java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loops/count_up_down-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:43:50,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:43:50,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:43:50,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:43:50,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:43:50,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:43:50,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:43:50,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:43:50,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:43:50,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:43:50,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:43:50,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:43:50,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:43:50,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:43:50,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:43:50,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:43:50,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:43:50,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:43:50,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:43:50,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:43:50,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:43:50,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:43:50,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:43:50,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:43:50,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:43:50,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:43:50,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:43:50,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:43:50,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:43:50,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:43:50,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:43:50,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:43:50,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:43:50,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:43:50,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:43:50,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:43:50,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:43:50,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:43:50,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:43:50,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:43:50,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:43:50,910 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 13:43:50,931 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:43:50,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:43:50,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:43:50,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:43:50,933 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:43:50,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:43:50,933 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:43:50,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:43:50,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:43:50,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:43:50,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:43:50,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:43:50,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:43:50,936 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:43:50,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:43:50,936 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:43:50,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:43:50,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:43:50,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:43:50,937 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:43:50,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:43:50,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:43:50,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:43:50,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:43:50,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:43:50,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:43:50,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:43:50,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:43:50,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 13:43:51,193 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:43:51,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:43:51,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:43:51,211 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:43:51,211 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:43:51,212 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/count_up_down-2.c [2019-10-07 13:43:51,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f188a6eb/f18ea8ce83be4a99a31b143677b6b146/FLAG07413fbc1 [2019-10-07 13:43:51,715 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:43:51,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/count_up_down-2.c [2019-10-07 13:43:51,721 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f188a6eb/f18ea8ce83be4a99a31b143677b6b146/FLAG07413fbc1 [2019-10-07 13:43:52,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f188a6eb/f18ea8ce83be4a99a31b143677b6b146 [2019-10-07 13:43:52,095 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:43:52,096 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:43:52,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:43:52,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:43:52,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:43:52,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:43:52" (1/1) ... [2019-10-07 13:43:52,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4975dbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:52, skipping insertion in model container [2019-10-07 13:43:52,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:43:52" (1/1) ... [2019-10-07 13:43:52,112 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:43:52,130 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:43:52,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:43:52,334 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:43:52,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:43:52,364 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:43:52,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:52 WrapperNode [2019-10-07 13:43:52,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:43:52,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:43:52,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:43:52,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:43:52,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:52" (1/1) ... [2019-10-07 13:43:52,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:52" (1/1) ... [2019-10-07 13:43:52,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:52" (1/1) ... [2019-10-07 13:43:52,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:52" (1/1) ... [2019-10-07 13:43:52,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:52" (1/1) ... [2019-10-07 13:43:52,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:52" (1/1) ... [2019-10-07 13:43:52,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:52" (1/1) ... [2019-10-07 13:43:52,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:43:52,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:43:52,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:43:52,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:43:52,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:52" (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 [2019-10-07 13:43:52,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:43:52,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:43:52,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:43:52,532 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:43:52,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:43:52,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:43:52,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 13:43:52,533 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:43:52,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:43:52,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:43:52,712 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:43:52,712 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 13:43:52,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:43:52 BoogieIcfgContainer [2019-10-07 13:43:52,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:43:52,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:43:52,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:43:52,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:43:52,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:43:52" (1/3) ... [2019-10-07 13:43:52,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2d3e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:43:52, skipping insertion in model container [2019-10-07 13:43:52,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:52" (2/3) ... [2019-10-07 13:43:52,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2d3e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:43:52, skipping insertion in model container [2019-10-07 13:43:52,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:43:52" (3/3) ... [2019-10-07 13:43:52,722 INFO L109 eAbstractionObserver]: Analyzing ICFG count_up_down-2.c [2019-10-07 13:43:52,729 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:43:52,735 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:43:52,744 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:43:52,769 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:43:52,769 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:43:52,769 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:43:52,769 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:43:52,769 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:43:52,770 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:43:52,770 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:43:52,770 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:43:52,788 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-07 13:43:52,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-07 13:43:52,794 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:43:52,795 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:43:52,797 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:43:52,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:43:52,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1869232855, now seen corresponding path program 1 times [2019-10-07 13:43:52,810 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:43:52,810 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:43:52,810 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:43:52,811 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:43:52,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:43:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-07 13:43:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-07 13:43:52,925 INFO L161 tionRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-10-07 13:43:52,926 INFO L451 BasicCegarLoop]: Counterexample might be feasible [2019-10-07 13:43:52,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:43:52 BoogieIcfgContainer [2019-10-07 13:43:52,946 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:43:52,949 INFO L168 Benchmark]: Toolchain (without parser) took 851.21 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 102.7 MB in the beginning and 157.2 MB in the end (delta: -54.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:52,950 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 13:43:52,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.87 ms. Allocated memory is still 138.4 MB. Free memory was 102.4 MB in the beginning and 93.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:52,952 INFO L168 Benchmark]: Boogie Preprocessor took 111.33 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 93.3 MB in the beginning and 181.5 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:52,953 INFO L168 Benchmark]: RCFGBuilder took 236.92 ms. Allocated memory is still 202.4 MB. Free memory was 180.8 MB in the beginning and 170.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:52,954 INFO L168 Benchmark]: TraceAbstraction took 230.80 ms. Allocated memory is still 202.4 MB. Free memory was 170.2 MB in the beginning and 157.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:52,959 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 267.87 ms. Allocated memory is still 138.4 MB. Free memory was 102.4 MB in the beginning and 93.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.33 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 93.3 MB in the beginning and 181.5 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 236.92 ms. Allocated memory is still 202.4 MB. Free memory was 180.8 MB in the beginning and 170.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230.80 ms. Allocated memory is still 202.4 MB. Free memory was 170.2 MB in the beginning and 157.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 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: [L13] unsigned int n = __VERIFIER_nondet_uint(); [L14] unsigned int x=n, y=0; VAL [n=0, x=0, y=0] [L15] COND FALSE !(x>0) VAL [n=0, x=0, y=0] [L20] CALL __VERIFIER_assert(y!=n) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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...