./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/underapprox_2-1.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/loop-acceleration/underapprox_2-1.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 452a4ddc5d154328a041fd76cdcbb5b63a51957d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 17:05:24,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:05:24,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:05:24,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:05:24,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:05:24,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:05:24,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:05:24,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:05:24,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:05:24,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:05:24,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:05:24,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:05:24,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:05:24,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:05:24,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:05:24,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:05:24,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:05:24,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:05:24,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:05:24,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:05:24,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:05:24,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:05:24,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:05:24,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:05:24,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:05:24,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:05:24,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:05:24,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:05:24,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:05:24,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:05:24,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:05:24,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:05:24,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:05:24,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:05:24,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:05:24,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:05:24,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:05:24,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:05:24,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:05:24,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:05:24,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:05:24,184 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:05:24,199 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:05:24,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:05:24,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:05:24,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:05:24,202 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:05:24,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:05:24,202 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:05:24,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:05:24,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:05:24,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:05:24,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:05:24,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:05:24,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:05:24,204 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:05:24,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:05:24,205 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:05:24,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:05:24,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:05:24,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:05:24,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:05:24,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:05:24,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:05:24,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:05:24,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:05:24,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:05:24,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:05:24,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:05:24,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:05:24,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:05:24,209 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 -> 452a4ddc5d154328a041fd76cdcbb5b63a51957d [2019-11-28 17:05:24,533 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:05:24,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:05:24,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:05:24,558 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:05:24,559 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:05:24,560 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/underapprox_2-1.c [2019-11-28 17:05:24,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7761e1f/c7ad3c077dec4d9b9611809e10d987a3/FLAGf79e67680 [2019-11-28 17:05:25,100 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:05:25,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/underapprox_2-1.c [2019-11-28 17:05:25,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7761e1f/c7ad3c077dec4d9b9611809e10d987a3/FLAGf79e67680 [2019-11-28 17:05:25,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7761e1f/c7ad3c077dec4d9b9611809e10d987a3 [2019-11-28 17:05:25,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:05:25,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:05:25,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:05:25,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:05:25,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:05:25,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:05:25" (1/1) ... [2019-11-28 17:05:25,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bc03040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:25, skipping insertion in model container [2019-11-28 17:05:25,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:05:25" (1/1) ... [2019-11-28 17:05:25,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:05:25,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:05:25,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:05:25,684 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:05:25,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:05:25,707 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:05:25,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:25 WrapperNode [2019-11-28 17:05:25,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:05:25,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:05:25,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:05:25,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:05:25,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:25" (1/1) ... [2019-11-28 17:05:25,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:25" (1/1) ... [2019-11-28 17:05:25,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:05:25,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:05:25,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:05:25,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:05:25,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:25" (1/1) ... [2019-11-28 17:05:25,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:25" (1/1) ... [2019-11-28 17:05:25,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:25" (1/1) ... [2019-11-28 17:05:25,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:25" (1/1) ... [2019-11-28 17:05:25,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:25" (1/1) ... [2019-11-28 17:05:25,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:25" (1/1) ... [2019-11-28 17:05:25,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:25" (1/1) ... [2019-11-28 17:05:25,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:05:25,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:05:25,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:05:25,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:05:25,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:25" (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 17:05:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:05:25,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:05:26,010 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:05:26,011 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 17:05:26,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:05:26 BoogieIcfgContainer [2019-11-28 17:05:26,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:05:26,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:05:26,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:05:26,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:05:26,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:05:25" (1/3) ... [2019-11-28 17:05:26,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55430f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:05:26, skipping insertion in model container [2019-11-28 17:05:26,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:25" (2/3) ... [2019-11-28 17:05:26,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55430f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:05:26, skipping insertion in model container [2019-11-28 17:05:26,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:05:26" (3/3) ... [2019-11-28 17:05:26,020 INFO L109 eAbstractionObserver]: Analyzing ICFG underapprox_2-1.c [2019-11-28 17:05:26,027 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:05:26,032 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 17:05:26,043 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 17:05:26,064 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:05:26,064 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:05:26,064 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:05:26,064 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:05:26,065 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:05:26,065 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:05:26,065 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:05:26,065 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:05:26,076 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-28 17:05:26,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 17:05:26,081 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:05:26,082 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 17:05:26,083 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:05:26,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:05:26,087 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2019-11-28 17:05:26,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:05:26,095 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156762637] [2019-11-28 17:05:26,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:05:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:05:26,349 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 17:05:26,350 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156762637] [2019-11-28 17:05:26,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:05:26,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:05:26,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413600584] [2019-11-28 17:05:26,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:05:26,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:05:26,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:05:26,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:05:26,384 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-28 17:05:26,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:05:26,431 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2019-11-28 17:05:26,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 17:05:26,433 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-28 17:05:26,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:05:26,442 INFO L225 Difference]: With dead ends: 17 [2019-11-28 17:05:26,443 INFO L226 Difference]: Without dead ends: 7 [2019-11-28 17:05:26,446 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:05:26,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-11-28 17:05:26,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-28 17:05:26,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-28 17:05:26,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-11-28 17:05:26,475 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-11-28 17:05:26,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:05:26,476 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-11-28 17:05:26,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:05:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-11-28 17:05:26,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-28 17:05:26,477 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:05:26,477 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-28 17:05:26,477 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:05:26,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:05:26,478 INFO L82 PathProgramCache]: Analyzing trace with hash 925620370, now seen corresponding path program 1 times [2019-11-28 17:05:26,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:05:26,478 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799227374] [2019-11-28 17:05:26,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:05:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:05:26,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:05:26,581 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799227374] [2019-11-28 17:05:26,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119503419] [2019-11-28 17:05:26,582 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 17:05:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:05:26,618 WARN L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-28 17:05:26,623 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:05:26,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:05:26,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:05:26,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2019-11-28 17:05:26,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452436292] [2019-11-28 17:05:26,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 17:05:26,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:05:26,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 17:05:26,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 17:05:26,659 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2019-11-28 17:05:26,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:05:26,703 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-11-28 17:05:26,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 17:05:26,706 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-11-28 17:05:26,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:05:26,706 INFO L225 Difference]: With dead ends: 12 [2019-11-28 17:05:26,707 INFO L226 Difference]: Without dead ends: 8 [2019-11-28 17:05:26,710 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 17:05:26,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-28 17:05:26,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-28 17:05:26,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-28 17:05:26,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-28 17:05:26,714 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-11-28 17:05:26,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:05:26,714 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-28 17:05:26,715 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 17:05:26,715 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-28 17:05:26,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 17:05:26,715 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:05:26,715 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-28 17:05:26,924 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:05:26,925 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:05:26,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:05:26,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1368874232, now seen corresponding path program 2 times [2019-11-28 17:05:26,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:05:26,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688194285] [2019-11-28 17:05:26,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:05:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:05:27,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:05:27,055 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688194285] [2019-11-28 17:05:27,055 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75931520] [2019-11-28 17:05:27,055 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 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 17:05:27,084 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-28 17:05:27,084 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 17:05:27,086 WARN L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-28 17:05:27,087 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:05:27,108 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:05:27,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:05:27,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2019-11-28 17:05:27,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242200520] [2019-11-28 17:05:27,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 17:05:27,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:05:27,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 17:05:27,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-28 17:05:27,110 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2019-11-28 17:05:27,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:05:27,140 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-11-28 17:05:27,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:05:27,141 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-11-28 17:05:27,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:05:27,142 INFO L225 Difference]: With dead ends: 13 [2019-11-28 17:05:27,142 INFO L226 Difference]: Without dead ends: 9 [2019-11-28 17:05:27,143 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-28 17:05:27,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-28 17:05:27,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-28 17:05:27,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 17:05:27,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-28 17:05:27,147 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-11-28 17:05:27,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:05:27,147 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-28 17:05:27,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 17:05:27,148 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-28 17:05:27,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 17:05:27,148 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:05:27,149 INFO L410 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2019-11-28 17:05:27,350 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:05:27,350 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:05:27,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:05:27,351 INFO L82 PathProgramCache]: Analyzing trace with hash 516237138, now seen corresponding path program 3 times [2019-11-28 17:05:27,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:05:27,352 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925034177] [2019-11-28 17:05:27,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:05:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:05:27,483 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:05:27,484 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925034177] [2019-11-28 17:05:27,484 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066501100] [2019-11-28 17:05:27,484 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 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 17:05:27,516 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-28 17:05:27,517 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 17:05:27,518 WARN L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-28 17:05:27,519 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:05:27,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:05:27,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:05:27,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2019-11-28 17:05:27,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372869283] [2019-11-28 17:05:27,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 17:05:27,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:05:27,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 17:05:27,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-28 17:05:27,553 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 8 states. [2019-11-28 17:05:27,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:05:27,604 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-11-28 17:05:27,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:05:27,605 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2019-11-28 17:05:27,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:05:27,606 INFO L225 Difference]: With dead ends: 14 [2019-11-28 17:05:27,606 INFO L226 Difference]: Without dead ends: 10 [2019-11-28 17:05:27,607 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-28 17:05:27,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-28 17:05:27,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-28 17:05:27,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 17:05:27,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-28 17:05:27,610 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-11-28 17:05:27,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:05:27,611 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-28 17:05:27,611 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 17:05:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-28 17:05:27,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 17:05:27,612 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:05:27,612 INFO L410 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2019-11-28 17:05:27,815 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:05:27,816 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:05:27,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:05:27,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1174852536, now seen corresponding path program 4 times [2019-11-28 17:05:27,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:05:27,818 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422972731] [2019-11-28 17:05:27,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:05:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:05:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:05:27,939 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422972731] [2019-11-28 17:05:27,940 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527082695] [2019-11-28 17:05:27,940 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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) [2019-11-28 17:05:27,969 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-28 17:05:27,970 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:05:27,971 WARN L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-28 17:05:27,972 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:05:28,003 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:05:28,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:05:28,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2019-11-28 17:05:28,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171131275] [2019-11-28 17:05:28,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-28 17:05:28,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:05:28,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 17:05:28,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-28 17:05:28,005 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2019-11-28 17:05:28,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:05:28,064 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-11-28 17:05:28,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 17:05:28,064 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 9 [2019-11-28 17:05:28,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:05:28,065 INFO L225 Difference]: With dead ends: 15 [2019-11-28 17:05:28,065 INFO L226 Difference]: Without dead ends: 11 [2019-11-28 17:05:28,066 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-28 17:05:28,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-28 17:05:28,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-28 17:05:28,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 17:05:28,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-11-28 17:05:28,070 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2019-11-28 17:05:28,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:05:28,070 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-11-28 17:05:28,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-28 17:05:28,070 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-11-28 17:05:28,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 17:05:28,071 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:05:28,071 INFO L410 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1] [2019-11-28 17:05:28,276 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:05:28,276 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:05:28,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:05:28,277 INFO L82 PathProgramCache]: Analyzing trace with hash -2059024878, now seen corresponding path program 5 times [2019-11-28 17:05:28,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:05:28,277 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362467688] [2019-11-28 17:05:28,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:05:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:05:28,442 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:05:28,443 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362467688] [2019-11-28 17:05:28,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592219573] [2019-11-28 17:05:28,444 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:05:28,485 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2019-11-28 17:05:28,486 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 17:05:28,487 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-28 17:05:28,489 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:05:28,516 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:05:28,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:05:28,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 9 [2019-11-28 17:05:28,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159489080] [2019-11-28 17:05:28,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 17:05:28,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:05:28,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 17:05:28,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-28 17:05:28,518 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2019-11-28 17:05:28,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:05:28,582 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-11-28 17:05:28,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 17:05:28,583 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2019-11-28 17:05:28,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:05:28,583 INFO L225 Difference]: With dead ends: 16 [2019-11-28 17:05:28,584 INFO L226 Difference]: Without dead ends: 12 [2019-11-28 17:05:28,584 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-28 17:05:28,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-28 17:05:28,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-28 17:05:28,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-28 17:05:28,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-28 17:05:28,591 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-11-28 17:05:28,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:05:28,592 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-11-28 17:05:28,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 17:05:28,592 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-28 17:05:28,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 17:05:28,594 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:05:28,594 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1] [2019-11-28 17:05:28,798 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:05:28,799 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:05:28,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:05:28,800 INFO L82 PathProgramCache]: Analyzing trace with hash 596403592, now seen corresponding path program 6 times [2019-11-28 17:05:28,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:05:28,801 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612439014] [2019-11-28 17:05:28,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:05:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:05:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:05:28,876 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 17:05:28,876 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 17:05:28,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:05:28 BoogieIcfgContainer [2019-11-28 17:05:28,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:05:28,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:05:28,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:05:28,903 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:05:28,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:05:26" (3/4) ... [2019-11-28 17:05:28,906 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 17:05:28,998 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:05:28,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:05:29,001 INFO L168 Benchmark]: Toolchain (without parser) took 3553.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 959.0 MB in the beginning and 927.8 MB in the end (delta: 31.2 MB). Peak memory consumption was 149.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:05:29,001 INFO L168 Benchmark]: CDTParser took 0.89 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 17:05:29,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.96 ms. Allocated memory is still 1.0 GB. Free memory was 959.0 MB in the beginning and 948.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:05:29,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.63 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:05:29,003 INFO L168 Benchmark]: Boogie Preprocessor took 70.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:05:29,004 INFO L168 Benchmark]: RCFGBuilder took 204.11 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:05:29,005 INFO L168 Benchmark]: TraceAbstraction took 2888.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 934.5 MB in the end (delta: 161.8 MB). Peak memory consumption was 161.8 MB. Max. memory is 11.5 GB. [2019-11-28 17:05:29,005 INFO L168 Benchmark]: Witness Printer took 96.06 ms. Allocated memory is still 1.1 GB. Free memory was 934.5 MB in the beginning and 927.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:05:29,009 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 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 259.96 ms. Allocated memory is still 1.0 GB. Free memory was 959.0 MB in the beginning and 948.3 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 27.63 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 204.11 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2888.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 934.5 MB in the end (delta: 161.8 MB). Peak memory consumption was 161.8 MB. Max. memory is 11.5 GB. * Witness Printer took 96.06 ms. Allocated memory is still 1.1 GB. Free memory was 934.5 MB in the beginning and 927.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] unsigned int x = 0; [L12] unsigned int y = 1; [L14] COND TRUE x < 6 [L15] x++ [L16] y *= 2 [L14] COND TRUE x < 6 [L15] x++ [L16] y *= 2 [L14] COND TRUE x < 6 [L15] x++ [L16] y *= 2 [L14] COND TRUE x < 6 [L15] x++ [L16] y *= 2 [L14] COND TRUE x < 6 [L15] x++ [L16] y *= 2 [L14] COND TRUE x < 6 [L15] x++ [L16] y *= 2 [L14] COND FALSE !(x < 6) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 6, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 2 SDslu, 55 SDs, 0 SdLazy, 175 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 26 SyntacticMatches, 16 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=6, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 2607 SizeOfPredicates, 0 NumberOfNonLiveVariables, 145 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 0/70 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...