./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/terminator_03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/terminator_03-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/bin/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 99b8f1cc5bec62c63bdabd96b82a49433aa34505 ................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:55:56,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:56,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:56,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:56,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:56,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:56,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:56,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:56,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:56,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:56,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:56,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:56,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:56,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:56,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:56,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:56,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:56,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:56,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:56,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:56,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:56,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:56,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:56,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:56,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:56,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:56,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:56,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:56,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:56,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:56,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:56,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:56,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:56,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:56,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:56,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:56,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:56,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:56,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:56,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:56,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:56,933 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:55:56,949 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:56,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:56,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:56,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:56,955 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:56,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:56,955 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:56,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:56,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:56,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:56,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:55:56,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:56,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:55:56,956 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:56,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:56,957 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:56,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:55:56,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:56,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:56,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:56,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:56,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:56,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:56,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:56,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:55:56,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:56,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:55:56,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:55:56,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/bin/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 -> 99b8f1cc5bec62c63bdabd96b82a49433aa34505 [2019-10-22 08:55:56,995 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:57,007 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:57,011 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:57,012 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:57,013 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:57,013 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/bin/uautomizer/../../sv-benchmarks/c/loops/terminator_03-1.c [2019-10-22 08:55:57,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/bin/uautomizer/data/7f39b30d1/39295e616eb64708b431d2289c70926f/FLAGe5f431269 [2019-10-22 08:55:57,448 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:57,450 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/sv-benchmarks/c/loops/terminator_03-1.c [2019-10-22 08:55:57,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/bin/uautomizer/data/7f39b30d1/39295e616eb64708b431d2289c70926f/FLAGe5f431269 [2019-10-22 08:55:57,471 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/bin/uautomizer/data/7f39b30d1/39295e616eb64708b431d2289c70926f [2019-10-22 08:55:57,474 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:57,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:57,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:57,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:57,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:57,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd94518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57, skipping insertion in model container [2019-10-22 08:55:57,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,492 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:57,507 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:57,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:57,670 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:57,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:57,752 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:57,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57 WrapperNode [2019-10-22 08:55:57,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:57,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:57,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:57,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:57,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:57,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:57,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:57,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:57,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:57,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:57,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:57,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:57,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/bin/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 [2019-10-22 08:55:57,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:57,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:57,965 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:57,966 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:55:57,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:57 BoogieIcfgContainer [2019-10-22 08:55:57,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:57,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:57,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:57,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:57,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:57" (1/3) ... [2019-10-22 08:55:57,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a2acec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:57, skipping insertion in model container [2019-10-22 08:55:57,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (2/3) ... [2019-10-22 08:55:57,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a2acec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:57, skipping insertion in model container [2019-10-22 08:55:57,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:57" (3/3) ... [2019-10-22 08:55:57,975 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_03-1.c [2019-10-22 08:55:57,981 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:57,987 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:55:57,993 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:55:58,010 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:58,010 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:58,010 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:58,010 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:58,010 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:58,011 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:58,011 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:58,011 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:58,020 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-10-22 08:55:58,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 08:55:58,027 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:58,027 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 08:55:58,029 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:58,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:58,035 INFO L82 PathProgramCache]: Analyzing trace with hash 30108868, now seen corresponding path program 1 times [2019-10-22 08:55:58,043 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:58,043 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685058963] [2019-10-22 08:55:58,044 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:58,044 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:58,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:58,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:58,158 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685058963] [2019-10-22 08:55:58,159 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:58,159 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:55:58,159 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713154064] [2019-10-22 08:55:58,163 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:55:58,163 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:58,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:55:58,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:55:58,177 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 4 states. [2019-10-22 08:55:58,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:58,220 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2019-10-22 08:55:58,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:55:58,222 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-10-22 08:55:58,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:58,230 INFO L225 Difference]: With dead ends: 25 [2019-10-22 08:55:58,230 INFO L226 Difference]: Without dead ends: 7 [2019-10-22 08:55:58,233 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:58,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-10-22 08:55:58,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-10-22 08:55:58,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-10-22 08:55:58,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-10-22 08:55:58,260 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-10-22 08:55:58,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:58,260 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-10-22 08:55:58,260 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:55:58,260 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-10-22 08:55:58,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 08:55:58,261 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:58,261 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:58,261 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:58,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:58,261 INFO L82 PathProgramCache]: Analyzing trace with hash 920174575, now seen corresponding path program 1 times [2019-10-22 08:55:58,261 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:58,262 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125385115] [2019-10-22 08:55:58,262 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:58,262 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:58,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:58,311 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:58,311 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:55:58,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:58 BoogieIcfgContainer [2019-10-22 08:55:58,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:58,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:58,324 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:58,325 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:58,325 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:57" (3/4) ... [2019-10-22 08:55:58,327 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:55:58,352 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4914d5d5-8fa0-408a-b71e-ab0a76ffb70e/bin/uautomizer/witness.graphml [2019-10-22 08:55:58,352 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:58,354 INFO L168 Benchmark]: Toolchain (without parser) took 878.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 947.2 MB in the beginning and 1.1 GB in the end (delta: -141.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:58,354 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:58,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 947.2 MB in the beginning and 1.1 GB in the end (delta: -192.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:58,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:58,355 INFO L168 Benchmark]: Boogie Preprocessor took 12.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:58,356 INFO L168 Benchmark]: RCFGBuilder took 172.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:58,356 INFO L168 Benchmark]: TraceAbstraction took 356.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:58,357 INFO L168 Benchmark]: Witness Printer took 27.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:58,360 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 277.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 947.2 MB in the beginning and 1.1 GB in the end (delta: -192.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 172.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 356.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. * Witness Printer took 27.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 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.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] int x=__VERIFIER_nondet_int(); [L14] int y=__VERIFIER_nondet_int(); [L16] COND TRUE y>0 [L18] COND FALSE !(x<100) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 12 SDslu, 13 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...