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 0.1.24-13a467a-m [2019-10-15 03:01:07,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:01:07,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:01:07,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:01:07,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:01:07,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:01:07,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:01:07,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:01:07,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:01:07,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:01:07,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:01:07,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:01:07,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:01:07,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:01:07,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:01:07,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:01:07,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:01:07,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:01:07,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:01:07,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:01:07,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:01:07,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:01:07,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:01:07,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:01:07,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:01:07,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:01:07,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:01:07,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:01:07,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:01:07,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:01:07,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:01:07,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:01:07,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:01:07,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:01:07,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:01:07,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:01:07,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:01:07,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:01:07,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:01:07,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:01:07,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:01:07,590 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 [2019-10-15 03:01:07,616 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:01:07,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:01:07,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:01:07,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:01:07,621 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:01:07,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:01:07,621 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:01:07,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:01:07,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:01:07,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:01:07,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:01:07,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:01:07,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:01:07,623 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:01:07,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:01:07,623 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:01:07,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:01:07,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:01:07,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:01:07,624 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:01:07,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:01:07,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:01:07,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:01:07,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:01:07,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:01:07,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:01:07,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:01:07,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:01:07,627 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 [2019-10-15 03:01:07,941 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:01:07,955 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:01:07,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:01:07,960 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:01:07,961 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:01:07,961 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2019-10-15 03:01:08,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/152e6f56e/f030b825fa434e23b254586c00d2e82e/FLAG6d56484cd [2019-10-15 03:01:08,515 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:01:08,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2019-10-15 03:01:08,522 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/152e6f56e/f030b825fa434e23b254586c00d2e82e/FLAG6d56484cd [2019-10-15 03:01:08,900 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/152e6f56e/f030b825fa434e23b254586c00d2e82e [2019-10-15 03:01:08,914 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:01:08,915 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:01:08,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:01:08,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:01:08,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:01:08,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:01:08" (1/1) ... [2019-10-15 03:01:08,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76f51de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:08, skipping insertion in model container [2019-10-15 03:01:08,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:01:08" (1/1) ... [2019-10-15 03:01:08,933 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:01:08,952 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:01:09,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:01:09,154 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:01:09,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:01:09,181 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:01:09,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:09 WrapperNode [2019-10-15 03:01:09,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:01:09,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:01:09,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:01:09,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:01:09,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:09" (1/1) ... [2019-10-15 03:01:09,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:09" (1/1) ... [2019-10-15 03:01:09,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:09" (1/1) ... [2019-10-15 03:01:09,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:09" (1/1) ... [2019-10-15 03:01:09,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:09" (1/1) ... [2019-10-15 03:01:09,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:09" (1/1) ... [2019-10-15 03:01:09,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:09" (1/1) ... [2019-10-15 03:01:09,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:01:09,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:01:09,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:01:09,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:01:09,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:09" (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 [2019-10-15 03:01:09,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:01:09,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:01:09,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 03:01:09,347 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:01:09,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:01:09,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 03:01:09,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 03:01:09,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:01:09,348 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:01:09,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:01:09,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:01:11,078 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:01:11,079 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 03:01:11,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:01:11 BoogieIcfgContainer [2019-10-15 03:01:11,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:01:11,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:01:11,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:01:11,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:01:11,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:01:08" (1/3) ... [2019-10-15 03:01:11,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1ff0e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:01:11, skipping insertion in model container [2019-10-15 03:01:11,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:01:09" (2/3) ... [2019-10-15 03:01:11,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1ff0e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:01:11, skipping insertion in model container [2019-10-15 03:01:11,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:01:11" (3/3) ... [2019-10-15 03:01:11,092 INFO L109 eAbstractionObserver]: Analyzing ICFG phases_2-1.c [2019-10-15 03:01:11,100 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:01:11,107 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:01:11,115 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:01:11,140 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:01:11,140 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:01:11,140 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:01:11,140 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:01:11,141 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:01:11,141 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:01:11,141 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:01:11,141 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:01:11,157 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-10-15 03:01:11,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 03:01:11,162 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:01:11,162 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:01:11,164 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:01:11,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:01:11,168 INFO L82 PathProgramCache]: Analyzing trace with hash -114224221, now seen corresponding path program 1 times [2019-10-15 03:01:11,176 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:01:11,176 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248163150] [2019-10-15 03:01:11,177 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:01:11,177 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:01:11,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:01:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-15 03:01:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-15 03:01:11,298 INFO L168 tionRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-10-15 03:01:11,299 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-15 03:01:11,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:01:11 BoogieIcfgContainer [2019-10-15 03:01:11,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:01:11,324 INFO L168 Benchmark]: Toolchain (without parser) took 2406.83 ms. Allocated memory was 136.8 MB in the beginning and 199.2 MB in the end (delta: 62.4 MB). Free memory was 100.5 MB in the beginning and 151.8 MB in the end (delta: -51.2 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:11,325 INFO L168 Benchmark]: CDTParser took 1.31 ms. Allocated memory is still 136.8 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-15 03:01:11,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.84 ms. Allocated memory is still 136.8 MB. Free memory was 100.3 MB in the beginning and 91.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:11,327 INFO L168 Benchmark]: Boogie Preprocessor took 105.46 ms. Allocated memory was 136.8 MB in the beginning and 199.2 MB in the end (delta: 62.4 MB). Free memory was 91.1 MB in the beginning and 177.5 MB in the end (delta: -86.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:11,328 INFO L168 Benchmark]: RCFGBuilder took 1792.13 ms. Allocated memory is still 199.2 MB. Free memory was 177.5 MB in the beginning and 164.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:11,329 INFO L168 Benchmark]: TraceAbstraction took 234.30 ms. Allocated memory is still 199.2 MB. Free memory was 164.0 MB in the beginning and 151.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:11,333 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.31 ms. Allocated memory is still 136.8 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 265.84 ms. Allocated memory is still 136.8 MB. Free memory was 100.3 MB in the beginning and 91.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.46 ms. Allocated memory was 136.8 MB in the beginning and 199.2 MB in the end (delta: 62.4 MB). Free memory was 91.1 MB in the beginning and 177.5 MB in the end (delta: -86.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1792.13 ms. Allocated memory is still 199.2 MB. Free memory was 177.5 MB in the beginning and 164.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234.30 ms. Allocated memory is still 199.2 MB. Free memory was 164.0 MB in the beginning and 151.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 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...