./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/geo1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c 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/nla-digbench/geo1.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 8a231e711690f7f7b25cf13cdcb2e70bc8a8a2ce .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 17:11:25,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:11:25,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:11:25,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:11:25,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:11:25,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:11:25,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:11:25,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:11:25,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:11:25,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:11:25,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:11:25,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:11:25,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:11:25,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:11:25,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:11:25,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:11:25,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:11:25,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:11:25,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:11:25,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:11:25,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:11:25,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:11:25,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:11:25,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:11:25,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:11:25,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:11:25,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:11:25,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:11:25,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:11:25,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:11:25,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:11:25,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:11:25,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:11:25,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:11:25,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:11:25,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:11:25,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:11:25,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:11:25,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:11:25,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:11:25,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:11:25,907 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:11:25,922 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:11:25,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:11:25,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:11:25,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:11:25,924 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:11:25,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:11:25,925 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:11:25,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:11:25,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:11:25,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:11:25,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:11:25,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:11:25,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:11:25,927 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:11:25,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:11:25,927 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:11:25,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:11:25,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:11:25,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:11:25,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:11:25,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:11:25,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:11:25,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:11:25,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:11:25,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:11:25,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:11:25,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:11:25,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:11:25,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:11:25,931 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 -> 8a231e711690f7f7b25cf13cdcb2e70bc8a8a2ce [2019-11-28 17:11:26,252 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:11:26,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:11:26,279 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:11:26,281 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:11:26,283 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:11:26,284 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/geo1.c [2019-11-28 17:11:26,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c690c80fc/e94434d2386c46368895f13eea0458ce/FLAG17912d28e [2019-11-28 17:11:26,849 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:11:26,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/geo1.c [2019-11-28 17:11:26,855 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c690c80fc/e94434d2386c46368895f13eea0458ce/FLAG17912d28e [2019-11-28 17:11:27,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c690c80fc/e94434d2386c46368895f13eea0458ce [2019-11-28 17:11:27,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:11:27,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:11:27,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:11:27,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:11:27,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:11:27,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:11:27" (1/1) ... [2019-11-28 17:11:27,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@712b286a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:27, skipping insertion in model container [2019-11-28 17:11:27,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:11:27" (1/1) ... [2019-11-28 17:11:27,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:11:27,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:11:27,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:11:27,543 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:11:27,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:11:27,583 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:11:27,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:27 WrapperNode [2019-11-28 17:11:27,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:11:27,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:11:27,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:11:27,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:11:27,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:27" (1/1) ... [2019-11-28 17:11:27,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:27" (1/1) ... [2019-11-28 17:11:27,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:11:27,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:11:27,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:11:27,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:11:27,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:27" (1/1) ... [2019-11-28 17:11:27,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:27" (1/1) ... [2019-11-28 17:11:27,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:27" (1/1) ... [2019-11-28 17:11:27,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:27" (1/1) ... [2019-11-28 17:11:27,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:27" (1/1) ... [2019-11-28 17:11:27,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:27" (1/1) ... [2019-11-28 17:11:27,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:27" (1/1) ... [2019-11-28 17:11:27,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:11:27,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:11:27,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:11:27,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:11:27,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:27" (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 [2019-11-28 17:11:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:11:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:11:27,940 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:11:27,940 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-28 17:11:27,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:11:27 BoogieIcfgContainer [2019-11-28 17:11:27,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:11:27,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:11:27,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:11:27,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:11:27,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:11:27" (1/3) ... [2019-11-28 17:11:27,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eaa8141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:11:27, skipping insertion in model container [2019-11-28 17:11:27,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:27" (2/3) ... [2019-11-28 17:11:27,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eaa8141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:11:27, skipping insertion in model container [2019-11-28 17:11:27,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:11:27" (3/3) ... [2019-11-28 17:11:27,951 INFO L109 eAbstractionObserver]: Analyzing ICFG geo1.c [2019-11-28 17:11:27,976 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:11:27,985 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 17:11:27,998 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-28 17:11:28,025 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:11:28,025 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:11:28,025 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:11:28,026 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:11:28,026 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:11:28,026 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:11:28,027 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:11:28,027 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:11:28,043 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-28 17:11:28,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 17:11:28,050 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:11:28,051 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 17:11:28,052 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:11:28,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:11:28,059 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-28 17:11:28,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:11:28,067 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121267460] [2019-11-28 17:11:28,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:11:28,159 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 17:11:28,159 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [399156326] [2019-11-28 17:11:28,160 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 [2019-11-28 17:11:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:11:28,221 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 17:11:28,227 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:11:28,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:11:28,295 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121267460] [2019-11-28 17:11:28,295 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 17:11:28,296 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399156326] [2019-11-28 17:11:28,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:11:28,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:11:28,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855266104] [2019-11-28 17:11:28,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:11:28,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:11:28,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:11:28,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:11:28,328 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2019-11-28 17:11:28,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:11:28,417 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2019-11-28 17:11:28,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:11:28,420 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-28 17:11:28,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:11:28,429 INFO L225 Difference]: With dead ends: 37 [2019-11-28 17:11:28,430 INFO L226 Difference]: Without dead ends: 14 [2019-11-28 17:11:28,437 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:11:28,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-28 17:11:28,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-11-28 17:11:28,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-28 17:11:28,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-11-28 17:11:28,471 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2019-11-28 17:11:28,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:11:28,472 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-11-28 17:11:28,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:11:28,473 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-11-28 17:11:28,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 17:11:28,473 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:11:28,474 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-28 17:11:28,676 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:11:28,677 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:11:28,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:11:28,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1360983589, now seen corresponding path program 1 times [2019-11-28 17:11:28,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:11:28,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067613787] [2019-11-28 17:11:28,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:11:28,689 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 17:11:28,689 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [140575979] [2019-11-28 17:11:28,690 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 [2019-11-28 17:11:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:11:28,724 WARN L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-28 17:11:28,728 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:11:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:11:28,872 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067613787] [2019-11-28 17:11:28,872 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 17:11:28,873 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140575979] [2019-11-28 17:11:28,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-28 17:11:28,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-11-28 17:11:28,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372074124] [2019-11-28 17:11:28,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 17:11:28,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:11:28,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 17:11:28,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 17:11:28,879 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2019-11-28 17:11:28,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:11:28,945 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-11-28 17:11:28,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:11:28,946 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2019-11-28 17:11:28,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:11:28,947 INFO L225 Difference]: With dead ends: 23 [2019-11-28 17:11:28,947 INFO L226 Difference]: Without dead ends: 17 [2019-11-28 17:11:28,948 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-28 17:11:28,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-28 17:11:28,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-28 17:11:28,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 17:11:28,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-11-28 17:11:28,954 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2019-11-28 17:11:28,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:11:28,954 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-11-28 17:11:28,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 17:11:28,955 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-11-28 17:11:28,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 17:11:28,956 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:11:28,956 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2019-11-28 17:11:29,159 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:11:29,160 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:11:29,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:11:29,160 INFO L82 PathProgramCache]: Analyzing trace with hash -565900116, now seen corresponding path program 2 times [2019-11-28 17:11:29,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:11:29,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56400547] [2019-11-28 17:11:29,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:11:29,168 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 17:11:29,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730953856] [2019-11-28 17:11:29,169 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 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 [2019-11-28 17:11:29,198 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-28 17:11:29,199 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 17:11:29,200 WARN L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 30 conjunts are in the unsatisfiable core [2019-11-28 17:11:29,202 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:11:32,160 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:11:32,160 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56400547] [2019-11-28 17:11:32,160 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 17:11:32,161 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730953856] [2019-11-28 17:11:32,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-28 17:11:32,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-11-28 17:11:32,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022483981] [2019-11-28 17:11:32,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 17:11:32,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:11:32,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 17:11:32,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=38, Unknown=1, NotChecked=0, Total=56 [2019-11-28 17:11:32,163 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 8 states. [2019-11-28 17:11:34,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:11:34,338 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-11-28 17:11:34,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 17:11:34,339 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-11-28 17:11:34,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:11:34,340 INFO L225 Difference]: With dead ends: 26 [2019-11-28 17:11:34,340 INFO L226 Difference]: Without dead ends: 20 [2019-11-28 17:11:34,341 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=21, Invalid=50, Unknown=1, NotChecked=0, Total=72 [2019-11-28 17:11:34,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-28 17:11:34,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-11-28 17:11:34,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 17:11:34,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-28 17:11:34,347 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2019-11-28 17:11:34,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:11:34,347 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-11-28 17:11:34,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 17:11:34,347 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-28 17:11:34,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 17:11:34,348 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:11:34,348 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2019-11-28 17:11:34,551 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:11:34,552 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:11:34,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:11:34,553 INFO L82 PathProgramCache]: Analyzing trace with hash -978793413, now seen corresponding path program 3 times [2019-11-28 17:11:34,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:11:34,554 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147016723] [2019-11-28 17:11:34,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:11:34,561 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 17:11:34,561 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [258897611] [2019-11-28 17:11:34,562 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2019-11-28 17:11:34,595 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-28 17:11:34,595 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 17:11:34,596 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-28 17:11:34,598 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:11:34,636 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:11:34,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:11:34,713 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-28 17:11:34,713 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147016723] [2019-11-28 17:11:34,713 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 17:11:34,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258897611] [2019-11-28 17:11:34,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-28 17:11:34,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-11-28 17:11:34,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239850574] [2019-11-28 17:11:34,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 17:11:34,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:11:34,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 17:11:34,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-28 17:11:34,721 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 7 states. [2019-11-28 17:11:34,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:11:34,797 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-11-28 17:11:34,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:11:34,797 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-28 17:11:34,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:11:34,798 INFO L225 Difference]: With dead ends: 19 [2019-11-28 17:11:34,798 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 17:11:34,801 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-11-28 17:11:34,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 17:11:34,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 17:11:34,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 17:11:34,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 17:11:34,802 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-28 17:11:34,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:11:34,802 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 17:11:34,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 17:11:34,803 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 17:11:34,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 17:11:35,008 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:11:35,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 17:11:35,097 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 17:11:35,098 INFO L242 CegarLoopResult]: At program point L27-2(lines 27 37) the Hoare annotation is: (let ((.cse0 (exists ((v_ULTIMATE.start_main_~x~0_14 Int)) (let ((.cse1 (* v_ULTIMATE.start_main_~x~0_14 ULTIMATE.start_main_~z~0))) (and (= ULTIMATE.start_main_~x~0 (+ .cse1 1)) (= ULTIMATE.start_main_~y~0 (* (+ .cse1 (* v_ULTIMATE.start_main_~x~0_14 (- 1)) 1) ULTIMATE.start_main_~z~0))))))) (or (and .cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (and .cse0 (= ULTIMATE.start_main_~x~0 1)))) [2019-11-28 17:11:35,098 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-11-28 17:11:35,098 INFO L246 CegarLoopResult]: For program point L27-3(lines 27 37) no Hoare annotation was computed. [2019-11-28 17:11:35,098 INFO L246 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2019-11-28 17:11:35,099 INFO L249 CegarLoopResult]: At program point L42(lines 17 43) the Hoare annotation is: true [2019-11-28 17:11:35,099 INFO L242 CegarLoopResult]: At program point L11-2(lines 30 31) the Hoare annotation is: (and (exists ((v_ULTIMATE.start_main_~x~0_14 Int)) (let ((.cse0 (* v_ULTIMATE.start_main_~x~0_14 ULTIMATE.start_main_~z~0))) (and (= ULTIMATE.start_main_~x~0 (+ .cse0 1)) (= ULTIMATE.start_main_~y~0 (* (+ .cse0 (* v_ULTIMATE.start_main_~x~0_14 (- 1)) 1) ULTIMATE.start_main_~z~0))))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) [2019-11-28 17:11:35,099 INFO L246 CegarLoopResult]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2019-11-28 17:11:35,099 INFO L249 CegarLoopResult]: At program point L11-5(lines 10 16) the Hoare annotation is: true [2019-11-28 17:11:35,099 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 17:11:35,100 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 17:11:35,100 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-11-28 17:11:35,100 INFO L246 CegarLoopResult]: For program point L12(lines 12 13) no Hoare annotation was computed. [2019-11-28 17:11:35,100 INFO L246 CegarLoopResult]: For program point L12-1(lines 12 13) no Hoare annotation was computed. [2019-11-28 17:11:35,111 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,112 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,112 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,118 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,118 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,118 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,122 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,124 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:11:35 BoogieIcfgContainer [2019-11-28 17:11:35,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:11:35,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:11:35,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:11:35,127 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:11:35,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:11:27" (3/4) ... [2019-11-28 17:11:35,132 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 17:11:35,143 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 17:11:35,143 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 17:11:35,174 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start_main_~x~0_14 : int :: x == v_ULTIMATE.start_main_~x~0_14 * z + 1 && y == (v_ULTIMATE.start_main_~x~0_14 * z + v_ULTIMATE.start_main_~x~0_14 * -1 + 1) * z) && 1 == cond) || ((\exists v_ULTIMATE.start_main_~x~0_14 : int :: x == v_ULTIMATE.start_main_~x~0_14 * z + 1 && y == (v_ULTIMATE.start_main_~x~0_14 * z + v_ULTIMATE.start_main_~x~0_14 * -1 + 1) * z) && x == 1) [2019-11-28 17:11:35,175 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_main_~x~0_14 : int :: x == v_ULTIMATE.start_main_~x~0_14 * z + 1 && y == (v_ULTIMATE.start_main_~x~0_14 * z + v_ULTIMATE.start_main_~x~0_14 * -1 + 1) * z) && 1 == cond [2019-11-28 17:11:35,194 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:11:35,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:11:35,197 INFO L168 Benchmark]: Toolchain (without parser) took 7918.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 960.4 MB in the beginning and 991.1 MB in the end (delta: -30.7 MB). Peak memory consumption was 110.3 MB. Max. memory is 11.5 GB. [2019-11-28 17:11:35,198 INFO L168 Benchmark]: CDTParser took 1.05 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. [2019-11-28 17:11:35,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.80 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:11:35,199 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:11:35,200 INFO L168 Benchmark]: Boogie Preprocessor took 20.67 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 17:11:35,201 INFO L168 Benchmark]: RCFGBuilder took 243.34 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-11-28 17:11:35,201 INFO L168 Benchmark]: TraceAbstraction took 7183.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.1 MB in the end (delta: 126.9 MB). Peak memory consumption was 126.9 MB. Max. memory is 11.5 GB. [2019-11-28 17:11:35,202 INFO L168 Benchmark]: Witness Printer took 67.63 ms. Allocated memory is still 1.2 GB. Free memory is still 991.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:11:35,206 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05 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 305.80 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.67 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 243.34 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7183.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.1 MB in the end (delta: 126.9 MB). Peak memory consumption was 126.9 MB. Max. memory is 11.5 GB. * Witness Printer took 67.63 ms. Allocated memory is still 1.2 GB. Free memory is still 991.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant [2019-11-28 17:11:35,216 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,216 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,217 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,217 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,217 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,218 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_main_~x~0_14 : int :: x == v_ULTIMATE.start_main_~x~0_14 * z + 1 && y == (v_ULTIMATE.start_main_~x~0_14 * z + v_ULTIMATE.start_main_~x~0_14 * -1 + 1) * z) && 1 == cond - InvariantResult [Line: 27]: Loop Invariant [2019-11-28 17:11:35,218 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,218 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,219 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,219 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,219 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,219 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,220 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,220 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,221 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,221 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,221 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-11-28 17:11:35,221 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_main_~x~0_14 : int :: x == v_ULTIMATE.start_main_~x~0_14 * z + 1 && y == (v_ULTIMATE.start_main_~x~0_14 * z + v_ULTIMATE.start_main_~x~0_14 * -1 + 1) * z) && 1 == cond) || ((\exists v_ULTIMATE.start_main_~x~0_14 : int :: x == v_ULTIMATE.start_main_~x~0_14 * z + 1 && y == (v_ULTIMATE.start_main_~x~0_14 * z + v_ULTIMATE.start_main_~x~0_14 * -1 + 1) * z) && x == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Result: SAFE, OverallTime: 6.9s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 34 SDslu, 54 SDs, 0 SdLazy, 83 SolverSat, 26 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=3, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 16 NumberOfFragments, 78 HoareAnnotationTreeSize, 4 FomulaSimplifications, 183 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 30 ConstructedInterpolants, 1 QuantifiedInterpolants, 1884 SizeOfPredicates, 32 NumberOfNonLiveVariables, 152 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 13/24 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...