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/array-examples/sorting_selectionsort_2_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-06 23:19:47,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-06 23:19:47,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-06 23:19:47,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-06 23:19:47,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-06 23:19:47,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-06 23:19:47,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-06 23:19:47,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-06 23:19:47,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-06 23:19:47,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-06 23:19:47,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-06 23:19:47,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-06 23:19:47,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-06 23:19:47,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-06 23:19:47,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-06 23:19:47,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-06 23:19:47,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-06 23:19:47,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-06 23:19:47,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-06 23:19:47,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-06 23:19:47,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-06 23:19:47,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-06 23:19:47,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-06 23:19:47,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-06 23:19:47,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-06 23:19:47,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-06 23:19:47,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-06 23:19:47,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-06 23:19:47,939 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 [2019-10-06 23:19:47,958 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-06 23:19:47,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-06 23:19:47,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-06 23:19:47,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-06 23:19:47,960 INFO L138 SettingsManager]: * Use SBE=true [2019-10-06 23:19:47,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-06 23:19:47,961 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-06 23:19:47,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-06 23:19:47,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-06 23:19:47,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-06 23:19:47,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-06 23:19:47,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-06 23:19:47,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-06 23:19:47,962 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-06 23:19:47,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-06 23:19:47,962 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-06 23:19:47,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-06 23:19:47,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-06 23:19:47,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-06 23:19:47,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-06 23:19:47,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-06 23:19:47,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-06 23:19:47,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-06 23:19:47,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-06 23:19:47,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-06 23:19:47,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-06 23:19:47,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-06 23:19:47,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-06 23:19:47,965 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 [2019-10-06 23:19:48,266 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-06 23:19:48,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-06 23:19:48,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-06 23:19:48,287 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-06 23:19:48,287 INFO L275 PluginConnector]: CDTParser initialized [2019-10-06 23:19:48,288 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sorting_selectionsort_2_ground.i [2019-10-06 23:19:48,349 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19995f354/5f0c4b8ffe7e437297113695339742dd/FLAG253e1d386 [2019-10-06 23:19:48,806 INFO L306 CDTParser]: Found 1 translation units. [2019-10-06 23:19:48,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sorting_selectionsort_2_ground.i [2019-10-06 23:19:48,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19995f354/5f0c4b8ffe7e437297113695339742dd/FLAG253e1d386 [2019-10-06 23:19:49,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19995f354/5f0c4b8ffe7e437297113695339742dd [2019-10-06 23:19:49,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-06 23:19:49,206 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-06 23:19:49,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-06 23:19:49,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-06 23:19:49,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-06 23:19:49,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 11:19:49" (1/1) ... [2019-10-06 23:19:49,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35abdc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:19:49, skipping insertion in model container [2019-10-06 23:19:49,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 11:19:49" (1/1) ... [2019-10-06 23:19:49,220 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-06 23:19:49,237 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-06 23:19:49,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-06 23:19:49,413 INFO L188 MainTranslator]: Completed pre-run [2019-10-06 23:19:49,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-06 23:19:49,540 INFO L192 MainTranslator]: Completed translation [2019-10-06 23:19:49,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:19:49 WrapperNode [2019-10-06 23:19:49,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-06 23:19:49,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-06 23:19:49,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-06 23:19:49,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-06 23:19:49,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:19:49" (1/1) ... [2019-10-06 23:19:49,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:19:49" (1/1) ... [2019-10-06 23:19:49,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:19:49" (1/1) ... [2019-10-06 23:19:49,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:19:49" (1/1) ... [2019-10-06 23:19:49,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:19:49" (1/1) ... [2019-10-06 23:19:49,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:19:49" (1/1) ... [2019-10-06 23:19:49,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:19:49" (1/1) ... [2019-10-06 23:19:49,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-06 23:19:49,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-06 23:19:49,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-06 23:19:49,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-06 23:19:49,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:19:49" (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 [2019-10-06 23:19:49,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-06 23:19:49,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-06 23:19:49,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-06 23:19:49,652 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-06 23:19:49,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-06 23:19:49,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-06 23:19:49,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-06 23:19:49,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-06 23:19:49,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-06 23:19:49,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-06 23:19:49,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-06 23:19:49,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-06 23:19:49,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-06 23:19:49,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-06 23:19:50,173 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-06 23:19:50,173 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-06 23:19:50,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 11:19:50 BoogieIcfgContainer [2019-10-06 23:19:50,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-06 23:19:50,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-06 23:19:50,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-06 23:19:50,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-06 23:19:50,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 11:19:49" (1/3) ... [2019-10-06 23:19:50,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c866d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 11:19:50, skipping insertion in model container [2019-10-06 23:19:50,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:19:49" (2/3) ... [2019-10-06 23:19:50,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c866d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 11:19:50, skipping insertion in model container [2019-10-06 23:19:50,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 11:19:50" (3/3) ... [2019-10-06 23:19:50,187 INFO L109 eAbstractionObserver]: Analyzing ICFG sorting_selectionsort_2_ground.i [2019-10-06 23:19:50,197 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-06 23:19:50,206 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-06 23:19:50,217 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-06 23:19:50,245 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-06 23:19:50,246 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-06 23:19:50,246 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-06 23:19:50,246 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-06 23:19:50,246 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-06 23:19:50,246 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-06 23:19:50,246 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-06 23:19:50,246 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-06 23:19:50,264 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-10-06 23:19:50,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-06 23:19:50,270 INFO L377 BasicCegarLoop]: Found error trace [2019-10-06 23:19:50,271 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-06 23:19:50,273 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-06 23:19:50,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-06 23:19:50,278 INFO L82 PathProgramCache]: Analyzing trace with hash -702995818, now seen corresponding path program 1 times [2019-10-06 23:19:50,285 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-06 23:19:50,285 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:19:50,285 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:19:50,285 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:19:50,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-06 23:19:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:19:50,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-06 23:19:50,438 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:19:50,439 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-06 23:19:50,439 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-06 23:19:50,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-06 23:19:50,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-06 23:19:50,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-06 23:19:50,465 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2019-10-06 23:19:50,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-06 23:19:50,589 INFO L93 Difference]: Finished difference Result 60 states and 92 transitions. [2019-10-06 23:19:50,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-06 23:19:50,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-10-06 23:19:50,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-06 23:19:50,610 INFO L225 Difference]: With dead ends: 60 [2019-10-06 23:19:50,610 INFO L226 Difference]: Without dead ends: 35 [2019-10-06 23:19:50,617 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-06 23:19:50,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-06 23:19:50,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 27. [2019-10-06 23:19:50,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-06 23:19:50,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-10-06 23:19:50,683 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 13 [2019-10-06 23:19:50,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-06 23:19:50,684 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-10-06 23:19:50,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-06 23:19:50,685 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2019-10-06 23:19:50,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-06 23:19:50,688 INFO L377 BasicCegarLoop]: Found error trace [2019-10-06 23:19:50,688 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-06 23:19:50,688 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-06 23:19:50,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-06 23:19:50,690 INFO L82 PathProgramCache]: Analyzing trace with hash -663003876, now seen corresponding path program 1 times [2019-10-06 23:19:50,691 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-06 23:19:50,691 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:19:50,691 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:19:50,692 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:19:50,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-06 23:19:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:19:50,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-06 23:19:50,824 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:19:50,825 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-06 23:19:50,825 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-06 23:19:50,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-06 23:19:50,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-06 23:19:50,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-06 23:19:50,829 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 4 states. [2019-10-06 23:19:50,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-06 23:19:50,916 INFO L93 Difference]: Finished difference Result 55 states and 79 transitions. [2019-10-06 23:19:50,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-06 23:19:50,919 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-10-06 23:19:50,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-06 23:19:50,920 INFO L225 Difference]: With dead ends: 55 [2019-10-06 23:19:50,920 INFO L226 Difference]: Without dead ends: 36 [2019-10-06 23:19:50,921 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-06 23:19:50,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-06 23:19:50,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2019-10-06 23:19:50,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-06 23:19:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2019-10-06 23:19:50,929 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 15 [2019-10-06 23:19:50,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-06 23:19:50,930 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2019-10-06 23:19:50,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-06 23:19:50,930 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2019-10-06 23:19:50,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-06 23:19:50,931 INFO L377 BasicCegarLoop]: Found error trace [2019-10-06 23:19:50,931 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-06 23:19:50,931 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-06 23:19:50,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-06 23:19:50,932 INFO L82 PathProgramCache]: Analyzing trace with hash -906594349, now seen corresponding path program 1 times [2019-10-06 23:19:50,932 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-06 23:19:50,932 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:19:50,933 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:19:50,933 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:19:50,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-06 23:19:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:19:50,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-06 23:19:50,991 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:19:50,991 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-06 23:19:50,996 INFO L95 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 [2019-10-06 23:19:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:19:51,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-06 23:19:51,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-06 23:19:51,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-06 23:19:51,103 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-06 23:19:51,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-06 23:19:51,153 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-06 23:19:51,192 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-06 23:19:51,193 INFO L169 IcfgInterpreter]: Building call graph [2019-10-06 23:19:51,200 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-06 23:19:51,210 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-06 23:19:51,211 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-06 23:19:51,395 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-06 23:19:51,849 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 47 for LOIs [2019-10-06 23:19:51,876 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-06 23:19:51,894 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-06 23:19:51,895 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-06 23:19:51,895 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (exists ((v_prenex_2 Int) (v_prenex_3 Int) (|v_main_~#a~0.offset_BEFORE_CALL_1| Int) (v_prenex_1 Int) (v_main_~i~0_BEFORE_CALL_1 Int) (v_main_~s~0_BEFORE_CALL_1 Int) (|v_main_~#a~0.base_BEFORE_CALL_1| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~s~0_BEFORE_CALL_1)))) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~s~0_BEFORE_CALL_1)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2) 4))) (< v_prenex_2 99999) (<= v_prenex_2 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2) 4)))) (< v_prenex_2 99999) (<= v_prenex_2 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))))))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:19:51,896 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:19:51,896 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (<= __VERIFIER_assert_~cond 0) (exists ((v_prenex_2 Int) (v_prenex_3 Int) (|v_main_~#a~0.offset_BEFORE_CALL_1| Int) (v_prenex_1 Int) (v_main_~i~0_BEFORE_CALL_1 Int) (v_main_~s~0_BEFORE_CALL_1 Int) (|v_main_~#a~0.base_BEFORE_CALL_1| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~s~0_BEFORE_CALL_1)))) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~s~0_BEFORE_CALL_1)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2) 4))) (< v_prenex_2 99999) (<= v_prenex_2 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2) 4)))) (< v_prenex_2 99999) (<= v_prenex_2 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))))))) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:19:51,897 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-06 23:19:51,897 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (<= __VERIFIER_assert_~cond 0) (exists ((v_prenex_2 Int) (v_prenex_3 Int) (|v_main_~#a~0.offset_BEFORE_CALL_1| Int) (v_prenex_1 Int) (v_main_~i~0_BEFORE_CALL_1 Int) (v_main_~s~0_BEFORE_CALL_1 Int) (|v_main_~#a~0.base_BEFORE_CALL_1| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~s~0_BEFORE_CALL_1)))) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~s~0_BEFORE_CALL_1)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2) 4))) (< v_prenex_2 99999) (<= v_prenex_2 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2) 4)))) (< v_prenex_2 99999) (<= v_prenex_2 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))))))) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:19:51,897 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-06 23:19:51,898 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:19:51,898 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:19:51,900 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:19:51,900 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:19:51,901 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-06 23:19:51,901 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-06 23:19:51,901 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-06 23:19:51,901 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-06 23:19:51,902 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((v_prenex_2 Int) (v_prenex_3 Int) (|v_main_~#a~0.offset_BEFORE_CALL_1| Int) (v_prenex_1 Int) (v_main_~i~0_BEFORE_CALL_1 Int) (v_main_~s~0_BEFORE_CALL_1 Int) (|v_main_~#a~0.base_BEFORE_CALL_1| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~s~0_BEFORE_CALL_1)))) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~s~0_BEFORE_CALL_1)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2) 4))) (< v_prenex_2 99999) (<= v_prenex_2 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* 4 v_prenex_2) 4)))) (< v_prenex_2 99999) (<= v_prenex_2 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* 4 v_main_~i~0_BEFORE_CALL_1) 4))))))) [2019-10-06 23:19:52,269 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-06 23:19:52,270 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4, 11] total 18 [2019-10-06 23:19:52,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-06 23:19:52,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-06 23:19:52,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2019-10-06 23:19:52,272 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand 18 states. [2019-10-06 23:19:53,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-06 23:19:53,616 INFO L93 Difference]: Finished difference Result 105 states and 160 transitions. [2019-10-06 23:19:53,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-06 23:19:53,616 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 16 [2019-10-06 23:19:53,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-06 23:19:53,618 INFO L225 Difference]: With dead ends: 105 [2019-10-06 23:19:53,618 INFO L226 Difference]: Without dead ends: 84 [2019-10-06 23:19:53,620 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=246, Invalid=1014, Unknown=0, NotChecked=0, Total=1260 [2019-10-06 23:19:53,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-10-06 23:19:53,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 66. [2019-10-06 23:19:53,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-10-06 23:19:53,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 94 transitions. [2019-10-06 23:19:53,645 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 94 transitions. Word has length 16 [2019-10-06 23:19:53,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-06 23:19:53,645 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 94 transitions. [2019-10-06 23:19:53,646 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-06 23:19:53,646 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 94 transitions. [2019-10-06 23:19:53,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-06 23:19:53,648 INFO L377 BasicCegarLoop]: Found error trace [2019-10-06 23:19:53,649 INFO L385 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-06 23:19:53,859 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:19:53,860 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-06 23:19:53,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-06 23:19:53,861 INFO L82 PathProgramCache]: Analyzing trace with hash 55121478, now seen corresponding path program 2 times [2019-10-06 23:19:53,862 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-06 23:19:53,862 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:19:53,862 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:19:53,863 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:19:53,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-06 23:19:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:19:53,956 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-06 23:19:53,965 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:19:53,965 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-06 23:19:53,965 INFO L93 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 [2019-10-06 23:19:54,024 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-06 23:19:54,025 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-06 23:19:54,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-06 23:19:54,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-06 23:19:54,043 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-06 23:19:54,044 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-06 23:19:54,077 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-06 23:19:54,077 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-06 23:19:54,079 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-06 23:19:54,079 INFO L169 IcfgInterpreter]: Building call graph [2019-10-06 23:19:54,080 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-06 23:19:54,080 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-06 23:19:54,081 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-06 23:19:54,120 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-06 23:19:54,353 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 47 for LOIs [2019-10-06 23:19:54,378 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-06 23:19:54,387 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-06 23:19:54,387 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-06 23:19:54,387 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (exists ((v_prenex_6 Int) (|v_main_~#a~0.base_BEFORE_CALL_2| Int) (v_prenex_4 Int) (v_prenex_5 Int) (|v_main_~#a~0.offset_BEFORE_CALL_2| Int) (v_main_~s~0_BEFORE_CALL_2 Int) (v_main_~i~0_BEFORE_CALL_2 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6) 4))) (<= v_prenex_6 0) (< v_prenex_6 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~i~0_BEFORE_CALL_2 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4)))) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~s~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2)))) (<= v_main_~i~0_BEFORE_CALL_2 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4)))) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~s~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4))) (<= v_main_~i~0_BEFORE_CALL_2 0) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4))) (<= v_main_~i~0_BEFORE_CALL_2 0) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6) 4)))) (<= v_prenex_6 0) (< v_prenex_6 99999)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:19:54,388 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:19:54,388 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (exists ((v_prenex_6 Int) (|v_main_~#a~0.base_BEFORE_CALL_2| Int) (v_prenex_4 Int) (v_prenex_5 Int) (|v_main_~#a~0.offset_BEFORE_CALL_2| Int) (v_main_~s~0_BEFORE_CALL_2 Int) (v_main_~i~0_BEFORE_CALL_2 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6) 4))) (<= v_prenex_6 0) (< v_prenex_6 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~i~0_BEFORE_CALL_2 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4)))) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~s~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2)))) (<= v_main_~i~0_BEFORE_CALL_2 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4)))) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~s~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4))) (<= v_main_~i~0_BEFORE_CALL_2 0) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4))) (<= v_main_~i~0_BEFORE_CALL_2 0) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6) 4)))) (<= v_prenex_6 0) (< v_prenex_6 99999)))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:19:54,388 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-06 23:19:54,389 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (exists ((v_prenex_6 Int) (|v_main_~#a~0.base_BEFORE_CALL_2| Int) (v_prenex_4 Int) (v_prenex_5 Int) (|v_main_~#a~0.offset_BEFORE_CALL_2| Int) (v_main_~s~0_BEFORE_CALL_2 Int) (v_main_~i~0_BEFORE_CALL_2 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6) 4))) (<= v_prenex_6 0) (< v_prenex_6 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~i~0_BEFORE_CALL_2 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4)))) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~s~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2)))) (<= v_main_~i~0_BEFORE_CALL_2 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4)))) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~s~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4))) (<= v_main_~i~0_BEFORE_CALL_2 0) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4))) (<= v_main_~i~0_BEFORE_CALL_2 0) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6) 4)))) (<= v_prenex_6 0) (< v_prenex_6 99999)))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:19:54,389 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-06 23:19:54,389 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:19:54,390 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:19:54,390 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:19:54,391 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:19:54,391 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-06 23:19:54,391 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-06 23:19:54,391 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-06 23:19:54,392 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-06 23:19:54,392 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((v_prenex_6 Int) (|v_main_~#a~0.base_BEFORE_CALL_2| Int) (v_prenex_4 Int) (v_prenex_5 Int) (|v_main_~#a~0.offset_BEFORE_CALL_2| Int) (v_main_~s~0_BEFORE_CALL_2 Int) (v_main_~i~0_BEFORE_CALL_2 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6) 4))) (<= v_prenex_6 0) (< v_prenex_6 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~i~0_BEFORE_CALL_2 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4)))) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~s~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2)))) (<= v_main_~i~0_BEFORE_CALL_2 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4)))) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~s~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4))) (<= v_main_~i~0_BEFORE_CALL_2 0) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* 4 v_main_~i~0_BEFORE_CALL_2) 4))) (<= v_main_~i~0_BEFORE_CALL_2 0) (< v_main_~i~0_BEFORE_CALL_2 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* 4 v_prenex_6) 4)))) (<= v_prenex_6 0) (< v_prenex_6 99999)))) [2019-10-06 23:19:54,682 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-06 23:19:54,682 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 11] total 21 [2019-10-06 23:19:54,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-06 23:19:54,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-06 23:19:54,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2019-10-06 23:19:54,685 INFO L87 Difference]: Start difference. First operand 66 states and 94 transitions. Second operand 21 states. [2019-10-06 23:19:56,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-06 23:19:56,007 INFO L93 Difference]: Finished difference Result 144 states and 214 transitions. [2019-10-06 23:19:56,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-06 23:19:56,007 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 20 [2019-10-06 23:19:56,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-06 23:19:56,009 INFO L225 Difference]: With dead ends: 144 [2019-10-06 23:19:56,010 INFO L226 Difference]: Without dead ends: 92 [2019-10-06 23:19:56,012 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=313, Invalid=1493, Unknown=0, NotChecked=0, Total=1806 [2019-10-06 23:19:56,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-10-06 23:19:56,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 74. [2019-10-06 23:19:56,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-10-06 23:19:56,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2019-10-06 23:19:56,029 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 20 [2019-10-06 23:19:56,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-06 23:19:56,030 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2019-10-06 23:19:56,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-06 23:19:56,030 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2019-10-06 23:19:56,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-06 23:19:56,031 INFO L377 BasicCegarLoop]: Found error trace [2019-10-06 23:19:56,031 INFO L385 BasicCegarLoop]: trace histogram [6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-06 23:19:56,234 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:19:56,240 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-06 23:19:56,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-06 23:19:56,240 INFO L82 PathProgramCache]: Analyzing trace with hash 425780998, now seen corresponding path program 3 times [2019-10-06 23:19:56,240 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-06 23:19:56,241 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:19:56,241 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:19:56,241 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:19:56,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-06 23:19:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:19:56,359 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-06 23:19:56,359 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:19:56,360 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-06 23:19:56,360 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:19:56,455 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-06 23:19:56,456 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-06 23:19:56,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-06 23:19:56,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-06 23:19:56,525 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-06 23:19:56,525 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-06 23:19:56,597 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-06 23:19:56,597 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-06 23:19:56,599 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-06 23:19:56,599 INFO L169 IcfgInterpreter]: Building call graph [2019-10-06 23:19:56,600 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-06 23:19:56,600 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-06 23:19:56,600 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-06 23:19:56,629 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-06 23:19:56,839 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 76 for LOIs [2019-10-06 23:19:56,852 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-06 23:19:56,857 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-06 23:19:56,857 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-06 23:19:56,857 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (exists ((v_prenex_16 Int) (v_prenex_15 Int) (|v_main_~#a~0.base_BEFORE_CALL_3| Int) (v_prenex_12 Int) (v_prenex_11 Int) (|v_main_~#a~0.offset_BEFORE_CALL_3| Int) (v_prenex_14 Int) (v_prenex_13 Int) (v_main_~s~0_BEFORE_CALL_3 Int) (v_prenex_10 Int) (v_main_~i~0_BEFORE_CALL_3 Int) (v_prenex_8 Int) (v_prenex_9 Int) (v_prenex_7 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16))) (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_15)))) (< v_prenex_16 99999) (<= v_prenex_16 0) (<= (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16))) (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16) 4)))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* 4 v_prenex_12))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* 4 v_prenex_12) 4))) (< v_prenex_12 99999) (<= v_prenex_12 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_16 99999) (<= v_prenex_16 0) (<= (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16))) (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16) 4)))) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~s~0_BEFORE_CALL_3)))) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3) 4))))) (and (< v_prenex_9 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* 4 v_prenex_9))) (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* 4 v_prenex_9) 4)))) (<= v_prenex_9 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3) 4))))))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:19:56,858 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:19:56,858 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((v_prenex_16 Int) (v_prenex_15 Int) (|v_main_~#a~0.base_BEFORE_CALL_3| Int) (v_prenex_12 Int) (v_prenex_11 Int) (|v_main_~#a~0.offset_BEFORE_CALL_3| Int) (v_prenex_14 Int) (v_prenex_13 Int) (v_main_~s~0_BEFORE_CALL_3 Int) (v_prenex_10 Int) (v_main_~i~0_BEFORE_CALL_3 Int) (v_prenex_8 Int) (v_prenex_9 Int) (v_prenex_7 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16))) (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_15)))) (< v_prenex_16 99999) (<= v_prenex_16 0) (<= (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16))) (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16) 4)))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* 4 v_prenex_12))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* 4 v_prenex_12) 4))) (< v_prenex_12 99999) (<= v_prenex_12 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_16 99999) (<= v_prenex_16 0) (<= (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16))) (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16) 4)))) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~s~0_BEFORE_CALL_3)))) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3) 4))))) (and (< v_prenex_9 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* 4 v_prenex_9))) (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* 4 v_prenex_9) 4)))) (<= v_prenex_9 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3) 4))))))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:19:56,858 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-06 23:19:56,859 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((v_prenex_16 Int) (v_prenex_15 Int) (|v_main_~#a~0.base_BEFORE_CALL_3| Int) (v_prenex_12 Int) (v_prenex_11 Int) (|v_main_~#a~0.offset_BEFORE_CALL_3| Int) (v_prenex_14 Int) (v_prenex_13 Int) (v_main_~s~0_BEFORE_CALL_3 Int) (v_prenex_10 Int) (v_main_~i~0_BEFORE_CALL_3 Int) (v_prenex_8 Int) (v_prenex_9 Int) (v_prenex_7 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16))) (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_15)))) (< v_prenex_16 99999) (<= v_prenex_16 0) (<= (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16))) (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16) 4)))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* 4 v_prenex_12))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* 4 v_prenex_12) 4))) (< v_prenex_12 99999) (<= v_prenex_12 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_16 99999) (<= v_prenex_16 0) (<= (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16))) (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16) 4)))) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~s~0_BEFORE_CALL_3)))) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3) 4))))) (and (< v_prenex_9 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* 4 v_prenex_9))) (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* 4 v_prenex_9) 4)))) (<= v_prenex_9 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3) 4))))))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:19:56,859 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-06 23:19:56,859 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:19:56,859 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:19:56,859 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:19:56,860 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:19:56,860 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-06 23:19:56,860 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-06 23:19:56,860 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-06 23:19:56,861 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-06 23:19:56,861 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((v_prenex_16 Int) (v_prenex_15 Int) (|v_main_~#a~0.base_BEFORE_CALL_3| Int) (v_prenex_12 Int) (v_prenex_11 Int) (|v_main_~#a~0.offset_BEFORE_CALL_3| Int) (v_prenex_14 Int) (v_prenex_13 Int) (v_main_~s~0_BEFORE_CALL_3 Int) (v_prenex_10 Int) (v_main_~i~0_BEFORE_CALL_3 Int) (v_prenex_8 Int) (v_prenex_9 Int) (v_prenex_7 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16))) (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_15)))) (< v_prenex_16 99999) (<= v_prenex_16 0) (<= (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16))) (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16) 4)))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* 4 v_prenex_12))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* 4 v_prenex_12) 4))) (< v_prenex_12 99999) (<= v_prenex_12 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_16 99999) (<= v_prenex_16 0) (<= (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16))) (select (select |#memory_int| v_prenex_13) (+ v_prenex_14 (* 4 v_prenex_16) 4)))) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~s~0_BEFORE_CALL_3)))) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3) 4))))) (and (< v_prenex_9 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* 4 v_prenex_9))) (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* 4 v_prenex_9) 4)))) (<= v_prenex_9 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* 4 v_main_~i~0_BEFORE_CALL_3) 4))))))) [2019-10-06 23:19:57,279 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-06 23:19:57,279 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7, 11] total 29 [2019-10-06 23:19:57,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-10-06 23:19:57,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-10-06 23:19:57,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=665, Unknown=0, NotChecked=0, Total=812 [2019-10-06 23:19:57,282 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. Second operand 29 states. [2019-10-06 23:20:02,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-06 23:20:02,677 INFO L93 Difference]: Finished difference Result 259 states and 401 transitions. [2019-10-06 23:20:02,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-10-06 23:20:02,678 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 24 [2019-10-06 23:20:02,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-06 23:20:02,682 INFO L225 Difference]: With dead ends: 259 [2019-10-06 23:20:02,682 INFO L226 Difference]: Without dead ends: 195 [2019-10-06 23:20:02,685 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1723 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1411, Invalid=5068, Unknown=1, NotChecked=0, Total=6480 [2019-10-06 23:20:02,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-10-06 23:20:02,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 159. [2019-10-06 23:20:02,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-10-06 23:20:02,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 229 transitions. [2019-10-06 23:20:02,717 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 229 transitions. Word has length 24 [2019-10-06 23:20:02,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-06 23:20:02,717 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 229 transitions. [2019-10-06 23:20:02,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-10-06 23:20:02,717 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 229 transitions. [2019-10-06 23:20:02,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-06 23:20:02,718 INFO L377 BasicCegarLoop]: Found error trace [2019-10-06 23:20:02,718 INFO L385 BasicCegarLoop]: trace histogram [10, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-06 23:20:02,922 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:20:02,922 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-06 23:20:02,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-06 23:20:02,923 INFO L82 PathProgramCache]: Analyzing trace with hash 2121322217, now seen corresponding path program 4 times [2019-10-06 23:20:02,924 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-06 23:20:02,924 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:20:02,924 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:20:02,925 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:20:02,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-06 23:20:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:20:03,051 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-10-06 23:20:03,052 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:20:03,052 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-06 23:20:03,052 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:20:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:20:03,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-06 23:20:03,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-06 23:20:03,285 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-06 23:20:03,285 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-06 23:20:03,514 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-06 23:20:03,514 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-06 23:20:03,515 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-06 23:20:03,516 INFO L169 IcfgInterpreter]: Building call graph [2019-10-06 23:20:03,516 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-06 23:20:03,516 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-06 23:20:03,517 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-06 23:20:03,550 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-06 23:20:03,711 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 47 for LOIs [2019-10-06 23:20:03,720 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-06 23:20:03,725 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-06 23:20:03,725 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-06 23:20:03,726 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (exists ((|v_main_~#a~0.base_BEFORE_CALL_4| Int) (v_prenex_18 Int) (|v_main_~#a~0.offset_BEFORE_CALL_4| Int) (v_prenex_17 Int) (v_main_~s~0_BEFORE_CALL_4 Int) (v_prenex_19 Int) (v_main_~i~0_BEFORE_CALL_4 Int)) (or (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4) 4))) (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_19 0) (< v_prenex_19 99999) (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (and (not (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_19 0) (< v_prenex_19 99999) (= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_main_~s~0_BEFORE_CALL_4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_19 0) (< v_prenex_19 99999) (= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_main_~s~0_BEFORE_CALL_4)))) (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (and (not (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_19 0) (< v_prenex_19 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~i~0_BEFORE_CALL_4 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4) 4)))) (< v_main_~i~0_BEFORE_CALL_4 99999)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:20:03,726 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:20:03,726 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (<= __VERIFIER_assert_~cond 0) (exists ((|v_main_~#a~0.base_BEFORE_CALL_4| Int) (v_prenex_18 Int) (|v_main_~#a~0.offset_BEFORE_CALL_4| Int) (v_prenex_17 Int) (v_main_~s~0_BEFORE_CALL_4 Int) (v_prenex_19 Int) (v_main_~i~0_BEFORE_CALL_4 Int)) (or (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4) 4))) (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_19 0) (< v_prenex_19 99999) (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (and (not (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_19 0) (< v_prenex_19 99999) (= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_main_~s~0_BEFORE_CALL_4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_19 0) (< v_prenex_19 99999) (= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_main_~s~0_BEFORE_CALL_4)))) (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (and (not (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_19 0) (< v_prenex_19 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~i~0_BEFORE_CALL_4 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4) 4)))) (< v_main_~i~0_BEFORE_CALL_4 99999)))) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:20:03,726 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-06 23:20:03,727 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (<= __VERIFIER_assert_~cond 0) (exists ((|v_main_~#a~0.base_BEFORE_CALL_4| Int) (v_prenex_18 Int) (|v_main_~#a~0.offset_BEFORE_CALL_4| Int) (v_prenex_17 Int) (v_main_~s~0_BEFORE_CALL_4 Int) (v_prenex_19 Int) (v_main_~i~0_BEFORE_CALL_4 Int)) (or (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4) 4))) (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_19 0) (< v_prenex_19 99999) (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (and (not (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_19 0) (< v_prenex_19 99999) (= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_main_~s~0_BEFORE_CALL_4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_19 0) (< v_prenex_19 99999) (= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_main_~s~0_BEFORE_CALL_4)))) (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (and (not (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_19 0) (< v_prenex_19 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~i~0_BEFORE_CALL_4 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4) 4)))) (< v_main_~i~0_BEFORE_CALL_4 99999)))) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:20:03,727 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-06 23:20:03,727 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:20:03,727 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:20:03,728 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:20:03,728 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:20:03,728 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-06 23:20:03,728 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-06 23:20:03,728 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-06 23:20:03,729 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-06 23:20:03,731 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((|v_main_~#a~0.base_BEFORE_CALL_4| Int) (v_prenex_18 Int) (|v_main_~#a~0.offset_BEFORE_CALL_4| Int) (v_prenex_17 Int) (v_main_~s~0_BEFORE_CALL_4 Int) (v_prenex_19 Int) (v_main_~i~0_BEFORE_CALL_4 Int)) (or (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4) 4))) (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_19 0) (< v_prenex_19 99999) (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (and (not (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_19 0) (< v_prenex_19 99999) (= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_main_~s~0_BEFORE_CALL_4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_19 0) (< v_prenex_19 99999) (= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_main_~s~0_BEFORE_CALL_4)))) (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (and (not (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* 4 v_prenex_19) 4)))) (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_19 0) (< v_prenex_19 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~i~0_BEFORE_CALL_4 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* 4 v_main_~i~0_BEFORE_CALL_4) 4)))) (< v_main_~i~0_BEFORE_CALL_4 99999)))) [2019-10-06 23:20:04,173 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-06 23:20:04,174 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13, 11] total 42 [2019-10-06 23:20:04,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-10-06 23:20:04,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-10-06 23:20:04,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=1332, Unknown=0, NotChecked=0, Total=1722 [2019-10-06 23:20:04,177 INFO L87 Difference]: Start difference. First operand 159 states and 229 transitions. Second operand 42 states. [2019-10-06 23:20:10,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-06 23:20:10,128 INFO L93 Difference]: Finished difference Result 526 states and 825 transitions. [2019-10-06 23:20:10,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2019-10-06 23:20:10,130 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 31 [2019-10-06 23:20:10,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-06 23:20:10,133 INFO L225 Difference]: With dead ends: 526 [2019-10-06 23:20:10,133 INFO L226 Difference]: Without dead ends: 383 [2019-10-06 23:20:10,139 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4605 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=4117, Invalid=12395, Unknown=0, NotChecked=0, Total=16512 [2019-10-06 23:20:10,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2019-10-06 23:20:10,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 311. [2019-10-06 23:20:10,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2019-10-06 23:20:10,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 465 transitions. [2019-10-06 23:20:10,181 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 465 transitions. Word has length 31 [2019-10-06 23:20:10,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-06 23:20:10,182 INFO L462 AbstractCegarLoop]: Abstraction has 311 states and 465 transitions. [2019-10-06 23:20:10,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-10-06 23:20:10,182 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 465 transitions. [2019-10-06 23:20:10,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-06 23:20:10,183 INFO L377 BasicCegarLoop]: Found error trace [2019-10-06 23:20:10,183 INFO L385 BasicCegarLoop]: trace histogram [22, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-06 23:20:10,386 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:20:10,387 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-06 23:20:10,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-06 23:20:10,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1568778202, now seen corresponding path program 5 times [2019-10-06 23:20:10,387 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-06 23:20:10,387 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:20:10,388 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:20:10,388 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:20:10,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-06 23:20:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:20:10,525 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2019-10-06 23:20:10,526 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:20:10,526 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-06 23:20:10,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:20:10,659 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-10-06 23:20:10,659 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-06 23:20:10,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-06 23:20:10,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-06 23:20:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2019-10-06 23:20:10,687 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-06 23:20:10,835 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2019-10-06 23:20:10,836 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-06 23:20:10,837 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-06 23:20:10,837 INFO L169 IcfgInterpreter]: Building call graph [2019-10-06 23:20:10,837 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-06 23:20:10,838 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-06 23:20:10,838 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-06 23:20:10,856 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-06 23:20:10,974 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 76 for LOIs [2019-10-06 23:20:10,980 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-06 23:20:10,983 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-06 23:20:10,983 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-06 23:20:10,983 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (exists ((v_prenex_27 Int) (v_prenex_26 Int) (|v_main_~#a~0.base_BEFORE_CALL_5| Int) (v_prenex_29 Int) (|v_main_~#a~0.offset_BEFORE_CALL_5| Int) (v_prenex_28 Int) (v_prenex_23 Int) (v_prenex_22 Int) (v_prenex_25 Int) (v_main_~s~0_BEFORE_CALL_5 Int) (v_prenex_24 Int) (v_prenex_21 Int) (v_prenex_20 Int) (v_main_~i~0_BEFORE_CALL_5 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_22 0) (< v_prenex_22 99999) (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22) 4))) (= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_main_~s~0_BEFORE_CALL_5))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22))))) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_23) (+ v_prenex_24 (* 4 v_prenex_25))) (select (select |#memory_int| v_prenex_23) (+ v_prenex_24 (* 4 v_prenex_25) 4)))) (<= v_prenex_25 0) (< v_prenex_25 99999)) (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29))) (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29) 4)))) (<= v_prenex_29 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_5 99999) (<= v_main_~i~0_BEFORE_CALL_5 0) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* 4 v_main_~i~0_BEFORE_CALL_5))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* 4 v_main_~i~0_BEFORE_CALL_5) 4)))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_22 0) (< v_prenex_22 99999) (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22) 4)))) (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_28))) (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29)))) (not (<= (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29))) (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29) 4)))) (<= v_prenex_29 0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:20:10,984 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:20:10,984 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (exists ((v_prenex_27 Int) (v_prenex_26 Int) (|v_main_~#a~0.base_BEFORE_CALL_5| Int) (v_prenex_29 Int) (|v_main_~#a~0.offset_BEFORE_CALL_5| Int) (v_prenex_28 Int) (v_prenex_23 Int) (v_prenex_22 Int) (v_prenex_25 Int) (v_main_~s~0_BEFORE_CALL_5 Int) (v_prenex_24 Int) (v_prenex_21 Int) (v_prenex_20 Int) (v_main_~i~0_BEFORE_CALL_5 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_22 0) (< v_prenex_22 99999) (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22) 4))) (= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_main_~s~0_BEFORE_CALL_5))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22))))) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_23) (+ v_prenex_24 (* 4 v_prenex_25))) (select (select |#memory_int| v_prenex_23) (+ v_prenex_24 (* 4 v_prenex_25) 4)))) (<= v_prenex_25 0) (< v_prenex_25 99999)) (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29))) (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29) 4)))) (<= v_prenex_29 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_5 99999) (<= v_main_~i~0_BEFORE_CALL_5 0) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* 4 v_main_~i~0_BEFORE_CALL_5))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* 4 v_main_~i~0_BEFORE_CALL_5) 4)))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_22 0) (< v_prenex_22 99999) (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22) 4)))) (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_28))) (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29)))) (not (<= (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29))) (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29) 4)))) (<= v_prenex_29 0)))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:20:10,984 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-06 23:20:10,984 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (exists ((v_prenex_27 Int) (v_prenex_26 Int) (|v_main_~#a~0.base_BEFORE_CALL_5| Int) (v_prenex_29 Int) (|v_main_~#a~0.offset_BEFORE_CALL_5| Int) (v_prenex_28 Int) (v_prenex_23 Int) (v_prenex_22 Int) (v_prenex_25 Int) (v_main_~s~0_BEFORE_CALL_5 Int) (v_prenex_24 Int) (v_prenex_21 Int) (v_prenex_20 Int) (v_main_~i~0_BEFORE_CALL_5 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_22 0) (< v_prenex_22 99999) (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22) 4))) (= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_main_~s~0_BEFORE_CALL_5))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22))))) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_23) (+ v_prenex_24 (* 4 v_prenex_25))) (select (select |#memory_int| v_prenex_23) (+ v_prenex_24 (* 4 v_prenex_25) 4)))) (<= v_prenex_25 0) (< v_prenex_25 99999)) (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29))) (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29) 4)))) (<= v_prenex_29 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_5 99999) (<= v_main_~i~0_BEFORE_CALL_5 0) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* 4 v_main_~i~0_BEFORE_CALL_5))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* 4 v_main_~i~0_BEFORE_CALL_5) 4)))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_22 0) (< v_prenex_22 99999) (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22) 4)))) (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_28))) (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29)))) (not (<= (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29))) (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29) 4)))) (<= v_prenex_29 0)))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:20:10,985 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-06 23:20:10,985 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:20:10,985 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:20:10,985 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0))) [2019-10-06 23:20:10,986 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:20:10,986 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-06 23:20:10,986 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-06 23:20:10,986 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-06 23:20:10,986 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-06 23:20:10,987 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((v_prenex_27 Int) (v_prenex_26 Int) (|v_main_~#a~0.base_BEFORE_CALL_5| Int) (v_prenex_29 Int) (|v_main_~#a~0.offset_BEFORE_CALL_5| Int) (v_prenex_28 Int) (v_prenex_23 Int) (v_prenex_22 Int) (v_prenex_25 Int) (v_main_~s~0_BEFORE_CALL_5 Int) (v_prenex_24 Int) (v_prenex_21 Int) (v_prenex_20 Int) (v_main_~i~0_BEFORE_CALL_5 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_22 0) (< v_prenex_22 99999) (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22) 4))) (= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_main_~s~0_BEFORE_CALL_5))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22))))) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_23) (+ v_prenex_24 (* 4 v_prenex_25))) (select (select |#memory_int| v_prenex_23) (+ v_prenex_24 (* 4 v_prenex_25) 4)))) (<= v_prenex_25 0) (< v_prenex_25 99999)) (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29))) (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29) 4)))) (<= v_prenex_29 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_5 99999) (<= v_main_~i~0_BEFORE_CALL_5 0) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* 4 v_main_~i~0_BEFORE_CALL_5))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* 4 v_main_~i~0_BEFORE_CALL_5) 4)))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_prenex_22 0) (< v_prenex_22 99999) (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* 4 v_prenex_22) 4)))) (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_28))) (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29)))) (not (<= (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29))) (select (select |#memory_int| v_prenex_26) (+ v_prenex_27 (* 4 v_prenex_29) 4)))) (<= v_prenex_29 0)))) [2019-10-06 23:20:11,332 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-06 23:20:11,333 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 11] total 33 [2019-10-06 23:20:11,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-10-06 23:20:11,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-10-06 23:20:11,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=811, Unknown=0, NotChecked=0, Total=1056 [2019-10-06 23:20:11,336 INFO L87 Difference]: Start difference. First operand 311 states and 465 transitions. Second operand 33 states. [2019-10-06 23:20:15,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-06 23:20:15,527 INFO L93 Difference]: Finished difference Result 668 states and 1030 transitions. [2019-10-06 23:20:15,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-10-06 23:20:15,528 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 44 [2019-10-06 23:20:15,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-06 23:20:15,532 INFO L225 Difference]: With dead ends: 668 [2019-10-06 23:20:15,532 INFO L226 Difference]: Without dead ends: 395 [2019-10-06 23:20:15,535 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1402 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1113, Invalid=4142, Unknown=1, NotChecked=0, Total=5256 [2019-10-06 23:20:15,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2019-10-06 23:20:15,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 323. [2019-10-06 23:20:15,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2019-10-06 23:20:15,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 477 transitions. [2019-10-06 23:20:15,572 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 477 transitions. Word has length 44 [2019-10-06 23:20:15,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-06 23:20:15,573 INFO L462 AbstractCegarLoop]: Abstraction has 323 states and 477 transitions. [2019-10-06 23:20:15,573 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-10-06 23:20:15,573 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 477 transitions. [2019-10-06 23:20:15,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-06 23:20:15,574 INFO L377 BasicCegarLoop]: Found error trace [2019-10-06 23:20:15,574 INFO L385 BasicCegarLoop]: trace histogram [22, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-06 23:20:15,775 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:20:15,776 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-06 23:20:15,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-06 23:20:15,776 INFO L82 PathProgramCache]: Analyzing trace with hash -2052712954, now seen corresponding path program 6 times [2019-10-06 23:20:15,776 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-06 23:20:15,777 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:20:15,777 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:20:15,777 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:20:15,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-06 23:20:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:20:16,119 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2019-10-06 23:20:16,119 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:20:16,119 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-06 23:20:16,119 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:20:16,246 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-06 23:20:16,247 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-06 23:20:16,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 24 conjunts are in the unsatisfiable core [2019-10-06 23:20:16,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-06 23:20:16,744 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2019-10-06 23:20:16,745 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-06 23:20:17,619 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2019-10-06 23:20:17,619 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-06 23:20:17,620 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-06 23:20:17,620 INFO L169 IcfgInterpreter]: Building call graph [2019-10-06 23:20:17,621 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-06 23:20:17,621 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-06 23:20:17,621 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-06 23:20:17,649 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-06 23:20:17,782 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 75 for LOIs [2019-10-06 23:20:17,788 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-06 23:20:17,790 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-06 23:20:17,791 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-06 23:20:17,791 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (exists ((|v_main_~#a~0.offset_BEFORE_CALL_6| Int) (v_prenex_38 Int) (v_prenex_37 Int) (v_prenex_39 Int) (v_main_~s~0_BEFORE_CALL_6 Int) (v_prenex_34 Int) (v_prenex_33 Int) (|v_main_~#a~0.base_BEFORE_CALL_6| Int) (v_prenex_36 Int) (v_prenex_35 Int) (v_prenex_30 Int) (v_prenex_32 Int) (v_prenex_31 Int) (v_main_~i~0_BEFORE_CALL_6 Int)) (or (and (< v_main_~s~0_BEFORE_CALL_6 99999) (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* 4 v_main_~s~0_BEFORE_CALL_6))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* 4 v_main_~s~0_BEFORE_CALL_6) 4))) (<= v_main_~s~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0) (= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_prenex_31))))) (and (<= v_prenex_38 0) (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_38 99999) (< (select (select |#memory_int| v_prenex_39) (+ v_prenex_36 (* 4 v_prenex_38) 4)) (select (select |#memory_int| v_prenex_39) (+ v_prenex_36 (* 4 v_prenex_38))))) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_37 99999) (not (<= (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37))) (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37) 4)))) (<= v_prenex_37 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_37 99999) (not (<= (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37))) (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37) 4)))) (<= v_prenex_37 0) (= (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37))) (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_34))))))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:20:17,791 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:20:17,791 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (exists ((|v_main_~#a~0.offset_BEFORE_CALL_6| Int) (v_prenex_38 Int) (v_prenex_37 Int) (v_prenex_39 Int) (v_main_~s~0_BEFORE_CALL_6 Int) (v_prenex_34 Int) (v_prenex_33 Int) (|v_main_~#a~0.base_BEFORE_CALL_6| Int) (v_prenex_36 Int) (v_prenex_35 Int) (v_prenex_30 Int) (v_prenex_32 Int) (v_prenex_31 Int) (v_main_~i~0_BEFORE_CALL_6 Int)) (or (and (< v_main_~s~0_BEFORE_CALL_6 99999) (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* 4 v_main_~s~0_BEFORE_CALL_6))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* 4 v_main_~s~0_BEFORE_CALL_6) 4))) (<= v_main_~s~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0) (= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_prenex_31))))) (and (<= v_prenex_38 0) (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_38 99999) (< (select (select |#memory_int| v_prenex_39) (+ v_prenex_36 (* 4 v_prenex_38) 4)) (select (select |#memory_int| v_prenex_39) (+ v_prenex_36 (* 4 v_prenex_38))))) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_37 99999) (not (<= (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37))) (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37) 4)))) (<= v_prenex_37 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_37 99999) (not (<= (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37))) (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37) 4)))) (<= v_prenex_37 0) (= (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37))) (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_34))))))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:20:17,791 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-06 23:20:17,792 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (exists ((|v_main_~#a~0.offset_BEFORE_CALL_6| Int) (v_prenex_38 Int) (v_prenex_37 Int) (v_prenex_39 Int) (v_main_~s~0_BEFORE_CALL_6 Int) (v_prenex_34 Int) (v_prenex_33 Int) (|v_main_~#a~0.base_BEFORE_CALL_6| Int) (v_prenex_36 Int) (v_prenex_35 Int) (v_prenex_30 Int) (v_prenex_32 Int) (v_prenex_31 Int) (v_main_~i~0_BEFORE_CALL_6 Int)) (or (and (< v_main_~s~0_BEFORE_CALL_6 99999) (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* 4 v_main_~s~0_BEFORE_CALL_6))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* 4 v_main_~s~0_BEFORE_CALL_6) 4))) (<= v_main_~s~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0) (= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_prenex_31))))) (and (<= v_prenex_38 0) (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_38 99999) (< (select (select |#memory_int| v_prenex_39) (+ v_prenex_36 (* 4 v_prenex_38) 4)) (select (select |#memory_int| v_prenex_39) (+ v_prenex_36 (* 4 v_prenex_38))))) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_37 99999) (not (<= (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37))) (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37) 4)))) (<= v_prenex_37 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_37 99999) (not (<= (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37))) (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37) 4)))) (<= v_prenex_37 0) (= (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37))) (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_34))))))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:20:17,792 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-06 23:20:17,792 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:20:17,792 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:20:17,792 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:20:17,793 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:20:17,793 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-06 23:20:17,793 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-06 23:20:17,793 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-06 23:20:17,793 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-06 23:20:17,794 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((|v_main_~#a~0.offset_BEFORE_CALL_6| Int) (v_prenex_38 Int) (v_prenex_37 Int) (v_prenex_39 Int) (v_main_~s~0_BEFORE_CALL_6 Int) (v_prenex_34 Int) (v_prenex_33 Int) (|v_main_~#a~0.base_BEFORE_CALL_6| Int) (v_prenex_36 Int) (v_prenex_35 Int) (v_prenex_30 Int) (v_prenex_32 Int) (v_prenex_31 Int) (v_main_~i~0_BEFORE_CALL_6 Int)) (or (and (< v_main_~s~0_BEFORE_CALL_6 99999) (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* 4 v_main_~s~0_BEFORE_CALL_6))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* 4 v_main_~s~0_BEFORE_CALL_6) 4))) (<= v_main_~s~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0) (= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_prenex_31))))) (and (<= v_prenex_38 0) (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_38 99999) (< (select (select |#memory_int| v_prenex_39) (+ v_prenex_36 (* 4 v_prenex_38) 4)) (select (select |#memory_int| v_prenex_39) (+ v_prenex_36 (* 4 v_prenex_38))))) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* 4 v_main_~i~0_BEFORE_CALL_6) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_37 99999) (not (<= (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37))) (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37) 4)))) (<= v_prenex_37 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_37 99999) (not (<= (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37))) (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37) 4)))) (<= v_prenex_37 0) (= (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_37))) (select (select |#memory_int| v_prenex_35) (+ v_prenex_33 (* 4 v_prenex_34))))))) [2019-10-06 23:20:18,360 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-06 23:20:18,360 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 25, 25, 11] total 77 [2019-10-06 23:20:18,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 77 states [2019-10-06 23:20:18,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2019-10-06 23:20:18,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1455, Invalid=4397, Unknown=0, NotChecked=0, Total=5852 [2019-10-06 23:20:18,365 INFO L87 Difference]: Start difference. First operand 323 states and 477 transitions. Second operand 77 states. [2019-10-06 23:20:47,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-06 23:20:47,860 INFO L93 Difference]: Finished difference Result 1181 states and 1927 transitions. [2019-10-06 23:20:47,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 294 states. [2019-10-06 23:20:47,860 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 54 [2019-10-06 23:20:47,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-06 23:20:47,865 INFO L225 Difference]: With dead ends: 1181 [2019-10-06 23:20:47,866 INFO L226 Difference]: Without dead ends: 886 [2019-10-06 23:20:47,879 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 154 SyntacticMatches, 1 SemanticMatches, 364 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44461 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=37670, Invalid=95920, Unknown=0, NotChecked=0, Total=133590 [2019-10-06 23:20:47,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2019-10-06 23:20:47,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 742. [2019-10-06 23:20:47,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2019-10-06 23:20:47,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1064 transitions. [2019-10-06 23:20:47,941 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1064 transitions. Word has length 54 [2019-10-06 23:20:47,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-06 23:20:47,942 INFO L462 AbstractCegarLoop]: Abstraction has 742 states and 1064 transitions. [2019-10-06 23:20:47,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 77 states. [2019-10-06 23:20:47,942 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1064 transitions. [2019-10-06 23:20:47,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-06 23:20:47,944 INFO L377 BasicCegarLoop]: Found error trace [2019-10-06 23:20:47,945 INFO L385 BasicCegarLoop]: trace histogram [46, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-06 23:20:48,149 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:20:48,150 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-06 23:20:48,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-06 23:20:48,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1381387049, now seen corresponding path program 7 times [2019-10-06 23:20:48,150 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-06 23:20:48,151 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:20:48,151 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:20:48,151 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:20:48,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-06 23:20:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:20:48,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2019-10-06 23:20:48,445 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:20:48,446 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-06 23:20:48,446 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:20:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:20:48,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 48 conjunts are in the unsatisfiable core [2019-10-06 23:20:48,613 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-06 23:20:49,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2019-10-06 23:20:49,971 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-06 23:20:53,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2019-10-06 23:20:53,687 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-06 23:20:53,688 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-06 23:20:53,688 INFO L169 IcfgInterpreter]: Building call graph [2019-10-06 23:20:53,689 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-06 23:20:53,689 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-06 23:20:53,689 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-06 23:20:53,726 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-06 23:20:53,841 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 77 for LOIs [2019-10-06 23:20:53,852 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-06 23:20:53,855 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-06 23:20:53,855 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-06 23:20:53,855 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (exists ((v_prenex_49 Int) (|v_main_~#a~0.offset_BEFORE_CALL_7| Int) (v_prenex_48 Int) (v_prenex_45 Int) (v_main_~s~0_BEFORE_CALL_7 Int) (v_prenex_44 Int) (v_prenex_47 Int) (|v_main_~#a~0.base_BEFORE_CALL_7| Int) (v_prenex_46 Int) (v_prenex_41 Int) (v_prenex_40 Int) (v_prenex_43 Int) (v_prenex_42 Int) (v_main_~x~0_BEFORE_CALL_7 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_42 100000) (not (<= (select (select |#memory_int| v_prenex_41) (+ v_prenex_40 (* 4 v_prenex_42) (- 4))) (select (select |#memory_int| v_prenex_41) (+ v_prenex_40 (* 4 v_prenex_42))))) (<= v_prenex_42 1)) (and (<= (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45) (- 4))) (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45)))) (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_45 100000) (<= v_prenex_45 1)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7) (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7))))) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7) (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~s~0_BEFORE_CALL_7)))) (< v_main_~x~0_BEFORE_CALL_7 100000) (<= v_main_~x~0_BEFORE_CALL_7 1)) (and (<= (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45) (- 4))) (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45)))) (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_45 100000) (= (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45) (- 4))) (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_47)))) (<= v_prenex_45 1)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7) (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7))))) (< v_main_~x~0_BEFORE_CALL_7 100000) (<= v_main_~x~0_BEFORE_CALL_7 1)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_49 100000) (<= (select (select |#memory_int| v_prenex_48) (+ v_prenex_46 (* 4 v_prenex_49) (- 4))) (select (select |#memory_int| v_prenex_48) (+ v_prenex_46 (* 4 v_prenex_49)))) (<= v_prenex_49 1)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:20:53,855 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:20:53,855 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (exists ((v_prenex_49 Int) (|v_main_~#a~0.offset_BEFORE_CALL_7| Int) (v_prenex_48 Int) (v_prenex_45 Int) (v_main_~s~0_BEFORE_CALL_7 Int) (v_prenex_44 Int) (v_prenex_47 Int) (|v_main_~#a~0.base_BEFORE_CALL_7| Int) (v_prenex_46 Int) (v_prenex_41 Int) (v_prenex_40 Int) (v_prenex_43 Int) (v_prenex_42 Int) (v_main_~x~0_BEFORE_CALL_7 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_42 100000) (not (<= (select (select |#memory_int| v_prenex_41) (+ v_prenex_40 (* 4 v_prenex_42) (- 4))) (select (select |#memory_int| v_prenex_41) (+ v_prenex_40 (* 4 v_prenex_42))))) (<= v_prenex_42 1)) (and (<= (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45) (- 4))) (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45)))) (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_45 100000) (<= v_prenex_45 1)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7) (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7))))) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7) (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~s~0_BEFORE_CALL_7)))) (< v_main_~x~0_BEFORE_CALL_7 100000) (<= v_main_~x~0_BEFORE_CALL_7 1)) (and (<= (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45) (- 4))) (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45)))) (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_45 100000) (= (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45) (- 4))) (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_47)))) (<= v_prenex_45 1)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7) (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7))))) (< v_main_~x~0_BEFORE_CALL_7 100000) (<= v_main_~x~0_BEFORE_CALL_7 1)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_49 100000) (<= (select (select |#memory_int| v_prenex_48) (+ v_prenex_46 (* 4 v_prenex_49) (- 4))) (select (select |#memory_int| v_prenex_48) (+ v_prenex_46 (* 4 v_prenex_49)))) (<= v_prenex_49 1)))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:20:53,855 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-06 23:20:53,856 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (exists ((v_prenex_49 Int) (|v_main_~#a~0.offset_BEFORE_CALL_7| Int) (v_prenex_48 Int) (v_prenex_45 Int) (v_main_~s~0_BEFORE_CALL_7 Int) (v_prenex_44 Int) (v_prenex_47 Int) (|v_main_~#a~0.base_BEFORE_CALL_7| Int) (v_prenex_46 Int) (v_prenex_41 Int) (v_prenex_40 Int) (v_prenex_43 Int) (v_prenex_42 Int) (v_main_~x~0_BEFORE_CALL_7 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_42 100000) (not (<= (select (select |#memory_int| v_prenex_41) (+ v_prenex_40 (* 4 v_prenex_42) (- 4))) (select (select |#memory_int| v_prenex_41) (+ v_prenex_40 (* 4 v_prenex_42))))) (<= v_prenex_42 1)) (and (<= (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45) (- 4))) (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45)))) (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_45 100000) (<= v_prenex_45 1)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7) (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7))))) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7) (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~s~0_BEFORE_CALL_7)))) (< v_main_~x~0_BEFORE_CALL_7 100000) (<= v_main_~x~0_BEFORE_CALL_7 1)) (and (<= (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45) (- 4))) (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45)))) (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_45 100000) (= (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45) (- 4))) (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_47)))) (<= v_prenex_45 1)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7) (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7))))) (< v_main_~x~0_BEFORE_CALL_7 100000) (<= v_main_~x~0_BEFORE_CALL_7 1)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_49 100000) (<= (select (select |#memory_int| v_prenex_48) (+ v_prenex_46 (* 4 v_prenex_49) (- 4))) (select (select |#memory_int| v_prenex_48) (+ v_prenex_46 (* 4 v_prenex_49)))) (<= v_prenex_49 1)))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:20:53,856 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-06 23:20:53,856 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:20:53,856 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:20:53,856 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:20:53,856 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:20:53,856 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-06 23:20:53,857 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-06 23:20:53,857 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-06 23:20:53,857 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-06 23:20:53,857 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((v_prenex_49 Int) (|v_main_~#a~0.offset_BEFORE_CALL_7| Int) (v_prenex_48 Int) (v_prenex_45 Int) (v_main_~s~0_BEFORE_CALL_7 Int) (v_prenex_44 Int) (v_prenex_47 Int) (|v_main_~#a~0.base_BEFORE_CALL_7| Int) (v_prenex_46 Int) (v_prenex_41 Int) (v_prenex_40 Int) (v_prenex_43 Int) (v_prenex_42 Int) (v_main_~x~0_BEFORE_CALL_7 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_42 100000) (not (<= (select (select |#memory_int| v_prenex_41) (+ v_prenex_40 (* 4 v_prenex_42) (- 4))) (select (select |#memory_int| v_prenex_41) (+ v_prenex_40 (* 4 v_prenex_42))))) (<= v_prenex_42 1)) (and (<= (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45) (- 4))) (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45)))) (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_45 100000) (<= v_prenex_45 1)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7) (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7))))) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7) (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~s~0_BEFORE_CALL_7)))) (< v_main_~x~0_BEFORE_CALL_7 100000) (<= v_main_~x~0_BEFORE_CALL_7 1)) (and (<= (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45) (- 4))) (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45)))) (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_45 100000) (= (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_45) (- 4))) (select (select |#memory_int| v_prenex_44) (+ v_prenex_43 (* 4 v_prenex_47)))) (<= v_prenex_45 1)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7) (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_7|) (+ |v_main_~#a~0.offset_BEFORE_CALL_7| (* 4 v_main_~x~0_BEFORE_CALL_7))))) (< v_main_~x~0_BEFORE_CALL_7 100000) (<= v_main_~x~0_BEFORE_CALL_7 1)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_49 100000) (<= (select (select |#memory_int| v_prenex_48) (+ v_prenex_46 (* 4 v_prenex_49) (- 4))) (select (select |#memory_int| v_prenex_48) (+ v_prenex_46 (* 4 v_prenex_49)))) (<= v_prenex_49 1)))) [2019-10-06 23:20:54,579 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-06 23:20:54,579 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 49, 49, 11] total 126 [2019-10-06 23:20:54,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 126 states [2019-10-06 23:20:54,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2019-10-06 23:20:54,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5004, Invalid=10746, Unknown=0, NotChecked=0, Total=15750 [2019-10-06 23:20:54,584 INFO L87 Difference]: Start difference. First operand 742 states and 1064 transitions. Second operand 126 states. [2019-10-06 23:21:57,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-06 23:21:57,925 INFO L93 Difference]: Finished difference Result 2315 states and 3597 transitions. [2019-10-06 23:21:57,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 410 states. [2019-10-06 23:21:57,925 INFO L78 Accepts]: Start accepts. Automaton has 126 states. Word has length 79 [2019-10-06 23:21:57,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-06 23:21:57,935 INFO L225 Difference]: With dead ends: 2315 [2019-10-06 23:21:57,936 INFO L226 Difference]: Without dead ends: 1625 [2019-10-06 23:21:57,955 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 759 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 529 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88326 ImplicationChecksByTransitivity, 41.0s TimeCoverageRelationStatistics Valid=83409, Invalid=198021, Unknown=0, NotChecked=0, Total=281430 [2019-10-06 23:21:57,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1625 states. [2019-10-06 23:21:58,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1625 to 1337. [2019-10-06 23:21:58,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2019-10-06 23:21:58,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1995 transitions. [2019-10-06 23:21:58,075 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1995 transitions. Word has length 79 [2019-10-06 23:21:58,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-06 23:21:58,075 INFO L462 AbstractCegarLoop]: Abstraction has 1337 states and 1995 transitions. [2019-10-06 23:21:58,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 126 states. [2019-10-06 23:21:58,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1995 transitions. [2019-10-06 23:21:58,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-06 23:21:58,078 INFO L377 BasicCegarLoop]: Found error trace [2019-10-06 23:21:58,078 INFO L385 BasicCegarLoop]: trace histogram [94, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-06 23:21:58,289 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:21:58,290 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-06 23:21:58,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-06 23:21:58,291 INFO L82 PathProgramCache]: Analyzing trace with hash -588960410, now seen corresponding path program 8 times [2019-10-06 23:21:58,291 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-06 23:21:58,292 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:21:58,292 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:21:58,292 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:21:58,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-06 23:21:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:21:58,703 INFO L134 CoverageAnalysis]: Checked inductivity of 4675 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 4465 trivial. 0 not checked. [2019-10-06 23:21:58,703 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:21:58,703 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-06 23:21:58,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:21:59,843 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-10-06 23:21:59,843 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-06 23:21:59,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-06 23:21:59,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-06 23:21:59,889 INFO L134 CoverageAnalysis]: Checked inductivity of 4675 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 4465 trivial. 0 not checked. [2019-10-06 23:21:59,889 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-06 23:22:00,444 INFO L134 CoverageAnalysis]: Checked inductivity of 4675 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 4465 trivial. 0 not checked. [2019-10-06 23:22:00,444 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-06 23:22:00,446 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-06 23:22:00,446 INFO L169 IcfgInterpreter]: Building call graph [2019-10-06 23:22:00,446 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-06 23:22:00,447 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-06 23:22:00,447 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-06 23:22:00,480 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-06 23:22:00,601 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 48 for LOIs [2019-10-06 23:22:00,606 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-06 23:22:00,611 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-06 23:22:00,612 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-06 23:22:00,612 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (exists ((v_main_~s~0_BEFORE_CALL_8 Int) (|v_main_~#a~0.base_BEFORE_CALL_8| Int) (v_prenex_52 Int) (v_prenex_51 Int) (v_prenex_50 Int) (v_main_~x~0_BEFORE_CALL_8 Int) (|v_main_~#a~0.offset_BEFORE_CALL_8| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8|)))) (<= v_main_~x~0_BEFORE_CALL_8 1) (< v_main_~x~0_BEFORE_CALL_8 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_main_~s~0_BEFORE_CALL_8) v_prenex_52))) (not (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52)))) (<= v_prenex_51 1) (< v_prenex_51 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8|))) (<= v_main_~x~0_BEFORE_CALL_8 1) (< v_main_~x~0_BEFORE_CALL_8 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52))) (= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_main_~s~0_BEFORE_CALL_8) v_prenex_52))) (<= v_prenex_51 1) (< v_prenex_51 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52)))) (<= v_prenex_51 1) (< v_prenex_51 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52))) (<= v_prenex_51 1) (< v_prenex_51 100000)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:22:00,612 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:22:00,612 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((v_main_~s~0_BEFORE_CALL_8 Int) (|v_main_~#a~0.base_BEFORE_CALL_8| Int) (v_prenex_52 Int) (v_prenex_51 Int) (v_prenex_50 Int) (v_main_~x~0_BEFORE_CALL_8 Int) (|v_main_~#a~0.offset_BEFORE_CALL_8| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8|)))) (<= v_main_~x~0_BEFORE_CALL_8 1) (< v_main_~x~0_BEFORE_CALL_8 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_main_~s~0_BEFORE_CALL_8) v_prenex_52))) (not (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52)))) (<= v_prenex_51 1) (< v_prenex_51 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8|))) (<= v_main_~x~0_BEFORE_CALL_8 1) (< v_main_~x~0_BEFORE_CALL_8 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52))) (= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_main_~s~0_BEFORE_CALL_8) v_prenex_52))) (<= v_prenex_51 1) (< v_prenex_51 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52)))) (<= v_prenex_51 1) (< v_prenex_51 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52))) (<= v_prenex_51 1) (< v_prenex_51 100000)))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:22:00,613 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-06 23:22:00,613 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((v_main_~s~0_BEFORE_CALL_8 Int) (|v_main_~#a~0.base_BEFORE_CALL_8| Int) (v_prenex_52 Int) (v_prenex_51 Int) (v_prenex_50 Int) (v_main_~x~0_BEFORE_CALL_8 Int) (|v_main_~#a~0.offset_BEFORE_CALL_8| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8|)))) (<= v_main_~x~0_BEFORE_CALL_8 1) (< v_main_~x~0_BEFORE_CALL_8 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_main_~s~0_BEFORE_CALL_8) v_prenex_52))) (not (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52)))) (<= v_prenex_51 1) (< v_prenex_51 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8|))) (<= v_main_~x~0_BEFORE_CALL_8 1) (< v_main_~x~0_BEFORE_CALL_8 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52))) (= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_main_~s~0_BEFORE_CALL_8) v_prenex_52))) (<= v_prenex_51 1) (< v_prenex_51 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52)))) (<= v_prenex_51 1) (< v_prenex_51 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52))) (<= v_prenex_51 1) (< v_prenex_51 100000)))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:22:00,613 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-06 23:22:00,613 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:22:00,613 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:22:00,614 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:22:00,614 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:22:00,614 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-06 23:22:00,614 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-06 23:22:00,614 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-06 23:22:00,614 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-06 23:22:00,615 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((v_main_~s~0_BEFORE_CALL_8 Int) (|v_main_~#a~0.base_BEFORE_CALL_8| Int) (v_prenex_52 Int) (v_prenex_51 Int) (v_prenex_50 Int) (v_main_~x~0_BEFORE_CALL_8 Int) (|v_main_~#a~0.offset_BEFORE_CALL_8| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8|)))) (<= v_main_~x~0_BEFORE_CALL_8 1) (< v_main_~x~0_BEFORE_CALL_8 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_main_~s~0_BEFORE_CALL_8) v_prenex_52))) (not (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52)))) (<= v_prenex_51 1) (< v_prenex_51 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_8|) (+ (* 4 v_main_~x~0_BEFORE_CALL_8) |v_main_~#a~0.offset_BEFORE_CALL_8|))) (<= v_main_~x~0_BEFORE_CALL_8 1) (< v_main_~x~0_BEFORE_CALL_8 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52))) (= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_main_~s~0_BEFORE_CALL_8) v_prenex_52))) (<= v_prenex_51 1) (< v_prenex_51 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52)))) (<= v_prenex_51 1) (< v_prenex_51 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52 (- 4))) (select (select |#memory_int| v_prenex_50) (+ (* 4 v_prenex_51) v_prenex_52))) (<= v_prenex_51 1) (< v_prenex_51 100000)))) [2019-10-06 23:22:01,000 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-06 23:22:01,000 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24, 11] total 57 [2019-10-06 23:22:01,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 57 states [2019-10-06 23:22:01,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2019-10-06 23:22:01,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1025, Invalid=2167, Unknown=0, NotChecked=0, Total=3192 [2019-10-06 23:22:01,003 INFO L87 Difference]: Start difference. First operand 1337 states and 1995 transitions. Second operand 57 states. [2019-10-06 23:22:05,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-06 23:22:05,593 INFO L93 Difference]: Finished difference Result 2864 states and 4390 transitions. [2019-10-06 23:22:05,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2019-10-06 23:22:05,594 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 128 [2019-10-06 23:22:05,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-06 23:22:05,601 INFO L225 Difference]: With dead ends: 2864 [2019-10-06 23:22:05,601 INFO L226 Difference]: Without dead ends: 1649 [2019-10-06 23:22:05,607 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4492 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=4552, Invalid=13004, Unknown=0, NotChecked=0, Total=17556 [2019-10-06 23:22:05,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2019-10-06 23:22:05,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1361. [2019-10-06 23:22:05,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1361 states. [2019-10-06 23:22:05,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 2019 transitions. [2019-10-06 23:22:05,728 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 2019 transitions. Word has length 128 [2019-10-06 23:22:05,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-06 23:22:05,730 INFO L462 AbstractCegarLoop]: Abstraction has 1361 states and 2019 transitions. [2019-10-06 23:22:05,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 57 states. [2019-10-06 23:22:05,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 2019 transitions. [2019-10-06 23:22:05,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-06 23:22:05,736 INFO L377 BasicCegarLoop]: Found error trace [2019-10-06 23:22:05,737 INFO L385 BasicCegarLoop]: trace histogram [94, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-06 23:22:05,949 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:22:05,950 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-06 23:22:05,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-06 23:22:05,950 INFO L82 PathProgramCache]: Analyzing trace with hash 2133339526, now seen corresponding path program 9 times [2019-10-06 23:22:05,950 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-06 23:22:05,950 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:22:05,951 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:22:05,951 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:22:05,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-06 23:22:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:22:06,975 INFO L134 CoverageAnalysis]: Checked inductivity of 5368 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 4465 trivial. 0 not checked. [2019-10-06 23:22:06,975 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:22:06,975 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-06 23:22:06,975 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:22:07,249 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-06 23:22:07,250 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-06 23:22:07,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 96 conjunts are in the unsatisfiable core [2019-10-06 23:22:07,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-06 23:22:12,260 INFO L134 CoverageAnalysis]: Checked inductivity of 5368 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2019-10-06 23:22:12,261 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-06 23:22:23,808 INFO L134 CoverageAnalysis]: Checked inductivity of 5368 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2019-10-06 23:22:23,809 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-06 23:22:23,810 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-06 23:22:23,810 INFO L169 IcfgInterpreter]: Building call graph [2019-10-06 23:22:23,811 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-06 23:22:23,811 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-06 23:22:23,811 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-06 23:22:23,830 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-06 23:22:23,972 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 48 for LOIs [2019-10-06 23:22:23,977 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-06 23:22:23,980 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-06 23:22:23,980 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-06 23:22:23,980 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (exists ((v_main_~s~0_BEFORE_CALL_9 Int) (v_prenex_55 Int) (|v_main_~#a~0.base_BEFORE_CALL_9| Int) (v_prenex_54 Int) (v_prenex_53 Int) (v_main_~x~0_BEFORE_CALL_9 Int) (|v_main_~#a~0.offset_BEFORE_CALL_9| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55)))) (= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_main_~s~0_BEFORE_CALL_9) v_prenex_55))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55)))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_main_~s~0_BEFORE_CALL_9) v_prenex_55))) (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~x~0_BEFORE_CALL_9 1) (< v_main_~x~0_BEFORE_CALL_9 100000) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9|))))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9|))) (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~x~0_BEFORE_CALL_9 1) (< v_main_~x~0_BEFORE_CALL_9 100000))))) [2019-10-06 23:22:23,980 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:22:23,981 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (exists ((v_main_~s~0_BEFORE_CALL_9 Int) (v_prenex_55 Int) (|v_main_~#a~0.base_BEFORE_CALL_9| Int) (v_prenex_54 Int) (v_prenex_53 Int) (v_main_~x~0_BEFORE_CALL_9 Int) (|v_main_~#a~0.offset_BEFORE_CALL_9| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55)))) (= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_main_~s~0_BEFORE_CALL_9) v_prenex_55))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55)))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_main_~s~0_BEFORE_CALL_9) v_prenex_55))) (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~x~0_BEFORE_CALL_9 1) (< v_main_~x~0_BEFORE_CALL_9 100000) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9|))))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9|))) (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~x~0_BEFORE_CALL_9 1) (< v_main_~x~0_BEFORE_CALL_9 100000))))) [2019-10-06 23:22:23,981 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-06 23:22:23,981 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (exists ((v_main_~s~0_BEFORE_CALL_9 Int) (v_prenex_55 Int) (|v_main_~#a~0.base_BEFORE_CALL_9| Int) (v_prenex_54 Int) (v_prenex_53 Int) (v_main_~x~0_BEFORE_CALL_9 Int) (|v_main_~#a~0.offset_BEFORE_CALL_9| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55)))) (= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_main_~s~0_BEFORE_CALL_9) v_prenex_55))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55)))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_main_~s~0_BEFORE_CALL_9) v_prenex_55))) (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~x~0_BEFORE_CALL_9 1) (< v_main_~x~0_BEFORE_CALL_9 100000) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9|))))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9|))) (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~x~0_BEFORE_CALL_9 1) (< v_main_~x~0_BEFORE_CALL_9 100000))))) [2019-10-06 23:22:23,981 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-06 23:22:23,981 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-06 23:22:23,982 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:22:23,982 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0))) [2019-10-06 23:22:23,982 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:22:23,982 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-06 23:22:23,982 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-06 23:22:23,982 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-06 23:22:23,983 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-06 23:22:23,983 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((v_main_~s~0_BEFORE_CALL_9 Int) (v_prenex_55 Int) (|v_main_~#a~0.base_BEFORE_CALL_9| Int) (v_prenex_54 Int) (v_prenex_53 Int) (v_main_~x~0_BEFORE_CALL_9 Int) (|v_main_~#a~0.offset_BEFORE_CALL_9| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55)))) (= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_main_~s~0_BEFORE_CALL_9) v_prenex_55))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55)))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_main_~s~0_BEFORE_CALL_9) v_prenex_55))) (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~x~0_BEFORE_CALL_9 1) (< v_main_~x~0_BEFORE_CALL_9 100000) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9|))))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55 (- 4))) (select (select |#memory_int| v_prenex_53) (+ (* 4 v_prenex_54) v_prenex_55))) (<= v_prenex_54 1) (< v_prenex_54 100000)) (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9| (- 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_9|) (+ (* 4 v_main_~x~0_BEFORE_CALL_9) |v_main_~#a~0.offset_BEFORE_CALL_9|))) (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~x~0_BEFORE_CALL_9 1) (< v_main_~x~0_BEFORE_CALL_9 100000)))) [2019-10-06 23:22:25,039 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-06 23:22:25,039 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 97, 97, 11] total 245 [2019-10-06 23:22:25,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 245 states [2019-10-06 23:22:25,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 245 interpolants. [2019-10-06 23:22:25,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19731, Invalid=40049, Unknown=0, NotChecked=0, Total=59780 [2019-10-06 23:22:25,047 INFO L87 Difference]: Start difference. First operand 1361 states and 2019 transitions. Second operand 245 states. [2019-10-06 23:25:39,378 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 17