./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e9f91870-82a4-4172-bb04-ee83ffb843d6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e9f91870-82a4-4172-bb04-ee83ffb843d6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e9f91870-82a4-4172-bb04-ee83ffb843d6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e9f91870-82a4-4172-bb04-ee83ffb843d6/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e9f91870-82a4-4172-bb04-ee83ffb843d6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e9f91870-82a4-4172-bb04-ee83ffb843d6/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1225f82562543767c482452e9133e4a69d5dae70 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:59:47,548 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:59:47,549 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:59:47,556 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:59:47,556 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:59:47,557 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:59:47,558 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:59:47,559 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:59:47,560 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:59:47,560 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:59:47,561 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:59:47,561 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:59:47,562 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:59:47,563 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:59:47,563 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:59:47,564 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:59:47,565 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:59:47,566 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:59:47,567 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:59:47,568 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:59:47,569 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:59:47,570 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:59:47,571 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:59:47,572 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:59:47,572 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:59:47,572 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:59:47,573 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:59:47,574 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:59:47,574 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:59:47,575 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:59:47,575 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:59:47,575 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:59:47,576 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:59:47,576 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:59:47,576 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:59:47,577 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:59:47,577 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e9f91870-82a4-4172-bb04-ee83ffb843d6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:59:47,587 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:59:47,588 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:59:47,588 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:59:47,588 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:59:47,589 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:59:47,589 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:59:47,589 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:59:47,589 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:59:47,589 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:59:47,589 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:59:47,589 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:59:47,590 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:59:47,590 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:59:47,590 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:59:47,591 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:59:47,591 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:59:47,591 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:59:47,591 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:59:47,591 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:59:47,591 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:59:47,591 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:59:47,592 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:59:47,592 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:59:47,592 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:59:47,592 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:59:47,592 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:59:47,592 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:59:47,593 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:59:47,593 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:59:47,593 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:59:47,593 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:59:47,593 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:59:47,593 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:59:47,593 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:59:47,593 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:59:47,594 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:59:47,594 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:59:47,594 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e9f91870-82a4-4172-bb04-ee83ffb843d6/bin-2019/utaipan 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 -> Taipan 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 -> 1225f82562543767c482452e9133e4a69d5dae70 [2018-11-18 12:59:47,616 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:59:47,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:59:47,626 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:59:47,627 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:59:47,627 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:59:47,627 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e9f91870-82a4-4172-bb04-ee83ffb843d6/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i [2018-11-18 12:59:47,663 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e9f91870-82a4-4172-bb04-ee83ffb843d6/bin-2019/utaipan/data/5a84619ad/798cbf6835bc49be811915c751221797/FLAG6506a06d1 [2018-11-18 12:59:47,997 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:59:47,997 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e9f91870-82a4-4172-bb04-ee83ffb843d6/sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i [2018-11-18 12:59:48,002 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e9f91870-82a4-4172-bb04-ee83ffb843d6/bin-2019/utaipan/data/5a84619ad/798cbf6835bc49be811915c751221797/FLAG6506a06d1 [2018-11-18 12:59:48,429 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e9f91870-82a4-4172-bb04-ee83ffb843d6/bin-2019/utaipan/data/5a84619ad/798cbf6835bc49be811915c751221797 [2018-11-18 12:59:48,431 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:59:48,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:59:48,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:59:48,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:59:48,437 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:59:48,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:59:48" (1/1) ... [2018-11-18 12:59:48,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6180e9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:48, skipping insertion in model container [2018-11-18 12:59:48,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:59:48" (1/1) ... [2018-11-18 12:59:48,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:59:48,461 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:59:48,568 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:59:48,570 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:59:48,581 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:59:48,592 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:59:48,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:48 WrapperNode [2018-11-18 12:59:48,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:59:48,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:59:48,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:59:48,593 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:59:48,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:48" (1/1) ... [2018-11-18 12:59:48,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:48" (1/1) ... [2018-11-18 12:59:48,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:59:48,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:59:48,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:59:48,606 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:59:48,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:48" (1/1) ... [2018-11-18 12:59:48,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:48" (1/1) ... [2018-11-18 12:59:48,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:48" (1/1) ... [2018-11-18 12:59:48,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:48" (1/1) ... [2018-11-18 12:59:48,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:48" (1/1) ... [2018-11-18 12:59:48,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:48" (1/1) ... [2018-11-18 12:59:48,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:48" (1/1) ... [2018-11-18 12:59:48,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:59:48,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:59:48,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:59:48,623 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:59:48,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e9f91870-82a4-4172-bb04-ee83ffb843d6/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:59:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2018-11-18 12:59:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2018-11-18 12:59:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2018-11-18 12:59:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2018-11-18 12:59:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2018-11-18 12:59:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2018-11-18 12:59:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-18 12:59:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-18 12:59:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:59:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:59:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2018-11-18 12:59:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2018-11-18 12:59:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2018-11-18 12:59:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2018-11-18 12:59:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:59:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:59:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2018-11-18 12:59:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2018-11-18 12:59:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2018-11-18 12:59:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2018-11-18 12:59:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:59:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:59:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2018-11-18 12:59:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2018-11-18 12:59:48,886 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:59:48,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:59:48 BoogieIcfgContainer [2018-11-18 12:59:48,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:59:48,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:59:48,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:59:48,889 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:59:48,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:59:48" (1/3) ... [2018-11-18 12:59:48,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc42072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:59:48, skipping insertion in model container [2018-11-18 12:59:48,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:48" (2/3) ... [2018-11-18 12:59:48,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc42072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:59:48, skipping insertion in model container [2018-11-18 12:59:48,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:59:48" (3/3) ... [2018-11-18 12:59:48,891 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful_check_false-unreach-call_false-termination.i [2018-11-18 12:59:48,897 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:59:48,901 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:59:48,909 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:59:48,928 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:59:48,929 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:59:48,929 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:59:48,929 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:59:48,929 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:59:48,929 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:59:48,929 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:59:48,929 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:59:48,940 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-11-18 12:59:48,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 12:59:48,944 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:59:48,944 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:59:48,946 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:59:48,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:59:48,949 INFO L82 PathProgramCache]: Analyzing trace with hash -16952088, now seen corresponding path program 1 times [2018-11-18 12:59:48,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:59:48,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:48,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:59:48,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:48,987 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:59:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:59:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:59:49,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:59:49,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:59:49,033 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:59:49,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:59:49,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:59:49,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:59:49,046 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-11-18 12:59:49,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:59:49,068 INFO L93 Difference]: Finished difference Result 137 states and 182 transitions. [2018-11-18 12:59:49,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:59:49,070 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-18 12:59:49,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:59:49,076 INFO L225 Difference]: With dead ends: 137 [2018-11-18 12:59:49,076 INFO L226 Difference]: Without dead ends: 66 [2018-11-18 12:59:49,079 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:59:49,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-18 12:59:49,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-11-18 12:59:49,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-11-18 12:59:49,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 81 transitions. [2018-11-18 12:59:49,110 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 81 transitions. Word has length 16 [2018-11-18 12:59:49,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:59:49,110 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 81 transitions. [2018-11-18 12:59:49,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:59:49,110 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 81 transitions. [2018-11-18 12:59:49,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 12:59:49,111 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:59:49,111 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:59:49,111 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:59:49,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:59:49,111 INFO L82 PathProgramCache]: Analyzing trace with hash 2034240647, now seen corresponding path program 1 times [2018-11-18 12:59:49,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:59:49,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:49,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:59:49,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:49,112 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:59:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:59:49,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:59:49,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:59:49,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:59:49,155 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:59:49,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:59:49,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:59:49,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:59:49,156 INFO L87 Difference]: Start difference. First operand 66 states and 81 transitions. Second operand 3 states. [2018-11-18 12:59:49,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:59:49,189 INFO L93 Difference]: Finished difference Result 110 states and 141 transitions. [2018-11-18 12:59:49,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:59:49,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-18 12:59:49,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:59:49,191 INFO L225 Difference]: With dead ends: 110 [2018-11-18 12:59:49,191 INFO L226 Difference]: Without dead ends: 104 [2018-11-18 12:59:49,192 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:59:49,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-18 12:59:49,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-11-18 12:59:49,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-18 12:59:49,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 134 transitions. [2018-11-18 12:59:49,203 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 134 transitions. Word has length 18 [2018-11-18 12:59:49,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:59:49,203 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 134 transitions. [2018-11-18 12:59:49,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:59:49,203 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 134 transitions. [2018-11-18 12:59:49,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 12:59:49,204 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:59:49,204 INFO L375 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] [2018-11-18 12:59:49,204 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:59:49,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:59:49,204 INFO L82 PathProgramCache]: Analyzing trace with hash -611150683, now seen corresponding path program 1 times [2018-11-18 12:59:49,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:59:49,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:49,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:59:49,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:49,205 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:59:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:59:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:59:49,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:59:49,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:59:49,237 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:59:49,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:59:49,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:59:49,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:59:49,237 INFO L87 Difference]: Start difference. First operand 104 states and 134 transitions. Second operand 3 states. [2018-11-18 12:59:49,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:59:49,300 INFO L93 Difference]: Finished difference Result 224 states and 303 transitions. [2018-11-18 12:59:49,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:59:49,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-11-18 12:59:49,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:59:49,302 INFO L225 Difference]: With dead ends: 224 [2018-11-18 12:59:49,302 INFO L226 Difference]: Without dead ends: 131 [2018-11-18 12:59:49,302 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:59:49,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-11-18 12:59:49,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2018-11-18 12:59:49,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-11-18 12:59:49,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 173 transitions. [2018-11-18 12:59:49,312 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 173 transitions. Word has length 30 [2018-11-18 12:59:49,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:59:49,313 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 173 transitions. [2018-11-18 12:59:49,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:59:49,313 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 173 transitions. [2018-11-18 12:59:49,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 12:59:49,314 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:59:49,314 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 12:59:49,314 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:59:49,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:59:49,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1554227274, now seen corresponding path program 1 times [2018-11-18 12:59:49,314 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:59:49,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:49,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:59:49,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:49,315 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:59:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:59:49,371 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:59:49,372 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:59:49,372 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:59:49,372 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-11-18 12:59:49,374 INFO L202 CegarAbsIntRunner]: [18], [24], [25], [26], [29], [31], [34], [36], [39], [40], [49], [55], [57], [61], [63], [68], [71], [74], [76], [81], [94], [107], [110], [113], [127], [134], [135], [144], [145], [146], [148], [152], [153], [154], [156], [157], [158], [159], [164] [2018-11-18 12:59:49,395 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:59:49,395 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:59:49,525 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 12:59:49,526 INFO L272 AbstractInterpreter]: Visited 28 different actions 45 times. Merged at 12 different actions 12 times. Never widened. Performed 320 root evaluator evaluations with a maximum evaluation depth of 3. Performed 320 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 11 variables. [2018-11-18 12:59:49,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:59:49,531 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 12:59:49,618 INFO L227 lantSequenceWeakener]: Weakened 29 states. On average, predicates are now at 46.08% of their original sizes. [2018-11-18 12:59:49,618 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 12:59:49,697 INFO L415 sIntCurrentIteration]: We unified 41 AI predicates to 41 [2018-11-18 12:59:49,697 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 12:59:49,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:59:49,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2018-11-18 12:59:49,698 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:59:49,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 12:59:49,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 12:59:49,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-11-18 12:59:49,699 INFO L87 Difference]: Start difference. First operand 130 states and 173 transitions. Second operand 12 states. [2018-11-18 12:59:50,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:59:50,396 INFO L93 Difference]: Finished difference Result 295 states and 404 transitions. [2018-11-18 12:59:50,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:59:50,397 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2018-11-18 12:59:50,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:59:50,399 INFO L225 Difference]: With dead ends: 295 [2018-11-18 12:59:50,399 INFO L226 Difference]: Without dead ends: 176 [2018-11-18 12:59:50,400 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-11-18 12:59:50,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-11-18 12:59:50,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2018-11-18 12:59:50,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-11-18 12:59:50,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 233 transitions. [2018-11-18 12:59:50,416 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 233 transitions. Word has length 42 [2018-11-18 12:59:50,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:59:50,416 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 233 transitions. [2018-11-18 12:59:50,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 12:59:50,417 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 233 transitions. [2018-11-18 12:59:50,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 12:59:50,418 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:59:50,418 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 12:59:50,418 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:59:50,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:59:50,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1621234027, now seen corresponding path program 1 times [2018-11-18 12:59:50,419 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:59:50,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:50,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:59:50,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:50,420 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:59:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:59:50,471 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:59:50,471 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:59:50,471 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 12:59:50,471 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-11-18 12:59:50,472 INFO L202 CegarAbsIntRunner]: [18], [24], [25], [26], [30], [31], [34], [36], [39], [40], [49], [55], [57], [61], [63], [68], [71], [74], [76], [81], [94], [107], [110], [113], [127], [134], [135], [144], [145], [146], [148], [152], [153], [154], [156], [157], [158], [159], [164] [2018-11-18 12:59:50,474 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 12:59:50,475 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 12:59:50,509 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 12:59:50,509 INFO L272 AbstractInterpreter]: Visited 28 different actions 45 times. Merged at 12 different actions 12 times. Never widened. Performed 324 root evaluator evaluations with a maximum evaluation depth of 3. Performed 324 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 11 variables. [2018-11-18 12:59:50,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:59:50,511 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 12:59:50,552 INFO L227 lantSequenceWeakener]: Weakened 29 states. On average, predicates are now at 53.66% of their original sizes. [2018-11-18 12:59:50,552 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 12:59:50,597 INFO L415 sIntCurrentIteration]: We unified 41 AI predicates to 41 [2018-11-18 12:59:50,597 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 12:59:50,597 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:59:50,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2018-11-18 12:59:50,597 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:59:50,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 12:59:50,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 12:59:50,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:59:50,598 INFO L87 Difference]: Start difference. First operand 174 states and 233 transitions. Second operand 11 states. [2018-11-18 12:59:51,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:59:51,120 INFO L93 Difference]: Finished difference Result 381 states and 527 transitions. [2018-11-18 12:59:51,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:59:51,120 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 42 [2018-11-18 12:59:51,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:59:51,121 INFO L225 Difference]: With dead ends: 381 [2018-11-18 12:59:51,121 INFO L226 Difference]: Without dead ends: 218 [2018-11-18 12:59:51,122 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:59:51,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-11-18 12:59:51,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 216. [2018-11-18 12:59:51,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-11-18 12:59:51,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 292 transitions. [2018-11-18 12:59:51,137 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 292 transitions. Word has length 42 [2018-11-18 12:59:51,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:59:51,137 INFO L480 AbstractCegarLoop]: Abstraction has 216 states and 292 transitions. [2018-11-18 12:59:51,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 12:59:51,137 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 292 transitions. [2018-11-18 12:59:51,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-18 12:59:51,138 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:59:51,139 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-11-18 12:59:51,139 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:59:51,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:59:51,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1958130909, now seen corresponding path program 1 times [2018-11-18 12:59:51,139 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:59:51,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:51,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:59:51,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:51,143 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:59:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:59:51,192 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 12:59:51,192 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:59:51,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 12:59:51,192 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:59:51,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 12:59:51,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:59:51,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:59:51,193 INFO L87 Difference]: Start difference. First operand 216 states and 292 transitions. Second operand 4 states. [2018-11-18 12:59:51,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:59:51,258 INFO L93 Difference]: Finished difference Result 553 states and 783 transitions. [2018-11-18 12:59:51,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 12:59:51,258 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-11-18 12:59:51,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:59:51,260 INFO L225 Difference]: With dead ends: 553 [2018-11-18 12:59:51,261 INFO L226 Difference]: Without dead ends: 348 [2018-11-18 12:59:51,261 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:59:51,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2018-11-18 12:59:51,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 294. [2018-11-18 12:59:51,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2018-11-18 12:59:51,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 417 transitions. [2018-11-18 12:59:51,278 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 417 transitions. Word has length 54 [2018-11-18 12:59:51,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:59:51,278 INFO L480 AbstractCegarLoop]: Abstraction has 294 states and 417 transitions. [2018-11-18 12:59:51,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 12:59:51,278 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 417 transitions. [2018-11-18 12:59:51,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-18 12:59:51,280 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:59:51,280 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2018-11-18 12:59:51,281 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:59:51,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:59:51,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1658485495, now seen corresponding path program 1 times [2018-11-18 12:59:51,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:59:51,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:51,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:59:51,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:51,282 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:59:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:59:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:59:51,326 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:59:51,344 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,346 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,346 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,346 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,347 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,347 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,347 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,348 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,348 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,348 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,349 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,349 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,349 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,349 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:59:51 BoogieIcfgContainer [2018-11-18 12:59:51,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:59:51,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:59:51,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:59:51,361 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:59:51,361 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:59:48" (3/4) ... [2018-11-18 12:59:51,364 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 12:59:51,369 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,369 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,369 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,369 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,370 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,370 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,370 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,370 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,371 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,371 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,371 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,371 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,372 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,372 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-18 12:59:51,411 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e9f91870-82a4-4172-bb04-ee83ffb843d6/bin-2019/utaipan/witness.graphml [2018-11-18 12:59:51,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:59:51,412 INFO L168 Benchmark]: Toolchain (without parser) took 2980.38 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 240.6 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 65.9 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:51,414 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:59:51,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.48 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:51,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.33 ms. Allocated memory is still 1.0 GB. Free memory was 948.2 MB in the beginning and 945.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:51,415 INFO L168 Benchmark]: Boogie Preprocessor took 17.26 ms. Allocated memory is still 1.0 GB. Free memory is still 945.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:59:51,415 INFO L168 Benchmark]: RCFGBuilder took 263.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.2 MB). Free memory was 945.5 MB in the beginning and 1.2 GB in the end (delta: -217.4 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:51,415 INFO L168 Benchmark]: TraceAbstraction took 2473.44 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 52.4 MB). Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.3 MB). Peak memory consumption was 76.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:51,415 INFO L168 Benchmark]: Witness Printer took 50.83 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:51,417 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 159.48 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.33 ms. Allocated memory is still 1.0 GB. Free memory was 948.2 MB in the beginning and 945.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.26 ms. Allocated memory is still 1.0 GB. Free memory is still 945.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 263.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.2 MB). Free memory was 945.5 MB in the beginning and 1.2 GB in the end (delta: -217.4 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2473.44 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 52.4 MB). Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.3 MB). Peak memory consumption was 76.8 MB. Max. memory is 11.5 GB. * Witness Printer took 50.83 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int ldv_mutex = 1; [L11] int open_called = 0; VAL [\old(ldv_mutex)=4, \old(open_called)=3, ldv_mutex=1, open_called=0] [L74] int ldv_s_misc_fops_file_operations = 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L75] CALL my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L69] open_called = 0 [L70] RET return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L75] my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, my_init()=0, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L81] COND TRUE ldv_s_misc_fops_file_operations==0 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L82] CALL misc_open() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L57] COND TRUE __VERIFIER_nondet_int() [L59] RET return 1; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=1, ldv_mutex=1, open_called=0] [L82] misc_open() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, misc_open()=1, open_called=0] [L83] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L89] COND TRUE ldv_s_misc_fops_file_operations==1 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L90] CALL misc_read() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L52] RET return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L90] misc_read() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, misc_read()=0, open_called=0] [L91] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L96] case 2: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L97] COND TRUE ldv_s_misc_fops_file_operations==2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L98] CALL misc_llseek() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L48] RET return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L98] misc_llseek() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, misc_llseek()=0, open_called=0] [L99] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L96] case 2: [L104] case 3: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L105] COND TRUE ldv_s_misc_fops_file_operations==3 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L106] CALL misc_release() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L34] COND FALSE !(\read(open_called)) VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L41] CALL mutex_lock() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L16] COND TRUE (ldv_mutex == 1) ? 0 : __blast_assert() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L17] RET ldv_mutex = 2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L41] mutex_lock() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L42] CALL mutex_lock() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L16] COND FALSE !((ldv_mutex == 1) ? 0 : __blast_assert()) VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L16] CALL __blast_assert() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L4] __VERIFIER_error() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 75 locations, 1 error locations. UNSAFE Result, 2.4s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 511 SDtfs, 377 SDslu, 1172 SDs, 0 SdLazy, 229 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 95 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9414343786295005 AbsIntWeakeningRatio, 0.35365853658536583 AbsIntAvgWeakeningVarsNumRemoved, 0.926829268292683 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 59 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 269 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 12598 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 18/26 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...