./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/heavy-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops/heavy-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 63303d7ef35f153a8bd897bdcb496a54fed422c9 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 18:50:36,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:50:36,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:50:36,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:50:36,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:50:36,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:50:36,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:50:36,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:50:36,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:50:36,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:50:36,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:50:36,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:50:36,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:50:36,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:50:36,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:50:36,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:50:36,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:50:36,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:50:36,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:50:36,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:50:36,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:50:36,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:50:36,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:50:36,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:50:36,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:50:36,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:50:36,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:50:36,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:50:36,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:50:36,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:50:36,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:50:36,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:50:36,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:50:36,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:50:36,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:50:36,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:50:36,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:50:36,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:50:36,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:50:36,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:50:36,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:50:36,982 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 18:50:37,008 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:50:37,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:50:37,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:50:37,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:50:37,011 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:50:37,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:50:37,012 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:50:37,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 18:50:37,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:50:37,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:50:37,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:50:37,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:50:37,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:50:37,015 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:50:37,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:50:37,015 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:50:37,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:50:37,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:50:37,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:50:37,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:50:37,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:50:37,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:50:37,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:50:37,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:50:37,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:50:37,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 18:50:37,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 18:50:37,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:50:37,019 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 63303d7ef35f153a8bd897bdcb496a54fed422c9 [2019-11-19 18:50:37,348 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:50:37,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:50:37,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:50:37,367 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:50:37,368 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:50:37,369 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/heavy-2.c [2019-11-19 18:50:37,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376eb3eb6/8bf4ccbff1844383a4802ba645af2bba/FLAG8a9d49144 [2019-11-19 18:50:37,915 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:50:37,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/heavy-2.c [2019-11-19 18:50:37,921 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376eb3eb6/8bf4ccbff1844383a4802ba645af2bba/FLAG8a9d49144 [2019-11-19 18:50:38,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376eb3eb6/8bf4ccbff1844383a4802ba645af2bba [2019-11-19 18:50:38,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:50:38,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:50:38,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:50:38,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:50:38,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:50:38,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:50:38" (1/1) ... [2019-11-19 18:50:38,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@350d758b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:50:38, skipping insertion in model container [2019-11-19 18:50:38,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:50:38" (1/1) ... [2019-11-19 18:50:38,269 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:50:38,287 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:50:38,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:50:38,496 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:50:38,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:50:38,634 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:50:38,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:50:38 WrapperNode [2019-11-19 18:50:38,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:50:38,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:50:38,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:50:38,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:50:38,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:50:38" (1/1) ... [2019-11-19 18:50:38,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:50:38" (1/1) ... [2019-11-19 18:50:38,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:50:38,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:50:38,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:50:38,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:50:38,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:50:38" (1/1) ... [2019-11-19 18:50:38,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:50:38" (1/1) ... [2019-11-19 18:50:38,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:50:38" (1/1) ... [2019-11-19 18:50:38,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:50:38" (1/1) ... [2019-11-19 18:50:38,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:50:38" (1/1) ... [2019-11-19 18:50:38,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:50:38" (1/1) ... [2019-11-19 18:50:38,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:50:38" (1/1) ... [2019-11-19 18:50:38,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:50:38,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:50:38,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:50:38,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:50:38,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:50:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 18:50:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 18:50:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:50:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:50:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 18:50:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-19 18:50:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 18:50:38,970 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:50:38,970 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-19 18:50:38,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:50:38 BoogieIcfgContainer [2019-11-19 18:50:38,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:50:38,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:50:38,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:50:38,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:50:38,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:50:38" (1/3) ... [2019-11-19 18:50:38,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38312314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:50:38, skipping insertion in model container [2019-11-19 18:50:38,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:50:38" (2/3) ... [2019-11-19 18:50:38,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38312314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:50:38, skipping insertion in model container [2019-11-19 18:50:38,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:50:38" (3/3) ... [2019-11-19 18:50:38,982 INFO L109 eAbstractionObserver]: Analyzing ICFG heavy-2.c [2019-11-19 18:50:38,992 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:50:39,001 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 18:50:39,011 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 18:50:39,031 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:50:39,031 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:50:39,031 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:50:39,031 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:50:39,032 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:50:39,032 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:50:39,032 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:50:39,032 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:50:39,044 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-19 18:50:39,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 18:50:39,050 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:50:39,051 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 18:50:39,051 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:50:39,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:50:39,057 INFO L82 PathProgramCache]: Analyzing trace with hash 28726599, now seen corresponding path program 1 times [2019-11-19 18:50:39,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:50:39,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168689881] [2019-11-19 18:50:39,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:50:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:50:39,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:50:39,178 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168689881] [2019-11-19 18:50:39,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:50:39,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 18:50:39,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271529136] [2019-11-19 18:50:39,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 18:50:39,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:50:39,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 18:50:39,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 18:50:39,202 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2019-11-19 18:50:39,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:50:39,221 INFO L93 Difference]: Finished difference Result 26 states and 38 transitions. [2019-11-19 18:50:39,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 18:50:39,223 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-11-19 18:50:39,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:50:39,233 INFO L225 Difference]: With dead ends: 26 [2019-11-19 18:50:39,233 INFO L226 Difference]: Without dead ends: 11 [2019-11-19 18:50:39,237 INFO L630 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 [2019-11-19 18:50:39,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-19 18:50:39,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-19 18:50:39,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-19 18:50:39,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-11-19 18:50:39,274 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 5 [2019-11-19 18:50:39,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:50:39,274 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-19 18:50:39,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 18:50:39,276 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-11-19 18:50:39,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 18:50:39,277 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:50:39,277 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 18:50:39,277 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:50:39,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:50:39,278 INFO L82 PathProgramCache]: Analyzing trace with hash 28697769, now seen corresponding path program 1 times [2019-11-19 18:50:39,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:50:39,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010348078] [2019-11-19 18:50:39,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:50:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:50:39,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:50:39,355 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010348078] [2019-11-19 18:50:39,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:50:39,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 18:50:39,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606679484] [2019-11-19 18:50:39,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 18:50:39,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:50:39,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 18:50:39,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 18:50:39,358 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2019-11-19 18:50:39,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:50:39,414 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2019-11-19 18:50:39,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 18:50:39,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-19 18:50:39,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:50:39,417 INFO L225 Difference]: With dead ends: 20 [2019-11-19 18:50:39,417 INFO L226 Difference]: Without dead ends: 17 [2019-11-19 18:50:39,419 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 18:50:39,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-19 18:50:39,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2019-11-19 18:50:39,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-19 18:50:39,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-19 18:50:39,425 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2019-11-19 18:50:39,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:50:39,426 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-19 18:50:39,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 18:50:39,426 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-19 18:50:39,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-19 18:50:39,427 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:50:39,427 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:50:39,430 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:50:39,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:50:39,430 INFO L82 PathProgramCache]: Analyzing trace with hash 269702257, now seen corresponding path program 1 times [2019-11-19 18:50:39,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:50:39,431 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802342850] [2019-11-19 18:50:39,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:50:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:50:39,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:50:39,543 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802342850] [2019-11-19 18:50:39,543 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077208958] [2019-11-19 18:50:39,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:50:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:50:39,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 18:50:39,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 18:50:39,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:50:39,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-19 18:50:39,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2019-11-19 18:50:39,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908577158] [2019-11-19 18:50:39,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 18:50:39,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:50:39,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 18:50:39,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-19 18:50:39,655 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 4 states. [2019-11-19 18:50:39,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:50:39,719 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2019-11-19 18:50:39,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 18:50:39,719 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-19 18:50:39,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:50:39,720 INFO L225 Difference]: With dead ends: 34 [2019-11-19 18:50:39,720 INFO L226 Difference]: Without dead ends: 25 [2019-11-19 18:50:39,721 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-19 18:50:39,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-19 18:50:39,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 13. [2019-11-19 18:50:39,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-19 18:50:39,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-11-19 18:50:39,726 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 8 [2019-11-19 18:50:39,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:50:39,727 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-19 18:50:39,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 18:50:39,727 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-11-19 18:50:39,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 18:50:39,727 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:50:39,728 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:50:39,930 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:50:39,930 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:50:39,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:50:39,931 INFO L82 PathProgramCache]: Analyzing trace with hash 904437765, now seen corresponding path program 1 times [2019-11-19 18:50:39,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:50:39,932 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801334599] [2019-11-19 18:50:39,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:50:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:50:40,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 18:50:40,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801334599] [2019-11-19 18:50:40,026 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210548604] [2019-11-19 18:50:40,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:50:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:50:40,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 18:50:40,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 18:50:40,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:50:40,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-19 18:50:40,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2019-11-19 18:50:40,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711993796] [2019-11-19 18:50:40,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 18:50:40,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:50:40,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 18:50:40,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-19 18:50:40,112 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 4 states. [2019-11-19 18:50:40,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:50:40,177 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2019-11-19 18:50:40,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 18:50:40,179 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-19 18:50:40,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:50:40,180 INFO L225 Difference]: With dead ends: 33 [2019-11-19 18:50:40,180 INFO L226 Difference]: Without dead ends: 23 [2019-11-19 18:50:40,182 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-19 18:50:40,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-19 18:50:40,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 14. [2019-11-19 18:50:40,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-19 18:50:40,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-19 18:50:40,192 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2019-11-19 18:50:40,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:50:40,193 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-19 18:50:40,194 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 18:50:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-19 18:50:40,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-19 18:50:40,196 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:50:40,196 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:50:40,401 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:50:40,402 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:50:40,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:50:40,403 INFO L82 PathProgramCache]: Analyzing trace with hash -2012164797, now seen corresponding path program 1 times [2019-11-19 18:50:40,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:50:40,404 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617392914] [2019-11-19 18:50:40,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:50:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:50:40,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 18:50:40,538 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617392914] [2019-11-19 18:50:40,541 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017580239] [2019-11-19 18:50:40,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:50:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:50:40,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 18:50:40,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 18:50:40,613 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:50:40,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 18:50:40,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2019-11-19 18:50:40,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158196129] [2019-11-19 18:50:40,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 18:50:40,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:50:40,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 18:50:40,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-19 18:50:40,616 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 6 states. [2019-11-19 18:50:40,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:50:40,749 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2019-11-19 18:50:40,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-19 18:50:40,751 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-11-19 18:50:40,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:50:40,752 INFO L225 Difference]: With dead ends: 49 [2019-11-19 18:50:40,752 INFO L226 Difference]: Without dead ends: 38 [2019-11-19 18:50:40,753 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-19 18:50:40,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-19 18:50:40,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 26. [2019-11-19 18:50:40,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-19 18:50:40,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-11-19 18:50:40,760 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 13 [2019-11-19 18:50:40,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:50:40,760 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-11-19 18:50:40,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 18:50:40,761 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-11-19 18:50:40,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-19 18:50:40,761 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:50:40,762 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-19 18:50:40,965 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:50:40,965 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:50:40,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:50:40,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1000909991, now seen corresponding path program 2 times [2019-11-19 18:50:40,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:50:40,967 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987832956] [2019-11-19 18:50:40,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:50:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:50:41,158 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-19 18:50:41,159 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987832956] [2019-11-19 18:50:41,159 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757070850] [2019-11-19 18:50:41,160 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:50:41,204 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-19 18:50:41,204 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-19 18:50:41,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-19 18:50:41,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 18:50:41,222 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-19 18:50:41,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-19 18:50:41,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-11-19 18:50:41,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398724606] [2019-11-19 18:50:41,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 18:50:41,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:50:41,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 18:50:41,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-19 18:50:41,225 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 3 states. [2019-11-19 18:50:41,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:50:41,230 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2019-11-19 18:50:41,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 18:50:41,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-11-19 18:50:41,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:50:41,231 INFO L225 Difference]: With dead ends: 26 [2019-11-19 18:50:41,232 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 18:50:41,232 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-19 18:50:41,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 18:50:41,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 18:50:41,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 18:50:41,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 18:50:41,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2019-11-19 18:50:41,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:50:41,234 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 18:50:41,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 18:50:41,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 18:50:41,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 18:50:41,438 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:50:41,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 18:50:41,485 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 18:50:41,485 INFO L444 ceAbstractionStarter]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2019-11-19 18:50:41,485 INFO L440 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: (= ULTIMATE.start_main_~a~0 1) [2019-11-19 18:50:41,485 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 18:50:41,485 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 18:50:41,486 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 18:50:41,486 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2019-11-19 18:50:41,486 INFO L447 ceAbstractionStarter]: At program point L20(lines 5 21) the Hoare annotation is: true [2019-11-19 18:50:41,486 INFO L440 ceAbstractionStarter]: At program point L16(lines 6 21) the Hoare annotation is: false [2019-11-19 18:50:41,486 INFO L444 ceAbstractionStarter]: For program point L12-2(lines 12 13) no Hoare annotation was computed. [2019-11-19 18:50:41,486 INFO L440 ceAbstractionStarter]: At program point L12-3(lines 12 13) the Hoare annotation is: (= ULTIMATE.start_main_~a~0 1) [2019-11-19 18:50:41,487 INFO L444 ceAbstractionStarter]: For program point L10-2(lines 10 13) no Hoare annotation was computed. [2019-11-19 18:50:41,487 INFO L440 ceAbstractionStarter]: At program point L10-3(lines 10 13) the Hoare annotation is: (= ULTIMATE.start_main_~a~0 1) [2019-11-19 18:50:41,487 INFO L444 ceAbstractionStarter]: For program point L10-4(lines 6 21) no Hoare annotation was computed. [2019-11-19 18:50:41,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:50:41 BoogieIcfgContainer [2019-11-19 18:50:41,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 18:50:41,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 18:50:41,503 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 18:50:41,504 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 18:50:41,504 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:50:38" (3/4) ... [2019-11-19 18:50:41,508 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 18:50:41,518 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-19 18:50:41,518 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 18:50:41,519 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 18:50:41,570 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 18:50:41,570 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 18:50:41,572 INFO L168 Benchmark]: Toolchain (without parser) took 3319.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 960.4 MB in the beginning and 903.3 MB in the end (delta: 57.1 MB). Peak memory consumption was 134.2 MB. Max. memory is 11.5 GB. [2019-11-19 18:50:41,573 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:50:41,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -112.5 MB). Peak memory consumption was 52.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:50:41,574 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:50:41,575 INFO L168 Benchmark]: Boogie Preprocessor took 25.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-19 18:50:41,575 INFO L168 Benchmark]: RCFGBuilder took 274.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:50:41,576 INFO L168 Benchmark]: TraceAbstraction took 2530.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 910.3 MB in the end (delta: 129.0 MB). Peak memory consumption was 129.0 MB. Max. memory is 11.5 GB. [2019-11-19 18:50:41,576 INFO L168 Benchmark]: Witness Printer took 66.67 ms. Allocated memory is still 1.1 GB. Free memory was 910.3 MB in the beginning and 903.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-19 18:50:41,580 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 382.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -112.5 MB). Peak memory consumption was 52.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 274.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2530.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 910.3 MB in the end (delta: 129.0 MB). Peak memory consumption was 129.0 MB. Max. memory is 11.5 GB. * Witness Printer took 66.67 ms. Allocated memory is still 1.1 GB. Free memory was 910.3 MB in the beginning and 903.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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: 6]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: a == 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: a == 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: a == 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 57 SDslu, 60 SDs, 0 SdLazy, 73 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=5, 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, 6 MinimizatonAttempts, 38 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 19 NumberOfFragments, 11 HoareAnnotationTreeSize, 5 FomulaSimplifications, 236 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 124 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 5778 SizeOfPredicates, 6 NumberOfNonLiveVariables, 170 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 50/76 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 correct! Received shutdown request...