./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 0.1.24-91b1670 [2018-11-28 18:07:08,957 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:07:08,958 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:07:08,980 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:07:08,980 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:07:08,981 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:07:08,983 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:07:08,986 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:07:08,988 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:07:08,989 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:07:08,994 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:07:08,999 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:07:09,000 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:07:09,001 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:07:09,003 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:07:09,004 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:07:09,005 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:07:09,009 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:07:09,011 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:07:09,017 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:07:09,018 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:07:09,020 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:07:09,025 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:07:09,025 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:07:09,025 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:07:09,027 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:07:09,029 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:07:09,035 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:07:09,036 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:07:09,037 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:07:09,037 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:07:09,038 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:07:09,038 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:07:09,038 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:07:09,040 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:07:09,041 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:07:09,041 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:07:09,068 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:07:09,068 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:07:09,069 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:07:09,070 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:07:09,070 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:07:09,070 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:07:09,070 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:07:09,071 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:07:09,071 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:07:09,072 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:07:09,072 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:07:09,072 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:07:09,072 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:07:09,072 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:07:09,073 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:07:09,073 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:07:09,073 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:07:09,073 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:07:09,073 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:07:09,073 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:07:09,075 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:07:09,075 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:07:09,075 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:07:09,075 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:07:09,076 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:07:09,076 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:07:09,076 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:07:09,076 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:07:09,076 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:07:09,076 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:07:09,077 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1225f82562543767c482452e9133e4a69d5dae70 [2018-11-28 18:07:09,135 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:07:09,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:07:09,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:07:09,159 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:07:09,159 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:07:09,160 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i [2018-11-28 18:07:09,233 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf2a19f10/35b9a75822c543ba8a0e50a7f4c72119/FLAG38bc5d336 [2018-11-28 18:07:09,679 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:07:09,681 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i [2018-11-28 18:07:09,692 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf2a19f10/35b9a75822c543ba8a0e50a7f4c72119/FLAG38bc5d336 [2018-11-28 18:07:10,012 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf2a19f10/35b9a75822c543ba8a0e50a7f4c72119 [2018-11-28 18:07:10,017 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:07:10,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:07:10,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:07:10,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:07:10,025 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:07:10,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:07:10" (1/1) ... [2018-11-28 18:07:10,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c5964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:10, skipping insertion in model container [2018-11-28 18:07:10,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:07:10" (1/1) ... [2018-11-28 18:07:10,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:07:10,063 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:07:10,281 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:07:10,289 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:07:10,316 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:07:10,332 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:07:10,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:10 WrapperNode [2018-11-28 18:07:10,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:07:10,334 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:07:10,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:07:10,334 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:07:10,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:10" (1/1) ... [2018-11-28 18:07:10,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:10" (1/1) ... [2018-11-28 18:07:10,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:07:10,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:07:10,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:07:10,359 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:07:10,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:10" (1/1) ... [2018-11-28 18:07:10,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:10" (1/1) ... [2018-11-28 18:07:10,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:10" (1/1) ... [2018-11-28 18:07:10,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:10" (1/1) ... [2018-11-28 18:07:10,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:10" (1/1) ... [2018-11-28 18:07:10,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:10" (1/1) ... [2018-11-28 18:07:10,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:10" (1/1) ... [2018-11-28 18:07:10,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:07:10,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:07:10,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:07:10,388 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:07:10,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 18:07:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2018-11-28 18:07:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2018-11-28 18:07:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2018-11-28 18:07:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2018-11-28 18:07:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2018-11-28 18:07:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2018-11-28 18:07:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-28 18:07:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-28 18:07:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:07:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:07:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2018-11-28 18:07:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2018-11-28 18:07:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2018-11-28 18:07:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2018-11-28 18:07:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:07:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:07:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2018-11-28 18:07:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2018-11-28 18:07:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2018-11-28 18:07:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2018-11-28 18:07:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:07:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:07:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2018-11-28 18:07:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2018-11-28 18:07:11,069 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:07:11,069 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 18:07:11,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:07:11 BoogieIcfgContainer [2018-11-28 18:07:11,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:07:11,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:07:11,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:07:11,074 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:07:11,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:07:10" (1/3) ... [2018-11-28 18:07:11,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f948ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:07:11, skipping insertion in model container [2018-11-28 18:07:11,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:10" (2/3) ... [2018-11-28 18:07:11,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f948ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:07:11, skipping insertion in model container [2018-11-28 18:07:11,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:07:11" (3/3) ... [2018-11-28 18:07:11,077 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful_check_false-unreach-call_false-termination.i [2018-11-28 18:07:11,087 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:07:11,095 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:07:11,110 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:07:11,142 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:07:11,143 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:07:11,143 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:07:11,144 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:07:11,144 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:07:11,144 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:07:11,144 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:07:11,145 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:07:11,145 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:07:11,169 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2018-11-28 18:07:11,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 18:07:11,175 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:07:11,176 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:07:11,178 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:07:11,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:07:11,184 INFO L82 PathProgramCache]: Analyzing trace with hash 30602986, now seen corresponding path program 1 times [2018-11-28 18:07:11,186 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:07:11,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:07:11,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:11,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:07:11,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:07:11,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:07:11,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:07:11,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:07:11,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:07:11,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:07:11,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:07:11,339 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 2 states. [2018-11-28 18:07:11,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:07:11,374 INFO L93 Difference]: Finished difference Result 135 states and 180 transitions. [2018-11-28 18:07:11,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:07:11,376 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-28 18:07:11,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:07:11,386 INFO L225 Difference]: With dead ends: 135 [2018-11-28 18:07:11,387 INFO L226 Difference]: Without dead ends: 65 [2018-11-28 18:07:11,391 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 [2018-11-28 18:07:11,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-28 18:07:11,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-11-28 18:07:11,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-28 18:07:11,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2018-11-28 18:07:11,445 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 16 [2018-11-28 18:07:11,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:07:11,446 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2018-11-28 18:07:11,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:07:11,446 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2018-11-28 18:07:11,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 18:07:11,447 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:07:11,447 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:07:11,447 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:07:11,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:07:11,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1029705375, now seen corresponding path program 1 times [2018-11-28 18:07:11,448 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:07:11,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:07:11,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:11,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:07:11,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:07:11,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:07:11,561 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:07:11,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:07:11,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:07:11,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:07:11,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:07:11,564 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand 3 states. [2018-11-28 18:07:11,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:07:11,706 INFO L93 Difference]: Finished difference Result 108 states and 139 transitions. [2018-11-28 18:07:11,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:07:11,707 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-11-28 18:07:11,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:07:11,711 INFO L225 Difference]: With dead ends: 108 [2018-11-28 18:07:11,712 INFO L226 Difference]: Without dead ends: 102 [2018-11-28 18:07:11,713 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 [2018-11-28 18:07:11,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-11-28 18:07:11,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2018-11-28 18:07:11,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-11-28 18:07:11,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 132 transitions. [2018-11-28 18:07:11,735 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 132 transitions. Word has length 17 [2018-11-28 18:07:11,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:07:11,735 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 132 transitions. [2018-11-28 18:07:11,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:07:11,736 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 132 transitions. [2018-11-28 18:07:11,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-28 18:07:11,737 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:07:11,737 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] [2018-11-28 18:07:11,738 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:07:11,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:07:11,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1653096093, now seen corresponding path program 1 times [2018-11-28 18:07:11,738 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:07:11,738 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:07:11,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:11,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:07:11,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:07:11,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:07:11,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:07:11,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:07:11,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:07:11,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:07:11,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:07:11,834 INFO L87 Difference]: Start difference. First operand 102 states and 132 transitions. Second operand 3 states. [2018-11-28 18:07:12,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:07:12,099 INFO L93 Difference]: Finished difference Result 218 states and 297 transitions. [2018-11-28 18:07:12,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:07:12,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-11-28 18:07:12,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:07:12,103 INFO L225 Difference]: With dead ends: 218 [2018-11-28 18:07:12,103 INFO L226 Difference]: Without dead ends: 127 [2018-11-28 18:07:12,105 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 [2018-11-28 18:07:12,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-11-28 18:07:12,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2018-11-28 18:07:12,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-11-28 18:07:12,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 169 transitions. [2018-11-28 18:07:12,124 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 169 transitions. Word has length 29 [2018-11-28 18:07:12,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:07:12,125 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 169 transitions. [2018-11-28 18:07:12,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:07:12,125 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 169 transitions. [2018-11-28 18:07:12,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-28 18:07:12,127 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:07:12,127 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] [2018-11-28 18:07:12,128 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:07:12,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:07:12,128 INFO L82 PathProgramCache]: Analyzing trace with hash -895437069, now seen corresponding path program 1 times [2018-11-28 18:07:12,128 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:07:12,128 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:07:12,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:12,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:07:12,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:07:12,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:07:12,260 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:07:12,260 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 18:07:12,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:07:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:07:12,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:07:12,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 18:07:12,410 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:07:12,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2018-11-28 18:07:12,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 18:07:12,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 18:07:12,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 18:07:12,413 INFO L87 Difference]: Start difference. First operand 126 states and 169 transitions. Second operand 5 states. [2018-11-28 18:07:12,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:07:12,719 INFO L93 Difference]: Finished difference Result 292 states and 416 transitions. [2018-11-28 18:07:12,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 18:07:12,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2018-11-28 18:07:12,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:07:12,722 INFO L225 Difference]: With dead ends: 292 [2018-11-28 18:07:12,722 INFO L226 Difference]: Without dead ends: 177 [2018-11-28 18:07:12,724 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 18:07:12,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-11-28 18:07:12,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 174. [2018-11-28 18:07:12,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-11-28 18:07:12,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 243 transitions. [2018-11-28 18:07:12,765 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 243 transitions. Word has length 40 [2018-11-28 18:07:12,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:07:12,765 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 243 transitions. [2018-11-28 18:07:12,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 18:07:12,766 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 243 transitions. [2018-11-28 18:07:12,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-28 18:07:12,770 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:07:12,770 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] [2018-11-28 18:07:12,770 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:07:12,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:07:12,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1499338727, now seen corresponding path program 1 times [2018-11-28 18:07:12,773 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:07:12,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:07:12,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:12,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:07:12,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:07:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-28 18:07:12,892 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:07:12,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 18:07:12,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 18:07:12,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 18:07:12,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 18:07:12,895 INFO L87 Difference]: Start difference. First operand 174 states and 243 transitions. Second operand 4 states. [2018-11-28 18:07:13,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:07:13,141 INFO L93 Difference]: Finished difference Result 435 states and 639 transitions. [2018-11-28 18:07:13,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 18:07:13,142 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-11-28 18:07:13,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:07:13,146 INFO L225 Difference]: With dead ends: 435 [2018-11-28 18:07:13,150 INFO L226 Difference]: Without dead ends: 272 [2018-11-28 18:07:13,156 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 [2018-11-28 18:07:13,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-11-28 18:07:13,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 222. [2018-11-28 18:07:13,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-11-28 18:07:13,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 323 transitions. [2018-11-28 18:07:13,198 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 323 transitions. Word has length 51 [2018-11-28 18:07:13,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:07:13,198 INFO L480 AbstractCegarLoop]: Abstraction has 222 states and 323 transitions. [2018-11-28 18:07:13,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 18:07:13,198 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 323 transitions. [2018-11-28 18:07:13,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-28 18:07:13,202 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:07:13,202 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] [2018-11-28 18:07:13,202 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:07:13,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:07:13,204 INFO L82 PathProgramCache]: Analyzing trace with hash -74956011, now seen corresponding path program 1 times [2018-11-28 18:07:13,204 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:07:13,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:07:13,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:13,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:07:13,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:07:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:07:13,314 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:07:13,356 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 [2018-11-28 18:07:13,358 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 [2018-11-28 18:07:13,358 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 [2018-11-28 18:07:13,359 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 [2018-11-28 18:07:13,359 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 [2018-11-28 18:07:13,360 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 [2018-11-28 18:07:13,360 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 [2018-11-28 18:07:13,361 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 [2018-11-28 18:07:13,361 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 [2018-11-28 18:07:13,361 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 [2018-11-28 18:07:13,362 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 [2018-11-28 18:07:13,362 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 [2018-11-28 18:07:13,363 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 [2018-11-28 18:07:13,363 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 [2018-11-28 18:07:13,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:07:13 BoogieIcfgContainer [2018-11-28 18:07:13,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:07:13,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:07:13,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:07:13,379 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:07:13,379 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:07:11" (3/4) ... [2018-11-28 18:07:13,382 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 18:07:13,390 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 [2018-11-28 18:07:13,390 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 [2018-11-28 18:07:13,391 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 [2018-11-28 18:07:13,391 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 [2018-11-28 18:07:13,392 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 [2018-11-28 18:07:13,392 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 [2018-11-28 18:07:13,393 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 [2018-11-28 18:07:13,393 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 [2018-11-28 18:07:13,393 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 [2018-11-28 18:07:13,394 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 [2018-11-28 18:07:13,394 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 [2018-11-28 18:07:13,395 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 [2018-11-28 18:07:13,395 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 [2018-11-28 18:07:13,395 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 [2018-11-28 18:07:13,481 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:07:13,485 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:07:13,487 INFO L168 Benchmark]: Toolchain (without parser) took 3469.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 951.3 MB in the beginning and 962.2 MB in the end (delta: -10.9 MB). Peak memory consumption was 92.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:13,489 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:13,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.07 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:13,490 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.70 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:13,497 INFO L168 Benchmark]: Boogie Preprocessor took 28.13 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:13,497 INFO L168 Benchmark]: RCFGBuilder took 682.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -129.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:13,498 INFO L168 Benchmark]: TraceAbstraction took 2307.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 962.2 MB in the end (delta: 102.9 MB). Peak memory consumption was 102.9 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:13,501 INFO L168 Benchmark]: Witness Printer took 107.02 ms. Allocated memory is still 1.1 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:13,507 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 314.07 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.70 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.13 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 682.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -129.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2307.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 962.2 MB in the end (delta: 102.9 MB). Peak memory consumption was 102.9 MB. Max. memory is 11.5 GB. * Witness Printer took 107.02 ms. Allocated memory is still 1.1 GB. Free memory is still 962.2 MB. 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, 2.2s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 389 SDtfs, 141 SDslu, 454 SDs, 0 SdLazy, 93 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 54 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 11127 SizeOfPredicates, 1 NumberOfNonLiveVariables, 116 ConjunctsInSsa, 3 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...