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-tiling/nr5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:38:55,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:38:55,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:38:55,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:38:55,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:38:55,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:38:55,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:38:55,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:38:55,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:38:55,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:38:55,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:38:55,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:38:55,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:38:55,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:38:55,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:38:55,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:38:55,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:38:55,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:38:55,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:38:55,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:38:55,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:38:55,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:38:55,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:38:55,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:38:55,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:38:55,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:38:55,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:38:55,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:38:55,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:38:55,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:38:55,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:38:55,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:38:55,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:38:55,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:38:55,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:38:55,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:38:55,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:38:55,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:38:55,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:38:55,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:38:55,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:38:55,715 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 [2019-10-13 21:38:55,738 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:38:55,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:38:55,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:38:55,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:38:55,743 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:38:55,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:38:55,744 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:38:55,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:38:55,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:38:55,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:38:55,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:38:55,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:38:55,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:38:55,746 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:38:55,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:38:55,747 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:38:55,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:38:55,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:38:55,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:38:55,748 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:38:55,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:38:55,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:38:55,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:38:55,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:38:55,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:38:55,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:38:55,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:38:55,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:38:55,750 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 [2019-10-13 21:38:56,032 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:38:56,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:38:56,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:38:56,056 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:38:56,056 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:38:56,057 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/nr5.c [2019-10-13 21:38:56,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f711af228/a84b11ebcfde4cd3af633955a830179c/FLAGa0822a1cc [2019-10-13 21:38:56,627 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:38:56,628 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/nr5.c [2019-10-13 21:38:56,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f711af228/a84b11ebcfde4cd3af633955a830179c/FLAGa0822a1cc [2019-10-13 21:38:56,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f711af228/a84b11ebcfde4cd3af633955a830179c [2019-10-13 21:38:57,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:38:57,007 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:38:57,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:38:57,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:38:57,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:38:57,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:38:56" (1/1) ... [2019-10-13 21:38:57,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a57a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:57, skipping insertion in model container [2019-10-13 21:38:57,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:38:56" (1/1) ... [2019-10-13 21:38:57,024 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:38:57,046 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:38:57,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:38:57,241 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:38:57,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:38:57,377 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:38:57,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:57 WrapperNode [2019-10-13 21:38:57,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:38:57,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:38:57,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:38:57,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:38:57,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:57" (1/1) ... [2019-10-13 21:38:57,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:57" (1/1) ... [2019-10-13 21:38:57,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:57" (1/1) ... [2019-10-13 21:38:57,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:57" (1/1) ... [2019-10-13 21:38:57,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:57" (1/1) ... [2019-10-13 21:38:57,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:57" (1/1) ... [2019-10-13 21:38:57,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:57" (1/1) ... [2019-10-13 21:38:57,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:38:57,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:38:57,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:38:57,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:38:57,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:57" (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 [2019-10-13 21:38:57,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:38:57,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:38:57,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 21:38:57,482 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:38:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:38:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 21:38:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 21:38:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:38:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:38:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:38:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:38:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:38:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:38:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:38:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:38:57,929 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:38:57,929 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-13 21:38:57,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:38:57 BoogieIcfgContainer [2019-10-13 21:38:57,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:38:57,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:38:57,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:38:57,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:38:57,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:38:56" (1/3) ... [2019-10-13 21:38:57,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe7bd0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:38:57, skipping insertion in model container [2019-10-13 21:38:57,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:57" (2/3) ... [2019-10-13 21:38:57,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe7bd0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:38:57, skipping insertion in model container [2019-10-13 21:38:57,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:38:57" (3/3) ... [2019-10-13 21:38:57,940 INFO L109 eAbstractionObserver]: Analyzing ICFG nr5.c [2019-10-13 21:38:57,951 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:38:57,960 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:38:57,972 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:38:57,998 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:38:57,998 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:38:57,998 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:38:57,998 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:38:57,999 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:38:57,999 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:38:57,999 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:38:57,999 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:38:58,015 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-13 21:38:58,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 21:38:58,022 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:38:58,023 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:38:58,025 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:38:58,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:38:58,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1436172912, now seen corresponding path program 1 times [2019-10-13 21:38:58,038 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:38:58,038 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195445650] [2019-10-13 21:38:58,039 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:38:58,039 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:38:58,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:38:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:38:58,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:38:58,429 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195445650] [2019-10-13 21:38:58,430 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:38:58,431 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:38:58,432 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981873868] [2019-10-13 21:38:58,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:38:58,438 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:38:58,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:38:58,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:38:58,459 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-10-13 21:38:58,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:38:58,551 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2019-10-13 21:38:58,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:38:58,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-10-13 21:38:58,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:38:58,562 INFO L225 Difference]: With dead ends: 44 [2019-10-13 21:38:58,562 INFO L226 Difference]: Without dead ends: 20 [2019-10-13 21:38:58,566 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:38:58,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-13 21:38:58,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-10-13 21:38:58,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-13 21:38:58,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-10-13 21:38:58,620 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2019-10-13 21:38:58,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:38:58,620 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-10-13 21:38:58,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:38:58,621 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-10-13 21:38:58,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-13 21:38:58,623 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:38:58,624 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:38:58,624 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:38:58,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:38:58,626 INFO L82 PathProgramCache]: Analyzing trace with hash -519328614, now seen corresponding path program 1 times [2019-10-13 21:38:58,626 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:38:58,627 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253191662] [2019-10-13 21:38:58,627 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:38:58,627 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:38:58,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:38:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:38:58,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:38:58,740 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253191662] [2019-10-13 21:38:58,740 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:38:58,740 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:38:58,741 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683566202] [2019-10-13 21:38:58,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:38:58,743 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:38:58,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:38:58,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:38:58,743 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2019-10-13 21:38:58,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:38:58,757 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2019-10-13 21:38:58,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:38:58,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-13 21:38:58,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:38:58,759 INFO L225 Difference]: With dead ends: 31 [2019-10-13 21:38:58,759 INFO L226 Difference]: Without dead ends: 20 [2019-10-13 21:38:58,760 INFO L600 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 [2019-10-13 21:38:58,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-13 21:38:58,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-10-13 21:38:58,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-13 21:38:58,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2019-10-13 21:38:58,768 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15 [2019-10-13 21:38:58,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:38:58,768 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2019-10-13 21:38:58,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:38:58,768 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2019-10-13 21:38:58,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-13 21:38:58,769 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:38:58,769 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:38:58,770 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:38:58,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:38:58,770 INFO L82 PathProgramCache]: Analyzing trace with hash 984169796, now seen corresponding path program 1 times [2019-10-13 21:38:58,771 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:38:58,771 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967722653] [2019-10-13 21:38:58,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:38:58,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:38:58,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:38:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:38:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:38:58,845 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967722653] [2019-10-13 21:38:58,846 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705748114] [2019-10-13 21:38:58,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:38:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:38:58,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 21:38:58,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:38:58,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:38:58,960 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:38:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:38:59,002 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1468940103] [2019-10-13 21:38:59,043 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-13 21:38:59,043 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:38:59,055 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:38:59,072 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:38:59,073 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:38:59,294 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-13 21:38:59,705 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:00,195 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:00,213 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:00,267 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:00,282 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:00,641 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:00,651 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:00,659 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:00,708 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:00,844 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:00,855 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:00,865 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:00,886 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:00,907 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:01,253 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:01,293 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:01,301 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:01,309 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:01,457 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:01,470 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:01,695 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 42 for LOIs [2019-10-13 21:39:01,716 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-13 21:39:01,732 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 21:39:01,733 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 21:39:01,733 INFO L193 IcfgInterpreter]: Reachable states at location L11 satisfy 38#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0) (= |old(#length)| |#length|)) [2019-10-13 21:39:01,734 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 244#(and (<= __VERIFIER_assert_~cond 0) (exists ((v_prenex_6 Int) (v_prenex_5 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_1| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (not (<= 2 (select (select |#memory_int| v_prenex_5) 0))) (= 0 (select (select |#memory_int| v_prenex_5) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (not (<= 2 (select (select |#memory_int| v_prenex_6) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (not (= 0 (select (select |#memory_int| v_prenex_6) 0))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_1|) 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 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)) [2019-10-13 21:39:01,734 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 230#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~j~0 5) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-13 21:39:01,735 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 253#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-13 21:39:01,735 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 180#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= 0 main_~i~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= main_~i~0 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0)) [2019-10-13 21:39:01,735 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 239#(and (exists ((v_prenex_6 Int) (v_prenex_5 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_1| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (not (<= 2 (select (select |#memory_int| v_prenex_5) 0))) (= 0 (select (select |#memory_int| v_prenex_5) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (not (<= 2 (select (select |#memory_int| v_prenex_6) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (not (= 0 (select (select |#memory_int| v_prenex_6) 0))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_1|) 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:39:01,736 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= ~CELLCOUNT~0 0) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:39:01,737 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 ~CELLCOUNT~0) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (<= ~CELLCOUNT~0 0) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= |old(#length)| |#length|)) [2019-10-13 21:39:01,737 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 258#(and (= ~CELLCOUNT~0 0) (= |#valid| (store |old(#valid)| 0 0)) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:39:01,737 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 188#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= main_~i~0 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0)) [2019-10-13 21:39:01,738 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 249#(and (<= __VERIFIER_assert_~cond 0) (exists ((v_prenex_6 Int) (v_prenex_5 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_1| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (not (<= 2 (select (select |#memory_int| v_prenex_5) 0))) (= 0 (select (select |#memory_int| v_prenex_5) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (not (<= 2 (select (select |#memory_int| v_prenex_6) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (not (= 0 (select (select |#memory_int| v_prenex_6) 0))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_1|) 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 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)) [2019-10-13 21:39:01,738 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 21:39:01,738 INFO L193 IcfgInterpreter]: Reachable states at location L19 satisfy 43#(and (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (<= 1 main_~DEFAULTVALUE~0) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0)) [2019-10-13 21:39:01,739 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 234#(exists ((v_prenex_6 Int) (v_prenex_5 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_1| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (not (<= 2 (select (select |#memory_int| v_prenex_5) 0))) (= 0 (select (select |#memory_int| v_prenex_5) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (not (<= 2 (select (select |#memory_int| v_prenex_6) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (not (= 0 (select (select |#memory_int| v_prenex_6) 0))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_1|) 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-13 21:39:01,740 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 175#(or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (<= 1 main_~i~0) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (<= main_~i~0 1) (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (= main_~i~0 1) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (<= 1 main_~DEFAULTVALUE~0) (not (= (ite (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) 1 0) 0)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) [2019-10-13 21:39:02,206 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-13 21:39:02,354 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 23 [2019-10-13 21:39:02,740 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 21:39:02,740 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 12] total 18 [2019-10-13 21:39:02,740 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692365052] [2019-10-13 21:39:02,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:39:02,742 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:39:02,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:39:02,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:39:02,744 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 18 states. [2019-10-13 21:39:03,001 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-10-13 21:39:03,141 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-10-13 21:39:03,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:39:03,722 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2019-10-13 21:39:03,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-13 21:39:03,723 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 16 [2019-10-13 21:39:03,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:39:03,724 INFO L225 Difference]: With dead ends: 45 [2019-10-13 21:39:03,724 INFO L226 Difference]: Without dead ends: 33 [2019-10-13 21:39:03,725 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2019-10-13 21:39:03,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-13 21:39:03,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 23. [2019-10-13 21:39:03,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-13 21:39:03,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2019-10-13 21:39:03,741 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 16 [2019-10-13 21:39:03,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:39:03,741 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2019-10-13 21:39:03,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:39:03,741 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2019-10-13 21:39:03,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-13 21:39:03,743 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:39:03,743 INFO L380 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:39:03,947 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:39:03,948 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:39:03,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:39:03,949 INFO L82 PathProgramCache]: Analyzing trace with hash 608143130, now seen corresponding path program 2 times [2019-10-13 21:39:03,949 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:39:03,950 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322803307] [2019-10-13 21:39:03,950 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:39:03,950 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:39:03,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:39:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:39:04,081 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:39:04,081 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322803307] [2019-10-13 21:39:04,082 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286408150] [2019-10-13 21:39:04,082 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:39:04,141 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-10-13 21:39:04,141 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 21:39:04,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:39:04,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:39:04,149 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:39:04,149 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:39:04,185 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:39:04,185 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [790136595] [2019-10-13 21:39:04,188 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-13 21:39:04,188 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:39:04,189 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:39:04,189 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:39:04,190 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:39:04,246 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 25 for LOIs [2019-10-13 21:39:04,406 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:04,636 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:04,665 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:04,703 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:04,713 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:04,986 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:05,040 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:05,047 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:05,054 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:05,140 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:05,158 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:05,171 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:05,208 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:05,239 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:05,585 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:05,653 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:05,667 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:05,680 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:05,766 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:05,776 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:06,001 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 42 for LOIs [2019-10-13 21:39:06,013 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-13 21:39:06,019 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 21:39:06,020 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 21:39:06,020 INFO L193 IcfgInterpreter]: Reachable states at location L11 satisfy 38#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0) (= |old(#length)| |#length|)) [2019-10-13 21:39:06,021 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 244#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((v_prenex_15 Int) (v_prenex_14 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_2| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (<= 2 (select (select |#memory_int| v_prenex_14) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (<= 2 (select (select |#memory_int| v_prenex_15) 0))) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (= 0 (select (select |#memory_int| v_prenex_15) 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 0))) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (not (= 0 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 0)))))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:39:06,025 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 230#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~j~0 5) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-13 21:39:06,025 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 253#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-13 21:39:06,026 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 180#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= 0 main_~i~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= main_~i~0 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0)) [2019-10-13 21:39:06,026 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 239#(and (exists ((v_prenex_15 Int) (v_prenex_14 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_2| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (<= 2 (select (select |#memory_int| v_prenex_14) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (<= 2 (select (select |#memory_int| v_prenex_15) 0))) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (= 0 (select (select |#memory_int| v_prenex_15) 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 0))) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (not (= 0 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 0)))))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:39:06,026 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= ~CELLCOUNT~0 0) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:39:06,027 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |old(~CELLCOUNT~0)|) (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (<= ~CELLCOUNT~0 0) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= |old(#length)| |#length|)) [2019-10-13 21:39:06,027 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 258#(and (= ~CELLCOUNT~0 0) (= |#valid| (store |old(#valid)| 0 0)) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:39:06,028 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 188#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= main_~i~0 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0)) [2019-10-13 21:39:06,028 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 249#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((v_prenex_15 Int) (v_prenex_14 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_2| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (<= 2 (select (select |#memory_int| v_prenex_14) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (<= 2 (select (select |#memory_int| v_prenex_15) 0))) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (= 0 (select (select |#memory_int| v_prenex_15) 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 0))) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (not (= 0 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 0)))))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:39:06,029 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 21:39:06,029 INFO L193 IcfgInterpreter]: Reachable states at location L19 satisfy 43#(and (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (<= 1 main_~DEFAULTVALUE~0) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0)) [2019-10-13 21:39:06,029 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 234#(exists ((v_prenex_15 Int) (v_prenex_14 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_2| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (<= 2 (select (select |#memory_int| v_prenex_14) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (<= 2 (select (select |#memory_int| v_prenex_15) 0))) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (= 0 (select (select |#memory_int| v_prenex_15) 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 0))) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (not (= 0 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 0)))))) [2019-10-13 21:39:06,030 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 175#(or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (<= 1 main_~i~0) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (<= main_~i~0 1) (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (= main_~i~0 1) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (<= 1 main_~DEFAULTVALUE~0) (not (= (ite (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) 1 0) 0)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) [2019-10-13 21:39:06,472 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-13 21:39:06,888 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 21:39:06,888 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 12] total 19 [2019-10-13 21:39:06,889 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030084749] [2019-10-13 21:39:06,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:39:06,890 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:39:06,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:39:06,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:39:06,893 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 19 states. [2019-10-13 21:39:07,161 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-10-13 21:39:07,303 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-10-13 21:39:07,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:39:07,979 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2019-10-13 21:39:07,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 21:39:07,980 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 19 [2019-10-13 21:39:07,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:39:07,981 INFO L225 Difference]: With dead ends: 49 [2019-10-13 21:39:07,981 INFO L226 Difference]: Without dead ends: 34 [2019-10-13 21:39:07,982 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 41 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2019-10-13 21:39:07,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-13 21:39:07,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 24. [2019-10-13 21:39:07,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-13 21:39:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2019-10-13 21:39:07,991 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 19 [2019-10-13 21:39:07,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:39:07,991 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2019-10-13 21:39:07,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:39:07,991 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2019-10-13 21:39:07,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-13 21:39:07,992 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:39:07,992 INFO L380 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:39:08,207 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:39:08,207 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:39:08,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:39:08,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1576055492, now seen corresponding path program 3 times [2019-10-13 21:39:08,208 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:39:08,208 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867675240] [2019-10-13 21:39:08,208 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:39:08,209 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:39:08,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:39:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:39:08,759 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:39:08,760 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867675240] [2019-10-13 21:39:08,760 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254554051] [2019-10-13 21:39:08,760 INFO L92 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 [2019-10-13 21:39:08,826 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-13 21:39:08,827 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 21:39:08,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 32 conjunts are in the unsatisfiable core [2019-10-13 21:39:08,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:39:08,896 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:08,979 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:09,074 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:09,270 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:09,509 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:39:09,510 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:39:13,614 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 31 [2019-10-13 21:39:13,837 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 30 [2019-10-13 21:39:14,060 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:39:14,060 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [792502382] [2019-10-13 21:39:14,064 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-13 21:39:14,064 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:39:14,065 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:39:14,065 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:39:14,065 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:39:14,102 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-13 21:39:14,251 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:14,622 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:14,635 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:14,650 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:14,699 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:15,000 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:15,016 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:15,025 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:15,068 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:15,137 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:15,143 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:15,412 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:15,432 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:15,438 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:15,444 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:15,555 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:15,563 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:15,719 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 42 for LOIs [2019-10-13 21:39:15,729 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-13 21:39:15,736 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 21:39:15,736 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 21:39:15,736 INFO L193 IcfgInterpreter]: Reachable states at location L11 satisfy 38#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0) (= |old(#length)| |#length|)) [2019-10-13 21:39:15,737 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 247#(and (exists ((|v_main_~#volArray~0.base_BEFORE_CALL_3| Int) (v_prenex_32 Int) (v_prenex_31 Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (not (= 0 (select (select |#memory_int| v_prenex_32) 0))) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (not (<= 2 (select (select |#memory_int| v_prenex_32) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (= 0 (select (select |#memory_int| v_prenex_31) 0)) (not (<= 2 (select (select |#memory_int| v_prenex_31) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_3|) 0)) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 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)) [2019-10-13 21:39:15,737 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 233#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~j~0 5) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-13 21:39:15,738 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 256#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-13 21:39:15,738 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 183#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= 0 main_~i~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= main_~i~0 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0)) [2019-10-13 21:39:15,738 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 242#(and (exists ((|v_main_~#volArray~0.base_BEFORE_CALL_3| Int) (v_prenex_32 Int) (v_prenex_31 Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (not (= 0 (select (select |#memory_int| v_prenex_32) 0))) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (not (<= 2 (select (select |#memory_int| v_prenex_32) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (= 0 (select (select |#memory_int| v_prenex_31) 0)) (not (<= 2 (select (select |#memory_int| v_prenex_31) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_3|) 0)) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:39:15,739 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= ~CELLCOUNT~0 0) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:39:15,739 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 ~CELLCOUNT~0) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (<= ~CELLCOUNT~0 0) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= |old(#length)| |#length|)) [2019-10-13 21:39:15,739 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 261#(and (= ~CELLCOUNT~0 0) (= |#valid| (store |old(#valid)| 0 0)) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:39:15,740 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 191#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= main_~i~0 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0)) [2019-10-13 21:39:15,743 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 252#(and (exists ((|v_main_~#volArray~0.base_BEFORE_CALL_3| Int) (v_prenex_32 Int) (v_prenex_31 Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (not (= 0 (select (select |#memory_int| v_prenex_32) 0))) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (not (<= 2 (select (select |#memory_int| v_prenex_32) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (= 0 (select (select |#memory_int| v_prenex_31) 0)) (not (<= 2 (select (select |#memory_int| v_prenex_31) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_3|) 0)) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 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)) [2019-10-13 21:39:15,744 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 21:39:15,744 INFO L193 IcfgInterpreter]: Reachable states at location L19 satisfy 43#(and (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (<= 1 main_~DEFAULTVALUE~0) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0)) [2019-10-13 21:39:15,744 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 237#(exists ((|v_main_~#volArray~0.base_BEFORE_CALL_3| Int) (v_prenex_32 Int) (v_prenex_31 Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (not (= 0 (select (select |#memory_int| v_prenex_32) 0))) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (not (<= 2 (select (select |#memory_int| v_prenex_32) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (= 0 (select (select |#memory_int| v_prenex_31) 0)) (not (<= 2 (select (select |#memory_int| v_prenex_31) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_3|) 0)) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-13 21:39:15,744 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 178#(or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (<= 1 main_~i~0) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (<= main_~i~0 1) (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (= main_~i~0 1) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (<= 1 main_~DEFAULTVALUE~0) (not (= (ite (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) 1 0) 0)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) [2019-10-13 21:39:16,386 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-13 21:39:17,039 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 21:39:17,040 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 13, 12] total 43 [2019-10-13 21:39:17,040 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569908815] [2019-10-13 21:39:17,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-10-13 21:39:17,041 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:39:17,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-10-13 21:39:17,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1587, Unknown=2, NotChecked=0, Total=1806 [2019-10-13 21:39:17,043 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 43 states. [2019-10-13 21:39:17,391 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-10-13 21:39:18,470 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-10-13 21:39:18,640 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-10-13 21:39:18,806 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-10-13 21:39:20,232 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-10-13 21:39:20,394 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-10-13 21:39:20,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:39:20,854 INFO L93 Difference]: Finished difference Result 61 states and 71 transitions. [2019-10-13 21:39:20,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-10-13 21:39:20,854 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 20 [2019-10-13 21:39:20,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:39:20,856 INFO L225 Difference]: With dead ends: 61 [2019-10-13 21:39:20,857 INFO L226 Difference]: Without dead ends: 59 [2019-10-13 21:39:20,859 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=617, Invalid=4211, Unknown=2, NotChecked=0, Total=4830 [2019-10-13 21:39:20,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-10-13 21:39:20,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 43. [2019-10-13 21:39:20,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-13 21:39:20,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2019-10-13 21:39:20,876 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 20 [2019-10-13 21:39:20,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:39:20,876 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2019-10-13 21:39:20,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-10-13 21:39:20,876 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2019-10-13 21:39:20,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-13 21:39:20,878 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:39:20,878 INFO L380 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:39:21,082 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:39:21,083 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:39:21,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:39:21,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1455444799, now seen corresponding path program 1 times [2019-10-13 21:39:21,084 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:39:21,085 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808127940] [2019-10-13 21:39:21,085 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:39:21,085 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:39:21,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:39:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:39:21,997 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:39:21,997 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808127940] [2019-10-13 21:39:21,997 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957697990] [2019-10-13 21:39:21,997 INFO L94 rtionOrderModulation]: Keeping assertion order 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 [2019-10-13 21:39:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:39:22,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 48 conjunts are in the unsatisfiable core [2019-10-13 21:39:22,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:39:22,125 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:22,203 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:22,497 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:22,800 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:23,089 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:23,261 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:23,718 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:26,589 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:39:26,589 INFO L321 TraceCheckSpWp]: Computing backward predicates...