./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 30f4e4ab 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 0.1.24-30f4e4a [2019-11-28 00:01:12,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 00:01:12,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 00:01:12,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 00:01:12,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 00:01:12,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 00:01:12,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 00:01:12,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 00:01:12,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 00:01:12,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 00:01:12,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 00:01:12,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 00:01:12,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 00:01:12,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 00:01:12,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 00:01:12,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 00:01:12,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 00:01:12,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 00:01:12,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 00:01:12,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 00:01:12,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 00:01:12,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 00:01:12,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 00:01:12,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 00:01:12,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 00:01:12,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 00:01:12,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 00:01:12,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 00:01:12,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 00:01:12,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 00:01:12,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 00:01:12,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 00:01:12,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 00:01:12,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 00:01:12,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 00:01:12,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 00:01:12,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 00:01:12,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 00:01:12,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 00:01:12,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 00:01:12,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 00:01:12,426 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 00:01:12,444 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 00:01:12,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 00:01:12,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 00:01:12,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 00:01:12,446 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 00:01:12,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 00:01:12,446 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 00:01:12,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 00:01:12,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 00:01:12,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 00:01:12,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 00:01:12,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 00:01:12,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 00:01:12,448 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 00:01:12,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 00:01:12,448 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 00:01:12,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 00:01:12,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 00:01:12,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 00:01:12,449 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 00:01:12,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 00:01:12,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:01:12,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 00:01:12,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 00:01:12,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 00:01:12,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 00:01:12,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 00:01:12,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 00:01:12,451 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 00:01:12,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 00:01:12,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 00:01:12,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 00:01:12,796 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 00:01:12,797 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 00:01:12,797 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/underapprox_2-1.c [2019-11-28 00:01:12,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd92a83da/4d0d68512df748448aec22577860be4d/FLAGcfe145fb4 [2019-11-28 00:01:13,275 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 00:01:13,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/underapprox_2-1.c [2019-11-28 00:01:13,282 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd92a83da/4d0d68512df748448aec22577860be4d/FLAGcfe145fb4 [2019-11-28 00:01:13,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd92a83da/4d0d68512df748448aec22577860be4d [2019-11-28 00:01:13,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 00:01:13,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 00:01:13,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 00:01:13,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 00:01:13,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 00:01:13,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:01:13" (1/1) ... [2019-11-28 00:01:13,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4696e6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:13, skipping insertion in model container [2019-11-28 00:01:13,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:01:13" (1/1) ... [2019-11-28 00:01:13,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 00:01:13,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 00:01:13,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:01:13,878 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 00:01:13,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:01:13,913 INFO L208 MainTranslator]: Completed translation [2019-11-28 00:01:13,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:13 WrapperNode [2019-11-28 00:01:13,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 00:01:13,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 00:01:13,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 00:01:13,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 00:01:13,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:13" (1/1) ... [2019-11-28 00:01:13,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:13" (1/1) ... [2019-11-28 00:01:13,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 00:01:13,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 00:01:13,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 00:01:13,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 00:01:14,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:13" (1/1) ... [2019-11-28 00:01:14,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:13" (1/1) ... [2019-11-28 00:01:14,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:13" (1/1) ... [2019-11-28 00:01:14,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:13" (1/1) ... [2019-11-28 00:01:14,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:13" (1/1) ... [2019-11-28 00:01:14,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:13" (1/1) ... [2019-11-28 00:01:14,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:13" (1/1) ... [2019-11-28 00:01:14,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 00:01:14,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 00:01:14,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 00:01:14,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 00:01:14,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:13" (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 00:01:14,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 00:01:14,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 00:01:14,226 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 00:01:14,227 INFO L297 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 00:01:14,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:01:14 BoogieIcfgContainer [2019-11-28 00:01:14,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 00:01:14,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 00:01:14,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 00:01:14,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 00:01:14,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:01:13" (1/3) ... [2019-11-28 00:01:14,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b2b822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:01:14, skipping insertion in model container [2019-11-28 00:01:14,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:01:13" (2/3) ... [2019-11-28 00:01:14,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b2b822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:01:14, skipping insertion in model container [2019-11-28 00:01:14,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:01:14" (3/3) ... [2019-11-28 00:01:14,234 INFO L109 eAbstractionObserver]: Analyzing ICFG underapprox_2-1.c [2019-11-28 00:01:14,243 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 00:01:14,249 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 00:01:14,261 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 00:01:14,281 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 00:01:14,282 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 00:01:14,282 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 00:01:14,282 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 00:01:14,282 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 00:01:14,282 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 00:01:14,282 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 00:01:14,283 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 00:01:14,294 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-28 00:01:14,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 00:01:14,298 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:01:14,299 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 00:01:14,300 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:01:14,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:01:14,305 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2019-11-28 00:01:14,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:01:14,314 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347235772] [2019-11-28 00:01:14,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:01:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:01:14,635 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 5 [2019-11-28 00:01:14,647 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 00:01:14,648 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347235772] [2019-11-28 00:01:14,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:01:14,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 00:01:14,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467651291] [2019-11-28 00:01:14,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 00:01:14,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:01:14,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 00:01:14,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 00:01:14,673 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-28 00:01:14,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:01:14,719 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2019-11-28 00:01:14,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 00:01:14,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-28 00:01:14,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:01:14,730 INFO L225 Difference]: With dead ends: 17 [2019-11-28 00:01:14,731 INFO L226 Difference]: Without dead ends: 7 [2019-11-28 00:01:14,734 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 00:01:14,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-11-28 00:01:14,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-28 00:01:14,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-28 00:01:14,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-11-28 00:01:14,761 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-11-28 00:01:14,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:01:14,762 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-11-28 00:01:14,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 00:01:14,762 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-11-28 00:01:14,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-28 00:01:14,762 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:01:14,762 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-28 00:01:14,763 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:01:14,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:01:14,763 INFO L82 PathProgramCache]: Analyzing trace with hash 925620370, now seen corresponding path program 1 times [2019-11-28 00:01:14,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:01:14,764 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945723092] [2019-11-28 00:01:14,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:01:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:01:14,866 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 00:01:14,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945723092] [2019-11-28 00:01:14,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120579486] [2019-11-28 00:01:14,868 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 00:01:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:01:14,896 WARN L253 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-28 00:01:14,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 00:01:14,935 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 00:01:14,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 00:01:14,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2019-11-28 00:01:14,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475249856] [2019-11-28 00:01:14,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 00:01:14,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:01:14,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 00:01:14,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 00:01:14,939 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2019-11-28 00:01:14,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:01:14,971 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-11-28 00:01:14,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 00:01:14,972 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-11-28 00:01:14,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:01:14,973 INFO L225 Difference]: With dead ends: 12 [2019-11-28 00:01:14,973 INFO L226 Difference]: Without dead ends: 8 [2019-11-28 00:01:14,974 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 00:01:14,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-28 00:01:14,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-28 00:01:14,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-28 00:01:14,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-28 00:01:14,979 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-11-28 00:01:14,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:01:14,980 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-28 00:01:14,981 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 00:01:14,981 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-28 00:01:14,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 00:01:14,982 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:01:14,982 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-28 00:01:15,186 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 00:01:15,186 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:01:15,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:01:15,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1368874232, now seen corresponding path program 2 times [2019-11-28 00:01:15,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:01:15,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822863093] [2019-11-28 00:01:15,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:01:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:01:15,300 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 00:01:15,301 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822863093] [2019-11-28 00:01:15,301 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605719700] [2019-11-28 00:01:15,301 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 00:01:15,337 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-28 00:01:15,338 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 00:01:15,339 WARN L253 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-28 00:01:15,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 00:01:15,368 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 00:01:15,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 00:01:15,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2019-11-28 00:01:15,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483867331] [2019-11-28 00:01:15,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 00:01:15,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:01:15,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 00:01:15,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-28 00:01:15,371 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2019-11-28 00:01:15,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:01:15,407 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-11-28 00:01:15,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 00:01:15,409 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-11-28 00:01:15,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:01:15,410 INFO L225 Difference]: With dead ends: 13 [2019-11-28 00:01:15,410 INFO L226 Difference]: Without dead ends: 9 [2019-11-28 00:01:15,411 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 00:01:15,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-28 00:01:15,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-28 00:01:15,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 00:01:15,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-28 00:01:15,415 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-11-28 00:01:15,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:01:15,415 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-28 00:01:15,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 00:01:15,415 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-28 00:01:15,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 00:01:15,417 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:01:15,417 INFO L410 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2019-11-28 00:01:15,618 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 00:01:15,618 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:01:15,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:01:15,619 INFO L82 PathProgramCache]: Analyzing trace with hash 516237138, now seen corresponding path program 3 times [2019-11-28 00:01:15,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:01:15,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442299354] [2019-11-28 00:01:15,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:01:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:01:15,769 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 00:01:15,771 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442299354] [2019-11-28 00:01:15,771 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237618568] [2019-11-28 00:01:15,771 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 00:01:15,811 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-28 00:01:15,812 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 00:01:15,813 WARN L253 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-28 00:01:15,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 00:01:15,842 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 00:01:15,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 00:01:15,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2019-11-28 00:01:15,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153342057] [2019-11-28 00:01:15,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 00:01:15,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:01:15,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 00:01:15,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-28 00:01:15,846 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 8 states. [2019-11-28 00:01:15,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:01:15,903 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-11-28 00:01:15,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 00:01:15,904 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2019-11-28 00:01:15,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:01:15,905 INFO L225 Difference]: With dead ends: 14 [2019-11-28 00:01:15,905 INFO L226 Difference]: Without dead ends: 10 [2019-11-28 00:01:15,906 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 00:01:15,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-28 00:01:15,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-28 00:01:15,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 00:01:15,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-28 00:01:15,912 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-11-28 00:01:15,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:01:15,914 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-28 00:01:15,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 00:01:15,915 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-28 00:01:15,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 00:01:15,915 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:01:15,916 INFO L410 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2019-11-28 00:01:16,120 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 00:01:16,121 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:01:16,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:01:16,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1174852536, now seen corresponding path program 4 times [2019-11-28 00:01:16,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:01:16,123 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930368118] [2019-11-28 00:01:16,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:01:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:01:16,298 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 00:01:16,298 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930368118] [2019-11-28 00:01:16,298 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592219573] [2019-11-28 00:01:16,299 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) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 00:01:16,321 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-28 00:01:16,321 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 00:01:16,322 WARN L253 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-28 00:01:16,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 00:01:16,348 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 00:01:16,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 00:01:16,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2019-11-28 00:01:16,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625333866] [2019-11-28 00:01:16,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-28 00:01:16,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:01:16,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 00:01:16,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-28 00:01:16,353 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2019-11-28 00:01:16,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:01:16,415 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-11-28 00:01:16,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 00:01:16,416 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 9 [2019-11-28 00:01:16,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:01:16,417 INFO L225 Difference]: With dead ends: 15 [2019-11-28 00:01:16,417 INFO L226 Difference]: Without dead ends: 11 [2019-11-28 00:01:16,417 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 00:01:16,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-28 00:01:16,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-28 00:01:16,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 00:01:16,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-11-28 00:01:16,421 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2019-11-28 00:01:16,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:01:16,421 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-11-28 00:01:16,422 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-28 00:01:16,422 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-11-28 00:01:16,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 00:01:16,422 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:01:16,422 INFO L410 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1] [2019-11-28 00:01:16,623 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 00:01:16,623 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:01:16,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:01:16,624 INFO L82 PathProgramCache]: Analyzing trace with hash -2059024878, now seen corresponding path program 5 times [2019-11-28 00:01:16,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:01:16,625 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052008168] [2019-11-28 00:01:16,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:01:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:01:16,763 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 00:01:16,764 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052008168] [2019-11-28 00:01:16,764 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527828500] [2019-11-28 00:01:16,764 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 00:01:16,820 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2019-11-28 00:01:16,821 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 00:01:16,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-28 00:01:16,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 00:01:16,849 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 00:01:16,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 00:01:16,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 9 [2019-11-28 00:01:16,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503401733] [2019-11-28 00:01:16,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 00:01:16,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:01:16,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 00:01:16,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-28 00:01:16,856 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2019-11-28 00:01:16,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:01:16,912 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-11-28 00:01:16,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 00:01:16,913 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2019-11-28 00:01:16,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:01:16,914 INFO L225 Difference]: With dead ends: 16 [2019-11-28 00:01:16,914 INFO L226 Difference]: Without dead ends: 12 [2019-11-28 00:01:16,914 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 00:01:16,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-28 00:01:16,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-28 00:01:16,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-28 00:01:16,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-28 00:01:16,918 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-11-28 00:01:16,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:01:16,918 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-11-28 00:01:16,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 00:01:16,919 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-28 00:01:16,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 00:01:16,919 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:01:16,919 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1] [2019-11-28 00:01:17,122 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 00:01:17,123 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:01:17,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:01:17,124 INFO L82 PathProgramCache]: Analyzing trace with hash 596403592, now seen corresponding path program 6 times [2019-11-28 00:01:17,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:01:17,125 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263641404] [2019-11-28 00:01:17,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:01:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:01:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:01:17,200 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 00:01:17,200 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 00:01:17,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:01:17 BoogieIcfgContainer [2019-11-28 00:01:17,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 00:01:17,221 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 00:01:17,221 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 00:01:17,221 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 00:01:17,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:01:14" (3/4) ... [2019-11-28 00:01:17,223 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 00:01:17,266 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 00:01:17,266 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 00:01:17,268 INFO L168 Benchmark]: Toolchain (without parser) took 3591.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 961.7 MB in the beginning and 945.1 MB in the end (delta: 16.6 MB). Peak memory consumption was 144.0 MB. Max. memory is 11.5 GB. [2019-11-28 00:01:17,268 INFO L168 Benchmark]: CDTParser took 0.28 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 00:01:17,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.40 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 00:01:17,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 00:01:17,270 INFO L168 Benchmark]: Boogie Preprocessor took 17.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:01:17,271 INFO L168 Benchmark]: RCFGBuilder took 215.02 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-28 00:01:17,272 INFO L168 Benchmark]: TraceAbstraction took 2991.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 945.1 MB in the end (delta: 160.5 MB). Peak memory consumption was 160.5 MB. Max. memory is 11.5 GB. [2019-11-28 00:01:17,272 INFO L168 Benchmark]: Witness Printer took 45.41 ms. Allocated memory is still 1.2 GB. Free memory is still 945.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:01:17,276 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 236.40 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 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 80.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 215.02 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2991.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 945.1 MB in the end (delta: 160.5 MB). Peak memory consumption was 160.5 MB. Max. memory is 11.5 GB. * Witness Printer took 45.41 ms. Allocated memory is still 1.2 GB. Free memory is still 945.1 MB. There was no memory consumed. 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: 2.9s, 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, 0.2s 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, 0.9s 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...