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/nr2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 00:41:13,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 00:41:13,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 00:41:13,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 00:41:13,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 00:41:13,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 00:41:13,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 00:41:13,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 00:41:13,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 00:41:13,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 00:41:13,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 00:41:13,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 00:41:13,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 00:41:13,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 00:41:13,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 00:41:13,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 00:41:13,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 00:41:13,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 00:41:13,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 00:41:13,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 00:41:13,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 00:41:13,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 00:41:13,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 00:41:13,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 00:41:13,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 00:41:13,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 00:41:13,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 00:41:13,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 00:41:13,126 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 00:41:13,153 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 00:41:13,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 00:41:13,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 00:41:13,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 00:41:13,156 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 00:41:13,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 00:41:13,157 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 00:41:13,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 00:41:13,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 00:41:13,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 00:41:13,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 00:41:13,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 00:41:13,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 00:41:13,159 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 00:41:13,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 00:41:13,160 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 00:41:13,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 00:41:13,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 00:41:13,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 00:41:13,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 00:41:13,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 00:41:13,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 00:41:13,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 00:41:13,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 00:41:13,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 00:41:13,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 00:41:13,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 00:41:13,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 00:41:13,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 00:41:13,479 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 00:41:13,497 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 00:41:13,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 00:41:13,504 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 00:41:13,504 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 00:41:13,505 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/nr2.c [2019-10-07 00:41:13,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72392daab/d495bb4a558844018970cd82cdf83d55/FLAG5375a304f [2019-10-07 00:41:14,062 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 00:41:14,064 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/nr2.c [2019-10-07 00:41:14,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72392daab/d495bb4a558844018970cd82cdf83d55/FLAG5375a304f [2019-10-07 00:41:14,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72392daab/d495bb4a558844018970cd82cdf83d55 [2019-10-07 00:41:14,458 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 00:41:14,459 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 00:41:14,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 00:41:14,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 00:41:14,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 00:41:14,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:41:14" (1/1) ... [2019-10-07 00:41:14,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d002693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:41:14, skipping insertion in model container [2019-10-07 00:41:14,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:41:14" (1/1) ... [2019-10-07 00:41:14,478 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 00:41:14,497 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 00:41:14,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:41:14,704 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 00:41:14,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:41:14,834 INFO L192 MainTranslator]: Completed translation [2019-10-07 00:41:14,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:41:14 WrapperNode [2019-10-07 00:41:14,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 00:41:14,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 00:41:14,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 00:41:14,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 00:41:14,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:41:14" (1/1) ... [2019-10-07 00:41:14,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:41:14" (1/1) ... [2019-10-07 00:41:14,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:41:14" (1/1) ... [2019-10-07 00:41:14,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:41:14" (1/1) ... [2019-10-07 00:41:14,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:41:14" (1/1) ... [2019-10-07 00:41:14,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:41:14" (1/1) ... [2019-10-07 00:41:14,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:41:14" (1/1) ... [2019-10-07 00:41:14,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 00:41:14,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 00:41:14,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 00:41:14,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 00:41:14,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:41:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 00:41:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 00:41:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 00:41:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 00:41:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 00:41:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 00:41:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 00:41:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 00:41:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 00:41:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 00:41:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 00:41:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 00:41:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 00:41:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 00:41:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 00:41:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 00:41:15,376 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 00:41:15,377 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-07 00:41:15,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:41:15 BoogieIcfgContainer [2019-10-07 00:41:15,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 00:41:15,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 00:41:15,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 00:41:15,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 00:41:15,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:41:14" (1/3) ... [2019-10-07 00:41:15,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676750d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:41:15, skipping insertion in model container [2019-10-07 00:41:15,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:41:14" (2/3) ... [2019-10-07 00:41:15,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676750d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:41:15, skipping insertion in model container [2019-10-07 00:41:15,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:41:15" (3/3) ... [2019-10-07 00:41:15,385 INFO L109 eAbstractionObserver]: Analyzing ICFG nr2.c [2019-10-07 00:41:15,393 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 00:41:15,401 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 00:41:15,413 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 00:41:15,440 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 00:41:15,440 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 00:41:15,440 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 00:41:15,440 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 00:41:15,441 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 00:41:15,441 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 00:41:15,441 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 00:41:15,441 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 00:41:15,458 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-07 00:41:15,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-07 00:41:15,464 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:41:15,465 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:41:15,466 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:41:15,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:41:15,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1436172912, now seen corresponding path program 1 times [2019-10-07 00:41:15,479 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:41:15,480 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:15,480 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:15,480 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:15,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:41:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:41:15,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:41:15,738 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:15,739 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:41:15,740 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 00:41:15,744 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 00:41:15,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 00:41:15,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 00:41:15,767 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-10-07 00:41:15,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:41:15,910 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2019-10-07 00:41:15,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 00:41:15,913 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-10-07 00:41:15,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:41:15,924 INFO L225 Difference]: With dead ends: 44 [2019-10-07 00:41:15,924 INFO L226 Difference]: Without dead ends: 20 [2019-10-07 00:41:15,935 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 00:41:15,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-07 00:41:15,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-10-07 00:41:15,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-07 00:41:15,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-10-07 00:41:15,974 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2019-10-07 00:41:15,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:41:15,975 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-10-07 00:41:15,975 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 00:41:15,975 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-10-07 00:41:15,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-07 00:41:15,976 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:41:15,977 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:41:15,977 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:41:15,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:41:15,978 INFO L82 PathProgramCache]: Analyzing trace with hash -519328614, now seen corresponding path program 1 times [2019-10-07 00:41:15,978 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:41:15,978 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:15,978 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:15,979 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:15,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:41:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:41:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:41:16,073 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:16,074 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:41:16,074 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 00:41:16,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 00:41:16,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 00:41:16,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:41:16,077 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2019-10-07 00:41:16,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:41:16,092 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2019-10-07 00:41:16,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 00:41:16,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-07 00:41:16,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:41:16,094 INFO L225 Difference]: With dead ends: 31 [2019-10-07 00:41:16,094 INFO L226 Difference]: Without dead ends: 20 [2019-10-07 00:41:16,095 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:41:16,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-07 00:41:16,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-10-07 00:41:16,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-07 00:41:16,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2019-10-07 00:41:16,102 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15 [2019-10-07 00:41:16,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:41:16,102 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2019-10-07 00:41:16,103 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 00:41:16,103 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2019-10-07 00:41:16,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-07 00:41:16,104 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:41:16,104 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:41:16,104 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:41:16,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:41:16,105 INFO L82 PathProgramCache]: Analyzing trace with hash 984169796, now seen corresponding path program 1 times [2019-10-07 00:41:16,105 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:41:16,106 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:16,106 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:16,106 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:16,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:41:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:41:16,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:41:16,179 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:16,179 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:41:16,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:41:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:41:16,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 00:41:16,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:41:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:41:16,289 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:41:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:41:16,314 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:41:16,359 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-07 00:41:16,359 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:41:16,366 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:41:16,373 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:41:16,374 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:41:16,577 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:41:16,939 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:17,342 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:17,676 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:17,689 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:17,701 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:17,758 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:17,862 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:17,920 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:17,931 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:17,961 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:17,970 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:18,290 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:18,301 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:18,310 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:18,360 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:18,465 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:18,476 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:18,488 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:18,511 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:18,526 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:18,704 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 42 for LOIs [2019-10-07 00:41:18,716 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:41:18,721 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:41:18,722 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:41:18,722 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|)) [2019-10-07 00:41:18,723 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 241#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (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| 0) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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)) [2019-10-07 00:41:18,723 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 227#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:41:18,723 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 250#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:41:18,723 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)) [2019-10-07 00:41:18,724 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 236#(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| 0) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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)) [2019-10-07 00:41:18,724 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)) [2019-10-07 00:41:18,724 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|)) [2019-10-07 00:41:18,725 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 255#(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)) [2019-10-07 00:41:18,725 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)) [2019-10-07 00:41:18,725 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:41:18,726 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 246#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (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| 0) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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)) [2019-10-07 00:41:18,726 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:41:18,726 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 231#(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| 0) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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)))) [2019-10-07 00:41:18,727 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 175#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:41:19,201 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:41:19,640 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:41:19,640 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 12] total 16 [2019-10-07 00:41:19,642 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-07 00:41:19,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-07 00:41:19,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2019-10-07 00:41:19,643 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 16 states. [2019-10-07 00:41:19,947 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-10-07 00:41:20,087 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-10-07 00:41:20,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:41:20,560 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2019-10-07 00:41:20,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-07 00:41:20,560 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 16 [2019-10-07 00:41:20,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:41:20,561 INFO L225 Difference]: With dead ends: 43 [2019-10-07 00:41:20,561 INFO L226 Difference]: Without dead ends: 31 [2019-10-07 00:41:20,563 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2019-10-07 00:41:20,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-07 00:41:20,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 21. [2019-10-07 00:41:20,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-07 00:41:20,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2019-10-07 00:41:20,570 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 16 [2019-10-07 00:41:20,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:41:20,570 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2019-10-07 00:41:20,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-07 00:41:20,570 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2019-10-07 00:41:20,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-07 00:41:20,571 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:41:20,571 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:41:20,782 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:41:20,783 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:41:20,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:41:20,783 INFO L82 PathProgramCache]: Analyzing trace with hash 347980250, now seen corresponding path program 2 times [2019-10-07 00:41:20,783 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:41:20,784 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:20,784 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:20,784 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:20,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:41:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:41:21,239 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:41:21,240 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:21,240 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:41:21,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:41:21,308 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-07 00:41:21,309 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:41:21,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-07 00:41:21,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:41:21,423 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:41:21,602 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:41:21,965 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:41:21,965 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:41:21,967 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-07 00:41:21,967 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:41:21,968 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:41:21,969 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:41:21,969 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:41:22,006 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 25 for LOIs [2019-10-07 00:41:22,125 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:22,393 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:22,649 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:22,741 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:22,751 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:22,760 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:22,780 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:22,789 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:23,031 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:23,110 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:23,129 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:23,137 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:23,165 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:23,173 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:23,327 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 42 for LOIs [2019-10-07 00:41:23,337 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:41:23,342 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:41:23,342 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:41:23,343 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|)) [2019-10-07 00:41:23,343 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 241#(and (exists ((v_prenex_16 Int) (v_prenex_17 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_2| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= 2 (select (select |#memory_int| v_prenex_16) 0)) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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 (select (select |#memory_int| v_prenex_17) 0)) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (not (<= 2 (select (select |#memory_int| v_prenex_17) 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) (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) (not (= 0 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 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)) [2019-10-07 00:41:23,344 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 227#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:41:23,344 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 250#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:41:23,344 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)) [2019-10-07 00:41:23,344 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 236#(and (exists ((v_prenex_16 Int) (v_prenex_17 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_2| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= 2 (select (select |#memory_int| v_prenex_16) 0)) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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 (select (select |#memory_int| v_prenex_17) 0)) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (not (<= 2 (select (select |#memory_int| v_prenex_17) 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) (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) (not (= 0 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 0))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:41:23,345 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)) [2019-10-07 00:41:23,345 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|)) [2019-10-07 00:41:23,345 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 255#(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)) [2019-10-07 00:41:23,345 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)) [2019-10-07 00:41:23,346 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:41:23,346 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 246#(and (exists ((v_prenex_16 Int) (v_prenex_17 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_2| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= 2 (select (select |#memory_int| v_prenex_16) 0)) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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 (select (select |#memory_int| v_prenex_17) 0)) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (not (<= 2 (select (select |#memory_int| v_prenex_17) 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) (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) (not (= 0 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 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)) [2019-10-07 00:41:23,346 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:41:23,347 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 231#(exists ((v_prenex_16 Int) (v_prenex_17 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_2| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= 2 (select (select |#memory_int| v_prenex_16) 0)) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~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 (select (select |#memory_int| v_prenex_17) 0)) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (not (<= 2 (select (select |#memory_int| v_prenex_17) 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) (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) (not (= 0 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 0))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:41:23,347 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 175#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (= 2 main_~MINVAL~0) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (= main_~i~0 1) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (< 1 ~CELLCOUNT~0) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 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_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:41:24,055 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:41:24,267 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 26 [2019-10-07 00:41:24,679 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:41:24,679 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 10, 12] total 34 [2019-10-07 00:41:24,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-10-07 00:41:24,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-10-07 00:41:24,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1000, Unknown=0, NotChecked=0, Total=1122 [2019-10-07 00:41:24,681 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 34 states. [2019-10-07 00:41:25,144 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-10-07 00:41:25,454 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-10-07 00:41:27,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:41:27,040 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2019-10-07 00:41:27,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-07 00:41:27,041 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 17 [2019-10-07 00:41:27,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:41:27,044 INFO L225 Difference]: With dead ends: 47 [2019-10-07 00:41:27,046 INFO L226 Difference]: Without dead ends: 45 [2019-10-07 00:41:27,048 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=316, Invalid=2336, Unknown=0, NotChecked=0, Total=2652 [2019-10-07 00:41:27,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-07 00:41:27,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 27. [2019-10-07 00:41:27,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-07 00:41:27,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2019-10-07 00:41:27,067 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 17 [2019-10-07 00:41:27,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:41:27,067 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2019-10-07 00:41:27,067 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-10-07 00:41:27,067 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2019-10-07 00:41:27,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-07 00:41:27,068 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:41:27,069 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:41:27,272 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:41:27,273 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:41:27,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:41:27,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1233243831, now seen corresponding path program 1 times [2019-10-07 00:41:27,274 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:41:27,274 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:27,274 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:27,275 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:41:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:41:27,473 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:41:27,474 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:27,474 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:41:27,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-10-07 00:41:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:41:27,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-07 00:41:27,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:41:27,633 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:29,852 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:41:29,853 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:41:34,354 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:41:34,354 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:41:34,356 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:41:34,356 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:41:34,357 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:41:34,357 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:41:34,357 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:41:34,397 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:41:34,506 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:34,767 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:34,930 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:35,959 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:36,019 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:36,027 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:36,053 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:36,060 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:36,088 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:36,181 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:41:36,224 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:41:36,229 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:41:36,230 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:41:36,230 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|)) [2019-10-07 00:41:36,230 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 574#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:41:36,230 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 550#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:41:36,231 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 583#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:41:36,231 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 569#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:41:36,231 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 564#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:41:36,232 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 451#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= main_~i~0 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:41:36,232 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 559#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:41:36,232 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 512#(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) (<= 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)) [2019-10-07 00:41:36,232 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)) [2019-10-07 00:41:36,232 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|)) [2019-10-07 00:41:36,233 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 385#(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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= main_~i~0 2147483647) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:41:36,233 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 588#(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)) [2019-10-07 00:41:36,233 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:41:36,233 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 579#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:41:36,234 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:41:36,234 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 554#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:41:36,234 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 163#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:41:36,764 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:41:37,173 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:41:37,664 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:41:37,664 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 12, 14] total 42 [2019-10-07 00:41:37,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-10-07 00:41:37,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-10-07 00:41:37,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1543, Unknown=3, NotChecked=0, Total=1722 [2019-10-07 00:41:37,667 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 42 states. [2019-10-07 00:41:37,936 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2019-10-07 00:41:38,096 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2019-10-07 00:41:40,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:41:40,165 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2019-10-07 00:41:40,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-07 00:41:40,166 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 24 [2019-10-07 00:41:40,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:41:40,168 INFO L225 Difference]: With dead ends: 42 [2019-10-07 00:41:40,168 INFO L226 Difference]: Without dead ends: 40 [2019-10-07 00:41:40,171 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1137 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=458, Invalid=3321, Unknown=3, NotChecked=0, Total=3782 [2019-10-07 00:41:40,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-07 00:41:40,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 32. [2019-10-07 00:41:40,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-07 00:41:40,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2019-10-07 00:41:40,181 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 24 [2019-10-07 00:41:40,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:41:40,181 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2019-10-07 00:41:40,181 INFO L463 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-10-07 00:41:40,181 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2019-10-07 00:41:40,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-07 00:41:40,183 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:41:40,183 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:41:40,387 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:41:40,388 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:41:40,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:41:40,389 INFO L82 PathProgramCache]: Analyzing trace with hash 733740858, now seen corresponding path program 2 times [2019-10-07 00:41:40,389 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:41:40,389 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:40,389 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:40,390 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:40,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:41:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:41:40,652 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-07 00:41:40,652 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:40,652 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:41:40,653 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2019-10-07 00:41:40,740 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-07 00:41:40,741 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:41:40,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-07 00:41:40,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:41:40,909 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-07 00:41:40,909 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:41:40,993 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-07 00:41:40,994 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:41:40,995 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:41:40,995 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:41:40,996 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:41:40,996 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:41:40,997 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:41:41,026 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 25 for LOIs [2019-10-07 00:41:41,123 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,346 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,517 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,542 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,550 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,555 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,599 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,610 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,620 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,649 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,667 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,734 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,744 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,765 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,811 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:41,819 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:42,730 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:42,836 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:41:42,869 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:41:42,873 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:41:42,873 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:41:42,874 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|)) [2019-10-07 00:41:42,874 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 575#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:41:42,874 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 551#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:41:42,874 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 584#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:41:42,874 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 570#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:41:42,875 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 565#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:41:42,875 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 464#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= main_~i~0 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:41:42,875 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 560#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:41:42,875 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 525#(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) (<= 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)) [2019-10-07 00:41:42,875 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)) [2019-10-07 00:41:42,876 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|)) [2019-10-07 00:41:42,876 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 398#(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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= main_~i~0 2147483647) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:41:42,876 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 589#(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)) [2019-10-07 00:41:42,876 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:41:42,876 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 580#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:41:42,877 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:41:42,877 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 555#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:41:42,877 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 176#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (= 2 main_~MINVAL~0) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (= main_~i~0 1) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (< 1 ~CELLCOUNT~0) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 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_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:41:43,311 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:41:43,645 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:41:44,088 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:41:44,088 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 7, 14] total 33 [2019-10-07 00:41:44,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-10-07 00:41:44,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-10-07 00:41:44,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=920, Unknown=0, NotChecked=0, Total=1056 [2019-10-07 00:41:44,091 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 33 states. [2019-10-07 00:41:44,372 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2019-10-07 00:41:44,544 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-10-07 00:41:45,223 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2019-10-07 00:41:45,832 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2019-10-07 00:41:46,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:41:46,657 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2019-10-07 00:41:46,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-10-07 00:41:46,657 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 31 [2019-10-07 00:41:46,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:41:46,659 INFO L225 Difference]: With dead ends: 65 [2019-10-07 00:41:46,659 INFO L226 Difference]: Without dead ends: 41 [2019-10-07 00:41:46,661 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 65 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=422, Invalid=2658, Unknown=0, NotChecked=0, Total=3080 [2019-10-07 00:41:46,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-07 00:41:46,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2019-10-07 00:41:46,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-07 00:41:46,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-10-07 00:41:46,672 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 31 [2019-10-07 00:41:46,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:41:46,673 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-10-07 00:41:46,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-10-07 00:41:46,673 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-10-07 00:41:46,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-07 00:41:46,674 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:41:46,674 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:41:46,876 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:41:46,877 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:41:46,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:41:46,878 INFO L82 PathProgramCache]: Analyzing trace with hash -858045180, now seen corresponding path program 3 times [2019-10-07 00:41:46,878 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:41:46,878 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:46,878 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:46,879 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:46,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:41:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:41:47,144 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-07 00:41:47,144 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:47,144 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:41:47,144 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:41:47,266 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-07 00:41:47,277 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:41:47,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 29 conjunts are in the unsatisfiable core [2019-10-07 00:41:47,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:41:47,448 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:47,872 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-07 00:41:47,873 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:41:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 21 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-07 00:41:48,509 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:41:48,510 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:41:48,511 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:41:48,511 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:41:48,512 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:41:48,512 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:41:48,538 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:41:48,665 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:49,003 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:49,229 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:49,335 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:49,348 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:49,411 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:49,463 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:49,474 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:51,132 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:41:51,247 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:41:51,284 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:41:51,287 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:41:51,288 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:41:51,288 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 |old(~CELLCOUNT~0)|) (= 0 (select |old(#valid)| 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|)) [2019-10-07 00:41:51,288 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 576#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:41:51,288 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 552#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:41:51,289 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 585#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:41:51,289 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 571#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:41:51,289 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 566#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:41:51,289 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 465#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= main_~i~0 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:41:51,289 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 561#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:41:51,290 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 526#(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) (<= 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)) [2019-10-07 00:41:51,290 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)) [2019-10-07 00:41:51,290 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 |old(~CELLCOUNT~0)|) (= 0 (select |old(#valid)| 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|)) [2019-10-07 00:41:51,290 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 399#(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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= main_~i~0 2147483647) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:41:51,291 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 590#(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)) [2019-10-07 00:41:51,291 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:41:51,291 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 581#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:41:51,291 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:41:51,292 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 556#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:41:51,292 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 177#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (= 2 main_~MINVAL~0) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (= main_~i~0 1) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (< 1 ~CELLCOUNT~0) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 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_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:41:51,927 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:41:52,423 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:41:52,997 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:41:52,997 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 13, 14] total 49 [2019-10-07 00:41:52,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2019-10-07 00:41:52,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2019-10-07 00:41:53,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=2141, Unknown=0, NotChecked=0, Total=2352 [2019-10-07 00:41:53,001 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 49 states. [2019-10-07 00:41:53,303 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-10-07 00:41:53,467 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2019-10-07 00:41:54,199 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-10-07 00:41:57,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:41:57,649 INFO L93 Difference]: Finished difference Result 79 states and 90 transitions. [2019-10-07 00:41:57,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-10-07 00:41:57,650 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 35 [2019-10-07 00:41:57,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:41:57,651 INFO L225 Difference]: With dead ends: 79 [2019-10-07 00:41:57,652 INFO L226 Difference]: Without dead ends: 77 [2019-10-07 00:41:57,655 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 71 SyntacticMatches, 5 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2203 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=829, Invalid=7181, Unknown=0, NotChecked=0, Total=8010 [2019-10-07 00:41:57,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-10-07 00:41:57,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 39. [2019-10-07 00:41:57,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-07 00:41:57,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2019-10-07 00:41:57,670 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 35 [2019-10-07 00:41:57,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:41:57,670 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2019-10-07 00:41:57,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 49 states. [2019-10-07 00:41:57,671 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2019-10-07 00:41:57,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-07 00:41:57,672 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:41:57,672 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:41:57,873 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:41:57,874 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:41:57,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:41:57,875 INFO L82 PathProgramCache]: Analyzing trace with hash -341030835, now seen corresponding path program 4 times [2019-10-07 00:41:57,875 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:41:57,875 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:57,876 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:57,876 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:41:57,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:41:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:41:58,156 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 7 proven. 29 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 00:41:58,156 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:41:58,156 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:41:58,156 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:41:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:41:58,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-07 00:41:58,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:41:58,358 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 35 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 00:42:16,939 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:42:25,315 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 00:42:25,316 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:42:25,318 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:42:25,318 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:42:25,318 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:42:25,319 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:42:25,319 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:42:25,353 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:42:25,431 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:25,582 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:25,735 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:25,742 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:25,749 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:25,773 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:25,831 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:25,841 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:25,867 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:25,875 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:25,883 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:26,829 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:26,900 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:26,913 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:26,920 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:26,936 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:26,943 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:27,028 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:42:27,054 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:42:27,056 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:42:27,056 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:42:27,056 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|)) [2019-10-07 00:42:27,057 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 586#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:27,057 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 562#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:42:27,057 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 595#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:42:27,057 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 581#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:27,057 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 576#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:27,057 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 463#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= main_~i~0 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:42:27,058 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 571#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:42:27,058 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 524#(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) (<= 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)) [2019-10-07 00:42:27,058 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)) [2019-10-07 00:42:27,058 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|)) [2019-10-07 00:42:27,058 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 397#(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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= main_~i~0 2147483647) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:42:27,059 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 600#(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)) [2019-10-07 00:42:27,059 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:42:27,059 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 591#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:27,059 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:42:27,059 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 566#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:42:27,059 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 175#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (= 2 main_~MINVAL~0) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (= main_~i~0 1) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (< 1 ~CELLCOUNT~0) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 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_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:42:27,621 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:42:28,056 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:42:28,645 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:42:28,645 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 15, 14] total 46 [2019-10-07 00:42:28,646 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2019-10-07 00:42:28,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2019-10-07 00:42:28,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1894, Unknown=7, NotChecked=0, Total=2070 [2019-10-07 00:42:28,648 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 46 states. [2019-10-07 00:42:28,913 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-10-07 00:42:29,072 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2019-10-07 00:42:33,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:42:33,646 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2019-10-07 00:42:33,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-07 00:42:33,647 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 42 [2019-10-07 00:42:33,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:42:33,649 INFO L225 Difference]: With dead ends: 92 [2019-10-07 00:42:33,649 INFO L226 Difference]: Without dead ends: 63 [2019-10-07 00:42:33,652 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 87 SyntacticMatches, 11 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1972 ImplicationChecksByTransitivity, 32.1s TimeCoverageRelationStatistics Valid=770, Invalid=6029, Unknown=7, NotChecked=0, Total=6806 [2019-10-07 00:42:33,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-10-07 00:42:33,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 49. [2019-10-07 00:42:33,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-10-07 00:42:33,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2019-10-07 00:42:33,670 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 42 [2019-10-07 00:42:33,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:42:33,671 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2019-10-07 00:42:33,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 46 states. [2019-10-07 00:42:33,671 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2019-10-07 00:42:33,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-07 00:42:33,672 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:42:33,672 INFO L385 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:42:33,876 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:42:33,877 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:42:33,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:42:33,877 INFO L82 PathProgramCache]: Analyzing trace with hash -227036956, now seen corresponding path program 5 times [2019-10-07 00:42:33,878 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:42:33,878 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:33,878 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:33,878 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:33,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:42:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:42:34,258 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 24 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-07 00:42:34,259 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:34,259 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:42:34,259 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:42:34,457 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-10-07 00:42:34,457 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:42:34,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-07 00:42:34,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:42:34,809 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 00:42:34,810 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:42:35,122 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 34 proven. 15 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-07 00:42:35,122 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:42:35,126 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:42:35,126 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:42:35,127 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:42:35,127 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:42:35,127 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:42:35,150 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 25 for LOIs [2019-10-07 00:42:35,239 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:35,405 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:35,418 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:35,443 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:35,455 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:35,607 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:36,365 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:36,438 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:42:36,466 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:42:36,468 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:42:36,468 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:42:36,468 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|)) [2019-10-07 00:42:36,468 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 563#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:36,468 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 539#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:42:36,469 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 572#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:42:36,471 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 558#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:36,472 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 553#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:36,472 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 452#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= main_~i~0 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:42:36,472 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 548#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:42:36,472 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 513#(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) (<= 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)) [2019-10-07 00:42:36,472 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)) [2019-10-07 00:42:36,473 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|)) [2019-10-07 00:42:36,473 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 386#(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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= main_~i~0 2147483647) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:42:36,473 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 577#(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)) [2019-10-07 00:42:36,473 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:42:36,473 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 568#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:36,474 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:42:36,474 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 543#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:42:36,474 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 164#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:42:36,986 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:42:37,370 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:42:37,931 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:42:37,932 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 12, 14] total 46 [2019-10-07 00:42:37,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2019-10-07 00:42:37,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2019-10-07 00:42:37,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1768, Unknown=0, NotChecked=0, Total=2070 [2019-10-07 00:42:37,935 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand 46 states. [2019-10-07 00:42:38,180 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-10-07 00:42:38,347 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-10-07 00:42:38,829 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-10-07 00:42:39,464 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2019-10-07 00:42:39,627 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2019-10-07 00:42:40,363 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2019-10-07 00:42:41,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:42:41,718 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2019-10-07 00:42:41,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-10-07 00:42:41,719 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 49 [2019-10-07 00:42:41,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:42:41,722 INFO L225 Difference]: With dead ends: 85 [2019-10-07 00:42:41,722 INFO L226 Difference]: Without dead ends: 55 [2019-10-07 00:42:41,725 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 108 SyntacticMatches, 6 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2116 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=902, Invalid=5260, Unknown=0, NotChecked=0, Total=6162 [2019-10-07 00:42:41,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-10-07 00:42:41,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2019-10-07 00:42:41,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-07 00:42:41,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2019-10-07 00:42:41,745 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 49 [2019-10-07 00:42:41,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:42:41,745 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2019-10-07 00:42:41,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 46 states. [2019-10-07 00:42:41,745 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2019-10-07 00:42:41,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-07 00:42:41,746 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:42:41,746 INFO L385 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:42:41,954 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:42:41,954 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:42:41,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:42:41,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1587599406, now seen corresponding path program 6 times [2019-10-07 00:42:41,955 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:42:41,955 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:41,955 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:41,955 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:41,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:42:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:42:42,223 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 8 proven. 62 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-07 00:42:42,223 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:42,223 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:42:42,223 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:42:42,425 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-07 00:42:42,425 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:42:42,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 35 conjunts are in the unsatisfiable core [2019-10-07 00:42:42,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:42:42,616 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-07 00:42:43,263 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:42:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 9 proven. 61 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-07 00:42:43,834 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:42:43,835 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:42:43,835 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:42:43,836 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:42:43,836 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:42:43,836 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:42:43,854 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:42:43,915 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:44,078 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:44,091 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:44,131 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:44,141 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:44,280 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:44,286 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:44,291 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:44,304 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,176 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,183 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,189 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,215 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,270 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,280 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,312 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,321 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,327 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,378 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,385 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,392 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,428 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,446 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,479 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:42:45,506 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:42:45,509 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:42:45,509 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:42:45,509 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 |old(~CELLCOUNT~0)|) (= 0 (select |old(#valid)| 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|)) [2019-10-07 00:42:45,510 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 573#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:45,510 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 549#(and (<= 0 main_~j~0) (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~j~0 2) (<= |#NULL.base| 0) (<= main_~i~0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (div ~CELLCOUNT~0 2) 1) (div ~CELLCOUNT~0 2))) (= main_~MINVAL~0 2) (<= 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)|) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= main_~j~0 1) (<= |#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)|) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0))) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (<= main_~j~0 2)) [2019-10-07 00:42:45,510 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 582#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:42:45,510 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 568#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:45,510 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 563#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:45,511 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 453#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= main_~i~0 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:42:45,511 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 558#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:42:45,511 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 514#(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) (<= 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)) [2019-10-07 00:42:45,511 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)) [2019-10-07 00:42:45,512 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 |old(~CELLCOUNT~0)|) (= 0 (select |old(#valid)| 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|)) [2019-10-07 00:42:45,512 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 387#(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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= main_~i~0 2147483647) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:42:45,512 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 587#(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)) [2019-10-07 00:42:45,512 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:42:45,512 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 578#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:45,512 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:42:45,512 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 553#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:42:45,512 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 165#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (= 2 main_~MINVAL~0) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (= main_~i~0 1) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (< 1 ~CELLCOUNT~0) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 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_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:42:46,145 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:42:46,593 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2019-10-07 00:42:46,768 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:42:47,528 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:42:47,528 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 16, 14] total 57 [2019-10-07 00:42:47,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 57 states [2019-10-07 00:42:47,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2019-10-07 00:42:47,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=2939, Unknown=0, NotChecked=0, Total=3192 [2019-10-07 00:42:47,530 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand 57 states. [2019-10-07 00:42:47,889 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-10-07 00:42:48,102 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2019-10-07 00:42:48,285 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2019-10-07 00:42:48,604 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2019-10-07 00:42:48,819 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2019-10-07 00:42:49,369 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2019-10-07 00:42:49,578 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 52 [2019-10-07 00:42:49,796 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-10-07 00:42:50,175 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-10-07 00:42:50,456 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-10-07 00:42:51,046 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-10-07 00:42:52,015 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-10-07 00:42:55,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:42:55,607 INFO L93 Difference]: Finished difference Result 109 states and 130 transitions. [2019-10-07 00:42:55,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2019-10-07 00:42:55,607 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 53 [2019-10-07 00:42:55,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:42:55,610 INFO L225 Difference]: With dead ends: 109 [2019-10-07 00:42:55,611 INFO L226 Difference]: Without dead ends: 107 [2019-10-07 00:42:55,614 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 112 SyntacticMatches, 11 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3473 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=1132, Invalid=11078, Unknown=0, NotChecked=0, Total=12210 [2019-10-07 00:42:55,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-10-07 00:42:55,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 54. [2019-10-07 00:42:55,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-10-07 00:42:55,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2019-10-07 00:42:55,635 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 53 [2019-10-07 00:42:55,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:42:55,636 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2019-10-07 00:42:55,636 INFO L463 AbstractCegarLoop]: Interpolant automaton has 57 states. [2019-10-07 00:42:55,636 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2019-10-07 00:42:55,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-07 00:42:55,638 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:42:55,638 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:42:55,841 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:42:55,842 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:42:55,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:42:55,843 INFO L82 PathProgramCache]: Analyzing trace with hash 435991011, now seen corresponding path program 7 times [2019-10-07 00:42:55,843 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:42:55,843 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:55,843 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:55,843 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:55,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:42:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:42:56,104 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 11 proven. 75 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 00:42:56,105 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:56,105 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:42:56,105 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:42:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:42:56,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 34 conjunts are in the unsatisfiable core [2019-10-07 00:42:56,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:42:56,484 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:39,361 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 1 proven. 85 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 00:43:39,361 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:43:41,583 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 10 proven. 76 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 00:43:41,583 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:43:41,585 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:43:41,585 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:43:41,585 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:43:41,586 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:43:41,586 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:43:41,606 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:43:41,713 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:41,866 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:41,879 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:41,913 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:41,924 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:42,086 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:42,094 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:42,101 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:42,114 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:42,926 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:42,966 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:42,975 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:42,983 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:43,028 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:43,035 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:43,124 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:43:43,155 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:43:43,159 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:43:43,159 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:43:43,160 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 |old(~CELLCOUNT~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 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|)) [2019-10-07 00:43:43,160 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 575#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:43:43,160 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 551#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:43:43,160 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 584#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:43:43,160 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 570#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:43:43,160 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 565#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:43:43,160 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 452#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= main_~i~0 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:43:43,161 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 560#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:43:43,161 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 513#(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) (<= 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)) [2019-10-07 00:43:43,161 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)) [2019-10-07 00:43:43,161 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 |old(~CELLCOUNT~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 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|)) [2019-10-07 00:43:43,161 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 386#(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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= main_~i~0 2147483647) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:43:43,161 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 589#(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)) [2019-10-07 00:43:43,161 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:43:43,162 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 580#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:43:43,162 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 |old(~CELLCOUNT~0)|) (<= 0 |#NULL.offset|) (= 2 main_~MINVAL~0) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:43:43,162 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 555#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:43:43,162 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 164#(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) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= main_~DEFAULTVALUE~0 1) (<= 0 |old(~CELLCOUNT~0)|) (<= 0 |#NULL.offset|) (= 2 main_~MINVAL~0) (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) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) [2019-10-07 00:43:43,793 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:43:44,273 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:43:45,045 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:43:45,046 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 18, 14] total 51 [2019-10-07 00:43:45,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 51 states [2019-10-07 00:43:45,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2019-10-07 00:43:45,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=2333, Unknown=6, NotChecked=0, Total=2550 [2019-10-07 00:43:45,049 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 51 states. [2019-10-07 00:43:45,329 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2019-10-07 00:43:45,488 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2019-10-07 00:43:48,430 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2019-10-07 00:43:51,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:43:51,997 INFO L93 Difference]: Finished difference Result 125 states and 154 transitions. [2019-10-07 00:43:51,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2019-10-07 00:43:51,998 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 60 [2019-10-07 00:43:51,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:43:51,999 INFO L225 Difference]: With dead ends: 125 [2019-10-07 00:43:52,000 INFO L226 Difference]: Without dead ends: 85 [2019-10-07 00:43:52,003 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 134 SyntacticMatches, 16 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3050 ImplicationChecksByTransitivity, 52.2s TimeCoverageRelationStatistics Valid=1108, Invalid=9188, Unknown=6, NotChecked=0, Total=10302 [2019-10-07 00:43:52,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-10-07 00:43:52,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 64. [2019-10-07 00:43:52,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-10-07 00:43:52,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 74 transitions. [2019-10-07 00:43:52,028 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 74 transitions. Word has length 60 [2019-10-07 00:43:52,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:43:52,029 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 74 transitions. [2019-10-07 00:43:52,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 51 states. [2019-10-07 00:43:52,029 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 74 transitions. [2019-10-07 00:43:52,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-10-07 00:43:52,030 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:43:52,030 INFO L385 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:43:52,232 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:43:52,232 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:43:52,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:43:52,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1132425870, now seen corresponding path program 8 times [2019-10-07 00:43:52,233 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:43:52,233 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:43:52,234 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:43:52,234 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:43:52,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:43:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:43:52,799 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 53 proven. 49 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 00:43:52,799 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:43:52,800 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:43:52,800 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:43:53,084 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2019-10-07 00:43:53,084 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:43:53,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-07 00:43:53,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:43:53,432 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 69 proven. 35 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-10-07 00:43:53,433 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:43:53,661 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 69 proven. 33 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 00:43:53,661 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:43:53,663 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:43:53,663 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:43:53,664 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:43:53,664 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:43:53,664 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:43:53,682 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:43:53,745 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:53,888 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:53,897 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:53,937 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:53,947 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:54,091 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:54,124 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:54,134 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:54,143 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:54,151 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:54,180 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:54,960 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:55,045 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:43:55,076 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:43:55,084 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:43:55,085 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:43:55,085 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|)) [2019-10-07 00:43:55,085 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 575#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:43:55,085 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 551#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:43:55,085 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 584#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:43:55,086 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 570#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:43:55,086 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 565#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:43:55,086 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 464#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= main_~i~0 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:43:55,086 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 560#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:43:55,086 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 525#(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) (<= 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)) [2019-10-07 00:43:55,087 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)) [2019-10-07 00:43:55,087 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|)) [2019-10-07 00:43:55,087 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 398#(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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= main_~i~0 2147483647) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:43:55,087 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 589#(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)) [2019-10-07 00:43:55,087 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:43:55,087 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 580#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:43:55,088 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:43:55,088 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 555#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:43:55,088 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 176#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (= 2 main_~MINVAL~0) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (= main_~i~0 1) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (< 1 ~CELLCOUNT~0) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 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_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:43:55,640 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:43:56,043 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:43:56,728 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:43:56,728 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16, 13, 14] total 53 [2019-10-07 00:43:56,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 53 states [2019-10-07 00:43:56,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2019-10-07 00:43:56,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=398, Invalid=2358, Unknown=0, NotChecked=0, Total=2756 [2019-10-07 00:43:56,731 INFO L87 Difference]: Start difference. First operand 64 states and 74 transitions. Second operand 53 states. [2019-10-07 00:43:57,034 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2019-10-07 00:43:57,204 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2019-10-07 00:43:58,241 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-10-07 00:43:58,871 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2019-10-07 00:44:00,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:44:00,867 INFO L93 Difference]: Finished difference Result 105 states and 121 transitions. [2019-10-07 00:44:00,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-07 00:44:00,867 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 67 [2019-10-07 00:44:00,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:44:00,869 INFO L225 Difference]: With dead ends: 105 [2019-10-07 00:44:00,869 INFO L226 Difference]: Without dead ends: 69 [2019-10-07 00:44:00,871 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 156 SyntacticMatches, 8 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2862 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1091, Invalid=6565, Unknown=0, NotChecked=0, Total=7656 [2019-10-07 00:44:00,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-10-07 00:44:00,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2019-10-07 00:44:00,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-10-07 00:44:00,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2019-10-07 00:44:00,894 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 67 [2019-10-07 00:44:00,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:44:00,894 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2019-10-07 00:44:00,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 53 states. [2019-10-07 00:44:00,894 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2019-10-07 00:44:00,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-07 00:44:00,896 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:44:00,896 INFO L385 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:44:01,101 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:44:01,102 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:44:01,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:44:01,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1081271464, now seen corresponding path program 9 times [2019-10-07 00:44:01,102 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:44:01,103 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:44:01,103 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:44:01,103 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:44:01,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:44:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:44:01,414 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 12 proven. 124 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 00:44:01,415 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:44:01,415 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:44:01,415 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:44:01,707 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-07 00:44:01,708 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:44:01,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 41 conjunts are in the unsatisfiable core [2019-10-07 00:44:01,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:44:01,866 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:01,970 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:02,998 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 00:44:02,999 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:44:03,697 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 24 [2019-10-07 00:44:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 13 proven. 123 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 00:44:03,910 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:44:03,911 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:44:03,911 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:44:03,912 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:44:03,912 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:44:03,912 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:44:03,931 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:44:03,991 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:04,139 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:04,263 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:04,307 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:04,317 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:04,326 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:04,368 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:04,387 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:05,080 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:05,104 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:05,110 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:05,115 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:05,192 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:44:05,217 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:44:05,220 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:44:05,220 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:44:05,220 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 |old(~CELLCOUNT~0)|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 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|)) [2019-10-07 00:44:05,220 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 574#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:44:05,220 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 550#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:44:05,220 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 583#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:44:05,221 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 569#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:44:05,221 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 564#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:44:05,221 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 463#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= main_~i~0 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:44:05,221 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 559#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:44:05,221 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 524#(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) (<= 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)) [2019-10-07 00:44:05,221 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)) [2019-10-07 00:44:05,221 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 |old(~CELLCOUNT~0)|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 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|)) [2019-10-07 00:44:05,221 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 397#(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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= main_~i~0 2147483647) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:44:05,222 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 588#(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)) [2019-10-07 00:44:05,222 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:44:05,222 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 579#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:44:05,222 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 |old(~CELLCOUNT~0)|) (<= 0 |#NULL.offset|) (= 2 main_~MINVAL~0) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:44:05,222 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 554#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:44:05,222 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 175#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= main_~DEFAULTVALUE~0 1) (= 2 main_~MINVAL~0) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) (< 1 ~CELLCOUNT~0) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:44:05,949 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:44:06,473 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:44:07,436 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:44:07,437 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21, 19, 14] total 66 [2019-10-07 00:44:07,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 66 states [2019-10-07 00:44:07,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2019-10-07 00:44:07,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=3990, Unknown=0, NotChecked=0, Total=4290 [2019-10-07 00:44:07,439 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand 66 states. [2019-10-07 00:44:07,758 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-10-07 00:44:07,931 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2019-10-07 00:44:09,072 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-10-07 00:44:15,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:44:15,913 INFO L93 Difference]: Finished difference Result 133 states and 159 transitions. [2019-10-07 00:44:15,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2019-10-07 00:44:15,914 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 71 [2019-10-07 00:44:15,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:44:15,916 INFO L225 Difference]: With dead ends: 133 [2019-10-07 00:44:15,916 INFO L226 Difference]: Without dead ends: 131 [2019-10-07 00:44:15,918 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 154 SyntacticMatches, 17 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4923 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=1361, Invalid=15409, Unknown=0, NotChecked=0, Total=16770 [2019-10-07 00:44:15,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-07 00:44:15,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 68. [2019-10-07 00:44:15,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-10-07 00:44:15,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2019-10-07 00:44:15,942 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 71 [2019-10-07 00:44:15,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:44:15,942 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2019-10-07 00:44:15,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 66 states. [2019-10-07 00:44:15,943 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2019-10-07 00:44:15,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-07 00:44:15,944 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:44:15,944 INFO L385 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:44:16,144 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:44:16,145 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:44:16,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:44:16,145 INFO L82 PathProgramCache]: Analyzing trace with hash 289434489, now seen corresponding path program 10 times [2019-10-07 00:44:16,145 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:44:16,146 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:44:16,146 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:44:16,146 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:44:16,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:44:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:44:16,462 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 15 proven. 143 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-10-07 00:44:16,462 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:44:16,463 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:44:16,463 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:44:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:44:16,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 40 conjunts are in the unsatisfiable core [2019-10-07 00:44:16,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:44:16,998 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:56,342 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 1 proven. 157 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-10-07 00:45:56,342 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:45:58,612 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 14 proven. 144 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-10-07 00:45:58,613 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:45:58,614 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:45:58,614 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:45:58,614 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:45:58,614 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:45:58,614 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:45:58,628 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:45:58,686 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:58,823 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:58,850 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:58,859 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:58,883 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:59,004 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:59,011 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:59,018 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:59,041 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:59,085 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:59,094 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:59,102 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:59,111 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:59,120 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:00,149 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:00,187 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:00,225 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:00,234 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:00,241 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:00,248 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:00,340 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:46:00,367 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:46:00,369 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:46:00,370 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:46:00,370 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|)) [2019-10-07 00:46:00,370 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 588#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:46:00,370 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 564#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:46:00,370 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 597#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:46:00,371 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 583#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:46:00,371 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 578#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:46:00,371 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 465#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= main_~i~0 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:46:00,371 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 573#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:46:00,371 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 526#(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) (<= 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)) [2019-10-07 00:46:00,372 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)) [2019-10-07 00:46:00,372 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|)) [2019-10-07 00:46:00,372 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 399#(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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= main_~i~0 2147483647) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:46:00,372 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 602#(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)) [2019-10-07 00:46:00,372 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:46:00,373 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 593#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:46:00,373 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:46:00,373 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 568#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:46:00,373 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 177#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (= 2 main_~MINVAL~0) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (= main_~i~0 1) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (< 1 ~CELLCOUNT~0) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 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_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:46:01,534 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:46:02,464 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:46:02,464 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22, 21, 14] total 57 [2019-10-07 00:46:02,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 57 states [2019-10-07 00:46:02,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2019-10-07 00:46:02,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=2943, Unknown=8, NotChecked=0, Total=3192 [2019-10-07 00:46:02,465 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand 57 states. [2019-10-07 00:46:02,773 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-10-07 00:46:02,938 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2019-10-07 00:46:04,383 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 41 [2019-10-07 00:46:07,573 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2019-10-07 00:46:07,759 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2019-10-07 00:46:13,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:46:13,969 INFO L93 Difference]: Finished difference Result 174 states and 215 transitions. [2019-10-07 00:46:13,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2019-10-07 00:46:13,970 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 78 [2019-10-07 00:46:13,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:46:13,972 INFO L225 Difference]: With dead ends: 174 [2019-10-07 00:46:13,972 INFO L226 Difference]: Without dead ends: 126 [2019-10-07 00:46:13,975 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 180 SyntacticMatches, 22 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5837 ImplicationChecksByTransitivity, 112.3s TimeCoverageRelationStatistics Valid=1791, Invalid=16561, Unknown=8, NotChecked=0, Total=18360 [2019-10-07 00:46:13,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-10-07 00:46:14,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 78. [2019-10-07 00:46:14,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-10-07 00:46:14,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2019-10-07 00:46:14,015 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 78 [2019-10-07 00:46:14,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:46:14,015 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2019-10-07 00:46:14,015 INFO L463 AbstractCegarLoop]: Interpolant automaton has 57 states. [2019-10-07 00:46:14,015 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2019-10-07 00:46:14,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-10-07 00:46:14,016 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:46:14,016 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:46:14,216 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:46:14,217 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:46:14,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:46:14,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1036393416, now seen corresponding path program 11 times [2019-10-07 00:46:14,218 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:46:14,218 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:46:14,218 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:46:14,219 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:46:14,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:46:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:46:14,868 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 94 proven. 86 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2019-10-07 00:46:14,869 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:46:14,869 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:46:14,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:46:15,305 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2019-10-07 00:46:15,305 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:46:15,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-07 00:46:15,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:46:15,831 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 116 proven. 67 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2019-10-07 00:46:15,831 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:46:16,243 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 116 proven. 67 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2019-10-07 00:46:16,244 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:46:16,245 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:46:16,245 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:46:16,245 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:46:16,246 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:46:16,246 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:46:16,266 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:46:16,333 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,464 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,596 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,603 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,609 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,622 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,678 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,687 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,726 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,745 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,751 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,790 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,811 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,842 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,850 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:16,858 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:17,559 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:17,590 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:17,597 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:17,601 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:17,679 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:46:17,703 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:46:17,705 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:46:17,706 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:46:17,706 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(#length)| |#length|) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:46:17,706 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 579#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:46:17,706 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 555#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:46:17,706 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 588#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:46:17,706 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 574#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:46:17,707 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 569#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:46:17,707 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 468#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= main_~i~0 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:46:17,707 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 564#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:46:17,707 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 529#(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) (<= 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)) [2019-10-07 00:46:17,707 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)) [2019-10-07 00:46:17,707 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(#length)| |#length|) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:46:17,707 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 402#(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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= main_~i~0 2147483647) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:46:17,707 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 593#(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)) [2019-10-07 00:46:17,707 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:46:17,708 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 584#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:46:17,708 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:46:17,708 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 559#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:46:17,708 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 180#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:46:18,301 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:46:18,743 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:46:19,563 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:46:19,563 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21, 19, 14] total 67 [2019-10-07 00:46:19,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2019-10-07 00:46:19,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2019-10-07 00:46:19,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=685, Invalid=3737, Unknown=0, NotChecked=0, Total=4422 [2019-10-07 00:46:19,565 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand 67 states. [2019-10-07 00:46:19,844 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-10-07 00:46:20,023 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-10-07 00:46:21,991 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-10-07 00:46:22,872 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2019-10-07 00:46:25,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:46:25,420 INFO L93 Difference]: Finished difference Result 125 states and 146 transitions. [2019-10-07 00:46:25,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-10-07 00:46:25,421 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 85 [2019-10-07 00:46:25,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:46:25,422 INFO L225 Difference]: With dead ends: 125 [2019-10-07 00:46:25,422 INFO L226 Difference]: Without dead ends: 83 [2019-10-07 00:46:25,424 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 197 SyntacticMatches, 10 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5417 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=2083, Invalid=11489, Unknown=0, NotChecked=0, Total=13572 [2019-10-07 00:46:25,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-10-07 00:46:25,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 79. [2019-10-07 00:46:25,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-10-07 00:46:25,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 92 transitions. [2019-10-07 00:46:25,460 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 92 transitions. Word has length 85 [2019-10-07 00:46:25,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:46:25,460 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 92 transitions. [2019-10-07 00:46:25,460 INFO L463 AbstractCegarLoop]: Interpolant automaton has 67 states. [2019-10-07 00:46:25,460 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 92 transitions. [2019-10-07 00:46:25,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-07 00:46:25,461 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:46:25,461 INFO L385 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 8, 8, 8, 8, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:46:25,662 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:46:25,662 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:46:25,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:46:25,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1302244994, now seen corresponding path program 12 times [2019-10-07 00:46:25,663 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:46:25,663 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:46:25,664 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:46:25,664 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:46:25,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:46:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:46:26,084 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 16 proven. 210 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-10-07 00:46:26,084 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:46:26,084 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:46:26,084 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:46:26,482 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-07 00:46:26,482 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:46:26,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 47 conjunts are in the unsatisfiable core [2019-10-07 00:46:26,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:46:26,698 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:26,781 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:28,293 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2019-10-07 00:46:28,293 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:46:29,086 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 24 [2019-10-07 00:46:29,457 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 17 proven. 207 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2019-10-07 00:46:29,457 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:46:29,458 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:46:29,458 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:46:29,459 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:46:29,459 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:46:29,459 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:46:29,479 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 25 for LOIs [2019-10-07 00:46:29,553 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:29,677 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:29,706 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:29,735 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:29,746 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:29,892 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:29,900 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:29,907 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:29,929 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:29,987 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:29,995 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:30,004 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:30,025 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:30,033 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:30,097 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:30,106 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:30,137 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:30,157 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:30,166 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:30,811 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:46:30,880 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:46:30,902 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:46:30,904 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:46:30,904 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:46:30,904 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|)) [2019-10-07 00:46:30,905 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 580#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:46:30,905 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 556#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:46:30,905 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 589#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:46:30,905 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 575#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:46:30,905 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 570#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:46:30,905 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 469#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= main_~i~0 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:46:30,905 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 565#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:46:30,905 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 530#(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) (<= 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)) [2019-10-07 00:46:30,905 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)) [2019-10-07 00:46:30,906 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|)) [2019-10-07 00:46:30,906 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 403#(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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= main_~i~0 2147483647) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:46:30,906 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 594#(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)) [2019-10-07 00:46:30,906 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:46:30,906 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 585#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:46:30,906 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:46:30,906 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 560#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:46:30,906 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 181#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (= 2 main_~MINVAL~0) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (= main_~i~0 1) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (< 1 ~CELLCOUNT~0) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 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_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:46:31,675 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:46:32,235 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:46:33,454 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:46:33,454 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 22, 14] total 76 [2019-10-07 00:46:33,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 76 states [2019-10-07 00:46:33,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2019-10-07 00:46:33,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=352, Invalid=5348, Unknown=0, NotChecked=0, Total=5700 [2019-10-07 00:46:33,457 INFO L87 Difference]: Start difference. First operand 79 states and 92 transitions. Second operand 76 states. [2019-10-07 00:46:33,826 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-10-07 00:46:34,017 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2019-10-07 00:46:44,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:46:44,839 INFO L93 Difference]: Finished difference Result 157 states and 189 transitions. [2019-10-07 00:46:44,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2019-10-07 00:46:44,840 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 89 [2019-10-07 00:46:44,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:46:44,842 INFO L225 Difference]: With dead ends: 157 [2019-10-07 00:46:44,842 INFO L226 Difference]: Without dead ends: 155 [2019-10-07 00:46:44,844 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 197 SyntacticMatches, 23 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6979 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=1637, Invalid=21315, Unknown=0, NotChecked=0, Total=22952 [2019-10-07 00:46:44,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-10-07 00:46:44,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 82. [2019-10-07 00:46:44,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-10-07 00:46:44,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2019-10-07 00:46:44,877 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 96 transitions. Word has length 89 [2019-10-07 00:46:44,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:46:44,877 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 96 transitions. [2019-10-07 00:46:44,878 INFO L463 AbstractCegarLoop]: Interpolant automaton has 76 states. [2019-10-07 00:46:44,878 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 96 transitions. [2019-10-07 00:46:44,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-07 00:46:44,878 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:46:44,878 INFO L385 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:46:45,079 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:46:45,080 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:46:45,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:46:45,080 INFO L82 PathProgramCache]: Analyzing trace with hash 365221135, now seen corresponding path program 13 times [2019-10-07 00:46:45,080 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:46:45,081 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:46:45,081 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:46:45,081 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:46:45,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:46:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:46:45,537 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 18 proven. 234 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2019-10-07 00:46:45,537 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:46:45,537 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:46:45,537 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:46:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:46:45,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 44 conjunts are in the unsatisfiable core [2019-10-07 00:46:45,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:46:46,174 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:48:42,777 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 1 proven. 251 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2019-10-07 00:48:42,777 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:48:45,078 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 18 proven. 234 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2019-10-07 00:48:45,079 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:48:45,080 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:48:45,080 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:48:45,081 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:48:45,081 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:48:45,081 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:48:45,096 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:48:45,158 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:48:45,287 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:48:45,312 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:48:45,335 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:48:45,343 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:48:45,453 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:48:46,374 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:48:46,382 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:48:46,389 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:48:46,401 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:48:46,488 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:48:46,514 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:48:46,517 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:48:46,517 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:48:46,518 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|)) [2019-10-07 00:48:46,518 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 563#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:48:46,518 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 539#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:48:46,518 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 572#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:48:46,518 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 558#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:48:46,519 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 553#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:48:46,519 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 452#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= main_~i~0 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:48:46,519 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 548#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:48:46,519 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 513#(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) (<= 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)) [2019-10-07 00:48:46,519 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)) [2019-10-07 00:48:46,520 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|)) [2019-10-07 00:48:46,520 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 386#(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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= main_~i~0 2147483647) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:48:46,520 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 577#(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)) [2019-10-07 00:48:46,520 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:48:46,521 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 568#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:48:46,521 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:48:46,521 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 543#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:48:46,521 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 164#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:48:47,192 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:48:47,717 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:48:48,807 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:48:48,807 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 25, 24, 14] total 61 [2019-10-07 00:48:48,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 61 states [2019-10-07 00:48:48,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2019-10-07 00:48:48,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=3437, Unknown=10, NotChecked=0, Total=3660 [2019-10-07 00:48:48,809 INFO L87 Difference]: Start difference. First operand 82 states and 96 transitions. Second operand 61 states. [2019-10-07 00:48:49,332 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2019-10-07 00:48:54,752 WARN L191 SmtUtils]: Spent 4.09 s on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2019-10-07 00:48:57,944 WARN L191 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2019-10-07 00:49:02,080 WARN L191 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-10-07 00:49:06,222 WARN L191 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2019-10-07 00:49:07,579 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2019-10-07 00:49:13,916 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2019-10-07 00:49:47,922 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2019-10-07 00:50:30,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:50:30,228 INFO L93 Difference]: Finished difference Result 185 states and 224 transitions. [2019-10-07 00:50:30,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2019-10-07 00:50:30,229 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 96 [2019-10-07 00:50:30,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:50:30,230 INFO L225 Difference]: With dead ends: 185 [2019-10-07 00:50:30,230 INFO L226 Difference]: Without dead ends: 183 [2019-10-07 00:50:30,232 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 238 SyntacticMatches, 30 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8467 ImplicationChecksByTransitivity, 197.0s TimeCoverageRelationStatistics Valid=2275, Invalid=23131, Unknown=34, NotChecked=0, Total=25440 [2019-10-07 00:50:30,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-10-07 00:50:30,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 132. [2019-10-07 00:50:30,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-07 00:50:30,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 158 transitions. [2019-10-07 00:50:30,289 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 158 transitions. Word has length 96 [2019-10-07 00:50:30,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:50:30,290 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 158 transitions. [2019-10-07 00:50:30,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 61 states. [2019-10-07 00:50:30,290 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 158 transitions. [2019-10-07 00:50:30,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-07 00:50:30,291 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:50:30,291 INFO L385 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:50:30,496 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:30,497 INFO L410 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:50:30,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:50:30,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1701992990, now seen corresponding path program 14 times [2019-10-07 00:50:30,498 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:50:30,498 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:30,498 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:30,498 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:30,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:50:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:50:31,375 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 147 proven. 133 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2019-10-07 00:50:31,375 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:31,375 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:50:31,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:32,136 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-10-07 00:50:32,137 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:50:32,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-07 00:50:32,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:50:32,797 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 175 proven. 108 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2019-10-07 00:50:32,797 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:50:33,355 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 175 proven. 108 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2019-10-07 00:50:33,355 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:50:33,356 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:50:33,356 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:50:33,356 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:50:33,356 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:50:33,356 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:50:33,372 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:50:33,458 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:33,588 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:33,616 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:33,640 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:33,651 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:33,780 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:33,787 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:33,795 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:33,809 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:34,802 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:34,810 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:34,817 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:34,848 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:34,882 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:34,890 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:34,899 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:34,928 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:34,951 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:35,077 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:50:35,123 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:50:35,128 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:50:35,128 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:50:35,128 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|)) [2019-10-07 00:50:35,128 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 576#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:50:35,129 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 552#(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) (<= main_~j~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:50:35,129 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 585#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:50:35,129 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 571#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:50:35,130 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 566#(and (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:50:35,130 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 453#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= 1 main_~i~0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (<= main_~i~0 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:50:35,130 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 561#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:50:35,130 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 514#(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) (<= 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)) [2019-10-07 00:50:35,131 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)) [2019-10-07 00:50:35,131 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|)) [2019-10-07 00:50:35,131 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 387#(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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= main_~i~0 2147483647) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:50:35,131 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 590#(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)) [2019-10-07 00:50:35,132 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:50:35,132 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 581#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:50:35,132 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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)) [2019-10-07 00:50:35,133 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 556#(and (or (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 1) (= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (= |__VERIFIER_assert_#in~cond| 0) (= |#NULL.offset| 0))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:50:35,133 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 165#(and (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) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (not (= 0 (ite (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) 1 0))) (= 0 |#NULL.base|) (= (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 2) 0))) (+ (mod ~CELLCOUNT~0 2) (- 2)) (mod ~CELLCOUNT~0 2)) 0) (<= 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) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 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) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:50:35,880 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:50:36,342 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:50:37,331 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:50:37,331 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 24, 22, 14] total 76 [2019-10-07 00:50:37,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 76 states [2019-10-07 00:50:37,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2019-10-07 00:50:37,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=902, Invalid=4798, Unknown=0, NotChecked=0, Total=5700 [2019-10-07 00:50:37,333 INFO L87 Difference]: Start difference. First operand 132 states and 158 transitions. Second operand 76 states. [2019-10-07 00:50:37,611 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-10-07 00:50:37,784 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-10-07 00:50:40,028 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-10-07 00:50:40,932 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2019-10-07 00:50:44,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:50:44,108 INFO L93 Difference]: Finished difference Result 180 states and 214 transitions. [2019-10-07 00:50:44,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2019-10-07 00:50:44,108 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 103 [2019-10-07 00:50:44,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:50:44,109 INFO L225 Difference]: With dead ends: 180 [2019-10-07 00:50:44,109 INFO L226 Difference]: Without dead ends: 132 [2019-10-07 00:50:44,111 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 243 SyntacticMatches, 12 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7299 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=2750, Invalid=15072, Unknown=0, NotChecked=0, Total=17822 [2019-10-07 00:50:44,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-10-07 00:50:44,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-10-07 00:50:44,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-07 00:50:44,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 157 transitions. [2019-10-07 00:50:44,162 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 157 transitions. Word has length 103 [2019-10-07 00:50:44,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:50:44,162 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 157 transitions. [2019-10-07 00:50:44,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 76 states. [2019-10-07 00:50:44,162 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 157 transitions. [2019-10-07 00:50:44,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-07 00:50:44,163 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:50:44,163 INFO L385 BasicCegarLoop]: trace histogram [14, 10, 10, 10, 9, 9, 9, 9, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:50:44,369 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:44,370 INFO L410 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:50:44,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:50:44,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1223708421, now seen corresponding path program 15 times [2019-10-07 00:50:44,371 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:50:44,371 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:44,371 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:44,371 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:44,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:50:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:50:45,078 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 22 proven. 348 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2019-10-07 00:50:45,078 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:45,078 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:50:45,078 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:45,585 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-07 00:50:45,585 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:50:45,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 58 conjunts are in the unsatisfiable core [2019-10-07 00:50:45,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:50:45,681 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:45,938 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:46,881 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:46,885 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:51:00,600 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 49 [2019-10-07 00:51:25,777 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 56 proven. 366 refuted. 4 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-07 00:51:25,777 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:51:38,886 WARN L191 SmtUtils]: Spent 6.41 s on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-10-07 00:51:45,307 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2019-10-07 00:51:46,691 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (< c_main_~j~0 c_main_~MINVAL~0)) (.cse5 (<= c_main_~MINVAL~0 c_main_~j~0))) (and (or .cse0 (forall ((v_main_~j~0_375 Int) (v_prenex_1266 Int) (v_prenex_1265 Int)) (or (< v_prenex_1266 (+ c_main_~i~0 1)) (= 0 (select (let ((.cse2 (* 8 v_prenex_1266))) (store (store (let ((.cse1 (* 8 c_main_~i~0))) (store (store (select |c_#memory_int| |c_main_~#volArray~0.base|) (+ |c_main_~#volArray~0.offset| .cse1 (* (- 4) c_main_~j~0)) c_main_~j~0) (+ |c_main_~#volArray~0.offset| .cse1 (* (- 4) v_main_~j~0_375)) 0)) (+ |c_main_~#volArray~0.offset| .cse2 (- 8)) 2) (+ |c_main_~#volArray~0.offset| .cse2 (* (- 4) v_prenex_1265)) v_prenex_1265)) (+ |c_main_~#volArray~0.offset| 36))) (< c_main_~j~0 (+ v_main_~j~0_375 1)) (< v_prenex_1265 c_main_~MINVAL~0) (< 1 v_prenex_1265)))) (or (forall ((v_main_~i~0_551 Int) (v_main_~j~0_375 Int) (v_prenex_1264 Int)) (or (< c_main_~j~0 (+ v_main_~j~0_375 1)) (= (select (let ((.cse4 (* 8 v_main_~i~0_551))) (store (store (let ((.cse3 (* 8 c_main_~i~0))) (store (store (select |c_#memory_int| |c_main_~#volArray~0.base|) (+ |c_main_~#volArray~0.offset| .cse3 (* (- 4) c_main_~j~0)) c_main_~j~0) (+ |c_main_~#volArray~0.offset| .cse3 (* (- 4) v_main_~j~0_375)) 0)) (+ |c_main_~#volArray~0.offset| .cse4 (- 8)) 0) (+ |c_main_~#volArray~0.offset| .cse4 (* (- 4) v_prenex_1264)) 0)) (+ |c_main_~#volArray~0.offset| 36)) 0) (< v_main_~i~0_551 (+ c_main_~i~0 1)) (< 1 v_prenex_1264))) .cse0) (or .cse5 (forall ((v_prenex_1274 Int) (v_prenex_1273 Int) (v_prenex_1272 Int)) (or (< c_main_~j~0 (+ v_prenex_1272 1)) (< v_prenex_1272 c_main_~MINVAL~0) (= 0 (select (let ((.cse7 (* 8 v_prenex_1274))) (store (store (let ((.cse6 (* 8 c_main_~i~0))) (store (store (select |c_#memory_int| |c_main_~#volArray~0.base|) (+ |c_main_~#volArray~0.offset| .cse6 (* (- 4) c_main_~j~0)) 0) (+ |c_main_~#volArray~0.offset| .cse6 (* (- 4) v_prenex_1272)) v_prenex_1272)) (+ |c_main_~#volArray~0.offset| .cse7 (- 8)) 0) (+ |c_main_~#volArray~0.offset| .cse7 (* (- 4) v_prenex_1273)) 0)) (+ |c_main_~#volArray~0.offset| 36))) (< v_prenex_1274 (+ c_main_~i~0 1)) (< 1 v_prenex_1273)))) (or (forall ((v_prenex_1276 Int) (v_prenex_1275 Int) (v_prenex_1272 Int)) (or (< v_prenex_1275 (+ c_main_~i~0 1)) (< 1 v_prenex_1276) (< c_main_~j~0 (+ v_prenex_1272 1)) (< v_prenex_1276 c_main_~MINVAL~0) (= (select (let ((.cse9 (* 8 v_prenex_1275))) (store (store (let ((.cse8 (* 8 c_main_~i~0))) (store (store (select |c_#memory_int| |c_main_~#volArray~0.base|) (+ |c_main_~#volArray~0.offset| .cse8 (* (- 4) c_main_~j~0)) 0) (+ |c_main_~#volArray~0.offset| .cse8 (* (- 4) v_prenex_1272)) 0)) (+ |c_main_~#volArray~0.offset| .cse9 (- 8)) 2) (+ |c_main_~#volArray~0.offset| .cse9 (* (- 4) v_prenex_1276)) v_prenex_1276)) (+ |c_main_~#volArray~0.offset| 36)) 0))) .cse5) (or .cse0 (forall ((v_prenex_1268 Int) (v_main_~j~0_375 Int) (v_prenex_1267 Int)) (or (< v_prenex_1267 (+ c_main_~i~0 1)) (< c_main_~j~0 (+ v_main_~j~0_375 1)) (< v_main_~j~0_375 c_main_~MINVAL~0) (= 0 (select (let ((.cse11 (* 8 v_prenex_1267))) (store (store (let ((.cse10 (* 8 c_main_~i~0))) (store (store (select |c_#memory_int| |c_main_~#volArray~0.base|) (+ |c_main_~#volArray~0.offset| .cse10 (* (- 4) c_main_~j~0)) c_main_~j~0) (+ |c_main_~#volArray~0.offset| .cse10 (* (- 4) v_main_~j~0_375)) v_main_~j~0_375)) (+ |c_main_~#volArray~0.offset| .cse11 (- 8)) 0) (+ |c_main_~#volArray~0.offset| .cse11 (* (- 4) v_prenex_1268)) 0)) (+ |c_main_~#volArray~0.offset| 36))) (< 1 v_prenex_1268)))) (or .cse5 (forall ((v_prenex_1277 Int) (v_prenex_1272 Int) (v_prenex_1271 Int)) (or (< v_prenex_1271 (+ c_main_~i~0 1)) (< c_main_~j~0 (+ v_prenex_1272 1)) (= 0 (select (let ((.cse13 (* 8 v_prenex_1271))) (store (store (let ((.cse12 (* 8 c_main_~i~0))) (store (store (select |c_#memory_int| |c_main_~#volArray~0.base|) (+ |c_main_~#volArray~0.offset| .cse12 (* (- 4) c_main_~j~0)) 0) (+ |c_main_~#volArray~0.offset| .cse12 (* (- 4) v_prenex_1272)) 0)) (+ |c_main_~#volArray~0.offset| .cse13 (- 8)) 0) (+ |c_main_~#volArray~0.offset| .cse13 (* (- 4) v_prenex_1277)) 0)) (+ |c_main_~#volArray~0.offset| 36))) (< 1 v_prenex_1277)))))) is different from false [2019-10-07 00:51:52,604 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 146 DAG size of output: 78 [2019-10-07 00:51:54,610 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_main_~i~0_551 Int) (v_main_~i~0_552 Int) (v_prenex_1278 Int) (v_prenex_1264 Int)) (or (< v_main_~i~0_552 (+ c_main_~i~0 1)) (< 1 v_prenex_1278) (< v_main_~i~0_551 (+ v_main_~i~0_552 1)) (= (select (let ((.cse1 (* 8 v_main_~i~0_551))) (store (store (let ((.cse0 (* 8 v_main_~i~0_552))) (store (store (select |c_#memory_int| |c_main_~#volArray~0.base|) (+ |c_main_~#volArray~0.offset| .cse0 (- 8)) 2) (+ |c_main_~#volArray~0.offset| .cse0 (* (- 4) v_prenex_1278)) 0)) (+ |c_main_~#volArray~0.offset| .cse1 (- 8)) 0) (+ |c_main_~#volArray~0.offset| .cse1 (* (- 4) v_prenex_1264)) 0)) (+ |c_main_~#volArray~0.offset| 36)) 0) (< 1 v_prenex_1264))) (forall ((v_main_~i~0_552 Int) (v_main_~j~0_375 Int) (v_prenex_1266 Int) (v_prenex_1265 Int)) (or (< v_main_~i~0_552 (+ c_main_~i~0 1)) (= 0 (select (let ((.cse3 (* 8 v_prenex_1266))) (store (store (let ((.cse2 (* 8 v_main_~i~0_552))) (store (store (select |c_#memory_int| |c_main_~#volArray~0.base|) (+ |c_main_~#volArray~0.offset| .cse2 (- 8)) 2) (+ |c_main_~#volArray~0.offset| .cse2 (* (- 4) v_main_~j~0_375)) 0)) (+ |c_main_~#volArray~0.offset| .cse3 (- 8)) 2) (+ |c_main_~#volArray~0.offset| .cse3 (* (- 4) v_prenex_1265)) v_prenex_1265)) (+ |c_main_~#volArray~0.offset| 36))) (< 1 v_main_~j~0_375) (< v_prenex_1265 c_main_~MINVAL~0) (< v_prenex_1266 (+ v_main_~i~0_552 1)) (< 1 v_prenex_1265))) (forall ((v_main_~i~0_552 Int) (v_prenex_1279 Int) (v_prenex_1268 Int) (v_prenex_1267 Int)) (or (< v_main_~i~0_552 (+ c_main_~i~0 1)) (< v_prenex_1267 (+ v_main_~i~0_552 1)) (< 1 v_prenex_1279) (< 1 v_prenex_1268) (= 0 (select (let ((.cse5 (* 8 v_prenex_1267))) (store (store (let ((.cse4 (* 8 v_main_~i~0_552))) (store (store (select |c_#memory_int| |c_main_~#volArray~0.base|) (+ |c_main_~#volArray~0.offset| .cse4 (- 8)) 2) (+ |c_main_~#volArray~0.offset| .cse4 (* (- 4) v_prenex_1279)) v_prenex_1279)) (+ |c_main_~#volArray~0.offset| .cse5 (- 8)) 0) (+ |c_main_~#volArray~0.offset| .cse5 (* (- 4) v_prenex_1268)) 0)) (+ |c_main_~#volArray~0.offset| 36))) (< v_prenex_1279 c_main_~MINVAL~0)))) is different from false