/usr/bin/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/sum01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:03:37,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:03:37,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:03:37,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:03:37,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:03:37,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:03:37,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:03:37,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:03:37,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:03:37,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:03:37,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:03:37,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:03:37,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:03:37,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:03:37,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:03:37,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:03:37,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:03:37,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:03:37,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:03:37,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:03:37,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:03:37,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:03:37,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:03:37,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:03:37,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:03:37,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:03:37,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:03:37,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:03:37,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:03:37,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:03:37,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:03:37,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:03:37,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:03:37,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:03:37,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:03:37,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:03:37,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:03:37,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:03:37,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:03:37,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:03:37,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:03:37,992 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 [2019-11-07 04:03:38,007 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:03:38,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:03:38,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:03:38,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:03:38,009 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:03:38,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:03:38,009 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:03:38,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:03:38,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:03:38,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:03:38,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:03:38,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:03:38,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:03:38,011 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:03:38,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:03:38,011 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:03:38,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:03:38,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:03:38,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:03:38,012 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:03:38,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:03:38,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:03:38,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:03:38,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:03:38,013 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:03:38,013 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:03:38,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:03:38,014 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:03:38,014 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 [2019-11-07 04:03:38,313 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:03:38,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:03:38,331 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:03:38,332 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:03:38,333 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:03:38,333 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum01-1.i [2019-11-07 04:03:38,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4a8b35a2/f025186a32ea424798d035b86b6845de/FLAGee305529c [2019-11-07 04:03:38,827 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:03:38,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum01-1.i [2019-11-07 04:03:38,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4a8b35a2/f025186a32ea424798d035b86b6845de/FLAGee305529c [2019-11-07 04:03:39,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4a8b35a2/f025186a32ea424798d035b86b6845de [2019-11-07 04:03:39,213 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:03:39,215 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:03:39,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:03:39,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:03:39,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:03:39,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:03:39" (1/1) ... [2019-11-07 04:03:39,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@612b7718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:39, skipping insertion in model container [2019-11-07 04:03:39,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:03:39" (1/1) ... [2019-11-07 04:03:39,232 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:03:39,255 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:03:39,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:03:39,500 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:03:39,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:03:39,539 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:03:39,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:39 WrapperNode [2019-11-07 04:03:39,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:03:39,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:03:39,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:03:39,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:03:39,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:39" (1/1) ... [2019-11-07 04:03:39,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:39" (1/1) ... [2019-11-07 04:03:39,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:39" (1/1) ... [2019-11-07 04:03:39,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:39" (1/1) ... [2019-11-07 04:03:39,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:39" (1/1) ... [2019-11-07 04:03:39,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:39" (1/1) ... [2019-11-07 04:03:39,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:39" (1/1) ... [2019-11-07 04:03:39,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:03:39,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:03:39,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:03:39,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:03:39,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:03:39,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:03:39,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:03:39,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 04:03:39,757 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:03:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:03:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 04:03:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-07 04:03:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:03:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:03:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:03:39,971 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:03:39,972 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 04:03:39,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:03:39 BoogieIcfgContainer [2019-11-07 04:03:39,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:03:39,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:03:39,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:03:39,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:03:39,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:03:39" (1/3) ... [2019-11-07 04:03:39,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d309b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:03:39, skipping insertion in model container [2019-11-07 04:03:39,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:39" (2/3) ... [2019-11-07 04:03:39,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d309b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:03:39, skipping insertion in model container [2019-11-07 04:03:39,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:03:39" (3/3) ... [2019-11-07 04:03:39,982 INFO L109 eAbstractionObserver]: Analyzing ICFG sum01-1.i [2019-11-07 04:03:39,995 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:03:40,007 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:03:40,022 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:03:40,075 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:03:40,076 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:03:40,080 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:03:40,080 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:03:40,080 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:03:40,080 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:03:40,081 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:03:40,081 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:03:40,118 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-11-07 04:03:40,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-07 04:03:40,123 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:03:40,124 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:03:40,125 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:03:40,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:03:40,131 INFO L82 PathProgramCache]: Analyzing trace with hash -699336870, now seen corresponding path program 1 times [2019-11-07 04:03:40,139 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:03:40,139 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958616396] [2019-11-07 04:03:40,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:03:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:03:40,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:03:40,348 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958616396] [2019-11-07 04:03:40,349 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:03:40,350 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:03:40,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289412580] [2019-11-07 04:03:40,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:03:40,357 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:03:40,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:03:40,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:03:40,371 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2019-11-07 04:03:40,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:03:40,458 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2019-11-07 04:03:40,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:03:40,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-11-07 04:03:40,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:03:40,470 INFO L225 Difference]: With dead ends: 33 [2019-11-07 04:03:40,471 INFO L226 Difference]: Without dead ends: 12 [2019-11-07 04:03:40,474 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:03:40,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-07 04:03:40,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-07 04:03:40,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-07 04:03:40,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-07 04:03:40,511 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-11-07 04:03:40,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:03:40,512 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-11-07 04:03:40,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:03:40,512 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-07 04:03:40,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-07 04:03:40,513 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:03:40,513 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:03:40,514 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:03:40,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:03:40,514 INFO L82 PathProgramCache]: Analyzing trace with hash -228174086, now seen corresponding path program 1 times [2019-11-07 04:03:40,514 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:03:40,515 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160426066] [2019-11-07 04:03:40,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:03:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:03:40,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:03:40,678 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160426066] [2019-11-07 04:03:40,680 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560288937] [2019-11-07 04:03:40,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:03:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:03:40,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-07 04:03:40,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:03:40,836 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:03:40,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:03:40,875 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:03:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:03:41,075 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1198167377] [2019-11-07 04:03:41,106 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-11-07 04:03:41,106 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:03:41,120 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:03:41,129 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:03:41,129 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:03:41,217 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-11-07 04:03:41,323 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-11-07 04:03:41,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-11-07 04:03:41,330 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 04:03:41,461 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-07 04:03:41,462 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 5] total 19 [2019-11-07 04:03:41,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805832770] [2019-11-07 04:03:41,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-07 04:03:41,465 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:03:41,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-07 04:03:41,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:03:41,469 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 19 states. [2019-11-07 04:03:41,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:03:41,868 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2019-11-07 04:03:41,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 04:03:41,869 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 11 [2019-11-07 04:03:41,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:03:41,870 INFO L225 Difference]: With dead ends: 22 [2019-11-07 04:03:41,870 INFO L226 Difference]: Without dead ends: 15 [2019-11-07 04:03:41,872 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2019-11-07 04:03:41,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-07 04:03:41,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-07 04:03:41,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-07 04:03:41,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-11-07 04:03:41,880 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2019-11-07 04:03:41,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:03:41,882 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-11-07 04:03:41,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-07 04:03:41,883 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-11-07 04:03:41,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-07 04:03:41,883 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:03:41,884 INFO L410 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:03:42,092 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:03:42,093 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:03:42,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:03:42,093 INFO L82 PathProgramCache]: Analyzing trace with hash -528752806, now seen corresponding path program 2 times [2019-11-07 04:03:42,093 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:03:42,094 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402788321] [2019-11-07 04:03:42,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:03:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:03:42,326 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:03:42,326 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402788321] [2019-11-07 04:03:42,327 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146084253] [2019-11-07 04:03:42,327 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:03:42,355 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-07 04:03:42,355 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-07 04:03:42,357 WARN L254 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-07 04:03:42,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:03:42,525 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:03:42,525 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:03:42,895 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-11-07 04:03:43,132 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-11-07 04:03:43,447 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2019-11-07 04:03:43,475 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:03:43,475 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1713447219] [2019-11-07 04:03:43,477 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-11-07 04:03:43,477 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:03:43,477 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:03:43,478 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:03:43,478 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:03:43,494 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-11-07 04:03:43,573 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-11-07 04:03:43,580 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-11-07 04:03:43,582 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 04:03:43,674 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-07 04:03:43,674 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 5] total 28 [2019-11-07 04:03:43,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988423513] [2019-11-07 04:03:43,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-07 04:03:43,676 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:03:43,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-07 04:03:43,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2019-11-07 04:03:43,678 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 28 states. [2019-11-07 04:03:43,981 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 20 [2019-11-07 04:03:44,299 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 40 [2019-11-07 04:03:44,437 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 19 [2019-11-07 04:03:44,702 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 38 [2019-11-07 04:03:44,922 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 34 [2019-11-07 04:03:45,113 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2019-11-07 04:03:45,340 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 33 [2019-11-07 04:03:45,656 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2019-11-07 04:03:45,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:03:45,807 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2019-11-07 04:03:45,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-07 04:03:45,807 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 14 [2019-11-07 04:03:45,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:03:45,809 INFO L225 Difference]: With dead ends: 31 [2019-11-07 04:03:45,809 INFO L226 Difference]: Without dead ends: 21 [2019-11-07 04:03:45,811 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=304, Invalid=1502, Unknown=0, NotChecked=0, Total=1806 [2019-11-07 04:03:45,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-07 04:03:45,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-07 04:03:45,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-07 04:03:45,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-11-07 04:03:45,817 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2019-11-07 04:03:45,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:03:45,818 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2019-11-07 04:03:45,818 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-07 04:03:45,818 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-11-07 04:03:45,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-07 04:03:45,819 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:03:45,819 INFO L410 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:03:46,022 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:03:46,022 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:03:46,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:03:46,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1818934106, now seen corresponding path program 3 times [2019-11-07 04:03:46,023 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:03:46,023 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132270719] [2019-11-07 04:03:46,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:03:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-07 04:03:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-07 04:03:46,112 INFO L172 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-07 04:03:46,112 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-07 04:03:46,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:03:46 BoogieIcfgContainer [2019-11-07 04:03:46,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 04:03:46,143 INFO L168 Benchmark]: Toolchain (without parser) took 6927.99 ms. Allocated memory was 135.8 MB in the beginning and 282.6 MB in the end (delta: 146.8 MB). Free memory was 100.0 MB in the beginning and 162.4 MB in the end (delta: -62.5 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:46,144 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 117.7 MB in the beginning and 117.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 04:03:46,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.78 ms. Allocated memory is still 135.8 MB. Free memory was 99.7 MB in the beginning and 90.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:46,145 INFO L168 Benchmark]: Boogie Preprocessor took 152.18 ms. Allocated memory was 135.8 MB in the beginning and 201.9 MB in the end (delta: 66.1 MB). Free memory was 90.5 MB in the beginning and 180.5 MB in the end (delta: -90.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:46,146 INFO L168 Benchmark]: RCFGBuilder took 279.98 ms. Allocated memory is still 201.9 MB. Free memory was 180.5 MB in the beginning and 167.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:46,147 INFO L168 Benchmark]: TraceAbstraction took 6166.28 ms. Allocated memory was 201.9 MB in the beginning and 282.6 MB in the end (delta: 80.7 MB). Free memory was 167.0 MB in the beginning and 162.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:46,151 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 135.8 MB. Free memory was 117.7 MB in the beginning and 117.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 324.78 ms. Allocated memory is still 135.8 MB. Free memory was 99.7 MB in the beginning and 90.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 152.18 ms. Allocated memory was 135.8 MB in the beginning and 201.9 MB in the end (delta: 66.1 MB). Free memory was 90.5 MB in the beginning and 180.5 MB in the end (delta: -90.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 279.98 ms. Allocated memory is still 201.9 MB. Free memory was 180.5 MB in the beginning and 167.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6166.28 ms. Allocated memory was 201.9 MB in the beginning and 282.6 MB in the end (delta: 80.7 MB). Free memory was 167.0 MB in the beginning and 162.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 85.3 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: [L12] int i, n=__VERIFIER_nondet_uint(), sn=0; [L12] int i, n=__VERIFIER_nondet_uint(), sn=0; [L13] i=1 VAL [i=1, n=0, n=10] [L13] COND TRUE i<=n [L14] COND TRUE i<10 [L15] sn = sn + (2) [L13] i++ VAL [i=2, n=2, n=10] [L13] COND TRUE i<=n [L14] COND TRUE i<10 [L15] sn = sn + (2) [L13] i++ VAL [i=3, n=10, n=4] [L13] COND TRUE i<=n [L14] COND TRUE i<10 [L15] sn = sn + (2) [L13] i++ VAL [i=4, n=6, n=10] [L13] COND TRUE i<=n [L14] COND TRUE i<10 [L15] sn = sn + (2) [L13] i++ VAL [i=5, n=8, n=10] [L13] COND TRUE i<=n [L14] COND TRUE i<10 [L15] sn = sn + (2) [L13] i++ VAL [i=6, n=10, n=10] [L13] COND TRUE i<=n [L14] COND TRUE i<10 [L15] sn = sn + (2) [L13] i++ VAL [i=7, n=12, n=10] [L13] COND TRUE i<=n [L14] COND TRUE i<10 [L15] sn = sn + (2) [L13] i++ VAL [i=8, n=10, n=14] [L13] COND TRUE i<=n [L14] COND TRUE i<10 [L15] sn = sn + (2) [L13] i++ VAL [i=9, n=16, n=10] [L13] COND TRUE i<=n [L14] COND TRUE i<10 [L15] sn = sn + (2) [L13] i++ VAL [i=10, n=10, n=18] [L13] COND TRUE i<=n [L14] COND FALSE !(i<10) [L13] i++ VAL [i=11, n=18, n=10] [L13] COND FALSE !(i<=n) VAL [i=11, n=10, n=18] [L17] CALL __VERIFIER_assert(sn==n*(2) || sn == 0) 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: 6.0s, OverallIterations: 4, TraceHistogramMax: 10, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 52 SDslu, 159 SDs, 0 SdLazy, 213 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 10727 SizeOfPredicates, 8 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 331, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 20, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 20, TOOLS_POST_TIME[ms]: 91, TOOLS_POST_CALL_APPLICATIONS: 10, TOOLS_POST_CALL_TIME[ms]: 9, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 34, TOOLS_QUANTIFIERELIM_TIME[ms]: 89, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 23, FLUID_QUERY_TIME[ms]: 6, FLUID_QUERIES: 78, FLUID_YES_ANSWERS: 2, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME[ms]: 23, DOMAIN_ALPHA_APPLICATIONS: 2, DOMAIN_ALPHA_TIME[ms]: 7, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 29, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 29, DOMAIN_ISBOTTOM_APPLICATIONS: 20, DOMAIN_ISBOTTOM_TIME[ms]: 24, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 142, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 141, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 6, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 6, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 10, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 35, DAG_COMPRESSION_PROCESSED_NODES: 116, DAG_COMPRESSION_RETAINED_NODES: 86, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...