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/nr3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:38:55,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:38:55,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:38:55,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:38:55,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:38:55,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:38:55,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:38:55,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:38:55,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:38:55,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:38:55,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:38:55,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:38:55,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:38:55,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:38:55,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:38:55,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:38:55,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:38:55,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:38:55,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:38:55,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:38:55,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:38:55,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:38:55,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:38:55,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:38:55,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 21:38:55,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:38:55,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:38:55,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:38:55,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:38:55,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:38:55,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:38:55,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:38:55,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:38:55,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:38:55,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:38:55,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:38:55,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:38:55,319 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:38:55,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:38:55,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:38:55,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:38:55,321 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:38:55,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:38:55,322 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:38:55,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:38:55,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:38:55,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:38:55,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:38:55,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:38:55,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:38:55,323 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:38:55,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:38:55,325 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:38:55,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:38:55,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:38:55,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:38:55,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:38:55,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:38:55,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:38:55,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:38:55,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:38:55,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:38:55,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:38:55,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:38:55,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:38:55,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 21:38:55,601 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:38:55,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:38:55,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:38:55,618 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:38:55,618 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:38:55,619 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/nr3.c [2019-10-13 21:38:55,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/186bfb0b2/269e83175fce48e6ba1137d9bb64c8b4/FLAG235a34fc4 [2019-10-13 21:38:56,150 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:38:56,151 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/nr3.c [2019-10-13 21:38:56,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/186bfb0b2/269e83175fce48e6ba1137d9bb64c8b4/FLAG235a34fc4 [2019-10-13 21:38:56,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/186bfb0b2/269e83175fce48e6ba1137d9bb64c8b4 [2019-10-13 21:38:56,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:38:56,515 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:38:56,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:38:56,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:38:56,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:38:56,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:38:56" (1/1) ... [2019-10-13 21:38:56,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d48aa0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:56, skipping insertion in model container [2019-10-13 21:38:56,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:38:56" (1/1) ... [2019-10-13 21:38:56,533 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:38:56,558 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:38:56,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:38:56,833 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:38:56,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:38:56,897 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:38:56,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:56 WrapperNode [2019-10-13 21:38:56,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:38:56,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:38:56,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:38:56,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:38:56,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:56" (1/1) ... [2019-10-13 21:38:56,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:56" (1/1) ... [2019-10-13 21:38:56,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:56" (1/1) ... [2019-10-13 21:38:56,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:56" (1/1) ... [2019-10-13 21:38:57,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:56" (1/1) ... [2019-10-13 21:38:57,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:56" (1/1) ... [2019-10-13 21:38:57,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:56" (1/1) ... [2019-10-13 21:38:57,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:38:57,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:38:57,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:38:57,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:38:57,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:38:57,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:38:57,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:38:57,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 21:38:57,079 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:38:57,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:38:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 21:38:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 21:38:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:38:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:38:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:38:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:38:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:38:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:38:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:38:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:38:57,523 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:38:57,524 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-13 21:38:57,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:38:57 BoogieIcfgContainer [2019-10-13 21:38:57,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:38:57,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:38:57,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:38:57,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:38:57,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:38:56" (1/3) ... [2019-10-13 21:38:57,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f169984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:38:57, skipping insertion in model container [2019-10-13 21:38:57,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:38:56" (2/3) ... [2019-10-13 21:38:57,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f169984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:38:57, skipping insertion in model container [2019-10-13 21:38:57,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:38:57" (3/3) ... [2019-10-13 21:38:57,534 INFO L109 eAbstractionObserver]: Analyzing ICFG nr3.c [2019-10-13 21:38:57,543 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:38:57,552 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:38:57,564 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:38:57,590 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:38:57,590 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:38:57,590 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:38:57,591 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:38:57,591 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:38:57,591 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:38:57,591 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:38:57,591 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:38:57,610 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-13 21:38:57,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 21:38:57,616 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:38:57,618 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:38:57,620 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:38:57,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:38:57,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1583936272, now seen corresponding path program 1 times [2019-10-13 21:38:57,632 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:38:57,632 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636785022] [2019-10-13 21:38:57,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:38:57,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:38:57,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:38:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:38:57,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:38:57,998 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636785022] [2019-10-13 21:38:58,000 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:38:58,001 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:38:58,002 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979772199] [2019-10-13 21:38:58,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:38:58,007 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:38:58,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:38:58,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:38:58,026 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-10-13 21:38:58,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:38:58,127 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2019-10-13 21:38:58,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:38:58,129 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-10-13 21:38:58,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:38:58,138 INFO L225 Difference]: With dead ends: 44 [2019-10-13 21:38:58,139 INFO L226 Difference]: Without dead ends: 20 [2019-10-13 21:38:58,142 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:38:58,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-13 21:38:58,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-10-13 21:38:58,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-13 21:38:58,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-10-13 21:38:58,186 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2019-10-13 21:38:58,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:38:58,187 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-10-13 21:38:58,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:38:58,188 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-10-13 21:38:58,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-13 21:38:58,189 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:38:58,189 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:38:58,189 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:38:58,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:38:58,190 INFO L82 PathProgramCache]: Analyzing trace with hash 362962816, now seen corresponding path program 1 times [2019-10-13 21:38:58,190 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:38:58,191 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440976142] [2019-10-13 21:38:58,191 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:38:58,191 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:38:58,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:38:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:38:58,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:38:58,281 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440976142] [2019-10-13 21:38:58,281 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:38:58,283 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:38:58,283 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432256128] [2019-10-13 21:38:58,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:38:58,285 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:38:58,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:38:58,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:38:58,287 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2019-10-13 21:38:58,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:38:58,308 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2019-10-13 21:38:58,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:38:58,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-13 21:38:58,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:38:58,310 INFO L225 Difference]: With dead ends: 31 [2019-10-13 21:38:58,310 INFO L226 Difference]: Without dead ends: 20 [2019-10-13 21:38:58,311 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:38:58,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-13 21:38:58,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-10-13 21:38:58,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-13 21:38:58,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2019-10-13 21:38:58,323 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15 [2019-10-13 21:38:58,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:38:58,325 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2019-10-13 21:38:58,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:38:58,326 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2019-10-13 21:38:58,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-13 21:38:58,326 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:38:58,327 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:38:58,327 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:38:58,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:38:58,327 INFO L82 PathProgramCache]: Analyzing trace with hash -561578652, now seen corresponding path program 1 times [2019-10-13 21:38:58,328 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:38:58,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612891863] [2019-10-13 21:38:58,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:38:58,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:38:58,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:38:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:38:58,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:38:58,424 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612891863] [2019-10-13 21:38:58,424 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778240754] [2019-10-13 21:38:58,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:38:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:38:58,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 21:38:58,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:38:58,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:38:58,516 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:38:58,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:38:58,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [619316137] [2019-10-13 21:38:58,590 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-13 21:38:58,590 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:38:58,608 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:38:58,620 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:38:58,621 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:38:58,824 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-13 21:38:59,201 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:00,027 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 17 for LOIs [2019-10-13 21:39:00,079 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-13 21:39:00,091 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 21:39:00,091 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 21:39:00,092 INFO L193 IcfgInterpreter]: Reachable states at location L11 satisfy 38#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0) (= |old(#length)| |#length|)) [2019-10-13 21:39:00,093 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 257#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 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)) [2019-10-13 21:39:00,093 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 266#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-13 21:39:00,094 INFO L193 IcfgInterpreter]: Reachable states at location L37-3 satisfy 223#(and (<= 0 main_~i~0) (<= main_~i~0 0) (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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0)) (<= main_~MINVAL~0 2)) [2019-10-13 21:39:00,094 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 262#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 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)) [2019-10-13 21:39:00,094 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 252#(and (or (and (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 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)))) [2019-10-13 21:39:00,095 INFO L193 IcfgInterpreter]: Reachable states at location L39-2 satisfy 232#(and (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~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_~i~0 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2)) [2019-10-13 21:39:00,096 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= ~CELLCOUNT~0 0) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:39:00,096 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 ~CELLCOUNT~0) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (<= ~CELLCOUNT~0 0) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= |old(#length)| |#length|)) [2019-10-13 21:39:00,096 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 271#(and (= ~CELLCOUNT~0 0) (= |#valid| (store |old(#valid)| 0 0)) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:39:00,097 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 21:39:00,097 INFO L193 IcfgInterpreter]: Reachable states at location L18 satisfy 43#(and (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0)) [2019-10-13 21:39:00,098 INFO L193 IcfgInterpreter]: Reachable states at location L22-3 satisfy 206#(and (or (and (= |#NULL.base| 0) (<= 2 main_~i~0) (= main_~MINVAL~0 2) (<= main_~j~0 3) (= |main_~#volArray~0.offset| 0) (not (<= 1 main_~j~0)) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= 0 |#NULL.base|) (not (= 0 (ite (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) 1 0))) (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) (= |main_~#volArray~0.offset| 0) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (<= 1 main_~i~0) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= 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|)) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (or (and (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= main_~j~0 1) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2)) (and (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (<= main_~i~0 1)))) [2019-10-13 21:39:00,098 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 247#(and (or (and (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0)) (and (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-13 21:39:00,099 INFO L193 IcfgInterpreter]: Reachable states at location L24-3 satisfy 201#(or (and (= main_~j~0 3) (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (not (= 0 (ite (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) 1 0))) (<= 0 |main_~#volArray~0.offset|) (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (<= 1 main_~i~0) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (<= main_~i~0 1) (<= main_~i~0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (div ~CELLCOUNT~0 3) 1) (div ~CELLCOUNT~0 3))) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= main_~j~0 3) (= main_~i~0 1) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= |#memory_int| |old(#memory_int)|) (<= 3 main_~j~0) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= main_~j~0 3) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0))) [2019-10-13 21:39:00,718 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2019-10-13 21:39:01,186 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 21:39:01,186 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 12] total 17 [2019-10-13 21:39:01,186 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166143463] [2019-10-13 21:39:01,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-13 21:39:01,191 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:39:01,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-13 21:39:01,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:39:01,193 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 17 states. [2019-10-13 21:39:01,514 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-10-13 21:39:01,903 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-10-13 21:39:02,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:39:02,315 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2019-10-13 21:39:02,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-13 21:39:02,315 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 16 [2019-10-13 21:39:02,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:39:02,316 INFO L225 Difference]: With dead ends: 44 [2019-10-13 21:39:02,316 INFO L226 Difference]: Without dead ends: 32 [2019-10-13 21:39:02,318 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2019-10-13 21:39:02,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-10-13 21:39:02,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2019-10-13 21:39:02,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-13 21:39:02,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-10-13 21:39:02,325 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 16 [2019-10-13 21:39:02,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:39:02,326 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-10-13 21:39:02,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-13 21:39:02,326 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-10-13 21:39:02,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-13 21:39:02,327 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:39:02,327 INFO L380 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:39:02,538 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:39:02,538 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:39:02,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:39:02,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1416286436, now seen corresponding path program 2 times [2019-10-13 21:39:02,539 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:39:02,539 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892416737] [2019-10-13 21:39:02,539 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:39:02,540 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:39:02,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:39:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:39:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:39:02,989 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892416737] [2019-10-13 21:39:02,989 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337149827] [2019-10-13 21:39:02,989 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:39:03,049 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-10-13 21:39:03,049 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 21:39:03,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 29 conjunts are in the unsatisfiable core [2019-10-13 21:39:03,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:39:03,099 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:03,458 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2019-10-13 21:39:03,799 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:39:03,799 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:39:04,221 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:39:04,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [769173814] [2019-10-13 21:39:04,223 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-13 21:39:04,223 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:39:04,224 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:39:04,224 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:39:04,224 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:39:04,260 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 25 for LOIs [2019-10-13 21:39:04,463 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:04,932 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 17 for LOIs [2019-10-13 21:39:04,957 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-13 21:39:04,961 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 21:39:04,961 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 21:39:04,961 INFO L193 IcfgInterpreter]: Reachable states at location L11 satisfy 38#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0) (= |old(#length)| |#length|)) [2019-10-13 21:39:04,962 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 259#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 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)) [2019-10-13 21:39:04,962 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 268#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-13 21:39:04,962 INFO L193 IcfgInterpreter]: Reachable states at location L37-3 satisfy 225#(and (<= 0 main_~i~0) (<= main_~i~0 0) (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) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0)) (<= main_~MINVAL~0 2)) [2019-10-13 21:39:04,962 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 264#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 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)) [2019-10-13 21:39:04,963 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 254#(and (or (and (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 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)))) [2019-10-13 21:39:04,963 INFO L193 IcfgInterpreter]: Reachable states at location L39-2 satisfy 234#(and (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~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_~i~0 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2)) [2019-10-13 21:39:04,963 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= ~CELLCOUNT~0 0) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:39:04,963 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |old(~CELLCOUNT~0)|) (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (<= ~CELLCOUNT~0 0) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= |old(#length)| |#length|)) [2019-10-13 21:39:04,964 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 273#(and (= ~CELLCOUNT~0 0) (= |#valid| (store |old(#valid)| 0 0)) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:39:04,964 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 21:39:04,964 INFO L193 IcfgInterpreter]: Reachable states at location L18 satisfy 43#(and (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0)) [2019-10-13 21:39:04,964 INFO L193 IcfgInterpreter]: Reachable states at location L22-3 satisfy 206#(and (or (<= main_~j~0 1) (and (<= 1 main_~i~0) (<= main_~i~0 1))) (or (and (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (not (= 0 (ite (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) 1 0))) (<= 0 |main_~#volArray~0.offset|) (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (<= 1 main_~i~0) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (<= main_~i~0 1) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (= main_~i~0 1) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~i~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= main_~j~0 3) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (not (<= 1 main_~j~0)) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)))) [2019-10-13 21:39:04,965 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 249#(and (or (and (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0)) (and (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-13 21:39:04,965 INFO L193 IcfgInterpreter]: Reachable states at location L24-3 satisfy 201#(and (or (and (= main_~j~0 3) (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (not (= 0 (ite (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) 1 0))) (<= 0 |main_~#volArray~0.offset|) (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (<= main_~i~0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (div ~CELLCOUNT~0 3) 1) (div ~CELLCOUNT~0 3))) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= main_~j~0 3) (= main_~i~0 1) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (< 1 ~CELLCOUNT~0) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= |#memory_int| |old(#memory_int)|) (<= 3 main_~j~0) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= main_~j~0 3) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0))) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~MINVAL~0 2)) [2019-10-13 21:39:05,868 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 61 [2019-10-13 21:39:06,422 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 21:39:06,422 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 11, 12] total 38 [2019-10-13 21:39:06,423 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234794683] [2019-10-13 21:39:06,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-10-13 21:39:06,424 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:39:06,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-10-13 21:39:06,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1249, Unknown=0, NotChecked=0, Total=1406 [2019-10-13 21:39:06,425 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 38 states. [2019-10-13 21:39:06,772 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2019-10-13 21:39:07,025 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-10-13 21:39:07,369 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-10-13 21:39:07,667 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2019-10-13 21:39:08,119 WARN L191 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 91 [2019-10-13 21:39:08,350 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2019-10-13 21:39:08,569 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-10-13 21:39:08,782 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-10-13 21:39:09,052 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2019-10-13 21:39:11,533 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-10-13 21:39:12,134 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2019-10-13 21:39:12,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:39:12,684 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2019-10-13 21:39:12,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-10-13 21:39:12,684 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 18 [2019-10-13 21:39:12,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:39:12,687 INFO L225 Difference]: With dead ends: 54 [2019-10-13 21:39:12,687 INFO L226 Difference]: Without dead ends: 52 [2019-10-13 21:39:12,689 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=464, Invalid=3442, Unknown=0, NotChecked=0, Total=3906 [2019-10-13 21:39:12,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-10-13 21:39:12,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 42. [2019-10-13 21:39:12,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-13 21:39:12,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2019-10-13 21:39:12,707 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 18 [2019-10-13 21:39:12,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:39:12,707 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2019-10-13 21:39:12,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-10-13 21:39:12,707 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2019-10-13 21:39:12,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-13 21:39:12,709 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:39:12,709 INFO L380 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:39:12,913 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:39:12,913 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:39:12,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:39:12,914 INFO L82 PathProgramCache]: Analyzing trace with hash -293297956, now seen corresponding path program 1 times [2019-10-13 21:39:12,915 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:39:12,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424936990] [2019-10-13 21:39:12,915 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:39:12,915 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:39:12,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:39:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:39:13,300 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:39:13,300 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424936990] [2019-10-13 21:39:13,300 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268399436] [2019-10-13 21:39:13,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:39:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:39:13,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 38 conjunts are in the unsatisfiable core [2019-10-13 21:39:13,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:39:13,546 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:13,734 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:13,887 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:13,999 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:16,419 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:39:16,420 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:39:19,692 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 24 [2019-10-13 21:39:19,879 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 21 refuted. 1 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 21:39:19,879 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [885091984] [2019-10-13 21:39:19,881 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-13 21:39:19,882 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:39:19,882 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:39:19,882 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:39:19,882 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:39:19,914 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-13 21:39:20,057 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:39:20,994 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 17 for LOIs [2019-10-13 21:39:21,029 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-13 21:39:21,033 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 21:39:21,033 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 21:39:21,034 INFO L193 IcfgInterpreter]: Reachable states at location L11 satisfy 38#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0) (= |old(#length)| |#length|)) [2019-10-13 21:39:21,034 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 622#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 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)) [2019-10-13 21:39:21,034 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 631#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-13 21:39:21,035 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 617#(and (<= 1 __VERIFIER_assert_~cond) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (not (= 0 __VERIFIER_assert_~cond)) (<= 0 |#NULL.base|) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (<= |#NULL.base| 0) (not (= 0 __VERIFIER_assert_~cond)) (<= 0 |#NULL.base|) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:39:21,035 INFO L193 IcfgInterpreter]: Reachable states at location L37-3 satisfy 378#(and (or (and (= |#NULL.base| 0) (= main_~MINVAL~0 2) (= |main_~#volArray~0.offset| 0) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0)) (and (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~MINVAL~0 2))) (or (and (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~MINVAL~0 2)) (and (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~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_~i~0 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2)))) [2019-10-13 21:39:21,035 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 612#(and (<= 1 __VERIFIER_assert_~cond) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (not (= 0 __VERIFIER_assert_~cond)) (<= 0 |#NULL.base|) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (<= |#NULL.base| 0) (not (= 0 __VERIFIER_assert_~cond)) (<= 0 |#NULL.base|) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:39:21,036 INFO L193 IcfgInterpreter]: Reachable states at location L39-3 satisfy 529#(and (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) |main_#t~short7| (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2)) [2019-10-13 21:39:21,036 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 627#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 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)) [2019-10-13 21:39:21,036 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 607#(and (or (and (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 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)))) [2019-10-13 21:39:21,039 INFO L193 IcfgInterpreter]: Reachable states at location L39-2 satisfy 598#(and (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2)) [2019-10-13 21:39:21,039 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= ~CELLCOUNT~0 0) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:39:21,039 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 ~CELLCOUNT~0) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (<= ~CELLCOUNT~0 0) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= |old(#length)| |#length|)) [2019-10-13 21:39:21,039 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 636#(and (= ~CELLCOUNT~0 0) (= |#valid| (store |old(#valid)| 0 0)) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:39:21,040 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 21:39:21,040 INFO L193 IcfgInterpreter]: Reachable states at location L18 satisfy 43#(and (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0)) [2019-10-13 21:39:21,040 INFO L193 IcfgInterpreter]: Reachable states at location L22-3 satisfy 190#(and (or (and (= |#NULL.base| 0) (<= 2 main_~i~0) (= main_~MINVAL~0 2) (<= main_~j~0 3) (= |main_~#volArray~0.offset| 0) (not (<= 1 main_~j~0)) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)) (and (= 0 |#NULL.base|) (not (= 0 (ite (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) 1 0))) (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) (= |main_~#volArray~0.offset| 0) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (<= 1 main_~i~0) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~i~0 1) (= 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|)) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0))) (or (and (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= main_~j~0 1) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2)) (and (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (<= main_~i~0 1)))) [2019-10-13 21:39:21,040 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 602#(and (or (and (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0)) (and (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-13 21:39:21,041 INFO L193 IcfgInterpreter]: Reachable states at location L24-3 satisfy 185#(or (and (= main_~j~0 3) (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (not (= 0 (ite (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) 1 0))) (<= 0 |main_~#volArray~0.offset|) (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (= (store |old(#length)| |main_~#volArray~0.base| (* ~CELLCOUNT~0 4)) |#length|) (not (= |main_~#volArray~0.base| 0)) (<= 1 main_~i~0) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (<= main_~i~0 1) (<= main_~i~0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (div ~CELLCOUNT~0 3) 1) (div ~CELLCOUNT~0 3))) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= main_~j~0 3) (= main_~i~0 1) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= |#memory_int| |old(#memory_int)|) (<= 3 main_~j~0) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= main_~j~0 3) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0))) [2019-10-13 21:39:21,990 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2019-10-13 21:39:22,470 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2019-10-13 21:39:23,071 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 21:39:23,071 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 15, 14] total 58 [2019-10-13 21:39:23,071 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400052288] [2019-10-13 21:39:23,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 58 states [2019-10-13 21:39:23,073 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:39:23,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2019-10-13 21:39:23,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=2941, Unknown=2, NotChecked=0, Total=3306 [2019-10-13 21:39:23,075 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 58 states. [2019-10-13 21:39:23,400 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2019-10-13 21:39:23,615 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2019-10-13 21:39:24,145 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 47 [2019-10-13 21:39:34,329 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 57