java -ea -Xmx8000000000 -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 ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector-Const.epf -i ../../../trunk/examples/svcomp/ldv-regression/test06_false-unreach-call_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 18:14:01,735 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 18:14:01,737 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 18:14:01,749 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 18:14:01,750 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 18:14:01,751 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 18:14:01,752 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 18:14:01,754 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 18:14:01,757 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 18:14:01,758 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 18:14:01,759 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 18:14:01,760 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 18:14:01,761 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 18:14:01,762 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 18:14:01,763 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 18:14:01,764 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 18:14:01,765 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 18:14:01,767 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 18:14:01,769 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 18:14:01,771 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 18:14:01,772 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 18:14:01,774 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 18:14:01,777 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-14 18:14:01,777 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-14 18:14:01,777 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-14 18:14:01,778 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-14 18:14:01,779 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-14 18:14:01,780 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-14 18:14:01,781 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-14 18:14:01,783 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-14 18:14:01,783 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-14 18:14:01,784 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-14 18:14:01,784 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-14 18:14:01,784 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-14 18:14:01,785 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-14 18:14:01,786 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-14 18:14:01,787 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector-Const.epf [2018-11-14 18:14:01,803 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 18:14:01,804 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 18:14:01,805 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 18:14:01,805 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 18:14:01,806 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 18:14:01,806 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 18:14:01,806 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 18:14:01,806 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 18:14:01,807 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 18:14:01,807 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 18:14:01,807 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 18:14:01,807 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 18:14:01,808 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 18:14:01,808 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 18:14:01,808 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-14 18:14:01,808 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-14 18:14:01,809 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 18:14:01,809 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 18:14:01,809 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-14 18:14:01,809 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 18:14:01,810 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 18:14:01,810 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 18:14:01,810 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 18:14:01,810 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 18:14:01,811 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 18:14:01,811 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 18:14:01,811 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 18:14:01,811 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 18:14:01,812 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-14 18:14:01,812 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 18:14:01,812 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-14 18:14:01,812 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-14 18:14:01,813 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 18:14:01,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 18:14:01,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 18:14:01,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 18:14:01,880 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 18:14:01,880 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 18:14:01,881 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test06_false-unreach-call_true-termination.c [2018-11-14 18:14:01,943 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44f23ddee/a252d37ea35e4418a218fc0de8f1c939/FLAG3a0fcb095 [2018-11-14 18:14:02,422 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 18:14:02,423 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test06_false-unreach-call_true-termination.c [2018-11-14 18:14:02,430 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44f23ddee/a252d37ea35e4418a218fc0de8f1c939/FLAG3a0fcb095 [2018-11-14 18:14:02,448 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44f23ddee/a252d37ea35e4418a218fc0de8f1c939 [2018-11-14 18:14:02,462 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 18:14:02,464 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 18:14:02,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 18:14:02,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 18:14:02,470 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 18:14:02,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 06:14:02" (1/1) ... [2018-11-14 18:14:02,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a05e19e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:02, skipping insertion in model container [2018-11-14 18:14:02,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 06:14:02" (1/1) ... [2018-11-14 18:14:02,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 18:14:02,515 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 18:14:02,714 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 18:14:02,734 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 18:14:02,761 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 18:14:02,786 INFO L195 MainTranslator]: Completed translation [2018-11-14 18:14:02,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:02 WrapperNode [2018-11-14 18:14:02,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 18:14:02,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 18:14:02,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 18:14:02,788 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 18:14:02,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:02" (1/1) ... [2018-11-14 18:14:02,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:02" (1/1) ... [2018-11-14 18:14:02,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:02" (1/1) ... [2018-11-14 18:14:02,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:02" (1/1) ... [2018-11-14 18:14:02,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:02" (1/1) ... [2018-11-14 18:14:02,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:02" (1/1) ... [2018-11-14 18:14:02,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:02" (1/1) ... [2018-11-14 18:14:02,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 18:14:02,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 18:14:02,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 18:14:02,834 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 18:14:02,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:02" (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 [2018-11-14 18:14:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 18:14:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 18:14:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2018-11-14 18:14:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-14 18:14:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 18:14:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 18:14:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure g [2018-11-14 18:14:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-14 18:14:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-14 18:14:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-14 18:14:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-14 18:14:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 18:14:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-14 18:14:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-14 18:14:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-14 18:14:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 18:14:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 18:14:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-14 18:14:03,644 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 18:14:03,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 06:14:03 BoogieIcfgContainer [2018-11-14 18:14:03,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 18:14:03,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 18:14:03,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 18:14:03,650 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 18:14:03,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 06:14:02" (1/3) ... [2018-11-14 18:14:03,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272d7cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 06:14:03, skipping insertion in model container [2018-11-14 18:14:03,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:02" (2/3) ... [2018-11-14 18:14:03,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272d7cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 06:14:03, skipping insertion in model container [2018-11-14 18:14:03,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 06:14:03" (3/3) ... [2018-11-14 18:14:03,654 INFO L112 eAbstractionObserver]: Analyzing ICFG test06_false-unreach-call_true-termination.c [2018-11-14 18:14:03,664 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 18:14:03,672 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 18:14:03,687 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 18:14:03,722 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 18:14:03,723 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 18:14:03,723 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 18:14:03,723 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 18:14:03,724 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 18:14:03,724 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 18:14:03,724 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 18:14:03,724 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 18:14:03,724 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 18:14:03,744 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-14 18:14:03,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-14 18:14:03,751 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 18:14:03,752 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 18:14:03,755 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 18:14:03,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 18:14:03,762 INFO L82 PathProgramCache]: Analyzing trace with hash -826874046, now seen corresponding path program 1 times [2018-11-14 18:14:03,767 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-14 18:14:03,768 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-14 18:14:03,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 18:14:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 18:14:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 18:14:03,892 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-14 18:14:04,381 INFO L256 TraceCheckUtils]: 0: Hoare triple {27#true} call ULTIMATE.init(); {27#true} is VALID [2018-11-14 18:14:04,384 INFO L273 TraceCheckUtils]: 1: Hoare triple {27#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {27#true} is VALID [2018-11-14 18:14:04,385 INFO L273 TraceCheckUtils]: 2: Hoare triple {27#true} assume true; {27#true} is VALID [2018-11-14 18:14:04,385 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {27#true} {27#true} #31#return; {27#true} is VALID [2018-11-14 18:14:04,385 INFO L256 TraceCheckUtils]: 4: Hoare triple {27#true} call #t~ret8 := main(); {27#true} is VALID [2018-11-14 18:14:04,389 INFO L273 TraceCheckUtils]: 5: Hoare triple {27#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(4bv32);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(4bv32);call ~#p1~0.base, ~#p1~0.offset := #Ultimate.alloc(4bv32);call ~#p2~0.base, ~#p2~0.offset := #Ultimate.alloc(4bv32);call write~$Pointer$(~#a~0.base, ~#a~0.offset, ~#p1~0.base, ~#p1~0.offset, 4bv32);call write~$Pointer$(~#b~0.base, ~#b~0.offset, ~#p2~0.base, ~#p2~0.offset, 4bv32);call write~intINTTYPE4(1bv32, ~#b~0.base, ~#b~0.offset, 4bv32);call write~intINTTYPE4(5bv32, ~#a~0.base, ~#a~0.offset, 4bv32);call #t~mem2 := read~intINTTYPE4(~#a~0.base, ~#a~0.offset, 4bv32);#t~post3 := #t~mem2;call write~intINTTYPE4(~bvsub32(#t~post3, 1bv32), ~#a~0.base, ~#a~0.offset, 4bv32);havoc #t~post3;havoc #t~mem2;call #t~mem4 := read~intINTTYPE4(~#a~0.base, ~#a~0.offset, 4bv32); {47#(= (_ bv4 32) |main_#t~mem4|)} is VALID [2018-11-14 18:14:04,390 INFO L256 TraceCheckUtils]: 6: Hoare triple {47#(= (_ bv4 32) |main_#t~mem4|)} call #t~ret5 := f(#t~mem4, ~#p1~0.base, ~#p1~0.offset, ~#p2~0.base, ~#p2~0.offset); {27#true} is VALID [2018-11-14 18:14:04,391 INFO L273 TraceCheckUtils]: 7: Hoare triple {27#true} ~a := #in~a;~p1.base, ~p1.offset := #in~p1.base, #in~p1.offset;~p2.base, ~p2.offset := #in~p2.base, #in~p2.offset; {54#(= |f_#in~a| f_~a)} is VALID [2018-11-14 18:14:04,391 INFO L273 TraceCheckUtils]: 8: Hoare triple {54#(= |f_#in~a| f_~a)} assume !(~a == 4bv32);#res := 0bv32; {58#(not (= (bvadd |f_#in~a| (_ bv4294967292 32)) (_ bv0 32)))} is VALID [2018-11-14 18:14:04,392 INFO L273 TraceCheckUtils]: 9: Hoare triple {58#(not (= (bvadd |f_#in~a| (_ bv4294967292 32)) (_ bv0 32)))} assume true; {58#(not (= (bvadd |f_#in~a| (_ bv4294967292 32)) (_ bv0 32)))} is VALID [2018-11-14 18:14:04,396 INFO L268 TraceCheckUtils]: 10: Hoare quadruple {58#(not (= (bvadd |f_#in~a| (_ bv4294967292 32)) (_ bv0 32)))} {47#(= (_ bv4 32) |main_#t~mem4|)} #29#return; {28#false} is VALID [2018-11-14 18:14:04,396 INFO L273 TraceCheckUtils]: 11: Hoare triple {28#false} call write~intINTTYPE4(#t~ret5, ~#a~0.base, ~#a~0.offset, 4bv32);havoc #t~mem4;havoc #t~ret5;call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~#p1~0.base, ~#p1~0.offset, 4bv32);call #t~mem7 := read~intINTTYPE4(#t~mem6.base, #t~mem6.offset, 4bv32); {28#false} is VALID [2018-11-14 18:14:04,397 INFO L273 TraceCheckUtils]: 12: Hoare triple {28#false} assume #t~mem7 == 0bv32;havoc #t~mem7;havoc #t~mem6.base, #t~mem6.offset; {28#false} is VALID [2018-11-14 18:14:04,397 INFO L273 TraceCheckUtils]: 13: Hoare triple {28#false} assume !false; {28#false} is VALID [2018-11-14 18:14:04,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-14 18:14:04,400 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-14 18:14:04,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 18:14:04,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-14 18:14:04,412 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-14 18:14:04,419 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 18:14:04,423 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-14 18:14:04,497 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 18:14:04,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-14 18:14:04,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-14 18:14:04,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-14 18:14:04,511 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2018-11-14 18:14:05,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 18:14:05,168 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-11-14 18:14:05,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-14 18:14:05,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-14 18:14:05,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 18:14:05,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-14 18:14:05,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2018-11-14 18:14:05,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-14 18:14:05,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2018-11-14 18:14:05,191 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 35 transitions. [2018-11-14 18:14:05,489 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 18:14:05,502 INFO L225 Difference]: With dead ends: 34 [2018-11-14 18:14:05,502 INFO L226 Difference]: Without dead ends: 20 [2018-11-14 18:14:05,506 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-14 18:14:05,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-14 18:14:05,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-14 18:14:05,653 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 18:14:05,653 INFO L82 GeneralOperation]: Start isEquivalent. First operand 20 states. Second operand 20 states. [2018-11-14 18:14:05,654 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 20 states. [2018-11-14 18:14:05,654 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 20 states. [2018-11-14 18:14:05,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 18:14:05,658 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2018-11-14 18:14:05,658 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2018-11-14 18:14:05,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 18:14:05,659 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 18:14:05,660 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 20 states. [2018-11-14 18:14:05,660 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 20 states. [2018-11-14 18:14:05,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 18:14:05,664 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2018-11-14 18:14:05,664 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2018-11-14 18:14:05,664 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 18:14:05,665 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 18:14:05,665 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 18:14:05,665 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 18:14:05,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-14 18:14:05,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2018-11-14 18:14:05,670 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 14 [2018-11-14 18:14:05,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 18:14:05,670 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2018-11-14 18:14:05,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-14 18:14:05,671 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2018-11-14 18:14:05,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-14 18:14:05,672 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 18:14:05,672 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 18:14:05,672 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 18:14:05,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 18:14:05,673 INFO L82 PathProgramCache]: Analyzing trace with hash -105789816, now seen corresponding path program 1 times [2018-11-14 18:14:05,673 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-14 18:14:05,674 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-14 18:14:05,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 18:14:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-14 18:14:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-14 18:14:05,845 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-14 18:14:05,914 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2018-11-14 18:14:05,915 WARN L170 areAnnotationChecker]: fENTRY has no Hoare annotation [2018-11-14 18:14:05,915 WARN L170 areAnnotationChecker]: gENTRY has no Hoare annotation [2018-11-14 18:14:05,915 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-14 18:14:05,915 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-14 18:14:05,915 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2018-11-14 18:14:05,916 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 18:14:05,916 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2018-11-14 18:14:05,916 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2018-11-14 18:14:05,916 WARN L170 areAnnotationChecker]: gFINAL has no Hoare annotation [2018-11-14 18:14:05,916 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-14 18:14:05,917 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-14 18:14:05,917 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2018-11-14 18:14:05,917 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2018-11-14 18:14:05,917 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 18:14:05,917 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2018-11-14 18:14:05,917 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2018-11-14 18:14:05,918 WARN L170 areAnnotationChecker]: fFINAL has no Hoare annotation [2018-11-14 18:14:05,918 WARN L170 areAnnotationChecker]: gEXIT has no Hoare annotation [2018-11-14 18:14:05,918 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 18:14:05,918 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation [2018-11-14 18:14:05,918 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2018-11-14 18:14:05,918 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2018-11-14 18:14:05,919 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2018-11-14 18:14:05,919 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2018-11-14 18:14:05,919 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2018-11-14 18:14:05,919 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2018-11-14 18:14:05,919 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 18:14:05,919 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-14 18:14:05,920 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-14 18:14:05,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 06:14:05 BoogieIcfgContainer [2018-11-14 18:14:05,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-14 18:14:05,924 INFO L168 Benchmark]: Toolchain (without parser) took 3461.08 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -654.1 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2018-11-14 18:14:05,926 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-14 18:14:05,927 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-14 18:14:05,928 INFO L168 Benchmark]: Boogie Preprocessor took 45.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-14 18:14:05,928 INFO L168 Benchmark]: RCFGBuilder took 811.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -767.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-11-14 18:14:05,930 INFO L168 Benchmark]: TraceAbstraction took 2276.61 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 102.5 MB). Peak memory consumption was 102.5 MB. Max. memory is 7.1 GB. [2018-11-14 18:14:05,934 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 321.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 811.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -767.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2276.61 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 102.5 MB). Peak memory consumption was 102.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 40]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L21] FCALL int a, b; [L22] FCALL int *p1, *p2; [L24] FCALL p1 = &a [L25] FCALL p2 = &b [L27] FCALL b = 1 [L28] FCALL a = 5 [L30] EXPR, FCALL \read(a) [L30] a-- [L32] EXPR, FCALL \read(a) VAL [\read(a)=4, a={5:0}, b={8:0}, p1={7:0}, p2={6:0}] [L32] CALL, EXPR f(a, &p1, &p2) VAL [\old(a)=4, p1={7:0}, p2={6:0}] [L12] COND TRUE a == 4 VAL [\old(a)=4, a=4, p1={7:0}, p1={7:0}, p2={6:0}, p2={6:0}] [L13] CALL g(p1, p2) VAL [p1={7:0}, p2={6:0}] [L5] EXPR, FCALL \read(**p2) [L5] int *pq = *p2; [L7] EXPR, FCALL \read(**p2) [L7] FCALL *p1 = *p2 [L8] RET, FCALL *pq = 0 VAL [p1={7:0}, p1={7:0}, p2={6:0}, p2={6:0}, pq={8:0}] [L13] g(p1, p2) VAL [\old(a)=4, a=4, p1={7:0}, p1={7:0}, p2={6:0}, p2={6:0}] [L14] RET return 1; VAL [\old(a)=4, \result=1, a=4, p1={7:0}, p1={7:0}, p2={6:0}, p2={6:0}] [L32] EXPR f(a, &p1, &p2) VAL [\read(a)=4, a={5:0}, b={8:0}, f(a, &p1, &p2)=1, p1={7:0}, p2={6:0}] [L32] FCALL a = f(a, &p1, &p2) [L34] EXPR, FCALL \read(*p1) VAL [\read(*p1)={8:0}, \read(*p1)=0, a={5:0}, b={8:0}, p1={7:0}, p2={6:0}] [L34] COND TRUE *p1 == 0 [L40] __VERIFIER_error() VAL [a={5:0}, b={8:0}, p1={7:0}, p2={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. UNSAFE Result, 2.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 5 SDslu, 53 SDs, 0 SdLazy, 13 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 351 SizeOfPredicates, 6 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...