./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stack-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/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 56b20b6796faad8ab2b7905f19aea09fce4f4ac8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-cad4683 [2019-10-22 09:01:36,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:36,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:36,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:36,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:36,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:36,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:36,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:36,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:36,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:36,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:36,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:36,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:36,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:36,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:36,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:36,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:36,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:36,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:36,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:36,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:36,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:36,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:36,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:36,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:36,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:36,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:36,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:36,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:36,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:36,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:36,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:36,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:36,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:36,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:36,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:36,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:36,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:36,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:36,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:36,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:36,576 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:01:36,587 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:36,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:36,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:36,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:36,598 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:36,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:36,598 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:36,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:36,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:36,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:36,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:01:36,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:36,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:01:36,599 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:36,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:36,599 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:36,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:01:36,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:36,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:36,600 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:36,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:36,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:36,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:36,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:36,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:01:36,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:36,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:01:36,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:01:36,601 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/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 -> 56b20b6796faad8ab2b7905f19aea09fce4f4ac8 [2019-10-22 09:01:36,632 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:36,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:36,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:36,649 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:36,649 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:36,650 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/uautomizer/../../sv-benchmarks/c/pthread/stack-2.i [2019-10-22 09:01:36,701 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/uautomizer/data/ae7fc1b25/20ab540a9ac94c13b104d0fbc67a51f4/FLAGc867a6787 [2019-10-22 09:01:37,140 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:37,141 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/sv-benchmarks/c/pthread/stack-2.i [2019-10-22 09:01:37,155 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/uautomizer/data/ae7fc1b25/20ab540a9ac94c13b104d0fbc67a51f4/FLAGc867a6787 [2019-10-22 09:01:37,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/uautomizer/data/ae7fc1b25/20ab540a9ac94c13b104d0fbc67a51f4 [2019-10-22 09:01:37,465 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:37,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:37,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:37,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:37,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:37,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:37" (1/1) ... [2019-10-22 09:01:37,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@188e4a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:37, skipping insertion in model container [2019-10-22 09:01:37,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:37" (1/1) ... [2019-10-22 09:01:37,485 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:37,526 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:38,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:38,022 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:38,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:38,173 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:38,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38 WrapperNode [2019-10-22 09:01:38,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:38,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:38,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:38,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:38,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:38,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:38,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:38,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:38,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:38,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:38,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:38,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:38,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/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 [2019-10-22 09:01:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2019-10-22 09:01:38,329 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2019-10-22 09:01:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2019-10-22 09:01:38,329 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2019-10-22 09:01:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:01:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:01:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:01:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-10-22 09:01:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:01:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:38,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:38,333 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 09:01:38,939 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:38,939 INFO L284 CfgBuilder]: Removed 24 assume(true) statements. [2019-10-22 09:01:38,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:38 BoogieIcfgContainer [2019-10-22 09:01:38,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:38,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:38,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:38,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:38,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:37" (1/3) ... [2019-10-22 09:01:38,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29319b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:38, skipping insertion in model container [2019-10-22 09:01:38,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (2/3) ... [2019-10-22 09:01:38,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29319b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:38, skipping insertion in model container [2019-10-22 09:01:38,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:38" (3/3) ... [2019-10-22 09:01:38,947 INFO L109 eAbstractionObserver]: Analyzing ICFG stack-2.i [2019-10-22 09:01:39,000 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,001 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,001 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,001 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,001 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,002 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,002 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,002 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,002 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,002 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,003 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,003 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,003 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,003 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,003 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,003 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,004 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,004 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,004 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,004 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,004 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,004 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,005 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,005 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,005 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,005 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,005 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,005 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,005 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,006 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,006 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,006 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,008 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,009 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,009 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,009 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,009 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,009 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,010 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,010 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,010 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,010 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,010 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,011 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,011 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,011 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,011 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,011 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,011 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,012 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,012 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,012 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,012 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,012 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,013 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,013 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,013 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,013 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,013 WARN L315 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,013 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,014 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,014 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,029 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,029 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,030 WARN L315 ript$VariableManager]: TermVariabe Thread1_t2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,030 WARN L315 ript$VariableManager]: TermVariabe Thread1_t2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,030 WARN L315 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,030 WARN L315 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,030 WARN L315 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,030 WARN L315 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,031 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,031 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,031 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,031 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,032 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,032 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,032 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,032 WARN L315 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,032 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,032 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,033 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,033 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,033 WARN L315 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,033 WARN L315 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,033 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,033 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,033 WARN L315 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,034 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,034 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,034 WARN L315 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,034 WARN L315 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,034 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,035 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,035 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,035 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,035 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,035 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,035 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,036 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,036 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,036 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,036 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,036 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,036 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,046 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,047 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,047 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,047 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,047 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,047 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,047 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,047 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,048 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,048 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,048 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,048 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,048 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,048 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,049 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,049 WARN L315 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,049 WARN L315 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,049 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,049 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,049 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,050 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,050 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,050 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:01:39,124 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 09:01:39,124 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:39,132 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-22 09:01:39,140 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-22 09:01:39,156 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:39,157 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:01:39,157 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:39,157 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:39,157 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:39,157 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:39,157 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:39,157 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:39,168 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 133 places, 141 transitions [2019-10-22 09:01:39,473 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6508 states. [2019-10-22 09:01:39,475 INFO L276 IsEmpty]: Start isEmpty. Operand 6508 states. [2019-10-22 09:01:39,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-22 09:01:39,497 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:39,501 INFO L380 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] [2019-10-22 09:01:39,506 INFO L410 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:39,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:39,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1786939782, now seen corresponding path program 1 times [2019-10-22 09:01:39,520 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:39,520 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043191605] [2019-10-22 09:01:39,521 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:39,521 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:39,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:39,838 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043191605] [2019-10-22 09:01:39,839 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:39,839 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:01:39,840 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734366810] [2019-10-22 09:01:39,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:01:39,845 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:39,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:39,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:39,861 INFO L87 Difference]: Start difference. First operand 6508 states. Second operand 3 states. [2019-10-22 09:01:40,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:40,046 INFO L93 Difference]: Finished difference Result 9856 states and 26355 transitions. [2019-10-22 09:01:40,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:40,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-10-22 09:01:40,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:40,128 INFO L225 Difference]: With dead ends: 9856 [2019-10-22 09:01:40,128 INFO L226 Difference]: Without dead ends: 9748 [2019-10-22 09:01:40,130 INFO L600 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 [2019-10-22 09:01:40,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9748 states. [2019-10-22 09:01:40,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9748 to 8278. [2019-10-22 09:01:40,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8278 states. [2019-10-22 09:01:40,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8278 states to 8278 states and 22336 transitions. [2019-10-22 09:01:40,584 INFO L78 Accepts]: Start accepts. Automaton has 8278 states and 22336 transitions. Word has length 48 [2019-10-22 09:01:40,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:40,586 INFO L462 AbstractCegarLoop]: Abstraction has 8278 states and 22336 transitions. [2019-10-22 09:01:40,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:01:40,586 INFO L276 IsEmpty]: Start isEmpty. Operand 8278 states and 22336 transitions. [2019-10-22 09:01:40,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 09:01:40,592 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:40,593 INFO L380 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] [2019-10-22 09:01:40,593 INFO L410 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:40,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:40,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1405693039, now seen corresponding path program 1 times [2019-10-22 09:01:40,594 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:40,594 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146624791] [2019-10-22 09:01:40,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:40,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:40,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:40,768 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146624791] [2019-10-22 09:01:40,768 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:40,769 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:01:40,769 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340920499] [2019-10-22 09:01:40,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:01:40,773 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:40,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:40,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:40,774 INFO L87 Difference]: Start difference. First operand 8278 states and 22336 transitions. Second operand 3 states. [2019-10-22 09:01:40,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:40,842 INFO L93 Difference]: Finished difference Result 7699 states and 20471 transitions. [2019-10-22 09:01:40,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:40,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-22 09:01:40,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:40,877 INFO L225 Difference]: With dead ends: 7699 [2019-10-22 09:01:40,882 INFO L226 Difference]: Without dead ends: 7558 [2019-10-22 09:01:40,883 INFO L600 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 [2019-10-22 09:01:40,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7558 states. [2019-10-22 09:01:41,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7558 to 7330. [2019-10-22 09:01:41,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7330 states. [2019-10-22 09:01:41,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7330 states to 7330 states and 19610 transitions. [2019-10-22 09:01:41,083 INFO L78 Accepts]: Start accepts. Automaton has 7330 states and 19610 transitions. Word has length 52 [2019-10-22 09:01:41,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:41,084 INFO L462 AbstractCegarLoop]: Abstraction has 7330 states and 19610 transitions. [2019-10-22 09:01:41,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:01:41,084 INFO L276 IsEmpty]: Start isEmpty. Operand 7330 states and 19610 transitions. [2019-10-22 09:01:41,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-22 09:01:41,087 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:41,087 INFO L380 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] [2019-10-22 09:01:41,087 INFO L410 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:41,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:41,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1779742681, now seen corresponding path program 1 times [2019-10-22 09:01:41,088 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:41,088 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022922327] [2019-10-22 09:01:41,088 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:41,088 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:41,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:41,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:41,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022922327] [2019-10-22 09:01:41,167 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:41,167 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:01:41,168 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678288932] [2019-10-22 09:01:41,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:01:41,168 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:41,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:01:41,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:01:41,169 INFO L87 Difference]: Start difference. First operand 7330 states and 19610 transitions. Second operand 4 states. [2019-10-22 09:01:41,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:41,293 INFO L93 Difference]: Finished difference Result 10195 states and 27213 transitions. [2019-10-22 09:01:41,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:01:41,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2019-10-22 09:01:41,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:41,330 INFO L225 Difference]: With dead ends: 10195 [2019-10-22 09:01:41,334 INFO L226 Difference]: Without dead ends: 10195 [2019-10-22 09:01:41,335 INFO L600 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 [2019-10-22 09:01:41,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10195 states. [2019-10-22 09:01:41,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10195 to 7654. [2019-10-22 09:01:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7654 states. [2019-10-22 09:01:41,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7654 states to 7654 states and 20477 transitions. [2019-10-22 09:01:41,558 INFO L78 Accepts]: Start accepts. Automaton has 7654 states and 20477 transitions. Word has length 57 [2019-10-22 09:01:41,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:41,561 INFO L462 AbstractCegarLoop]: Abstraction has 7654 states and 20477 transitions. [2019-10-22 09:01:41,561 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:01:41,561 INFO L276 IsEmpty]: Start isEmpty. Operand 7654 states and 20477 transitions. [2019-10-22 09:01:41,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-22 09:01:41,568 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:41,569 INFO L380 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] [2019-10-22 09:01:41,570 INFO L410 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:41,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:41,570 INFO L82 PathProgramCache]: Analyzing trace with hash -118530051, now seen corresponding path program 1 times [2019-10-22 09:01:41,570 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:41,571 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424051979] [2019-10-22 09:01:41,571 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:41,571 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:41,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:41,715 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:41,715 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424051979] [2019-10-22 09:01:41,716 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848272214] [2019-10-22 09:01:41,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:01:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:41,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:01:41,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:41,899 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:41,900 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:01:41,900 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-10-22 09:01:41,900 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820983754] [2019-10-22 09:01:41,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:01:41,901 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:41,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:01:41,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:01:41,901 INFO L87 Difference]: Start difference. First operand 7654 states and 20477 transitions. Second operand 7 states. [2019-10-22 09:01:42,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:42,066 INFO L93 Difference]: Finished difference Result 11188 states and 29821 transitions. [2019-10-22 09:01:42,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:01:42,066 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2019-10-22 09:01:42,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:42,093 INFO L225 Difference]: With dead ends: 11188 [2019-10-22 09:01:42,093 INFO L226 Difference]: Without dead ends: 11188 [2019-10-22 09:01:42,093 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:01:42,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11188 states. [2019-10-22 09:01:42,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11188 to 9718. [2019-10-22 09:01:42,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9718 states. [2019-10-22 09:01:42,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9718 states to 9718 states and 26038 transitions. [2019-10-22 09:01:42,378 INFO L78 Accepts]: Start accepts. Automaton has 9718 states and 26038 transitions. Word has length 80 [2019-10-22 09:01:42,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:42,381 INFO L462 AbstractCegarLoop]: Abstraction has 9718 states and 26038 transitions. [2019-10-22 09:01:42,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:01:42,381 INFO L276 IsEmpty]: Start isEmpty. Operand 9718 states and 26038 transitions. [2019-10-22 09:01:42,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-22 09:01:42,391 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:42,391 INFO L380 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] [2019-10-22 09:01:42,593 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:01:42,594 INFO L410 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:42,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:42,594 INFO L82 PathProgramCache]: Analyzing trace with hash 446984050, now seen corresponding path program 1 times [2019-10-22 09:01:42,595 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:42,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246200650] [2019-10-22 09:01:42,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:42,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:42,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:42,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:42,659 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246200650] [2019-10-22 09:01:42,659 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:42,660 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:01:42,660 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48428279] [2019-10-22 09:01:42,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:01:42,660 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:42,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:42,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:42,661 INFO L87 Difference]: Start difference. First operand 9718 states and 26038 transitions. Second operand 3 states. [2019-10-22 09:01:42,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:42,706 INFO L93 Difference]: Finished difference Result 4951 states and 12537 transitions. [2019-10-22 09:01:42,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:42,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2019-10-22 09:01:42,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:42,721 INFO L225 Difference]: With dead ends: 4951 [2019-10-22 09:01:42,722 INFO L226 Difference]: Without dead ends: 4951 [2019-10-22 09:01:42,722 INFO L600 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 [2019-10-22 09:01:42,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4951 states. [2019-10-22 09:01:42,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4951 to 4846. [2019-10-22 09:01:42,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4846 states. [2019-10-22 09:01:42,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4846 states to 4846 states and 12272 transitions. [2019-10-22 09:01:42,873 INFO L78 Accepts]: Start accepts. Automaton has 4846 states and 12272 transitions. Word has length 84 [2019-10-22 09:01:42,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:42,874 INFO L462 AbstractCegarLoop]: Abstraction has 4846 states and 12272 transitions. [2019-10-22 09:01:42,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:01:42,874 INFO L276 IsEmpty]: Start isEmpty. Operand 4846 states and 12272 transitions. [2019-10-22 09:01:42,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-10-22 09:01:42,879 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:42,879 INFO L380 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] [2019-10-22 09:01:42,879 INFO L410 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:42,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:42,880 INFO L82 PathProgramCache]: Analyzing trace with hash 764930686, now seen corresponding path program 1 times [2019-10-22 09:01:42,880 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:42,880 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767451849] [2019-10-22 09:01:42,880 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:42,880 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:42,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:43,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:43,017 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767451849] [2019-10-22 09:01:43,018 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:43,018 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:01:43,019 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435469336] [2019-10-22 09:01:43,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:01:43,019 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:43,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:01:43,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:01:43,020 INFO L87 Difference]: Start difference. First operand 4846 states and 12272 transitions. Second operand 7 states. [2019-10-22 09:01:43,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:43,177 INFO L93 Difference]: Finished difference Result 6385 states and 16126 transitions. [2019-10-22 09:01:43,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 09:01:43,178 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2019-10-22 09:01:43,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:43,193 INFO L225 Difference]: With dead ends: 6385 [2019-10-22 09:01:43,193 INFO L226 Difference]: Without dead ends: 6385 [2019-10-22 09:01:43,194 INFO L600 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 [2019-10-22 09:01:43,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6385 states. [2019-10-22 09:01:43,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6385 to 5251. [2019-10-22 09:01:43,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5251 states. [2019-10-22 09:01:43,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 13266 transitions. [2019-10-22 09:01:43,303 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 13266 transitions. Word has length 85 [2019-10-22 09:01:43,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:43,303 INFO L462 AbstractCegarLoop]: Abstraction has 5251 states and 13266 transitions. [2019-10-22 09:01:43,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:01:43,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 13266 transitions. [2019-10-22 09:01:43,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-22 09:01:43,315 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:43,315 INFO L380 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, 1, 1] [2019-10-22 09:01:43,315 INFO L410 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:43,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:43,315 INFO L82 PathProgramCache]: Analyzing trace with hash -848759658, now seen corresponding path program 1 times [2019-10-22 09:01:43,315 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:43,316 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784756839] [2019-10-22 09:01:43,316 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:43,316 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:43,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:44,147 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784756839] [2019-10-22 09:01:44,147 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:44,147 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-22 09:01:44,147 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955013902] [2019-10-22 09:01:44,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-22 09:01:44,148 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:44,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-22 09:01:44,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2019-10-22 09:01:44,148 INFO L87 Difference]: Start difference. First operand 5251 states and 13266 transitions. Second operand 22 states. [2019-10-22 09:01:45,858 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2019-10-22 09:01:47,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:47,602 INFO L93 Difference]: Finished difference Result 13174 states and 33307 transitions. [2019-10-22 09:01:47,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-22 09:01:47,603 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 95 [2019-10-22 09:01:47,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:47,635 INFO L225 Difference]: With dead ends: 13174 [2019-10-22 09:01:47,636 INFO L226 Difference]: Without dead ends: 13174 [2019-10-22 09:01:47,637 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=442, Invalid=2314, Unknown=0, NotChecked=0, Total=2756 [2019-10-22 09:01:47,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13174 states. [2019-10-22 09:01:47,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13174 to 7516. [2019-10-22 09:01:47,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7516 states. [2019-10-22 09:01:47,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 19180 transitions. [2019-10-22 09:01:47,824 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 19180 transitions. Word has length 95 [2019-10-22 09:01:47,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:47,825 INFO L462 AbstractCegarLoop]: Abstraction has 7516 states and 19180 transitions. [2019-10-22 09:01:47,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-22 09:01:47,825 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 19180 transitions. [2019-10-22 09:01:47,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-22 09:01:47,836 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:47,836 INFO L380 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, 1, 1] [2019-10-22 09:01:47,837 INFO L410 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:47,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:47,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1379100044, now seen corresponding path program 2 times [2019-10-22 09:01:47,837 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:47,837 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329458223] [2019-10-22 09:01:47,838 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:47,838 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:47,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:47,987 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:47,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329458223] [2019-10-22 09:01:47,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333864430] [2019-10-22 09:01:47,989 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:01:48,074 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 09:01:48,074 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 09:01:48,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 09:01:48,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:48,195 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:48,196 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:01:48,196 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2019-10-22 09:01:48,196 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100830373] [2019-10-22 09:01:48,197 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:01:48,197 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:48,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:01:48,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:01:48,198 INFO L87 Difference]: Start difference. First operand 7516 states and 19180 transitions. Second operand 9 states. [2019-10-22 09:01:48,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:48,324 INFO L93 Difference]: Finished difference Result 10708 states and 27082 transitions. [2019-10-22 09:01:48,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 09:01:48,325 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2019-10-22 09:01:48,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:48,346 INFO L225 Difference]: With dead ends: 10708 [2019-10-22 09:01:48,347 INFO L226 Difference]: Without dead ends: 10708 [2019-10-22 09:01:48,347 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2019-10-22 09:01:48,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10708 states. [2019-10-22 09:01:48,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 9013. [2019-10-22 09:01:48,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9013 states. [2019-10-22 09:01:48,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9013 states to 9013 states and 23050 transitions. [2019-10-22 09:01:48,511 INFO L78 Accepts]: Start accepts. Automaton has 9013 states and 23050 transitions. Word has length 112 [2019-10-22 09:01:48,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:48,512 INFO L462 AbstractCegarLoop]: Abstraction has 9013 states and 23050 transitions. [2019-10-22 09:01:48,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:01:48,512 INFO L276 IsEmpty]: Start isEmpty. Operand 9013 states and 23050 transitions. [2019-10-22 09:01:48,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-22 09:01:48,524 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:48,525 INFO L380 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, 1, 1] [2019-10-22 09:01:48,725 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:01:48,725 INFO L410 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:48,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:48,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1016198837, now seen corresponding path program 1 times [2019-10-22 09:01:48,726 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:48,726 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316863431] [2019-10-22 09:01:48,726 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:48,726 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:48,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:48,855 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:48,856 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316863431] [2019-10-22 09:01:48,856 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092753127] [2019-10-22 09:01:48,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:01:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:48,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 09:01:48,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:48,987 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:48,987 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:01:48,987 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 11 [2019-10-22 09:01:48,987 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037326747] [2019-10-22 09:01:48,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:01:48,988 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:48,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:01:48,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:01:48,992 INFO L87 Difference]: Start difference. First operand 9013 states and 23050 transitions. Second operand 9 states. [2019-10-22 09:01:49,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:49,181 INFO L93 Difference]: Finished difference Result 11140 states and 28246 transitions. [2019-10-22 09:01:49,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 09:01:49,182 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 117 [2019-10-22 09:01:49,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:49,203 INFO L225 Difference]: With dead ends: 11140 [2019-10-22 09:01:49,203 INFO L226 Difference]: Without dead ends: 11140 [2019-10-22 09:01:49,203 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2019-10-22 09:01:49,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11140 states. [2019-10-22 09:01:49,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11140 to 9142. [2019-10-22 09:01:49,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9142 states. [2019-10-22 09:01:49,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9142 states to 9142 states and 23407 transitions. [2019-10-22 09:01:49,369 INFO L78 Accepts]: Start accepts. Automaton has 9142 states and 23407 transitions. Word has length 117 [2019-10-22 09:01:49,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:49,369 INFO L462 AbstractCegarLoop]: Abstraction has 9142 states and 23407 transitions. [2019-10-22 09:01:49,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:01:49,370 INFO L276 IsEmpty]: Start isEmpty. Operand 9142 states and 23407 transitions. [2019-10-22 09:01:49,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-22 09:01:49,383 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:49,383 INFO L380 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, 1, 1] [2019-10-22 09:01:49,584 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:01:49,584 INFO L410 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:49,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:49,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1861968992, now seen corresponding path program 1 times [2019-10-22 09:01:49,584 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:49,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224817425] [2019-10-22 09:01:49,585 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:49,585 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:49,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:49,723 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:49,723 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:01:49,835 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 09:01:49,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:01:49 BasicIcfg [2019-10-22 09:01:49,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:01:49,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:49,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:49,837 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:49,837 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:38" (3/4) ... [2019-10-22 09:01:49,843 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:01:49,938 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1b06c76e-816c-4cb5-bbf9-67e465a6dcf7/bin/uautomizer/witness.graphml [2019-10-22 09:01:49,939 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:49,940 INFO L168 Benchmark]: Toolchain (without parser) took 12473.84 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 509.1 MB). Free memory was 944.5 MB in the beginning and 991.9 MB in the end (delta: -47.5 MB). Peak memory consumption was 461.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:49,940 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 964.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:49,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -120.4 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:49,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:49,941 INFO L168 Benchmark]: Boogie Preprocessor took 28.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:49,942 INFO L168 Benchmark]: RCFGBuilder took 686.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:49,943 INFO L168 Benchmark]: TraceAbstraction took 10895.39 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 382.2 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -10.8 MB). Peak memory consumption was 371.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:49,943 INFO L168 Benchmark]: Witness Printer took 102.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 991.9 MB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:49,945 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 964.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 705.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -120.4 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 686.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10895.39 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 382.2 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -10.8 MB). Peak memory consumption was 371.4 MB. Max. memory is 11.5 GB. * Witness Printer took 102.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 991.9 MB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 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: [L913] 0 static int top=0; VAL [top=0] [L914] 0 static unsigned int arr[(5)]; VAL [arr={1:0}, top=0] [L915] 0 pthread_mutex_t m; VAL [arr={1:0}, m={-2:0}, top=0] [L916] 0 _Bool flag=(0); VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L999] 0 pthread_t id1, id2; VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L1001] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L968] 1 int i; VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L969] 1 unsigned int tmp; VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L970] 1 i=0 VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L970] COND TRUE 1 i<(5) VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L1002] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L984] 2 int i; VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L985] 2 i=0 VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L985] COND TRUE 2 i<(5) VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L973] 1 tmp = __VERIFIER_nondet_uint() VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L940] COND FALSE 1 !(top==(5)) VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L932] 1 return top; VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L947] 1 stack[get_top()] = x VAL [arr={1:0}, flag=0, m={-2:0}, top=0] [L924] 1 top++ VAL [arr={1:0}, flag=0, m={-2:0}, top=1] [L950] 1 return 0; VAL [arr={1:0}, flag=0, m={-2:0}, top=1] [L975] COND FALSE 1 !(push(arr,tmp)==(-1)) VAL [arr={1:0}, flag=0, m={-2:0}, top=1] [L977] 1 flag=(1) VAL [arr={1:0}, flag=1, m={-2:0}, top=1] [L988] COND TRUE 2 \read(flag) VAL [arr={1:0}, flag=1, m={-2:0}, top=1] [L932] 2 return top; VAL [arr={1:0}, flag=1, m={-2:0}, top=1] [L954] COND FALSE 2 !(get_top()==0) VAL [arr={1:0}, flag=1, m={-2:0}, top=1] [L928] 2 top-- VAL [arr={1:0}, flag=1, m={-2:0}, top=0] [L932] 2 return top; VAL [arr={1:0}, flag=1, m={-2:0}, top=0] [L962] EXPR 2 stack[get_top()] VAL [arr={1:0}, flag=1, m={-2:0}, top=0] [L962] 2 return stack[get_top()]; VAL [arr={1:0}, flag=1, m={-2:0}, top=0] [L990] COND FALSE 2 !(!(pop(arr)!=(-2))) VAL [arr={1:0}, flag=1, m={-2:0}, top=0] [L985] 2 i++ VAL [arr={1:0}, flag=1, m={-2:0}, top=0] [L985] COND TRUE 2 i<(5) VAL [arr={1:0}, flag=1, m={-2:0}, top=0] [L988] COND TRUE 2 \read(flag) VAL [arr={1:0}, flag=1, m={-2:0}, top=0] [L932] 2 return top; VAL [arr={1:0}, flag=1, m={-2:0}, top=0] [L954] COND TRUE 2 get_top()==0 VAL [arr={1:0}, flag=1, m={-2:0}, top=0] [L957] 2 return (-2); VAL [arr={1:0}, flag=1, m={-2:0}, top=0] [L990] COND TRUE 2 !(pop(arr)!=(-2)) VAL [arr={1:0}, flag=1, m={-2:0}, top=0] [L919] 2 __VERIFIER_error() VAL [arr={1:0}, flag=1, m={-2:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 223 locations, 4 error locations. Result: UNSAFE, OverallTime: 10.6s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1917 SDtfs, 2542 SDslu, 10079 SDs, 0 SdLazy, 2161 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 417 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9718occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 16299 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1158 NumberOfCodeBlocks, 1158 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1027 ConstructedInterpolants, 0 QuantifiedInterpolants, 349821 SizeOfPredicates, 15 NumberOfNonLiveVariables, 701 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 55/212 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...