java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/array-tiling/nr5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 00:42:41,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 00:42:41,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 00:42:41,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 00:42:41,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 00:42:41,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 00:42:41,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 00:42:41,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 00:42:41,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 00:42:41,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 00:42:41,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 00:42:41,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 00:42:41,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 00:42:41,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 00:42:41,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 00:42:41,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 00:42:41,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 00:42:41,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 00:42:41,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 00:42:41,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 00:42:41,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 00:42:41,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 00:42:41,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 00:42:41,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 00:42:41,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 00:42:41,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 00:42:41,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 00:42:41,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 00:42:41,295 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 00:42:41,319 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 00:42:41,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 00:42:41,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 00:42:41,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 00:42:41,321 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 00:42:41,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 00:42:41,321 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 00:42:41,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 00:42:41,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 00:42:41,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 00:42:41,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 00:42:41,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 00:42:41,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 00:42:41,323 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 00:42:41,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 00:42:41,323 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 00:42:41,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 00:42:41,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 00:42:41,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 00:42:41,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 00:42:41,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 00:42:41,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 00:42:41,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 00:42:41,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 00:42:41,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 00:42:41,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 00:42:41,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 00:42:41,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 00:42:41,326 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 00:42:41,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 00:42:41,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 00:42:41,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 00:42:41,617 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 00:42:41,618 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 00:42:41,618 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/nr5.c [2019-10-07 00:42:41,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea4e68719/0088920b12e741de8e3e9df5c2a81423/FLAGf98caa382 [2019-10-07 00:42:42,070 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 00:42:42,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/nr5.c [2019-10-07 00:42:42,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea4e68719/0088920b12e741de8e3e9df5c2a81423/FLAGf98caa382 [2019-10-07 00:42:42,415 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea4e68719/0088920b12e741de8e3e9df5c2a81423 [2019-10-07 00:42:42,424 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 00:42:42,426 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 00:42:42,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 00:42:42,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 00:42:42,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 00:42:42,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:42:42" (1/1) ... [2019-10-07 00:42:42,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ae5a79e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:42, skipping insertion in model container [2019-10-07 00:42:42,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:42:42" (1/1) ... [2019-10-07 00:42:42,441 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 00:42:42,457 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 00:42:42,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:42:42,631 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 00:42:42,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:42:42,683 INFO L192 MainTranslator]: Completed translation [2019-10-07 00:42:42,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:42 WrapperNode [2019-10-07 00:42:42,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 00:42:42,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 00:42:42,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 00:42:42,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 00:42:42,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:42" (1/1) ... [2019-10-07 00:42:42,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:42" (1/1) ... [2019-10-07 00:42:42,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:42" (1/1) ... [2019-10-07 00:42:42,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:42" (1/1) ... [2019-10-07 00:42:42,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:42" (1/1) ... [2019-10-07 00:42:42,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:42" (1/1) ... [2019-10-07 00:42:42,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:42" (1/1) ... [2019-10-07 00:42:42,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 00:42:42,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 00:42:42,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 00:42:42,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 00:42:42,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:42" (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 00:42:42,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 00:42:42,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 00:42:42,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 00:42:42,882 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 00:42:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 00:42:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 00:42:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 00:42:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 00:42:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 00:42:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 00:42:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 00:42:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 00:42:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 00:42:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 00:42:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 00:42:43,315 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 00:42:43,315 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-07 00:42:43,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:42:43 BoogieIcfgContainer [2019-10-07 00:42:43,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 00:42:43,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 00:42:43,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 00:42:43,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 00:42:43,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:42:42" (1/3) ... [2019-10-07 00:42:43,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18663752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:42:43, skipping insertion in model container [2019-10-07 00:42:43,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:42" (2/3) ... [2019-10-07 00:42:43,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18663752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:42:43, skipping insertion in model container [2019-10-07 00:42:43,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:42:43" (3/3) ... [2019-10-07 00:42:43,327 INFO L109 eAbstractionObserver]: Analyzing ICFG nr5.c [2019-10-07 00:42:43,337 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 00:42:43,346 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 00:42:43,358 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 00:42:43,395 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 00:42:43,395 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 00:42:43,395 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 00:42:43,395 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 00:42:43,395 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 00:42:43,396 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 00:42:43,396 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 00:42:43,396 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 00:42:43,418 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-07 00:42:43,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-07 00:42:43,427 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:42:43,428 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:42:43,432 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:42:43,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:42:43,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1436172912, now seen corresponding path program 1 times [2019-10-07 00:42:43,444 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:42:43,445 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:43,445 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:43,445 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:43,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:42:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:42:43,761 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 00:42:43,762 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:43,763 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:42:43,763 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 00:42:43,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 00:42:43,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 00:42:43,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 00:42:43,785 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-10-07 00:42:43,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:42:43,894 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2019-10-07 00:42:43,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 00:42:43,897 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-10-07 00:42:43,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:42:43,907 INFO L225 Difference]: With dead ends: 44 [2019-10-07 00:42:43,907 INFO L226 Difference]: Without dead ends: 20 [2019-10-07 00:42:43,915 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 00:42:43,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-07 00:42:43,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-10-07 00:42:43,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-07 00:42:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-10-07 00:42:43,960 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2019-10-07 00:42:43,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:42:43,961 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-10-07 00:42:43,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 00:42:43,962 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-10-07 00:42:43,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-07 00:42:43,963 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:42:43,963 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:42:43,963 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:42:43,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:42:43,964 INFO L82 PathProgramCache]: Analyzing trace with hash -519328614, now seen corresponding path program 1 times [2019-10-07 00:42:43,964 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:42:43,965 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:43,965 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:43,965 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:43,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:42:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:42:44,027 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 00:42:44,028 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:44,029 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:42:44,029 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 00:42:44,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 00:42:44,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 00:42:44,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:42:44,032 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2019-10-07 00:42:44,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:42:44,046 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2019-10-07 00:42:44,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 00:42:44,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-07 00:42:44,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:42:44,048 INFO L225 Difference]: With dead ends: 31 [2019-10-07 00:42:44,048 INFO L226 Difference]: Without dead ends: 20 [2019-10-07 00:42:44,049 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 00:42:44,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-07 00:42:44,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-10-07 00:42:44,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-07 00:42:44,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2019-10-07 00:42:44,055 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15 [2019-10-07 00:42:44,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:42:44,056 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2019-10-07 00:42:44,056 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 00:42:44,056 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2019-10-07 00:42:44,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-07 00:42:44,057 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:42:44,057 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:42:44,057 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:42:44,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:42:44,058 INFO L82 PathProgramCache]: Analyzing trace with hash 984169796, now seen corresponding path program 1 times [2019-10-07 00:42:44,058 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:42:44,058 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:44,058 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:44,058 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:44,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:42:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:42:44,147 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 00:42:44,148 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:44,148 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:42:44,148 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 00:42:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:42:44,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 00:42:44,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:42:44,244 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 00:42:44,244 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:42:44,291 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 00:42:44,292 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:42:44,346 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-07 00:42:44,347 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:42:44,355 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:42:44,366 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:42:44,367 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:42:44,564 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:42:44,921 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,286 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,300 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,318 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,351 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,745 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,778 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,792 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,800 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,899 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,912 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,924 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,939 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:45,951 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:46,309 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:46,361 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:46,370 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:46,377 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:46,464 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:46,473 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:46,681 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 42 for LOIs [2019-10-07 00:42:46,702 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:42:46,716 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:42:46,716 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:42:46,716 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 00:42:46,717 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 244#(and (exists ((v_prenex_6 Int) (v_prenex_5 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_1| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#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| 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) (<= 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_~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 00:42:46,717 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 230#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~j~0 5) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:42:46,719 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 253#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:42:46,719 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 00:42:46,720 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 249#(and (exists ((v_prenex_6 Int) (v_prenex_5 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_1| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#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| 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) (<= 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_~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 00:42:46,720 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 239#(and (exists ((v_prenex_6 Int) (v_prenex_5 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_1| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#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| 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) (<= 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 00:42:46,721 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 00:42:46,721 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 00:42:46,721 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 258#(and (= ~CELLCOUNT~0 0) (= |#valid| (store |old(#valid)| 0 0)) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:46,722 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 00:42:46,723 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:42:46,723 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 00:42:46,724 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 234#(exists ((v_prenex_6 Int) (v_prenex_5 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_1| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#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| 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) (<= 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 00:42:46,724 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) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (= |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) (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 1 ~CELLCOUNT~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|)) (not (= (ite (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) 1 0) 0)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (<= 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) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:42:47,164 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:42:47,605 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:42:47,605 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 12] total 18 [2019-10-07 00:42:47,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-07 00:42:47,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-07 00:42:47,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2019-10-07 00:42:47,613 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 18 states. [2019-10-07 00:42:47,959 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-10-07 00:42:48,147 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-10-07 00:42:48,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:42:48,916 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2019-10-07 00:42:48,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-07 00:42:48,917 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 16 [2019-10-07 00:42:48,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:42:48,918 INFO L225 Difference]: With dead ends: 45 [2019-10-07 00:42:48,919 INFO L226 Difference]: Without dead ends: 33 [2019-10-07 00:42:48,921 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2019-10-07 00:42:48,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-07 00:42:48,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 23. [2019-10-07 00:42:48,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-07 00:42:48,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2019-10-07 00:42:48,937 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 16 [2019-10-07 00:42:48,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:42:48,938 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2019-10-07 00:42:48,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-07 00:42:48,938 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2019-10-07 00:42:48,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-07 00:42:48,941 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:42:48,941 INFO L385 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:42:49,154 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:42:49,154 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:42:49,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:42:49,155 INFO L82 PathProgramCache]: Analyzing trace with hash 608143130, now seen corresponding path program 2 times [2019-10-07 00:42:49,155 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:42:49,155 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:49,156 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:49,156 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:49,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:42:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:42:49,257 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:42:49,257 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:49,257 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:42:49,258 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 00:42:49,324 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-10-07 00:42:49,325 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:42:49,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-07 00:42:49,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:42:49,335 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:42:49,336 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:42:49,362 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:42:49,363 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:42:49,365 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-07 00:42:49,365 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:42:49,367 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:42:49,368 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:42:49,368 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:42:49,435 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 25 for LOIs [2019-10-07 00:42:49,627 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:49,886 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:49,933 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:49,946 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:49,958 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,155 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,163 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,172 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,211 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,302 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,328 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,338 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,359 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,382 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,628 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,645 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,654 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,664 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,744 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,775 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,783 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,791 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,798 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:50,945 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 42 for LOIs [2019-10-07 00:42:50,955 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:42:50,963 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:42:50,964 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:42:50,964 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 00:42:50,964 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) (exists ((v_prenex_15 Int) (v_prenex_14 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_2| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 0))) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 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)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (<= 2 (select (select |#memory_int| v_prenex_15) 0))) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (= 0 (select (select |#memory_int| v_prenex_15) 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 2 (select (select |#memory_int| v_prenex_14) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:42:50,964 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_~j~0 5) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:42:50,965 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 00:42:50,965 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 00:42:50,965 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) (exists ((v_prenex_15 Int) (v_prenex_14 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_2| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 0))) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 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)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (<= 2 (select (select |#memory_int| v_prenex_15) 0))) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (= 0 (select (select |#memory_int| v_prenex_15) 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 2 (select (select |#memory_int| v_prenex_14) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:42:50,973 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 236#(and (exists ((v_prenex_15 Int) (v_prenex_14 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_2| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 0))) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 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)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (<= 2 (select (select |#memory_int| v_prenex_15) 0))) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (= 0 (select (select |#memory_int| v_prenex_15) 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 2 (select (select |#memory_int| v_prenex_14) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:42:50,973 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 00:42:50,973 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 00:42:50,974 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 00:42:50,974 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 00:42:50,974 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:42:50,974 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 00:42:50,974 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 231#(exists ((v_prenex_15 Int) (v_prenex_14 Int) (|v_main_~#volArray~0.base_BEFORE_CALL_2| Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (not (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_2|) 0))) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 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)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (<= 2 (select (select |#memory_int| v_prenex_15) 0))) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (= 0 (select (select |#memory_int| v_prenex_15) 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (< 0 ~CELLCOUNT~0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 2 (select (select |#memory_int| v_prenex_14) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:42:50,975 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) (= 0 |#NULL.base|) (<= 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) (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) (= (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|)) (not (= (ite (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) 1 0) 0)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (<= 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 00:42:51,707 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:42:51,708 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 12] total 19 [2019-10-07 00:42:51,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-07 00:42:51,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-07 00:42:51,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2019-10-07 00:42:51,710 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 19 states. [2019-10-07 00:42:51,983 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2019-10-07 00:42:52,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:42:52,806 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2019-10-07 00:42:52,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 00:42:52,807 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 19 [2019-10-07 00:42:52,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:42:52,808 INFO L225 Difference]: With dead ends: 49 [2019-10-07 00:42:52,808 INFO L226 Difference]: Without dead ends: 34 [2019-10-07 00:42:52,810 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 41 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2019-10-07 00:42:52,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-07 00:42:52,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 24. [2019-10-07 00:42:52,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-07 00:42:52,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2019-10-07 00:42:52,819 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 19 [2019-10-07 00:42:52,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:42:52,819 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2019-10-07 00:42:52,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-07 00:42:52,819 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2019-10-07 00:42:52,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-07 00:42:52,820 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:42:52,820 INFO L385 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:42:53,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:42:53,025 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:42:53,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:42:53,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1576055492, now seen corresponding path program 3 times [2019-10-07 00:42:53,025 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:42:53,026 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:53,026 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:53,026 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:53,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:42:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:42:53,591 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:42:53,592 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:53,592 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:42:53,592 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:42:53,655 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-07 00:42:53,655 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:42:53,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 32 conjunts are in the unsatisfiable core [2019-10-07 00:42:53,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:42:53,773 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:53,877 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:54,145 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:54,415 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:42:54,415 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:42:58,838 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 31 [2019-10-07 00:42:59,068 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 30 [2019-10-07 00:42:59,212 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:42:59,213 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:42:59,214 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-07 00:42:59,215 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:42:59,215 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:42:59,215 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:42:59,216 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:42:59,241 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:42:59,356 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:59,602 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:59,613 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:59,653 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:59,662 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:59,857 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:59,875 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:59,881 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:59,886 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:59,964 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:59,969 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:00,140 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:00,147 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:00,154 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:00,189 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:00,263 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:00,272 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:00,280 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:00,287 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:00,314 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:00,426 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 42 for LOIs [2019-10-07 00:43:00,434 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:43:00,441 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:43:00,441 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:43:00,441 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 00:43:00,442 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 244#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((|v_main_~#volArray~0.base_BEFORE_CALL_3| Int) (v_prenex_30 Int) (v_prenex_31 Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (not (= 0 (select (select |#memory_int| v_prenex_31) 0))) (not (<= 2 (select (select |#memory_int| v_prenex_31) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (<= 2 (select (select |#memory_int| v_prenex_30) 0))) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (= 0 (select (select |#memory_int| v_prenex_30) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_3|) 0)) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:43:00,442 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 230#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~j~0 5) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:43:00,442 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 253#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:43:00,442 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 183#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= 0 main_~i~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= main_~i~0 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0)) [2019-10-07 00:43:00,443 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 249#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((|v_main_~#volArray~0.base_BEFORE_CALL_3| Int) (v_prenex_30 Int) (v_prenex_31 Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (not (= 0 (select (select |#memory_int| v_prenex_31) 0))) (not (<= 2 (select (select |#memory_int| v_prenex_31) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (<= 2 (select (select |#memory_int| v_prenex_30) 0))) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (= 0 (select (select |#memory_int| v_prenex_30) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_3|) 0)) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:43:00,443 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 239#(and (exists ((|v_main_~#volArray~0.base_BEFORE_CALL_3| Int) (v_prenex_30 Int) (v_prenex_31 Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (not (= 0 (select (select |#memory_int| v_prenex_31) 0))) (not (<= 2 (select (select |#memory_int| v_prenex_31) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (<= 2 (select (select |#memory_int| v_prenex_30) 0))) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (= 0 (select (select |#memory_int| v_prenex_30) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_3|) 0)) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:43:00,443 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 00:43:00,443 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 00:43:00,443 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 258#(and (= ~CELLCOUNT~0 0) (= |#valid| (store |old(#valid)| 0 0)) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:43:00,444 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 191#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= main_~i~0 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0)) [2019-10-07 00:43:00,444 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:43:00,444 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 00:43:00,444 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 234#(exists ((|v_main_~#volArray~0.base_BEFORE_CALL_3| Int) (v_prenex_30 Int) (v_prenex_31 Int)) (or (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (not (= 0 (select (select |#memory_int| v_prenex_31) 0))) (not (<= 2 (select (select |#memory_int| v_prenex_31) 0))) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (not (<= 2 (select (select |#memory_int| v_prenex_30) 0))) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (= 0 (select (select |#memory_int| v_prenex_30) 0)) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (= |#NULL.base| 0) (<= 1 ~CELLCOUNT~0) (<= 2 (select (select |#memory_int| |v_main_~#volArray~0.base_BEFORE_CALL_3|) 0)) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (< 0 ~CELLCOUNT~0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:43:00,444 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 178#(and (or (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (= main_~DEFAULTVALUE~0 1) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (= |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) (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 1 ~CELLCOUNT~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|)) (not (= (ite (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) 1 0) 0)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (<= 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) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0)) [2019-10-07 00:43:01,092 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:43:01,690 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:43:01,690 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 13, 12] total 43 [2019-10-07 00:43:01,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-10-07 00:43:01,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-10-07 00:43:01,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=1570, Unknown=4, NotChecked=0, Total=1806 [2019-10-07 00:43:01,694 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 43 states. [2019-10-07 00:43:02,071 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2019-10-07 00:43:02,246 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2019-10-07 00:43:03,071 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2019-10-07 00:43:03,312 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2019-10-07 00:43:03,773 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2019-10-07 00:43:04,348 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-10-07 00:43:04,608 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-10-07 00:43:05,001 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-10-07 00:43:05,160 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-10-07 00:43:05,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:43:05,652 INFO L93 Difference]: Finished difference Result 61 states and 71 transitions. [2019-10-07 00:43:05,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-10-07 00:43:05,653 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 20 [2019-10-07 00:43:05,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:43:05,656 INFO L225 Difference]: With dead ends: 61 [2019-10-07 00:43:05,657 INFO L226 Difference]: Without dead ends: 59 [2019-10-07 00:43:05,659 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1105 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=601, Invalid=3951, Unknown=4, NotChecked=0, Total=4556 [2019-10-07 00:43:05,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-10-07 00:43:05,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 43. [2019-10-07 00:43:05,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-07 00:43:05,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2019-10-07 00:43:05,677 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 20 [2019-10-07 00:43:05,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:43:05,678 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2019-10-07 00:43:05,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-10-07 00:43:05,678 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2019-10-07 00:43:05,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-07 00:43:05,680 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:43:05,680 INFO L385 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:43:05,883 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:43:05,884 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:43:05,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:43:05,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1455444799, now seen corresponding path program 1 times [2019-10-07 00:43:05,885 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:43:05,885 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:43:05,886 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:43:05,886 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:43:05,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:43:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:43:06,830 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:43:06,831 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:43:06,831 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:43:06,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:43:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:43:06,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 48 conjunts are in the unsatisfiable core [2019-10-07 00:43:06,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:43:06,952 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:07,065 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:07,292 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:07,573 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:07,867 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:08,065 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:08,344 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:08,610 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:11,438 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:43:11,438 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:43:43,613 WARN L191 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2019-10-07 00:43:43,903 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 44 [2019-10-07 00:43:44,288 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 43 [2019-10-07 00:43:44,548 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 33 proven. 37 refuted. 3 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:43:44,548 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:43:44,550 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:43:44,550 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:43:44,551 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:43:44,551 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:43:44,551 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:43:44,581 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 25 for LOIs [2019-10-07 00:43:44,664 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:44,821 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:44,845 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:44,856 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:44,867 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:45,028 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:45,040 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:45,045 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:45,050 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:45,091 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:45,098 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:45,105 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:45,122 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:45,143 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:46,240 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:46,246 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:46,253 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:46,283 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:46,332 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:46,340 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:46,353 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:46,361 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:46,385 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:43:46,500 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:43:46,530 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:43:46,533 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:43:46,533 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:43:46,533 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 00:43:46,534 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 00:43:46,534 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_~j~0 5) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:43:46,534 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 00:43:46,534 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 00:43:46,534 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 00:43:46,535 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 00:43:46,535 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 00:43:46,535 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 00:43:46,535 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 00:43:46,536 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 00:43:46,536 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 00:43:46,536 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 00:43:46,536 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 00:43:46,536 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:43:46,536 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 00:43:46,537 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 00:43:46,537 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) (= 0 |#NULL.base|) (<= 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) (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) (= (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|)) (not (= (ite (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) 1 0) 0)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (<= 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 00:43:47,794 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:43:48,449 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:43:48,449 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23, 21, 14] total 68 [2019-10-07 00:43:48,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 68 states [2019-10-07 00:43:48,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2019-10-07 00:43:48,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=581, Invalid=3953, Unknown=22, NotChecked=0, Total=4556 [2019-10-07 00:43:48,453 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 68 states. [2019-10-07 00:43:48,787 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2019-10-07 00:43:48,960 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-10-07 00:43:50,010 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-10-07 00:43:50,284 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-10-07 00:43:50,641 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-10-07 00:43:50,961 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-10-07 00:43:51,305 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-10-07 00:43:51,690 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-10-07 00:44:06,978 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2019-10-07 00:44:14,145 WARN L191 SmtUtils]: Spent 4.10 s on a formula simplification. DAG size of input: 107 DAG size of output: 86 [2019-10-07 00:44:18,370 WARN L191 SmtUtils]: Spent 4.12 s on a formula simplification. DAG size of input: 108 DAG size of output: 87 [2019-10-07 00:44:22,925 WARN L191 SmtUtils]: Spent 4.19 s on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2019-10-07 00:44:27,200 WARN L191 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2019-10-07 00:44:31,999 WARN L191 SmtUtils]: Spent 4.14 s on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2019-10-07 00:44:36,207 WARN L191 SmtUtils]: Spent 4.14 s on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2019-10-07 00:44:44,776 WARN L191 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2019-10-07 00:44:50,966 WARN L191 SmtUtils]: Spent 4.12 s on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-10-07 00:44:55,340 WARN L191 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-10-07 00:44:55,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:44:55,346 INFO L93 Difference]: Finished difference Result 96 states and 111 transitions. [2019-10-07 00:44:55,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2019-10-07 00:44:55,347 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 34 [2019-10-07 00:44:55,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:44:55,351 INFO L225 Difference]: With dead ends: 96 [2019-10-07 00:44:55,351 INFO L226 Difference]: Without dead ends: 94 [2019-10-07 00:44:55,356 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 56 SyntacticMatches, 5 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4469 ImplicationChecksByTransitivity, 93.8s TimeCoverageRelationStatistics Valid=1816, Invalid=13408, Unknown=28, NotChecked=0, Total=15252 [2019-10-07 00:44:55,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-10-07 00:44:55,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 81. [2019-10-07 00:44:55,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-10-07 00:44:55,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 95 transitions. [2019-10-07 00:44:55,387 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 95 transitions. Word has length 34 [2019-10-07 00:44:55,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:44:55,387 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 95 transitions. [2019-10-07 00:44:55,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 68 states. [2019-10-07 00:44:55,388 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 95 transitions. [2019-10-07 00:44:55,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-07 00:44:55,389 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:44:55,389 INFO L385 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:44:55,593 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:44:55,593 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:44:55,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:44:55,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1272616275, now seen corresponding path program 2 times [2019-10-07 00:44:55,594 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:44:55,594 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:44:55,595 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:44:55,595 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:44:55,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:44:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:44:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 31 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 00:44:55,862 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:44:55,862 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:44:55,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:44:55,981 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-10-07 00:44:55,982 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:44:55,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 29 conjunts are in the unsatisfiable core [2019-10-07 00:44:55,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:44:56,132 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:56,261 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2019-10-07 00:44:58,493 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 27 refuted. 4 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 00:44:58,493 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:44:59,189 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 00:44:59,189 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:44:59,190 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:44:59,191 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:44:59,191 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:44:59,191 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:44:59,191 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:44:59,210 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:44:59,284 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:59,441 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:59,461 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:59,470 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:59,479 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:59,624 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:59,633 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:59,640 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:59,661 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:59,705 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:59,714 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:59,724 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:59,733 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:44:59,739 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:00,639 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:00,645 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:00,652 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:00,664 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:00,743 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:00,747 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:00,827 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:45:00,857 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:45:00,860 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:45:00,860 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:45:00,861 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 00:45:00,861 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 589#(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 00:45:00,861 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 565#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~j~0 5) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:45:00,861 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 598#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:45:00,861 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 584#(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 00:45:00,862 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 579#(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 00:45:00,862 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 00:45:00,862 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 594#(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 00:45:00,862 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 574#(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 00:45:00,862 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 00:45:00,863 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 00:45:00,863 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 00:45:00,863 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 00:45:00,863 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 603#(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 00:45:00,863 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:45:00,864 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 00:45:00,864 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 569#(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 00:45:00,864 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) (= 0 |#NULL.base|) (<= 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) (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) (= (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|)) (not (= (ite (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) 1 0) 0)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (<= 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 00:45:01,886 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:45:02,255 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2019-10-07 00:45:02,507 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:45:02,508 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 13, 14] total 51 [2019-10-07 00:45:02,509 INFO L442 AbstractCegarLoop]: Interpolant automaton has 51 states [2019-10-07 00:45:02,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2019-10-07 00:45:02,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=2315, Unknown=1, NotChecked=0, Total=2550 [2019-10-07 00:45:02,510 INFO L87 Difference]: Start difference. First operand 81 states and 95 transitions. Second operand 51 states. [2019-10-07 00:45:02,817 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2019-10-07 00:45:02,980 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-10-07 00:45:03,373 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2019-10-07 00:45:03,634 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2019-10-07 00:45:03,863 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 71 [2019-10-07 00:45:04,109 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2019-10-07 00:45:05,788 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2019-10-07 00:45:07,040 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 51 [2019-10-07 00:45:07,205 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2019-10-07 00:45:07,373 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 51 [2019-10-07 00:45:07,787 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 46 [2019-10-07 00:45:08,388 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 54 [2019-10-07 00:45:08,559 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2019-10-07 00:45:09,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:45:09,121 INFO L93 Difference]: Finished difference Result 141 states and 170 transitions. [2019-10-07 00:45:09,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-07 00:45:09,122 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 41 [2019-10-07 00:45:09,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:45:09,124 INFO L225 Difference]: With dead ends: 141 [2019-10-07 00:45:09,124 INFO L226 Difference]: Without dead ends: 139 [2019-10-07 00:45:09,126 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 85 SyntacticMatches, 8 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2183 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=932, Invalid=6723, Unknown=1, NotChecked=0, Total=7656 [2019-10-07 00:45:09,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-10-07 00:45:09,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 93. [2019-10-07 00:45:09,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-10-07 00:45:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 111 transitions. [2019-10-07 00:45:09,161 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 111 transitions. Word has length 41 [2019-10-07 00:45:09,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:45:09,162 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 111 transitions. [2019-10-07 00:45:09,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 51 states. [2019-10-07 00:45:09,162 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2019-10-07 00:45:09,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-07 00:45:09,163 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:45:09,164 INFO L385 BasicCegarLoop]: trace histogram [11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:45:09,367 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:45:09,368 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:45:09,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:45:09,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1051930606, now seen corresponding path program 3 times [2019-10-07 00:45:09,369 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:45:09,369 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:45:09,369 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:45:09,369 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:45:09,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:45:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:45:09,433 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-07 00:45:09,433 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:45:09,433 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:45:09,433 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 00:45:09,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 00:45:09,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 00:45:09,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-10-07 00:45:09,436 INFO L87 Difference]: Start difference. First operand 93 states and 111 transitions. Second operand 8 states. [2019-10-07 00:45:09,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:45:09,484 INFO L93 Difference]: Finished difference Result 158 states and 189 transitions. [2019-10-07 00:45:09,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 00:45:09,484 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-10-07 00:45:09,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:45:09,485 INFO L225 Difference]: With dead ends: 158 [2019-10-07 00:45:09,485 INFO L226 Difference]: Without dead ends: 78 [2019-10-07 00:45:09,486 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-10-07 00:45:09,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-10-07 00:45:09,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2019-10-07 00:45:09,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-10-07 00:45:09,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2019-10-07 00:45:09,511 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 42 [2019-10-07 00:45:09,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:45:09,511 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2019-10-07 00:45:09,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 00:45:09,512 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2019-10-07 00:45:09,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-07 00:45:09,513 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:45:09,513 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:45:09,514 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:45:09,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:45:09,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1484143309, now seen corresponding path program 4 times [2019-10-07 00:45:09,514 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:45:09,514 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:45:09,514 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:45:09,515 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:45:09,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:45:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:45:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 37 proven. 14 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-10-07 00:45:09,907 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:45:09,907 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:45:09,907 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 00:45:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:45:10,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-07 00:45:10,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:45:10,312 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-10-07 00:45:10,313 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:45:10,455 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-10-07 00:45:10,455 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:45:10,456 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-07 00:45:10,457 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:45:10,457 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:45:10,457 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:45:10,457 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:45:10,483 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:45:10,557 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:10,787 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:10,814 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:10,824 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:10,832 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:10,980 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:11,004 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:11,010 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:11,017 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:11,100 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:11,106 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:11,917 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:11,947 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:11,954 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:11,960 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:12,011 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:12,018 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:12,142 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 19 for LOIs [2019-10-07 00:45:12,185 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:45:12,189 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:45:12,189 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:45:12,190 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 00:45:12,190 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 592#(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 00:45:12,190 INFO L193 IcfgInterpreter]: Reachable states at location L25-3 satisfy 568#(and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~DEFAULTVALUE~0 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~j~0 5) (= main_~DEFAULTVALUE~0 1) (<= main_~MINVAL~0 2) (<= 1 main_~DEFAULTVALUE~0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:45:12,190 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 601#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:45:12,191 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 587#(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 00:45:12,191 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 582#(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 00:45:12,191 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 597#(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 00:45:12,192 INFO L193 IcfgInterpreter]: Reachable states at location L38-3 satisfy 466#(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 00:45:12,192 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 577#(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 00:45:12,192 INFO L193 IcfgInterpreter]: Reachable states at location L40-3 satisfy 527#(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 00:45:12,192 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 00:45:12,193 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 00:45:12,193 INFO L193 IcfgInterpreter]: Reachable states at location L40-2 satisfy 400#(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 00:45:12,193 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 606#(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 00:45:12,193 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:45:12,194 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 00:45:12,194 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 572#(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 00:45:12,194 INFO L193 IcfgInterpreter]: Reachable states at location L23-3 satisfy 178#(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) (= 0 |#NULL.base|) (<= 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) (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) (= (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|)) (not (= (ite (= 0 (ite (and (< ~CELLCOUNT~0 0) (not (= (mod ~CELLCOUNT~0 5) 0))) (+ (mod ~CELLCOUNT~0 5) (- 5)) (mod ~CELLCOUNT~0 5))) 1 0) 0)) (= 1 main_~DEFAULTVALUE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (<= 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 00:45:12,693 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-10-07 00:45:13,062 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2019-10-07 00:45:13,634 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:45:13,634 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 10, 14] total 43 [2019-10-07 00:45:13,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-10-07 00:45:13,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-10-07 00:45:13,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1544, Unknown=0, NotChecked=0, Total=1806 [2019-10-07 00:45:13,636 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand 43 states. [2019-10-07 00:45:13,894 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2019-10-07 00:45:14,059 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-10-07 00:45:14,608 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2019-10-07 00:45:15,296 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2019-10-07 00:45:16,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:45:16,662 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2019-10-07 00:45:16,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-10-07 00:45:16,663 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 55 [2019-10-07 00:45:16,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:45:16,665 INFO L225 Difference]: With dead ends: 91 [2019-10-07 00:45:16,665 INFO L226 Difference]: Without dead ends: 58 [2019-10-07 00:45:16,667 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 128 SyntacticMatches, 6 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=681, Invalid=4149, Unknown=0, NotChecked=0, Total=4830 [2019-10-07 00:45:16,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-10-07 00:45:16,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 51. [2019-10-07 00:45:16,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-07 00:45:16,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2019-10-07 00:45:16,683 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 55 [2019-10-07 00:45:16,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:45:16,683 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2019-10-07 00:45:16,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-10-07 00:45:16,684 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2019-10-07 00:45:16,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-07 00:45:16,685 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:45:16,685 INFO L385 BasicCegarLoop]: trace histogram [10, 6, 6, 6, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:45:16,888 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:45:16,889 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:45:16,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:45:16,890 INFO L82 PathProgramCache]: Analyzing trace with hash 801730305, now seen corresponding path program 5 times [2019-10-07 00:45:16,890 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:45:16,890 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:45:16,890 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:45:16,891 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:45:16,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:45:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:45:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 10 proven. 99 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-07 00:45:17,485 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:45:17,485 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:45:17,485 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 00:45:17,774 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2019-10-07 00:45:17,775 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:45:17,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 46 conjunts are in the unsatisfiable core [2019-10-07 00:45:17,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:45:17,939 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:18,095 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2019-10-07 00:45:18,233 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:18,299 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:18,497 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-10-07 00:45:18,702 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:18,806 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:18,847 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:19,147 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-10-07 00:45:19,357 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-10-07 00:45:19,370 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:19,377 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:19,384 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:19,391 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:19,475 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:19,536 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:19,542 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:19,547 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:45:19,708 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2019-10-07 00:45:25,639 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 23 proven. 93 refuted. 12 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-07 00:45:25,640 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:45:32,258 WARN L191 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 552 DAG size of output: 19