./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_df944ce7-6bd5-4346-89e8-38b48580367d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_df944ce7-6bd5-4346-89e8-38b48580367d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_df944ce7-6bd5-4346-89e8-38b48580367d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_df944ce7-6bd5-4346-89e8-38b48580367d/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_df944ce7-6bd5-4346-89e8-38b48580367d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_df944ce7-6bd5-4346-89e8-38b48580367d/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 0.1.23-635dfa2 [2018-12-09 19:12:52,521 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:12:52,522 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:12:52,531 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:12:52,531 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:12:52,532 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:12:52,532 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:12:52,533 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:12:52,534 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:12:52,534 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:12:52,535 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:12:52,535 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:12:52,535 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:12:52,536 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:12:52,536 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:12:52,537 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:12:52,537 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:12:52,538 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:12:52,539 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:12:52,540 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:12:52,540 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:12:52,541 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:12:52,542 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:12:52,542 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:12:52,542 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:12:52,543 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:12:52,543 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:12:52,544 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:12:52,544 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:12:52,545 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:12:52,545 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:12:52,545 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:12:52,545 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:12:52,545 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:12:52,546 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:12:52,546 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:12:52,546 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_df944ce7-6bd5-4346-89e8-38b48580367d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:12:52,554 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:12:52,554 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:12:52,554 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:12:52,554 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:12:52,554 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:12:52,555 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:12:52,555 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:12:52,555 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:12:52,555 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:12:52,555 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:12:52,555 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:12:52,555 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:12:52,555 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:12:52,556 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:12:52,556 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:12:52,556 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:12:52,556 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:12:52,556 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:12:52,556 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:12:52,557 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:12:52,557 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:12:52,557 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:12:52,557 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:12:52,557 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:12:52,557 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:12:52,557 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:12:52,558 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:12:52,558 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:12:52,558 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:12:52,558 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:12:52,558 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:12:52,558 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:12:52,558 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:12:52,558 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:12:52,559 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:12:52,559 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:12:52,559 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_df944ce7-6bd5-4346-89e8-38b48580367d/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 [2018-12-09 19:12:52,577 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:12:52,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:12:52,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:12:52,590 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:12:52,590 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:12:52,590 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_df944ce7-6bd5-4346-89e8-38b48580367d/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i [2018-12-09 19:12:52,634 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_df944ce7-6bd5-4346-89e8-38b48580367d/bin-2019/utaipan/data/cb0ec927e/b3f92740ab9742328c5da8da6aa1fe68/FLAG89b4b011f [2018-12-09 19:12:53,061 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:12:53,061 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_df944ce7-6bd5-4346-89e8-38b48580367d/sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i [2018-12-09 19:12:53,065 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_df944ce7-6bd5-4346-89e8-38b48580367d/bin-2019/utaipan/data/cb0ec927e/b3f92740ab9742328c5da8da6aa1fe68/FLAG89b4b011f [2018-12-09 19:12:53,073 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_df944ce7-6bd5-4346-89e8-38b48580367d/bin-2019/utaipan/data/cb0ec927e/b3f92740ab9742328c5da8da6aa1fe68 [2018-12-09 19:12:53,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:12:53,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:12:53,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:12:53,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:12:53,079 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:12:53,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:12:53" (1/1) ... [2018-12-09 19:12:53,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34882f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:12:53, skipping insertion in model container [2018-12-09 19:12:53,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:12:53" (1/1) ... [2018-12-09 19:12:53,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:12:53,096 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:12:53,184 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:12:53,186 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:12:53,197 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:12:53,206 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:12:53,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:12:53 WrapperNode [2018-12-09 19:12:53,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:12:53,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:12:53,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:12:53,207 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:12:53,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:12:53" (1/1) ... [2018-12-09 19:12:53,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:12:53" (1/1) ... [2018-12-09 19:12:53,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:12:53,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:12:53,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:12:53,219 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:12:53,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:12:53" (1/1) ... [2018-12-09 19:12:53,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:12:53" (1/1) ... [2018-12-09 19:12:53,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:12:53" (1/1) ... [2018-12-09 19:12:53,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:12:53" (1/1) ... [2018-12-09 19:12:53,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:12:53" (1/1) ... [2018-12-09 19:12:53,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:12:53" (1/1) ... [2018-12-09 19:12:53,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:12:53" (1/1) ... [2018-12-09 19:12:53,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:12:53,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:12:53,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:12:53,261 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:12:53,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:12:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_df944ce7-6bd5-4346-89e8-38b48580367d/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 [2018-12-09 19:12:53,291 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2018-12-09 19:12:53,291 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2018-12-09 19:12:53,291 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2018-12-09 19:12:53,291 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2018-12-09 19:12:53,291 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2018-12-09 19:12:53,292 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2018-12-09 19:12:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-12-09 19:12:53,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-12-09 19:12:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:12:53,292 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:12:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2018-12-09 19:12:53,292 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2018-12-09 19:12:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2018-12-09 19:12:53,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2018-12-09 19:12:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:12:53,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:12:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2018-12-09 19:12:53,292 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2018-12-09 19:12:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2018-12-09 19:12:53,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2018-12-09 19:12:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:12:53,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:12:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2018-12-09 19:12:53,293 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2018-12-09 19:12:53,427 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:12:53,427 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 19:12:53,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:12:53 BoogieIcfgContainer [2018-12-09 19:12:53,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:12:53,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:12:53,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:12:53,430 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:12:53,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:12:53" (1/3) ... [2018-12-09 19:12:53,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f807d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:12:53, skipping insertion in model container [2018-12-09 19:12:53,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:12:53" (2/3) ... [2018-12-09 19:12:53,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f807d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:12:53, skipping insertion in model container [2018-12-09 19:12:53,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:12:53" (3/3) ... [2018-12-09 19:12:53,432 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful_check_false-unreach-call_false-termination.i [2018-12-09 19:12:53,438 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:12:53,442 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:12:53,452 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:12:53,472 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:12:53,472 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:12:53,472 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:12:53,472 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:12:53,472 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:12:53,472 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:12:53,472 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:12:53,473 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:12:53,484 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2018-12-09 19:12:53,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 19:12:53,487 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:12:53,487 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:12:53,489 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:12:53,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:12:53,492 INFO L82 PathProgramCache]: Analyzing trace with hash 30602986, now seen corresponding path program 1 times [2018-12-09 19:12:53,493 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:12:53,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:12:53,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:12:53,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:12:53,521 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:12:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:12:53,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:12:53,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:12:53,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:12:53,563 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:12:53,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:12:53,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:12:53,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:12:53,575 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 2 states. [2018-12-09 19:12:53,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:12:53,596 INFO L93 Difference]: Finished difference Result 135 states and 180 transitions. [2018-12-09 19:12:53,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:12:53,597 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-12-09 19:12:53,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:12:53,604 INFO L225 Difference]: With dead ends: 135 [2018-12-09 19:12:53,604 INFO L226 Difference]: Without dead ends: 65 [2018-12-09 19:12:53,607 INFO L631 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 [2018-12-09 19:12:53,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-12-09 19:12:53,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-12-09 19:12:53,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-12-09 19:12:53,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2018-12-09 19:12:53,636 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 16 [2018-12-09 19:12:53,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:12:53,636 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2018-12-09 19:12:53,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:12:53,637 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2018-12-09 19:12:53,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 19:12:53,637 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:12:53,637 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:12:53,638 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:12:53,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:12:53,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1029705375, now seen corresponding path program 1 times [2018-12-09 19:12:53,638 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:12:53,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:12:53,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:12:53,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:12:53,639 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:12:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:12:53,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:12:53,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:12:53,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:12:53,680 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:12:53,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:12:53,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:12:53,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:12:53,682 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand 3 states. [2018-12-09 19:12:53,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:12:53,710 INFO L93 Difference]: Finished difference Result 108 states and 139 transitions. [2018-12-09 19:12:53,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:12:53,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-12-09 19:12:53,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:12:53,713 INFO L225 Difference]: With dead ends: 108 [2018-12-09 19:12:53,713 INFO L226 Difference]: Without dead ends: 102 [2018-12-09 19:12:53,714 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:12:53,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-12-09 19:12:53,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2018-12-09 19:12:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-12-09 19:12:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 132 transitions. [2018-12-09 19:12:53,728 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 132 transitions. Word has length 17 [2018-12-09 19:12:53,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:12:53,729 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 132 transitions. [2018-12-09 19:12:53,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:12:53,729 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 132 transitions. [2018-12-09 19:12:53,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 19:12:53,730 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:12:53,730 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:12:53,730 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:12:53,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:12:53,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1653096093, now seen corresponding path program 1 times [2018-12-09 19:12:53,731 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:12:53,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:12:53,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:12:53,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:12:53,732 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:12:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:12:53,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:12:53,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:12:53,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:12:53,762 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:12:53,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:12:53,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:12:53,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:12:53,762 INFO L87 Difference]: Start difference. First operand 102 states and 132 transitions. Second operand 3 states. [2018-12-09 19:12:53,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:12:53,792 INFO L93 Difference]: Finished difference Result 218 states and 297 transitions. [2018-12-09 19:12:53,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:12:53,792 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-12-09 19:12:53,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:12:53,793 INFO L225 Difference]: With dead ends: 218 [2018-12-09 19:12:53,793 INFO L226 Difference]: Without dead ends: 127 [2018-12-09 19:12:53,794 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:12:53,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-12-09 19:12:53,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2018-12-09 19:12:53,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-12-09 19:12:53,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 169 transitions. [2018-12-09 19:12:53,803 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 169 transitions. Word has length 29 [2018-12-09 19:12:53,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:12:53,803 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 169 transitions. [2018-12-09 19:12:53,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:12:53,803 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 169 transitions. [2018-12-09 19:12:53,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-09 19:12:53,803 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:12:53,804 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 19:12:53,804 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:12:53,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:12:53,804 INFO L82 PathProgramCache]: Analyzing trace with hash -895437069, now seen corresponding path program 1 times [2018-12-09 19:12:53,804 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:12:53,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:12:53,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:12:53,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:12:53,805 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:12:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:12:53,838 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:12:53,839 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:12:53,839 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:12:53,839 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 41 with the following transitions: [2018-12-09 19:12:53,840 INFO L205 CegarAbsIntRunner]: [18], [24], [25], [26], [29], [31], [34], [36], [39], [40], [49], [55], [57], [62], [67], [70], [73], [75], [80], [93], [106], [109], [112], [126], [133], [134], [143], [144], [145], [147], [151], [152], [153], [155], [156], [157], [158], [163] [2018-12-09 19:12:53,859 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:12:53,859 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:12:53,975 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 19:12:53,976 INFO L272 AbstractInterpreter]: Visited 27 different actions 43 times. Merged at 11 different actions 11 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. [2018-12-09 19:12:53,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:12:53,981 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 19:12:54,045 INFO L227 lantSequenceWeakener]: Weakened 27 states. On average, predicates are now at 46.53% of their original sizes. [2018-12-09 19:12:54,045 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 19:12:54,097 INFO L418 sIntCurrentIteration]: We unified 39 AI predicates to 39 [2018-12-09 19:12:54,097 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 19:12:54,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 19:12:54,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2018-12-09 19:12:54,097 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:12:54,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 19:12:54,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 19:12:54,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-12-09 19:12:54,098 INFO L87 Difference]: Start difference. First operand 126 states and 169 transitions. Second operand 12 states. [2018-12-09 19:12:54,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:12:54,530 INFO L93 Difference]: Finished difference Result 285 states and 394 transitions. [2018-12-09 19:12:54,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 19:12:54,531 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2018-12-09 19:12:54,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:12:54,532 INFO L225 Difference]: With dead ends: 285 [2018-12-09 19:12:54,532 INFO L226 Difference]: Without dead ends: 170 [2018-12-09 19:12:54,533 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-12-09 19:12:54,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-12-09 19:12:54,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2018-12-09 19:12:54,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-12-09 19:12:54,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 227 transitions. [2018-12-09 19:12:54,546 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 227 transitions. Word has length 40 [2018-12-09 19:12:54,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:12:54,546 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 227 transitions. [2018-12-09 19:12:54,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 19:12:54,547 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 227 transitions. [2018-12-09 19:12:54,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-09 19:12:54,547 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:12:54,547 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 19:12:54,548 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:12:54,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:12:54,548 INFO L82 PathProgramCache]: Analyzing trace with hash 349327412, now seen corresponding path program 1 times [2018-12-09 19:12:54,548 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:12:54,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:12:54,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:12:54,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:12:54,549 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:12:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:12:54,589 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:12:54,590 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:12:54,590 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:12:54,590 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 41 with the following transitions: [2018-12-09 19:12:54,590 INFO L205 CegarAbsIntRunner]: [18], [24], [25], [26], [30], [31], [34], [36], [39], [40], [49], [55], [57], [62], [67], [70], [73], [75], [80], [93], [106], [109], [112], [126], [133], [134], [143], [144], [145], [147], [151], [152], [153], [155], [156], [157], [158], [163] [2018-12-09 19:12:54,592 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:12:54,592 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:12:54,622 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 19:12:54,622 INFO L272 AbstractInterpreter]: Visited 27 different actions 43 times. Merged at 11 different actions 11 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. [2018-12-09 19:12:54,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:12:54,624 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 19:12:54,657 INFO L227 lantSequenceWeakener]: Weakened 27 states. On average, predicates are now at 53.93% of their original sizes. [2018-12-09 19:12:54,657 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 19:12:54,702 INFO L418 sIntCurrentIteration]: We unified 39 AI predicates to 39 [2018-12-09 19:12:54,702 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 19:12:54,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 19:12:54,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2018-12-09 19:12:54,703 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:12:54,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 19:12:54,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 19:12:54,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:12:54,703 INFO L87 Difference]: Start difference. First operand 168 states and 227 transitions. Second operand 11 states. [2018-12-09 19:12:55,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:12:55,118 INFO L93 Difference]: Finished difference Result 366 states and 512 transitions. [2018-12-09 19:12:55,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 19:12:55,119 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 40 [2018-12-09 19:12:55,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:12:55,120 INFO L225 Difference]: With dead ends: 366 [2018-12-09 19:12:55,120 INFO L226 Difference]: Without dead ends: 209 [2018-12-09 19:12:55,121 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:12:55,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-12-09 19:12:55,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2018-12-09 19:12:55,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2018-12-09 19:12:55,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 283 transitions. [2018-12-09 19:12:55,131 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 283 transitions. Word has length 40 [2018-12-09 19:12:55,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:12:55,131 INFO L480 AbstractCegarLoop]: Abstraction has 207 states and 283 transitions. [2018-12-09 19:12:55,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 19:12:55,132 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 283 transitions. [2018-12-09 19:12:55,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 19:12:55,133 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:12:55,133 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 19:12:55,133 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:12:55,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:12:55,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1499338727, now seen corresponding path program 1 times [2018-12-09 19:12:55,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:12:55,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:12:55,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:12:55,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:12:55,135 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:12:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:12:55,169 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 19:12:55,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:12:55,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:12:55,169 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:12:55,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:12:55,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:12:55,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:12:55,170 INFO L87 Difference]: Start difference. First operand 207 states and 283 transitions. Second operand 4 states. [2018-12-09 19:12:55,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:12:55,206 INFO L93 Difference]: Finished difference Result 525 states and 755 transitions. [2018-12-09 19:12:55,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 19:12:55,206 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-12-09 19:12:55,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:12:55,208 INFO L225 Difference]: With dead ends: 525 [2018-12-09 19:12:55,208 INFO L226 Difference]: Without dead ends: 329 [2018-12-09 19:12:55,209 INFO L631 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 [2018-12-09 19:12:55,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2018-12-09 19:12:55,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 279. [2018-12-09 19:12:55,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2018-12-09 19:12:55,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 402 transitions. [2018-12-09 19:12:55,219 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 402 transitions. Word has length 51 [2018-12-09 19:12:55,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:12:55,220 INFO L480 AbstractCegarLoop]: Abstraction has 279 states and 402 transitions. [2018-12-09 19:12:55,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:12:55,220 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 402 transitions. [2018-12-09 19:12:55,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-12-09 19:12:55,221 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:12:55,222 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 19:12:55,222 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:12:55,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:12:55,222 INFO L82 PathProgramCache]: Analyzing trace with hash -74956011, now seen corresponding path program 1 times [2018-12-09 19:12:55,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:12:55,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:12:55,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:12:55,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:12:55,223 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:12:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:12:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:12:55,257 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:12:55,271 WARN L1298 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 [2018-12-09 19:12:55,272 WARN L1298 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 [2018-12-09 19:12:55,272 WARN L1298 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 [2018-12-09 19:12:55,273 WARN L1298 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 [2018-12-09 19:12:55,273 WARN L1298 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 [2018-12-09 19:12:55,273 WARN L1298 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 [2018-12-09 19:12:55,273 WARN L1298 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 [2018-12-09 19:12:55,273 WARN L1298 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 [2018-12-09 19:12:55,274 WARN L1298 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 [2018-12-09 19:12:55,274 WARN L1298 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 [2018-12-09 19:12:55,274 WARN L1298 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 [2018-12-09 19:12:55,274 WARN L1298 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 [2018-12-09 19:12:55,274 WARN L1298 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 [2018-12-09 19:12:55,274 WARN L1298 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 [2018-12-09 19:12:55,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:12:55 BoogieIcfgContainer [2018-12-09 19:12:55,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:12:55,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:12:55,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:12:55,281 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:12:55,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:12:53" (3/4) ... [2018-12-09 19:12:55,284 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 19:12:55,287 WARN L1298 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 [2018-12-09 19:12:55,287 WARN L1298 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 [2018-12-09 19:12:55,287 WARN L1298 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 [2018-12-09 19:12:55,287 WARN L1298 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 [2018-12-09 19:12:55,287 WARN L1298 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 [2018-12-09 19:12:55,287 WARN L1298 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 [2018-12-09 19:12:55,288 WARN L1298 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 [2018-12-09 19:12:55,288 WARN L1298 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 [2018-12-09 19:12:55,288 WARN L1298 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 [2018-12-09 19:12:55,288 WARN L1298 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 [2018-12-09 19:12:55,288 WARN L1298 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 [2018-12-09 19:12:55,288 WARN L1298 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 [2018-12-09 19:12:55,289 WARN L1298 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 [2018-12-09 19:12:55,289 WARN L1298 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 [2018-12-09 19:12:55,321 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_df944ce7-6bd5-4346-89e8-38b48580367d/bin-2019/utaipan/witness.graphml [2018-12-09 19:12:55,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:12:55,322 INFO L168 Benchmark]: Toolchain (without parser) took 2246.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.5 MB). Free memory was 957.7 MB in the beginning and 1.2 GB in the end (delta: -192.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:12:55,323 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:12:55,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 129.61 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 945.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:12:55,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.21 ms. Allocated memory is still 1.0 GB. Free memory is still 945.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:12:55,324 INFO L168 Benchmark]: Boogie Preprocessor took 41.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:12:55,324 INFO L168 Benchmark]: RCFGBuilder took 167.32 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:12:55,325 INFO L168 Benchmark]: TraceAbstraction took 1852.80 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -50.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2018-12-09 19:12:55,325 INFO L168 Benchmark]: Witness Printer took 40.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:12:55,327 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 129.61 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 945.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.21 ms. Allocated memory is still 1.0 GB. Free memory is still 945.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 167.32 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1852.80 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -50.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * Witness Printer took 40.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. 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] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L75] RET 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] return 1; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=1, ldv_mutex=1, open_called=0] [L82] RET 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] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L90] RET 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] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L98] RET 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] (ldv_mutex == 1) ? 0 : __blast_assert() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L17] ldv_mutex = 2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L41] RET 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] (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, 74 locations, 1 error locations. UNSAFE Result, 1.8s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 503 SDtfs, 340 SDslu, 1022 SDs, 0 SdLazy, 188 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 91 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=279occurred 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, 0.9384310134310132 AbsIntWeakeningRatio, 0.3717948717948718 AbsIntAvgWeakeningVarsNumRemoved, 0.9743589743589743 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 55 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 11127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 15/21 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...