./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test_union_cast-1_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_89528049-9059-45a7-81be-233d64fc4fe3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_89528049-9059-45a7-81be-233d64fc4fe3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_89528049-9059-45a7-81be-233d64fc4fe3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_89528049-9059-45a7-81be-233d64fc4fe3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_union_cast-1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_89528049-9059-45a7-81be-233d64fc4fe3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_89528049-9059-45a7-81be-233d64fc4fe3/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 20ba88b165c7eae2bdbfa30c2c3cde75aa5705d7 ..................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 05:09:19,891 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:09:19,893 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:09:19,900 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:09:19,900 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:09:19,901 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:09:19,902 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:09:19,903 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:09:19,904 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:09:19,905 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:09:19,906 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:09:19,906 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:09:19,907 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:09:19,909 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:09:19,909 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:09:19,910 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:09:19,910 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:09:19,911 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:09:19,913 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:09:19,914 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:09:19,915 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:09:19,916 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:09:19,918 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:09:19,918 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:09:19,918 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:09:19,919 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:09:19,920 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:09:19,920 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:09:19,921 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:09:19,921 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:09:19,921 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:09:19,922 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:09:19,922 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:09:19,922 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:09:19,922 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:09:19,923 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:09:19,923 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_89528049-9059-45a7-81be-233d64fc4fe3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 05:09:19,930 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:09:19,931 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:09:19,931 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:09:19,931 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 05:09:19,931 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 05:09:19,932 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 05:09:19,932 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 05:09:19,932 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:09:19,932 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:09:19,932 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:09:19,933 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:09:19,933 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:09:19,933 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:09:19,933 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:09:19,933 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:09:19,933 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:09:19,934 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:09:19,934 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:09:19,934 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:09:19,934 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:09:19,934 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:09:19,934 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:09:19,935 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:09:19,935 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:09:19,935 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:09:19,935 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:09:19,935 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 05:09:19,935 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:09:19,936 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:09:19,936 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_89528049-9059-45a7-81be-233d64fc4fe3/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 -> 20ba88b165c7eae2bdbfa30c2c3cde75aa5705d7 [2018-11-10 05:09:19,962 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:09:19,972 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:09:19,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:09:19,977 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:09:19,977 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:09:19,977 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_89528049-9059-45a7-81be-233d64fc4fe3/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/test_union_cast-1_true-unreach-call_true-termination.i [2018-11-10 05:09:20,030 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89528049-9059-45a7-81be-233d64fc4fe3/bin-2019/uautomizer/data/bd3613e6d/daa8623a543d44219a5e12c65dfbe231/FLAG9328a983e [2018-11-10 05:09:20,369 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:09:20,369 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_89528049-9059-45a7-81be-233d64fc4fe3/sv-benchmarks/c/ldv-regression/test_union_cast-1_true-unreach-call_true-termination.i [2018-11-10 05:09:20,374 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89528049-9059-45a7-81be-233d64fc4fe3/bin-2019/uautomizer/data/bd3613e6d/daa8623a543d44219a5e12c65dfbe231/FLAG9328a983e [2018-11-10 05:09:20,387 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_89528049-9059-45a7-81be-233d64fc4fe3/bin-2019/uautomizer/data/bd3613e6d/daa8623a543d44219a5e12c65dfbe231 [2018-11-10 05:09:20,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:09:20,392 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 05:09:20,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:09:20,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:09:20,397 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:09:20,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:09:20" (1/1) ... [2018-11-10 05:09:20,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:20, skipping insertion in model container [2018-11-10 05:09:20,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:09:20" (1/1) ... [2018-11-10 05:09:20,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:09:20,424 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:09:20,540 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:09:20,542 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:09:20,554 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:09:20,569 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:09:20,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:20 WrapperNode [2018-11-10 05:09:20,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:09:20,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:09:20,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:09:20,570 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:09:20,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:20" (1/1) ... [2018-11-10 05:09:20,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:20" (1/1) ... [2018-11-10 05:09:20,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:20" (1/1) ... [2018-11-10 05:09:20,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:20" (1/1) ... [2018-11-10 05:09:20,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:20" (1/1) ... [2018-11-10 05:09:20,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:20" (1/1) ... [2018-11-10 05:09:20,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:20" (1/1) ... [2018-11-10 05:09:20,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:09:20,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:09:20,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:09:20,597 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:09:20,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89528049-9059-45a7-81be-233d64fc4fe3/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 [2018-11-10 05:09:20,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:09:20,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:09:20,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 05:09:20,689 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:09:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 05:09:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 05:09:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2018-11-10 05:09:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2018-11-10 05:09:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2018-11-10 05:09:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:09:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 05:09:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-10 05:09:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 05:09:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 05:09:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 05:09:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:09:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:09:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 05:09:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-10 05:09:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-10 05:09:20,876 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:09:20,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:09:20 BoogieIcfgContainer [2018-11-10 05:09:20,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:09:20,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:09:20,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:09:20,881 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:09:20,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:09:20" (1/3) ... [2018-11-10 05:09:20,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566e232e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:09:20, skipping insertion in model container [2018-11-10 05:09:20,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:20" (2/3) ... [2018-11-10 05:09:20,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566e232e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:09:20, skipping insertion in model container [2018-11-10 05:09:20,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:09:20" (3/3) ... [2018-11-10 05:09:20,885 INFO L112 eAbstractionObserver]: Analyzing ICFG test_union_cast-1_true-unreach-call_true-termination.i [2018-11-10 05:09:20,897 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:09:20,905 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:09:20,923 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:09:20,954 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 05:09:20,955 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:09:20,955 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:09:20,955 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:09:20,955 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:09:20,956 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:09:20,956 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:09:20,956 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:09:20,956 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:09:20,973 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-10 05:09:20,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 05:09:20,979 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:09:20,980 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:09:20,982 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:09:20,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:09:20,987 INFO L82 PathProgramCache]: Analyzing trace with hash -601096555, now seen corresponding path program 1 times [2018-11-10 05:09:20,989 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:09:20,990 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:09:21,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:09:21,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:09:21,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:09:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:09:21,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:09:21,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:09:21,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 05:09:21,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 05:09:21,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 05:09:21,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 05:09:21,243 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 6 states. [2018-11-10 05:09:21,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:09:21,315 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2018-11-10 05:09:21,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 05:09:21,318 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-10 05:09:21,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:09:21,323 INFO L225 Difference]: With dead ends: 32 [2018-11-10 05:09:21,324 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 05:09:21,326 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-10 05:09:21,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 05:09:21,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 05:09:21,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 05:09:21,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 05:09:21,345 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-10 05:09:21,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:09:21,345 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:09:21,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 05:09:21,345 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 05:09:21,346 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 05:09:21,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 05:09:21,386 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 05:09:21,386 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 05:09:21,386 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:09:21,387 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:09:21,387 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 05:09:21,387 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 05:09:21,387 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 05:09:21,387 INFO L425 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2018-11-10 05:09:21,387 INFO L425 ceAbstractionStarter]: For program point L34-2(line 34) no Hoare annotation was computed. [2018-11-10 05:09:21,387 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 32 45) the Hoare annotation is: true [2018-11-10 05:09:21,387 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 32 45) no Hoare annotation was computed. [2018-11-10 05:09:21,388 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 32 45) no Hoare annotation was computed. [2018-11-10 05:09:21,388 INFO L421 ceAbstractionStarter]: At program point L37(line 37) the Hoare annotation is: (and (= 10 (select (select |#memory_int| |main_~#var~0.base|) |main_~#var~0.offset|)) (= |main_#t~mem0| 10)) [2018-11-10 05:09:21,388 INFO L425 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-11-10 05:09:21,388 INFO L425 ceAbstractionStarter]: For program point L37-1(line 37) no Hoare annotation was computed. [2018-11-10 05:09:21,388 INFO L425 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-11-10 05:09:21,388 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-10 05:09:21,388 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-10 05:09:21,389 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-10 05:09:21,389 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-10 05:09:21,389 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-10 05:09:21,389 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-10 05:09:21,389 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-10 05:09:21,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:09:21 BoogieIcfgContainer [2018-11-10 05:09:21,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:09:21,393 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:09:21,393 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:09:21,393 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:09:21,394 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:09:20" (3/4) ... [2018-11-10 05:09:21,396 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 05:09:21,402 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 05:09:21,402 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 05:09:21,402 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 05:09:21,406 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-10 05:09:21,406 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-10 05:09:21,406 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 05:09:21,436 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_89528049-9059-45a7-81be-233d64fc4fe3/bin-2019/uautomizer/witness.graphml [2018-11-10 05:09:21,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:09:21,437 INFO L168 Benchmark]: Toolchain (without parser) took 1045.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -118.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 05:09:21,438 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:09:21,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.78 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:09:21,439 INFO L168 Benchmark]: Boogie Preprocessor took 26.90 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:09:21,440 INFO L168 Benchmark]: RCFGBuilder took 279.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-10 05:09:21,440 INFO L168 Benchmark]: TraceAbstraction took 514.85 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: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:09:21,441 INFO L168 Benchmark]: Witness Printer took 43.93 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. [2018-11-10 05:09:21,444 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.78 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.90 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 279.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 514.85 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: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 11.5 GB. * Witness Printer took 43.93 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: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 8 SDslu, 50 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 16 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...