09:12:49,394 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 09:12:49,394 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 09:12:49,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:12:40" (3/4) ... [2018-12-08 09:12:49,396 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 09:12:49,450 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_195dfafe-5d6f-4f94-9eae-434a7bc592c1/bin-2019/uautomizer/witness.graphml [2018-12-08 09:12:49,451 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 09:12:49,451 INFO L168 Benchmark]: Toolchain (without parser) took 9591.65 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 467.1 MB). Free memory was 950.6 MB in the beginning and 1.2 GB in the end (delta: -231.2 MB). Peak memory consumption was 235.9 MB. Max. memory is 11.5 GB. [2018-12-08 09:12:49,452 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:12:49,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 950.6 MB in the beginning and 1.0 GB in the end (delta: -93.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2018-12-08 09:12:49,452 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:12:49,452 INFO L168 Benchmark]: Boogie Preprocessor took 18.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:12:49,452 INFO L168 Benchmark]: RCFGBuilder took 256.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 43.8 MB). Peak memory consumption was 43.8 MB. Max. memory is 11.5 GB. [2018-12-08 09:12:49,452 INFO L168 Benchmark]: TraceAbstraction took 8814.61 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 370.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -207.4 MB). Peak memory consumption was 162.8 MB. Max. memory is 11.5 GB. [2018-12-08 09:12:49,453 INFO L168 Benchmark]: Witness Printer took 56.39 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2018-12-08 09:12:49,454 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 414.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 950.6 MB in the beginning and 1.0 GB in the end (delta: -93.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 256.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 43.8 MB). Peak memory consumption was 43.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8814.61 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 370.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -207.4 MB). Peak memory consumption was 162.8 MB. Max. memory is 11.5 GB. * Witness Printer took 56.39 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 919]: 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[(400)]; VAL [arr={4294967304:0}, top=0] [L916] -1 pthread_mutex_t m; VAL [arr={4294967304:0}, m={4294967307:0}, top=0] [L917] -1 _Bool flag=(0); VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L998] -1 pthread_t id1, id2; VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L1000] FCALL, FORK -1 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L967] 0 int i; VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L968] 0 unsigned int tmp; VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L969] 0 i=0 VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L969] COND TRUE 0 i<(400) VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L1001] FCALL, FORK -1 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L983] 1 int i; VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L984] 1 i=0 VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L984] COND TRUE 1 i<(400) VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L972] 0 tmp = __VERIFIER_nondet_uint() VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L939] COND FALSE 0 !(top==(400)) VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L931] 0 return top; VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L946] 0 stack[get_top()] = x VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=0] [L923] 0 top++ VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=1] [L949] 0 return 0; VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=1] [L974] COND FALSE 0 !(push(arr,tmp)==(-1)) VAL [arr={4294967304:0}, flag=0, m={4294967307:0}, top=1] [L976] 0 flag=(1) VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=1] [L987] COND TRUE 1 \read(flag) VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=1] [L931] 1 return top; VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=1] [L953] COND FALSE 1 !(get_top()==0) VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=1] [L927] 1 top-- VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=0] [L931] 1 return top; VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=0] [L961] EXPR 1 stack[get_top()] VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=0] [L961] 1 return stack[get_top()]; VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=0] [L989] COND FALSE 1 !(!(pop(arr)!=(-2))) VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=0] [L984] 1 i++ VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=0] [L984] COND TRUE 1 i<(400) VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=0] [L987] COND TRUE 1 \read(flag) VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=0] [L931] 1 return top; VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=0] [L953] COND TRUE 1 get_top()==0 VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=0] [L956] 1 return (-2); VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=0] [L989] COND TRUE 1 !(pop(arr)!=(-2)) VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=0] [L919] 1 __VERIFIER_error() VAL [arr={4294967304:0}, flag=1, m={4294967307:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 221 locations, 4 error locations. UNSAFE Result, 8.7s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 4.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2073 SDtfs, 3806 SDslu, 10122 SDs, 0 SdLazy, 1732 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 564 GetRequests, 431 SyntacticMatches, 10 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 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: 1.1s 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, 920965 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...