./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invariants/even_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5aed4e9d-450e-47a1-8965-421435069290/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5aed4e9d-450e-47a1-8965-421435069290/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5aed4e9d-450e-47a1-8965-421435069290/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5aed4e9d-450e-47a1-8965-421435069290/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invariants/even_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5aed4e9d-450e-47a1-8965-421435069290/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5aed4e9d-450e-47a1-8965-421435069290/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 0da6bb15567d40fa620ab6e47e9e189bd3f064b0 ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:48:26,898 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:48:26,899 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:48:26,905 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:48:26,905 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:48:26,906 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:48:26,907 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:48:26,908 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:48:26,909 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:48:26,910 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:48:26,910 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:48:26,910 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:48:26,911 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:48:26,912 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:48:26,913 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:48:26,913 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:48:26,914 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:48:26,915 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:48:26,916 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:48:26,918 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:48:26,918 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:48:26,919 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:48:26,921 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:48:26,921 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:48:26,921 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:48:26,922 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:48:26,923 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:48:26,923 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:48:26,924 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:48:26,925 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:48:26,925 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:48:26,926 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:48:26,926 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:48:26,926 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:48:26,927 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:48:26,927 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:48:26,927 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5aed4e9d-450e-47a1-8965-421435069290/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 14:48:26,939 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:48:26,939 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:48:26,940 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:48:26,940 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:48:26,940 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:48:26,941 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:48:26,941 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:48:26,941 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:48:26,941 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:48:26,941 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:48:26,941 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:48:26,941 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:48:26,942 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:48:26,942 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:48:26,942 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:48:26,942 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:48:26,942 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:48:26,942 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:48:26,942 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:48:26,942 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:48:26,943 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:48:26,943 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:48:26,943 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:48:26,943 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:48:26,943 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:48:26,943 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:48:26,943 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:48:26,943 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 14:48:26,944 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:48:26,944 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:48:26,944 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_5aed4e9d-450e-47a1-8965-421435069290/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 -> 0da6bb15567d40fa620ab6e47e9e189bd3f064b0 [2018-11-23 14:48:26,971 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:48:26,980 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:48:26,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:48:26,984 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:48:26,984 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:48:26,985 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5aed4e9d-450e-47a1-8965-421435069290/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invariants/even_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2018-11-23 14:48:27,031 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5aed4e9d-450e-47a1-8965-421435069290/bin-2019/uautomizer/data/3c8fb01c6/99c62e1d0deb4b63812ac9396e20e281/FLAG2ffaa55ab [2018-11-23 14:48:27,367 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:48:27,367 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5aed4e9d-450e-47a1-8965-421435069290/sv-benchmarks/c/loop-invariants/even_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2018-11-23 14:48:27,372 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5aed4e9d-450e-47a1-8965-421435069290/bin-2019/uautomizer/data/3c8fb01c6/99c62e1d0deb4b63812ac9396e20e281/FLAG2ffaa55ab [2018-11-23 14:48:27,790 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5aed4e9d-450e-47a1-8965-421435069290/bin-2019/uautomizer/data/3c8fb01c6/99c62e1d0deb4b63812ac9396e20e281 [2018-11-23 14:48:27,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:48:27,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:48:27,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:48:27,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:48:27,795 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:48:27,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:48:27" (1/1) ... [2018-11-23 14:48:27,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d4648b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:27, skipping insertion in model container [2018-11-23 14:48:27,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:48:27" (1/1) ... [2018-11-23 14:48:27,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:48:27,814 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:48:27,916 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:48:27,918 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:48:27,926 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:48:27,934 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:48:27,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:27 WrapperNode [2018-11-23 14:48:27,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:48:27,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:48:27,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:48:27,935 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:48:27,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:27" (1/1) ... [2018-11-23 14:48:27,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:27" (1/1) ... [2018-11-23 14:48:27,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:48:27,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:48:27,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:48:27,946 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:48:27,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:27" (1/1) ... [2018-11-23 14:48:27,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:27" (1/1) ... [2018-11-23 14:48:27,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:27" (1/1) ... [2018-11-23 14:48:27,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:27" (1/1) ... [2018-11-23 14:48:27,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:27" (1/1) ... [2018-11-23 14:48:27,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:27" (1/1) ... [2018-11-23 14:48:27,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:27" (1/1) ... [2018-11-23 14:48:27,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:48:27,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:48:27,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:48:27,957 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:48:27,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5aed4e9d-450e-47a1-8965-421435069290/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 [2018-11-23 14:48:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 14:48:28,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 14:48:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:48:28,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:48:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 14:48:28,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 14:48:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 14:48:28,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 14:48:28,112 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:48:28,112 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 14:48:28,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:28 BoogieIcfgContainer [2018-11-23 14:48:28,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:48:28,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:48:28,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:48:28,115 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:48:28,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:48:27" (1/3) ... [2018-11-23 14:48:28,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5033757d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:48:28, skipping insertion in model container [2018-11-23 14:48:28,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:27" (2/3) ... [2018-11-23 14:48:28,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5033757d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:48:28, skipping insertion in model container [2018-11-23 14:48:28,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:28" (3/3) ... [2018-11-23 14:48:28,118 INFO L112 eAbstractionObserver]: Analyzing ICFG even_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2018-11-23 14:48:28,124 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:48:28,128 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 14:48:28,138 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 14:48:28,155 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:48:28,155 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:48:28,155 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:48:28,155 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:48:28,156 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:48:28,156 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:48:28,156 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:48:28,156 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:48:28,156 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:48:28,170 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-23 14:48:28,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 14:48:28,175 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:48:28,175 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:48:28,177 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:48:28,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:48:28,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2018-11-23 14:48:28,181 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:48:28,182 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:48:28,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:48:28,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:48:28,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:48:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:48:28,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:48:28,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:48:28,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:48:28,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 14:48:28,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 14:48:28,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 14:48:28,258 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2018-11-23 14:48:28,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:48:28,272 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2018-11-23 14:48:28,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 14:48:28,273 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-23 14:48:28,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:48:28,278 INFO L225 Difference]: With dead ends: 31 [2018-11-23 14:48:28,278 INFO L226 Difference]: Without dead ends: 12 [2018-11-23 14:48:28,280 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 14:48:28,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-23 14:48:28,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-23 14:48:28,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 14:48:28,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-23 14:48:28,302 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-11-23 14:48:28,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:48:28,302 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-23 14:48:28,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 14:48:28,302 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-23 14:48:28,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 14:48:28,303 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:48:28,303 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:48:28,303 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:48:28,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:48:28,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1890620952, now seen corresponding path program 1 times [2018-11-23 14:48:28,303 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:48:28,303 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:48:28,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:48:28,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:48:28,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:48:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:48:28,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:48:28,478 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:48:28,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 14:48:28,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 14:48:28,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 14:48:28,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 14:48:28,480 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2018-11-23 14:48:28,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:48:28,516 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-11-23 14:48:28,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 14:48:28,516 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-23 14:48:28,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:48:28,516 INFO L225 Difference]: With dead ends: 12 [2018-11-23 14:48:28,516 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 14:48:28,517 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:48:28,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 14:48:28,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 14:48:28,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 14:48:28,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 14:48:28,518 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-23 14:48:28,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:48:28,518 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:48:28,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 14:48:28,518 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:48:28,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:48:28,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 14:48:28,545 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 14:48:28,546 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:48:28,546 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:48:28,546 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 14:48:28,546 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 14:48:28,546 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 14:48:28,546 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 9 16) the Hoare annotation is: true [2018-11-23 14:48:28,546 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 9 16) no Hoare annotation was computed. [2018-11-23 14:48:28,546 INFO L448 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-23 14:48:28,546 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 9 16) no Hoare annotation was computed. [2018-11-23 14:48:28,546 INFO L448 ceAbstractionStarter]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2018-11-23 14:48:28,546 INFO L444 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: (and (<= main_~x~0 (let ((.cse0 (div main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ main_~x~0 (* (- 2) .cse0)) 4294967296))))) (<= 0 main_~x~0)) [2018-11-23 14:48:28,547 INFO L444 ceAbstractionStarter]: At program point L11-4(lines 11 13) the Hoare annotation is: (and (<= main_~x~0 (let ((.cse0 (div main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ main_~x~0 (* (- 2) .cse0)) 4294967296))))) (<= 0 main_~x~0)) [2018-11-23 14:48:28,547 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-23 14:48:28,547 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-23 14:48:28,547 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-23 14:48:28,547 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-23 14:48:28,547 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-23 14:48:28,547 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-23 14:48:28,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:48:28 BoogieIcfgContainer [2018-11-23 14:48:28,555 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 14:48:28,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:48:28,556 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:48:28,556 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:48:28,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:28" (3/4) ... [2018-11-23 14:48:28,559 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:48:28,563 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 14:48:28,564 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 14:48:28,564 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 14:48:28,567 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 14:48:28,567 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 14:48:28,567 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 14:48:28,592 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5aed4e9d-450e-47a1-8965-421435069290/bin-2019/uautomizer/witness.graphml [2018-11-23 14:48:28,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:48:28,593 INFO L168 Benchmark]: Toolchain (without parser) took 800.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -115.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-23 14:48:28,594 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:48:28,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.55 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:48:28,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.00 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:48:28,595 INFO L168 Benchmark]: Boogie Preprocessor took 10.85 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:48:28,595 INFO L168 Benchmark]: RCFGBuilder took 155.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:48:28,596 INFO L168 Benchmark]: TraceAbstraction took 442.42 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: 41.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. [2018-11-23 14:48:28,596 INFO L168 Benchmark]: Witness Printer took 37.13 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 14:48:28,598 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 141.55 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 11.00 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.85 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 155.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 442.42 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: 41.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. * Witness Printer took 37.13 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: 3.3 MB). Peak memory consumption was 3.3 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 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: x <= 2 * (x / 2) + 4294967296 * ((x + -2 * (x / 2)) / 4294967296) && 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 1 SDslu, 20 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 51 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 881 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 correct! Received shutdown request...