./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test29_false-unreach-call_true-termination.c --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_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test29_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/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 2aa6c4430411ceeb023b25a4c3a2c7228d94ed35 ........................................................................................................................................................................................................................................................................................................................... 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 [2018-12-08 23:56:43,793 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:56:43,794 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:56:43,800 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:56:43,800 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:56:43,801 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:56:43,801 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:56:43,802 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:56:43,803 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:56:43,803 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:56:43,804 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:56:43,804 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:56:43,805 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:56:43,805 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:56:43,806 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:56:43,806 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:56:43,807 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:56:43,808 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:56:43,809 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:56:43,809 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:56:43,810 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:56:43,811 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:56:43,812 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:56:43,812 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:56:43,812 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:56:43,812 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:56:43,813 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:56:43,813 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:56:43,814 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:56:43,815 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:56:43,815 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:56:43,815 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:56:43,815 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:56:43,815 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:56:43,816 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:56:43,816 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:56:43,817 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 23:56:43,824 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:56:43,824 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:56:43,824 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 23:56:43,825 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 23:56:43,825 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 23:56:43,825 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 23:56:43,825 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 23:56:43,825 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:56:43,826 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 23:56:43,826 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 23:56:43,826 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 23:56:43,826 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:56:43,826 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 23:56:43,826 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 23:56:43,826 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 23:56:43,826 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 23:56:43,827 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 23:56:43,827 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 23:56:43,827 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 23:56:43,827 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:56:43,827 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:56:43,827 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 23:56:43,827 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 23:56:43,827 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:56:43,828 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:56:43,828 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 23:56:43,828 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 23:56:43,828 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 23:56:43,828 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 23:56:43,828 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 23:56:43,828 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_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/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 -> 2aa6c4430411ceeb023b25a4c3a2c7228d94ed35 [2018-12-08 23:56:43,847 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:56:43,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:56:43,858 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:56:43,859 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:56:43,859 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:56:43,860 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/test29_false-unreach-call_true-termination.c [2018-12-08 23:56:43,899 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/bin-2019/uautomizer/data/4c3cb6d96/77501552e48f45eeb6aa94540306bbac/FLAG9fb6fa5ba [2018-12-08 23:56:44,244 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:56:44,244 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/sv-benchmarks/c/ldv-regression/test29_false-unreach-call_true-termination.c [2018-12-08 23:56:44,247 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/bin-2019/uautomizer/data/4c3cb6d96/77501552e48f45eeb6aa94540306bbac/FLAG9fb6fa5ba [2018-12-08 23:56:44,646 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/bin-2019/uautomizer/data/4c3cb6d96/77501552e48f45eeb6aa94540306bbac [2018-12-08 23:56:44,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:56:44,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:56:44,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:56:44,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:56:44,652 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:56:44,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:56:44" (1/1) ... [2018-12-08 23:56:44,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd688bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:44, skipping insertion in model container [2018-12-08 23:56:44,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:56:44" (1/1) ... [2018-12-08 23:56:44,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:56:44,673 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:56:44,762 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:56:44,768 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:56:44,777 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:56:44,785 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:56:44,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:44 WrapperNode [2018-12-08 23:56:44,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:56:44,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:56:44,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:56:44,786 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:56:44,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:44" (1/1) ... [2018-12-08 23:56:44,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:44" (1/1) ... [2018-12-08 23:56:44,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:56:44,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:56:44,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:56:44,800 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:56:44,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:44" (1/1) ... [2018-12-08 23:56:44,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:44" (1/1) ... [2018-12-08 23:56:44,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:44" (1/1) ... [2018-12-08 23:56:44,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:44" (1/1) ... [2018-12-08 23:56:44,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:44" (1/1) ... [2018-12-08 23:56:44,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:44" (1/1) ... [2018-12-08 23:56:44,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:44" (1/1) ... [2018-12-08 23:56:44,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:56:44,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:56:44,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:56:44,813 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:56:44,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/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 [2018-12-08 23:56:44,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 23:56:44,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 23:56:44,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 23:56:44,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 23:56:44,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:56:44,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:56:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 23:56:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 23:56:44,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 23:56:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 23:56:44,969 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:56:44,969 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 23:56:44,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:56:44 BoogieIcfgContainer [2018-12-08 23:56:44,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:56:44,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 23:56:44,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 23:56:44,972 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 23:56:44,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:56:44" (1/3) ... [2018-12-08 23:56:44,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465dea62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:56:44, skipping insertion in model container [2018-12-08 23:56:44,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:44" (2/3) ... [2018-12-08 23:56:44,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465dea62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:56:44, skipping insertion in model container [2018-12-08 23:56:44,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:56:44" (3/3) ... [2018-12-08 23:56:44,974 INFO L112 eAbstractionObserver]: Analyzing ICFG test29_false-unreach-call_true-termination.c [2018-12-08 23:56:44,980 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 23:56:44,985 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 23:56:44,995 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 23:56:45,012 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 23:56:45,012 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 23:56:45,012 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 23:56:45,012 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 23:56:45,013 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:56:45,013 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:56:45,013 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 23:56:45,013 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:56:45,013 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 23:56:45,023 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-08 23:56:45,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 23:56:45,026 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:56:45,027 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:56:45,028 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:56:45,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:56:45,032 INFO L82 PathProgramCache]: Analyzing trace with hash 668850033, now seen corresponding path program 1 times [2018-12-08 23:56:45,033 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:56:45,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:56:45,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:56:45,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:56:45,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:56:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:56:45,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:56:45,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:56:45,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 23:56:45,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:56:45,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:56:45,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:56:45,154 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2018-12-08 23:56:45,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:56:45,191 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2018-12-08 23:56:45,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 23:56:45,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-12-08 23:56:45,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:56:45,197 INFO L225 Difference]: With dead ends: 34 [2018-12-08 23:56:45,197 INFO L226 Difference]: Without dead ends: 21 [2018-12-08 23:56:45,199 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:56:45,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-08 23:56:45,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2018-12-08 23:56:45,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-08 23:56:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-12-08 23:56:45,221 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2018-12-08 23:56:45,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:56:45,221 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-12-08 23:56:45,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:56:45,221 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-08 23:56:45,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 23:56:45,222 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:56:45,222 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:56:45,222 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:56:45,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:56:45,222 INFO L82 PathProgramCache]: Analyzing trace with hash 667002991, now seen corresponding path program 1 times [2018-12-08 23:56:45,222 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:56:45,222 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:56:45,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:56:45,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:56:45,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:56:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:56:45,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:56:45,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:56:45,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 23:56:45,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:56:45,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:56:45,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:56:45,267 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 6 states. [2018-12-08 23:56:45,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:56:45,326 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-12-08 23:56:45,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 23:56:45,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-12-08 23:56:45,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:56:45,327 INFO L225 Difference]: With dead ends: 23 [2018-12-08 23:56:45,327 INFO L226 Difference]: Without dead ends: 14 [2018-12-08 23:56:45,328 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:56:45,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-08 23:56:45,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-12-08 23:56:45,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-08 23:56:45,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2018-12-08 23:56:45,330 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2018-12-08 23:56:45,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:56:45,330 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2018-12-08 23:56:45,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:56:45,330 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2018-12-08 23:56:45,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 23:56:45,331 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:56:45,331 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:56:45,331 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:56:45,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:56:45,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1851109901, now seen corresponding path program 1 times [2018-12-08 23:56:45,331 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:56:45,331 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:56:45,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:56:45,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:56:45,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:56:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:56:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:56:45,364 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 23:56:45,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:56:45 BoogieIcfgContainer [2018-12-08 23:56:45,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 23:56:45,380 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 23:56:45,380 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 23:56:45,381 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 23:56:45,381 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:56:44" (3/4) ... [2018-12-08 23:56:45,382 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 23:56:45,407 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4ad8f56a-75d4-4fcd-a672-dfd2f2efafa1/bin-2019/uautomizer/witness.graphml [2018-12-08 23:56:45,407 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 23:56:45,408 INFO L168 Benchmark]: Toolchain (without parser) took 758.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 61.3 MB). Free memory was 961.4 MB in the beginning and 977.0 MB in the end (delta: -15.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:56:45,408 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:56:45,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.77 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:56:45,409 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.56 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:56:45,409 INFO L168 Benchmark]: Boogie Preprocessor took 12.96 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 945.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 23:56:45,410 INFO L168 Benchmark]: RCFGBuilder took 157.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 61.3 MB). Free memory was 945.2 MB in the beginning and 1.0 GB in the end (delta: -91.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-08 23:56:45,410 INFO L168 Benchmark]: TraceAbstraction took 409.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 984.1 MB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 11.5 GB. [2018-12-08 23:56:45,410 INFO L168 Benchmark]: Witness Printer took 26.68 ms. Allocated memory is still 1.1 GB. Free memory was 984.1 MB in the beginning and 977.0 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-12-08 23:56:45,412 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.77 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 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 13.56 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.96 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 945.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 157.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 61.3 MB). Free memory was 945.2 MB in the beginning and 1.0 GB in the end (delta: -91.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 409.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 984.1 MB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 11.5 GB. * Witness Printer took 26.68 ms. Allocated memory is still 1.1 GB. Free memory was 984.1 MB in the beginning and 977.0 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] union dummy d1, d2; [L14] int n = __VERIFIER_nondet_int(); [L15] EXPR n ? &d1 : &d2 VAL [d1={7:0}, d2={6:0}, n=0, n ? &d1 : &d2={6:0}] [L15] union dummy *pd = n ? &d1 : &d2; [L16] d1.a = __VERIFIER_nondet_int() [L17] COND FALSE !(pd == &d1) [L20] pd->b = 0 VAL [d1={7:0}, d2={6:0}, n=0, pd={6:0}] [L22] pd == &d2 && d1.a != 0 [L22] EXPR d1.a [L22] pd == &d2 && d1.a != 0 VAL [d1={7:0}, d1.a=1, d2={6:0}, n=0, pd={6:0}, pd == &d2 && d1.a != 0=1] [L22] COND TRUE pd == &d2 && d1.a != 0 [L28] __VERIFIER_error() VAL [d1={7:0}, d2={6:0}, n=0, pd={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 22 SDslu, 40 SDs, 0 SdLazy, 51 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 732 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...