./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_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 05:48:39,970 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 05:48:39,971 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 05:48:39,977 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 05:48:39,977 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 05:48:39,978 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 05:48:39,978 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 05:48:39,979 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 05:48:39,980 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 05:48:39,980 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 05:48:39,980 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 05:48:39,981 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 05:48:39,981 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 05:48:39,981 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 05:48:39,982 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 05:48:39,982 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 05:48:39,983 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 05:48:39,984 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 05:48:39,984 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 05:48:39,985 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 05:48:39,986 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 05:48:39,986 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 05:48:39,987 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 05:48:39,987 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 05:48:39,987 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 05:48:39,988 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 05:48:39,988 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 05:48:39,989 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 05:48:39,989 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 05:48:39,990 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 05:48:39,990 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 05:48:39,990 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 05:48:39,990 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 05:48:39,990 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 05:48:39,991 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 05:48:39,991 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 05:48:39,991 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 05:48:39,998 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 05:48:39,998 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 05:48:39,999 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 05:48:39,999 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 05:48:39,999 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 05:48:39,999 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 05:48:39,999 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 05:48:40,000 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 05:48:40,000 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 05:48:40,000 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 05:48:40,000 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 05:48:40,000 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 05:48:40,000 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 05:48:40,000 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 05:48:40,000 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 05:48:40,000 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 05:48:40,000 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 05:48:40,000 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 05:48:40,001 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 05:48:40,001 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 05:48:40,001 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 05:48:40,001 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 05:48:40,001 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 05:48:40,001 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 05:48:40,001 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 05:48:40,001 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 05:48:40,001 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 05:48:40,001 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 05:48:40,002 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 05:48:40,002 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 05:48:40,002 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1225f82562543767c482452e9133e4a69d5dae70 [2018-12-09 05:48:40,019 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 05:48:40,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 05:48:40,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 05:48:40,032 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 05:48:40,032 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 05:48:40,033 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i [2018-12-09 05:48:40,073 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer/data/c46b09aa5/549da21419d64c3288fe9400efd5089c/FLAGcedf5bb0d [2018-12-09 05:48:40,484 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 05:48:40,485 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i [2018-12-09 05:48:40,488 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer/data/c46b09aa5/549da21419d64c3288fe9400efd5089c/FLAGcedf5bb0d [2018-12-09 05:48:40,497 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer/data/c46b09aa5/549da21419d64c3288fe9400efd5089c [2018-12-09 05:48:40,499 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 05:48:40,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 05:48:40,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 05:48:40,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 05:48:40,503 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 05:48:40,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:48:40" (1/1) ... [2018-12-09 05:48:40,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770bfda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:48:40, skipping insertion in model container [2018-12-09 05:48:40,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:48:40" (1/1) ... [2018-12-09 05:48:40,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 05:48:40,520 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 05:48:40,610 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 05:48:40,612 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 05:48:40,624 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 05:48:40,632 INFO L195 MainTranslator]: Completed translation [2018-12-09 05:48:40,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:48:40 WrapperNode [2018-12-09 05:48:40,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 05:48:40,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 05:48:40,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 05:48:40,633 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 05:48:40,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:48:40" (1/1) ... [2018-12-09 05:48:40,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:48:40" (1/1) ... [2018-12-09 05:48:40,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 05:48:40,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 05:48:40,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 05:48:40,646 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 05:48:40,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:48:40" (1/1) ... [2018-12-09 05:48:40,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:48:40" (1/1) ... [2018-12-09 05:48:40,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:48:40" (1/1) ... [2018-12-09 05:48:40,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:48:40" (1/1) ... [2018-12-09 05:48:40,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:48:40" (1/1) ... [2018-12-09 05:48:40,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:48:40" (1/1) ... [2018-12-09 05:48:40,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:48:40" (1/1) ... [2018-12-09 05:48:40,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 05:48:40,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 05:48:40,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 05:48:40,690 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 05:48:40,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:48:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 05:48:40,721 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2018-12-09 05:48:40,721 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2018-12-09 05:48:40,722 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2018-12-09 05:48:40,722 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2018-12-09 05:48:40,722 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2018-12-09 05:48:40,722 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2018-12-09 05:48:40,722 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-12-09 05:48:40,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-12-09 05:48:40,722 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 05:48:40,722 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 05:48:40,722 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2018-12-09 05:48:40,722 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2018-12-09 05:48:40,722 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2018-12-09 05:48:40,722 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2018-12-09 05:48:40,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 05:48:40,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 05:48:40,723 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2018-12-09 05:48:40,723 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2018-12-09 05:48:40,723 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2018-12-09 05:48:40,723 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2018-12-09 05:48:40,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 05:48:40,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 05:48:40,723 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2018-12-09 05:48:40,723 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2018-12-09 05:48:40,866 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 05:48:40,866 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 05:48:40,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:48:40 BoogieIcfgContainer [2018-12-09 05:48:40,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 05:48:40,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 05:48:40,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 05:48:40,869 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 05:48:40,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:48:40" (1/3) ... [2018-12-09 05:48:40,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfb81d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:48:40, skipping insertion in model container [2018-12-09 05:48:40,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:48:40" (2/3) ... [2018-12-09 05:48:40,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfb81d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:48:40, skipping insertion in model container [2018-12-09 05:48:40,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:48:40" (3/3) ... [2018-12-09 05:48:40,871 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful_check_false-unreach-call_false-termination.i [2018-12-09 05:48:40,877 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 05:48:40,881 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 05:48:40,890 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 05:48:40,906 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 05:48:40,907 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 05:48:40,907 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 05:48:40,907 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 05:48:40,907 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 05:48:40,907 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 05:48:40,907 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 05:48:40,907 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 05:48:40,907 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 05:48:40,918 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2018-12-09 05:48:40,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 05:48:40,921 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:48:40,922 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 05:48:40,923 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:48:40,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:48:40,926 INFO L82 PathProgramCache]: Analyzing trace with hash 30602986, now seen corresponding path program 1 times [2018-12-09 05:48:40,927 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:48:40,928 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:48:40,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:48:40,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:48:40,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:48:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:48:40,997 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 05:48:40,998 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:48:40,998 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 05:48:41,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 05:48:41,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 05:48:41,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 05:48:41,009 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 2 states. [2018-12-09 05:48:41,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:48:41,026 INFO L93 Difference]: Finished difference Result 135 states and 180 transitions. [2018-12-09 05:48:41,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 05:48:41,027 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-12-09 05:48:41,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 05:48:41,033 INFO L225 Difference]: With dead ends: 135 [2018-12-09 05:48:41,033 INFO L226 Difference]: Without dead ends: 65 [2018-12-09 05:48:41,035 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 05:48:41,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-12-09 05:48:41,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-12-09 05:48:41,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-12-09 05:48:41,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2018-12-09 05:48:41,061 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 16 [2018-12-09 05:48:41,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 05:48:41,061 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2018-12-09 05:48:41,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 05:48:41,061 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2018-12-09 05:48:41,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 05:48:41,061 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:48:41,061 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 05:48:41,062 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:48:41,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:48:41,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1029705375, now seen corresponding path program 1 times [2018-12-09 05:48:41,062 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:48:41,062 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:48:41,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:48:41,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:48:41,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:48:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:48:41,093 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 05:48:41,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:48:41,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 05:48:41,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 05:48:41,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 05:48:41,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 05:48:41,095 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand 3 states. [2018-12-09 05:48:41,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:48:41,120 INFO L93 Difference]: Finished difference Result 108 states and 139 transitions. [2018-12-09 05:48:41,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 05:48:41,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-12-09 05:48:41,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 05:48:41,123 INFO L225 Difference]: With dead ends: 108 [2018-12-09 05:48:41,123 INFO L226 Difference]: Without dead ends: 102 [2018-12-09 05:48:41,123 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 05:48:41,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-12-09 05:48:41,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2018-12-09 05:48:41,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-12-09 05:48:41,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 132 transitions. [2018-12-09 05:48:41,133 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 132 transitions. Word has length 17 [2018-12-09 05:48:41,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 05:48:41,133 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 132 transitions. [2018-12-09 05:48:41,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 05:48:41,134 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 132 transitions. [2018-12-09 05:48:41,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 05:48:41,134 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:48:41,134 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 05:48:41,134 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:48:41,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:48:41,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1653096093, now seen corresponding path program 1 times [2018-12-09 05:48:41,135 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:48:41,135 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:48:41,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:48:41,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:48:41,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:48:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:48:41,157 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 05:48:41,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:48:41,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 05:48:41,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 05:48:41,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 05:48:41,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 05:48:41,158 INFO L87 Difference]: Start difference. First operand 102 states and 132 transitions. Second operand 3 states. [2018-12-09 05:48:41,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:48:41,194 INFO L93 Difference]: Finished difference Result 218 states and 297 transitions. [2018-12-09 05:48:41,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 05:48:41,194 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-12-09 05:48:41,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 05:48:41,195 INFO L225 Difference]: With dead ends: 218 [2018-12-09 05:48:41,195 INFO L226 Difference]: Without dead ends: 127 [2018-12-09 05:48:41,196 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 05:48:41,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-12-09 05:48:41,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2018-12-09 05:48:41,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-12-09 05:48:41,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 169 transitions. [2018-12-09 05:48:41,204 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 169 transitions. Word has length 29 [2018-12-09 05:48:41,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 05:48:41,205 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 169 transitions. [2018-12-09 05:48:41,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 05:48:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 169 transitions. [2018-12-09 05:48:41,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-09 05:48:41,205 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:48:41,205 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 05:48:41,206 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:48:41,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:48:41,206 INFO L82 PathProgramCache]: Analyzing trace with hash -895437069, now seen corresponding path program 1 times [2018-12-09 05:48:41,206 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:48:41,206 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:48:41,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:48:41,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:48:41,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:48:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:48:41,244 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 05:48:41,244 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 05:48:41,244 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 05:48:41,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:48:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:48:41,270 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:48:41,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 05:48:41,300 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 05:48:41,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2018-12-09 05:48:41,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 05:48:41,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 05:48:41,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-12-09 05:48:41,301 INFO L87 Difference]: Start difference. First operand 126 states and 169 transitions. Second operand 5 states. [2018-12-09 05:48:41,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:48:41,345 INFO L93 Difference]: Finished difference Result 292 states and 416 transitions. [2018-12-09 05:48:41,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 05:48:41,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2018-12-09 05:48:41,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 05:48:41,347 INFO L225 Difference]: With dead ends: 292 [2018-12-09 05:48:41,347 INFO L226 Difference]: Without dead ends: 177 [2018-12-09 05:48:41,347 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 [2018-12-09 05:48:41,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-12-09 05:48:41,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 174. [2018-12-09 05:48:41,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-12-09 05:48:41,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 243 transitions. [2018-12-09 05:48:41,358 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 243 transitions. Word has length 40 [2018-12-09 05:48:41,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 05:48:41,358 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 243 transitions. [2018-12-09 05:48:41,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 05:48:41,358 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 243 transitions. [2018-12-09 05:48:41,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 05:48:41,359 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:48:41,359 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 05:48:41,359 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:48:41,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:48:41,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1499338727, now seen corresponding path program 1 times [2018-12-09 05:48:41,360 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:48:41,360 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:48:41,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:48:41,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:48:41,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:48:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:48:41,391 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 05:48:41,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:48:41,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 05:48:41,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 05:48:41,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 05:48:41,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 05:48:41,392 INFO L87 Difference]: Start difference. First operand 174 states and 243 transitions. Second operand 4 states. [2018-12-09 05:48:41,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:48:41,422 INFO L93 Difference]: Finished difference Result 435 states and 639 transitions. [2018-12-09 05:48:41,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 05:48:41,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-12-09 05:48:41,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 05:48:41,424 INFO L225 Difference]: With dead ends: 435 [2018-12-09 05:48:41,424 INFO L226 Difference]: Without dead ends: 272 [2018-12-09 05:48:41,425 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 05:48:41,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-12-09 05:48:41,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 222. [2018-12-09 05:48:41,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-12-09 05:48:41,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 323 transitions. [2018-12-09 05:48:41,435 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 323 transitions. Word has length 51 [2018-12-09 05:48:41,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 05:48:41,436 INFO L480 AbstractCegarLoop]: Abstraction has 222 states and 323 transitions. [2018-12-09 05:48:41,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 05:48:41,436 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 323 transitions. [2018-12-09 05:48:41,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-12-09 05:48:41,437 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 05:48:41,437 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 05:48:41,437 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 05:48:41,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:48:41,437 INFO L82 PathProgramCache]: Analyzing trace with hash -74956011, now seen corresponding path program 1 times [2018-12-09 05:48:41,437 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:48:41,437 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:48:41,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:48:41,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:48:41,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:48:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:48:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:48:41,469 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 05:48:41,484 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 05:48:41,484 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 05:48:41,485 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 05:48:41,485 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 05:48:41,485 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 05:48:41,486 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 05:48:41,486 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 05:48:41,486 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 05:48:41,486 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 05:48:41,487 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 05:48:41,487 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 05:48:41,487 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 05:48:41,488 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 05:48:41,488 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 05:48:41,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:48:41 BoogieIcfgContainer [2018-12-09 05:48:41,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 05:48:41,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 05:48:41,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 05:48:41,494 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 05:48:41,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:48:40" (3/4) ... [2018-12-09 05:48:41,496 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 05:48:41,499 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 05:48:41,499 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 05:48:41,500 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 05:48:41,500 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 05:48:41,500 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 05:48:41,500 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 05:48:41,501 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 05:48:41,501 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 05:48:41,501 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 05:48:41,501 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 05:48:41,502 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 05:48:41,502 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 05:48:41,502 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 05:48:41,502 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 05:48:41,531 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7bf3f663-a1c8-4df4-af58-9ec0fcf2c19b/bin-2019/uautomizer/witness.graphml [2018-12-09 05:48:41,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 05:48:41,532 INFO L168 Benchmark]: Toolchain (without parser) took 1032.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 954.4 MB in the beginning and 971.7 MB in the end (delta: -17.4 MB). Peak memory consumption was 89.1 MB. Max. memory is 11.5 GB. [2018-12-09 05:48:41,533 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 05:48:41,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 132.42 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-12-09 05:48:41,534 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.68 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 05:48:41,534 INFO L168 Benchmark]: Boogie Preprocessor took 43.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -164.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-12-09 05:48:41,534 INFO L168 Benchmark]: RCFGBuilder took 176.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-12-09 05:48:41,534 INFO L168 Benchmark]: TraceAbstraction took 626.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 974.4 MB in the end (delta: 110.3 MB). Peak memory consumption was 110.3 MB. Max. memory is 11.5 GB. [2018-12-09 05:48:41,535 INFO L168 Benchmark]: Witness Printer took 37.45 ms. Allocated memory is still 1.1 GB. Free memory was 974.4 MB in the beginning and 971.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 05:48:41,536 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 132.42 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.68 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -164.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 176.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 626.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 974.4 MB in the end (delta: 110.3 MB). Peak memory consumption was 110.3 MB. Max. memory is 11.5 GB. * Witness Printer took 37.45 ms. Allocated memory is still 1.1 GB. Free memory was 974.4 MB in the beginning and 971.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int ldv_mutex = 1; [L11] int open_called = 0; VAL [\old(ldv_mutex)=4, \old(open_called)=3, ldv_mutex=1, open_called=0] [L74] int ldv_s_misc_fops_file_operations = 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L75] CALL my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L69] open_called = 0 [L70] 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, 0.5s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 389 SDtfs, 141 SDslu, 454 SDs, 0 SdLazy, 93 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 54 StatesRemovedByMinimization, 3 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, 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...