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/loop-acceleration/phases_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:30:10,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:30:10,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:30:10,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:30:10,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:30:10,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:30:10,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:30:10,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:30:11,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:30:11,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:30:11,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:30:11,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:30:11,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:30:11,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:30:11,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:30:11,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:30:11,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:30:11,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:30:11,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:30:11,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:30:11,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:30:11,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:30:11,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:30:11,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:30:11,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:30:11,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:30:11,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:30:11,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:30:11,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:30:11,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:30:11,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:30:11,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:30:11,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:30:11,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:30:11,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:30:11,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:30:11,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:30:11,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:30:11,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:30:11,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:30:11,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:30:11,037 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 13:30:11,061 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:30:11,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:30:11,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:30:11,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:30:11,064 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:30:11,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:30:11,065 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:30:11,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:30:11,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:30:11,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:30:11,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:30:11,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:30:11,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:30:11,068 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:30:11,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:30:11,068 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:30:11,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:30:11,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:30:11,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:30:11,069 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:30:11,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:30:11,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:30:11,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:30:11,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:30:11,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:30:11,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:30:11,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:30:11,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:30:11,071 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 13:30:11,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:30:11,337 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:30:11,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:30:11,341 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:30:11,342 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:30:11,342 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2019-10-07 13:30:11,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8510955db/7f2b31a7548044bcb2eee540f8e50772/FLAGf60d26421 [2019-10-07 13:30:11,855 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:30:11,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2019-10-07 13:30:11,862 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8510955db/7f2b31a7548044bcb2eee540f8e50772/FLAGf60d26421 [2019-10-07 13:30:12,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8510955db/7f2b31a7548044bcb2eee540f8e50772 [2019-10-07 13:30:12,284 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:30:12,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:30:12,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:30:12,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:30:12,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:30:12,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:30:12" (1/1) ... [2019-10-07 13:30:12,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac258e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:12, skipping insertion in model container [2019-10-07 13:30:12,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:30:12" (1/1) ... [2019-10-07 13:30:12,298 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:30:12,312 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:30:12,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:30:12,505 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:30:12,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:30:12,533 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:30:12,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:12 WrapperNode [2019-10-07 13:30:12,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:30:12,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:30:12,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:30:12,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:30:12,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:12" (1/1) ... [2019-10-07 13:30:12,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:12" (1/1) ... [2019-10-07 13:30:12,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:12" (1/1) ... [2019-10-07 13:30:12,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:12" (1/1) ... [2019-10-07 13:30:12,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:12" (1/1) ... [2019-10-07 13:30:12,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:12" (1/1) ... [2019-10-07 13:30:12,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:12" (1/1) ... [2019-10-07 13:30:12,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:30:12,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:30:12,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:30:12,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:30:12,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:12" (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 13:30:12,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:30:12,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:30:12,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:30:12,694 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:30:12,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:30:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 13:30:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 13:30:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:30:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:30:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:30:12,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:30:14,249 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:30:14,250 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 13:30:14,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:30:14 BoogieIcfgContainer [2019-10-07 13:30:14,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:30:14,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:30:14,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:30:14,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:30:14,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:30:12" (1/3) ... [2019-10-07 13:30:14,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b00904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:30:14, skipping insertion in model container [2019-10-07 13:30:14,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:12" (2/3) ... [2019-10-07 13:30:14,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b00904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:30:14, skipping insertion in model container [2019-10-07 13:30:14,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:30:14" (3/3) ... [2019-10-07 13:30:14,266 INFO L109 eAbstractionObserver]: Analyzing ICFG phases_2-1.c [2019-10-07 13:30:14,273 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:30:14,281 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:30:14,292 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:30:14,318 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:30:14,319 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:30:14,319 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:30:14,319 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:30:14,319 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:30:14,320 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:30:14,320 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:30:14,320 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:30:14,342 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-10-07 13:30:14,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-07 13:30:14,346 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:30:14,347 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:30:14,349 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:30:14,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:30:14,354 INFO L82 PathProgramCache]: Analyzing trace with hash -114224221, now seen corresponding path program 1 times [2019-10-07 13:30:14,361 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:30:14,361 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:30:14,361 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:30:14,361 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:30:14,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:30:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-07 13:30:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-07 13:30:14,473 INFO L161 tionRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-10-07 13:30:14,473 INFO L451 BasicCegarLoop]: Counterexample might be feasible [2019-10-07 13:30:14,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:30:14 BoogieIcfgContainer [2019-10-07 13:30:14,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:30:14,500 INFO L168 Benchmark]: Toolchain (without parser) took 2213.54 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 155.0 MB in the end (delta: -52.6 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-10-07 13:30:14,501 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 13:30:14,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.83 ms. Allocated memory is still 138.9 MB. Free memory was 102.3 MB in the beginning and 93.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-07 13:30:14,504 INFO L168 Benchmark]: Boogie Preprocessor took 108.66 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 93.0 MB in the beginning and 181.2 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-10-07 13:30:14,505 INFO L168 Benchmark]: RCFGBuilder took 1614.79 ms. Allocated memory is still 202.9 MB. Free memory was 181.2 MB in the beginning and 167.5 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-07 13:30:14,506 INFO L168 Benchmark]: TraceAbstraction took 237.44 ms. Allocated memory is still 202.9 MB. Free memory was 167.5 MB in the beginning and 155.0 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2019-10-07 13:30:14,510 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 248.83 ms. Allocated memory is still 138.9 MB. Free memory was 102.3 MB in the beginning and 93.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.66 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 93.0 MB in the beginning and 181.2 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1614.79 ms. Allocated memory is still 202.9 MB. Free memory was 181.2 MB in the beginning and 167.5 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 237.44 ms. Allocated memory is still 202.9 MB. Free memory was 167.5 MB in the beginning and 155.0 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] unsigned int x = 1; [L14] unsigned int y = __VERIFIER_nondet_uint(); [L16] COND FALSE !(!(y > 0)) VAL [x=1, y=1] [L18] COND FALSE !(x < y) VAL [x=1, y=1] [L26] CALL __VERIFIER_assert(x != y) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 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=18occurred 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, 11 NumberOfCodeBlocks, 11 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...