java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/array-examples/sorting_selectionsort_2_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:32:44,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:32:44,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:32:44,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:32:44,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:32:44,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:32:44,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:32:44,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:32:44,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:32:44,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:32:44,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:32:44,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:32:44,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:32:44,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:32:44,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:32:44,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:32:44,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:32:44,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:32:44,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:32:44,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:32:44,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:32:44,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:32:44,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:32:44,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:32:44,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 21:32:44,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:32:44,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:32:44,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:32:44,486 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 21:32:44,514 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:32:44,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:32:44,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:32:44,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:32:44,516 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:32:44,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:32:44,522 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:32:44,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:32:44,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:32:44,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:32:44,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:32:44,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:32:44,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:32:44,524 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:32:44,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:32:44,524 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:32:44,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:32:44,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:32:44,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:32:44,525 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:32:44,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:32:44,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:32:44,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:32:44,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:32:44,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:32:44,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:32:44,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:32:44,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:32:44,527 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 21:32:44,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:32:44,827 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:32:44,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:32:44,832 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:32:44,832 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:32:44,833 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sorting_selectionsort_2_ground.i [2019-10-13 21:32:44,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7196d63fc/2a28d56b037849dbb0444d864905eb6a/FLAGfae6a2e99 [2019-10-13 21:32:45,320 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:32:45,320 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sorting_selectionsort_2_ground.i [2019-10-13 21:32:45,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7196d63fc/2a28d56b037849dbb0444d864905eb6a/FLAGfae6a2e99 [2019-10-13 21:32:45,768 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7196d63fc/2a28d56b037849dbb0444d864905eb6a [2019-10-13 21:32:45,779 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:32:45,780 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:32:45,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:32:45,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:32:45,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:32:45,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:32:45" (1/1) ... [2019-10-13 21:32:45,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343aa16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:45, skipping insertion in model container [2019-10-13 21:32:45,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:32:45" (1/1) ... [2019-10-13 21:32:45,800 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:32:45,826 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:32:46,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:32:46,016 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:32:46,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:32:46,133 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:32:46,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:46 WrapperNode [2019-10-13 21:32:46,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:32:46,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:32:46,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:32:46,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:32:46,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:46" (1/1) ... [2019-10-13 21:32:46,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:46" (1/1) ... [2019-10-13 21:32:46,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:46" (1/1) ... [2019-10-13 21:32:46,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:46" (1/1) ... [2019-10-13 21:32:46,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:46" (1/1) ... [2019-10-13 21:32:46,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:46" (1/1) ... [2019-10-13 21:32:46,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:46" (1/1) ... [2019-10-13 21:32:46,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:32:46,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:32:46,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:32:46,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:32:46,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:46" (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 21:32:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:32:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:32:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 21:32:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:32:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:32:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 21:32:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:32:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:32:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:32:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:32:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:32:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:32:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:32:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:32:46,754 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:32:46,754 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-13 21:32:46,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:32:46 BoogieIcfgContainer [2019-10-13 21:32:46,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:32:46,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:32:46,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:32:46,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:32:46,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:32:45" (1/3) ... [2019-10-13 21:32:46,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d57bc94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:32:46, skipping insertion in model container [2019-10-13 21:32:46,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:46" (2/3) ... [2019-10-13 21:32:46,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d57bc94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:32:46, skipping insertion in model container [2019-10-13 21:32:46,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:32:46" (3/3) ... [2019-10-13 21:32:46,764 INFO L109 eAbstractionObserver]: Analyzing ICFG sorting_selectionsort_2_ground.i [2019-10-13 21:32:46,775 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:32:46,783 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:32:46,795 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:32:46,821 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:32:46,822 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:32:46,822 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:32:46,822 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:32:46,822 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:32:46,823 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:32:46,823 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:32:46,823 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:32:46,842 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-10-13 21:32:46,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 21:32:46,850 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:32:46,851 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:32:46,853 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:32:46,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:32:46,858 INFO L82 PathProgramCache]: Analyzing trace with hash -702995818, now seen corresponding path program 1 times [2019-10-13 21:32:46,865 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:32:46,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430259770] [2019-10-13 21:32:46,867 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:32:46,867 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:32:46,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:32:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:32:47,020 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 21:32:47,022 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430259770] [2019-10-13 21:32:47,024 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:32:47,024 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:32:47,026 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030670798] [2019-10-13 21:32:47,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:32:47,031 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:32:47,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:32:47,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:32:47,045 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2019-10-13 21:32:47,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:32:47,135 INFO L93 Difference]: Finished difference Result 60 states and 92 transitions. [2019-10-13 21:32:47,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:32:47,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-10-13 21:32:47,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:32:47,148 INFO L225 Difference]: With dead ends: 60 [2019-10-13 21:32:47,150 INFO L226 Difference]: Without dead ends: 35 [2019-10-13 21:32:47,156 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 21:32:47,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-13 21:32:47,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 27. [2019-10-13 21:32:47,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-13 21:32:47,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-10-13 21:32:47,226 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 13 [2019-10-13 21:32:47,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:32:47,227 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-10-13 21:32:47,227 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:32:47,227 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2019-10-13 21:32:47,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-13 21:32:47,230 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:32:47,230 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:32:47,231 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:32:47,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:32:47,232 INFO L82 PathProgramCache]: Analyzing trace with hash -663003876, now seen corresponding path program 1 times [2019-10-13 21:32:47,232 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:32:47,233 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756364152] [2019-10-13 21:32:47,233 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:32:47,233 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:32:47,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:32:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:32:47,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:32:47,313 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756364152] [2019-10-13 21:32:47,314 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:32:47,314 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:32:47,314 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676179588] [2019-10-13 21:32:47,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:32:47,317 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:32:47,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:32:47,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:32:47,318 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 4 states. [2019-10-13 21:32:47,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:32:47,410 INFO L93 Difference]: Finished difference Result 55 states and 79 transitions. [2019-10-13 21:32:47,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:32:47,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-10-13 21:32:47,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:32:47,414 INFO L225 Difference]: With dead ends: 55 [2019-10-13 21:32:47,414 INFO L226 Difference]: Without dead ends: 36 [2019-10-13 21:32:47,416 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:32:47,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-13 21:32:47,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2019-10-13 21:32:47,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-13 21:32:47,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2019-10-13 21:32:47,424 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 15 [2019-10-13 21:32:47,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:32:47,425 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2019-10-13 21:32:47,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:32:47,425 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2019-10-13 21:32:47,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-13 21:32:47,426 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:32:47,426 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:32:47,426 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:32:47,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:32:47,427 INFO L82 PathProgramCache]: Analyzing trace with hash -906594349, now seen corresponding path program 1 times [2019-10-13 21:32:47,427 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:32:47,427 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387774323] [2019-10-13 21:32:47,428 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:32:47,428 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:32:47,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:32:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:32:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:32:47,491 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387774323] [2019-10-13 21:32:47,491 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707000620] [2019-10-13 21:32:47,491 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 21:32:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:32:47,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 21:32:47,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:32:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:32:47,600 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:32:47,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:32:47,643 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1957460008] [2019-10-13 21:32:47,681 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-13 21:32:47,681 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:32:47,688 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:32:47,696 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:32:47,697 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:32:47,857 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-13 21:32:48,256 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 47 for LOIs [2019-10-13 21:32:48,277 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-13 21:32:48,296 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 21:32:48,296 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 21:32:48,298 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (exists ((v_prenex_2 Int) (v_prenex_3 Int) (|v_main_~#a~0.offset_BEFORE_CALL_1| Int) (v_prenex_1 Int) (v_main_~i~0_BEFORE_CALL_1 Int) (v_main_~s~0_BEFORE_CALL_1 Int) (|v_main_~#a~0.base_BEFORE_CALL_1| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_2 99999) (<= v_prenex_2 0) (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4) 4)))) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4) 4)))) (< v_prenex_2 99999) (<= v_prenex_2 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~s~0_BEFORE_CALL_1 4)))) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~s~0_BEFORE_CALL_1 4)))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))))))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:32:48,300 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (<= __VERIFIER_assert_~cond 0) (exists ((v_prenex_2 Int) (v_prenex_3 Int) (|v_main_~#a~0.offset_BEFORE_CALL_1| Int) (v_prenex_1 Int) (v_main_~i~0_BEFORE_CALL_1 Int) (v_main_~s~0_BEFORE_CALL_1 Int) (|v_main_~#a~0.base_BEFORE_CALL_1| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_2 99999) (<= v_prenex_2 0) (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4) 4)))) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4) 4)))) (< v_prenex_2 99999) (<= v_prenex_2 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~s~0_BEFORE_CALL_1 4)))) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~s~0_BEFORE_CALL_1 4)))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))))))) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:32:48,300 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-13 21:32:48,300 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (<= __VERIFIER_assert_~cond 0) (exists ((v_prenex_2 Int) (v_prenex_3 Int) (|v_main_~#a~0.offset_BEFORE_CALL_1| Int) (v_prenex_1 Int) (v_main_~i~0_BEFORE_CALL_1 Int) (v_main_~s~0_BEFORE_CALL_1 Int) (|v_main_~#a~0.base_BEFORE_CALL_1| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_2 99999) (<= v_prenex_2 0) (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4) 4)))) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4) 4)))) (< v_prenex_2 99999) (<= v_prenex_2 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~s~0_BEFORE_CALL_1 4)))) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~s~0_BEFORE_CALL_1 4)))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))))))) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:32:48,301 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-13 21:32:48,301 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-13 21:32:48,302 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-13 21:32:48,302 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:32:48,302 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:32:48,303 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:32:48,303 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 21:32:48,304 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-13 21:32:48,304 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-13 21:32:48,305 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-13 21:32:48,305 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((v_prenex_2 Int) (v_prenex_3 Int) (|v_main_~#a~0.offset_BEFORE_CALL_1| Int) (v_prenex_1 Int) (v_main_~i~0_BEFORE_CALL_1 Int) (v_main_~s~0_BEFORE_CALL_1 Int) (|v_main_~#a~0.base_BEFORE_CALL_1| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_2 99999) (<= v_prenex_2 0) (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4) 4)))) (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4))) (select (select |#memory_int| v_prenex_3) (+ v_prenex_1 (* v_prenex_2 4) 4)))) (< v_prenex_2 99999) (<= v_prenex_2 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~s~0_BEFORE_CALL_1 4)))) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~s~0_BEFORE_CALL_1 4)))) (<= v_main_~i~0_BEFORE_CALL_1 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_1 99999) (<= v_main_~i~0_BEFORE_CALL_1 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) (+ |v_main_~#a~0.offset_BEFORE_CALL_1| (* v_main_~i~0_BEFORE_CALL_1 4) 4))))))) [2019-10-13 21:32:48,689 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 21:32:48,690 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4, 11] total 18 [2019-10-13 21:32:48,690 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539055099] [2019-10-13 21:32:48,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:32:48,692 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:32:48,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:32:48,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:32:48,693 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand 18 states. [2019-10-13 21:32:50,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:32:50,219 INFO L93 Difference]: Finished difference Result 105 states and 160 transitions. [2019-10-13 21:32:50,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 21:32:50,219 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 16 [2019-10-13 21:32:50,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:32:50,221 INFO L225 Difference]: With dead ends: 105 [2019-10-13 21:32:50,222 INFO L226 Difference]: Without dead ends: 84 [2019-10-13 21:32:50,235 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=246, Invalid=1014, Unknown=0, NotChecked=0, Total=1260 [2019-10-13 21:32:50,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-10-13 21:32:50,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 66. [2019-10-13 21:32:50,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-10-13 21:32:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 94 transitions. [2019-10-13 21:32:50,254 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 94 transitions. Word has length 16 [2019-10-13 21:32:50,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:32:50,254 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 94 transitions. [2019-10-13 21:32:50,254 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:32:50,254 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 94 transitions. [2019-10-13 21:32:50,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-13 21:32:50,255 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:32:50,256 INFO L380 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:32:50,461 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:32:50,462 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:32:50,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:32:50,462 INFO L82 PathProgramCache]: Analyzing trace with hash 55121478, now seen corresponding path program 2 times [2019-10-13 21:32:50,463 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:32:50,463 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593283422] [2019-10-13 21:32:50,464 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:32:50,464 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:32:50,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:32:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:32:50,546 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 21:32:50,546 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593283422] [2019-10-13 21:32:50,547 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197832626] [2019-10-13 21:32:50,547 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 21:32:50,599 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-13 21:32:50,600 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 21:32:50,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-13 21:32:50,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:32:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 21:32:50,615 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:32:50,644 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 21:32:50,645 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [806778254] [2019-10-13 21:32:50,646 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-13 21:32:50,646 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:32:50,647 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:32:50,647 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:32:50,647 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:32:50,696 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-13 21:32:50,941 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 76 for LOIs [2019-10-13 21:32:50,951 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-13 21:32:50,957 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 21:32:50,957 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 21:32:50,957 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (exists ((|v_main_~#a~0.base_BEFORE_CALL_2| Int) (|v_main_~#a~0.offset_BEFORE_CALL_2| Int) (v_prenex_12 Int) (v_prenex_11 Int) (v_prenex_13 Int) (v_main_~s~0_BEFORE_CALL_2 Int) (v_prenex_10 Int) (v_prenex_8 Int) (v_prenex_9 Int) (v_main_~i~0_BEFORE_CALL_2 Int) (v_prenex_6 Int) (v_prenex_7 Int) (v_prenex_4 Int) (v_prenex_5 Int)) (or (and (< v_prenex_9 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* v_prenex_9 4))) (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* v_prenex_9 4) 4)))) (<= v_prenex_9 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4) 4))) (<= v_prenex_6 0) (< v_prenex_6 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_13 0) (not (<= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4) 4)))) (< v_prenex_13 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~i~0_BEFORE_CALL_2 0) (< v_main_~i~0_BEFORE_CALL_2 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* v_main_~i~0_BEFORE_CALL_2 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* v_main_~i~0_BEFORE_CALL_2 4) 4)))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4) 4))) (<= v_prenex_6 0) (= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_main_~s~0_BEFORE_CALL_2 4)))) (< v_prenex_6 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_13 0) (not (<= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4) 4)))) (= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_12 4)))) (< v_prenex_13 99999)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:32:50,958 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((|v_main_~#a~0.base_BEFORE_CALL_2| Int) (|v_main_~#a~0.offset_BEFORE_CALL_2| Int) (v_prenex_12 Int) (v_prenex_11 Int) (v_prenex_13 Int) (v_main_~s~0_BEFORE_CALL_2 Int) (v_prenex_10 Int) (v_prenex_8 Int) (v_prenex_9 Int) (v_main_~i~0_BEFORE_CALL_2 Int) (v_prenex_6 Int) (v_prenex_7 Int) (v_prenex_4 Int) (v_prenex_5 Int)) (or (and (< v_prenex_9 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* v_prenex_9 4))) (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* v_prenex_9 4) 4)))) (<= v_prenex_9 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4) 4))) (<= v_prenex_6 0) (< v_prenex_6 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_13 0) (not (<= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4) 4)))) (< v_prenex_13 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~i~0_BEFORE_CALL_2 0) (< v_main_~i~0_BEFORE_CALL_2 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* v_main_~i~0_BEFORE_CALL_2 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* v_main_~i~0_BEFORE_CALL_2 4) 4)))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4) 4))) (<= v_prenex_6 0) (= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_main_~s~0_BEFORE_CALL_2 4)))) (< v_prenex_6 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_13 0) (not (<= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4) 4)))) (= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_12 4)))) (< v_prenex_13 99999)))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:32:50,958 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-13 21:32:50,958 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((|v_main_~#a~0.base_BEFORE_CALL_2| Int) (|v_main_~#a~0.offset_BEFORE_CALL_2| Int) (v_prenex_12 Int) (v_prenex_11 Int) (v_prenex_13 Int) (v_main_~s~0_BEFORE_CALL_2 Int) (v_prenex_10 Int) (v_prenex_8 Int) (v_prenex_9 Int) (v_main_~i~0_BEFORE_CALL_2 Int) (v_prenex_6 Int) (v_prenex_7 Int) (v_prenex_4 Int) (v_prenex_5 Int)) (or (and (< v_prenex_9 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* v_prenex_9 4))) (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* v_prenex_9 4) 4)))) (<= v_prenex_9 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4) 4))) (<= v_prenex_6 0) (< v_prenex_6 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_13 0) (not (<= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4) 4)))) (< v_prenex_13 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~i~0_BEFORE_CALL_2 0) (< v_main_~i~0_BEFORE_CALL_2 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* v_main_~i~0_BEFORE_CALL_2 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* v_main_~i~0_BEFORE_CALL_2 4) 4)))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4) 4))) (<= v_prenex_6 0) (= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_main_~s~0_BEFORE_CALL_2 4)))) (< v_prenex_6 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_13 0) (not (<= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4) 4)))) (= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_12 4)))) (< v_prenex_13 99999)))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:32:50,959 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-13 21:32:50,959 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-13 21:32:50,959 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-13 21:32:50,959 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:32:50,960 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:32:50,960 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:32:50,960 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 21:32:50,960 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-13 21:32:50,961 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-13 21:32:50,961 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-13 21:32:50,961 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((|v_main_~#a~0.base_BEFORE_CALL_2| Int) (|v_main_~#a~0.offset_BEFORE_CALL_2| Int) (v_prenex_12 Int) (v_prenex_11 Int) (v_prenex_13 Int) (v_main_~s~0_BEFORE_CALL_2 Int) (v_prenex_10 Int) (v_prenex_8 Int) (v_prenex_9 Int) (v_main_~i~0_BEFORE_CALL_2 Int) (v_prenex_6 Int) (v_prenex_7 Int) (v_prenex_4 Int) (v_prenex_5 Int)) (or (and (< v_prenex_9 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* v_prenex_9 4))) (select (select |#memory_int| v_prenex_7) (+ v_prenex_8 (* v_prenex_9 4) 4)))) (<= v_prenex_9 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4) 4))) (<= v_prenex_6 0) (< v_prenex_6 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_13 0) (not (<= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4) 4)))) (< v_prenex_13 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~i~0_BEFORE_CALL_2 0) (< v_main_~i~0_BEFORE_CALL_2 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* v_main_~i~0_BEFORE_CALL_2 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_2|) (+ |v_main_~#a~0.offset_BEFORE_CALL_2| (* v_main_~i~0_BEFORE_CALL_2 4) 4)))) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4) 4))) (<= v_prenex_6 0) (= (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_prenex_6 4))) (select (select |#memory_int| v_prenex_4) (+ v_prenex_5 (* v_main_~s~0_BEFORE_CALL_2 4)))) (< v_prenex_6 99999)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_13 0) (not (<= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4) 4)))) (= (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_13 4))) (select (select |#memory_int| v_prenex_10) (+ v_prenex_11 (* v_prenex_12 4)))) (< v_prenex_13 99999)))) [2019-10-13 21:32:51,287 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 21:32:51,287 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 11] total 21 [2019-10-13 21:32:51,287 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898557346] [2019-10-13 21:32:51,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-13 21:32:51,289 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:32:51,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-13 21:32:51,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2019-10-13 21:32:51,290 INFO L87 Difference]: Start difference. First operand 66 states and 94 transitions. Second operand 21 states. [2019-10-13 21:32:52,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:32:52,720 INFO L93 Difference]: Finished difference Result 144 states and 214 transitions. [2019-10-13 21:32:52,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-13 21:32:52,721 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 20 [2019-10-13 21:32:52,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:32:52,723 INFO L225 Difference]: With dead ends: 144 [2019-10-13 21:32:52,723 INFO L226 Difference]: Without dead ends: 92 [2019-10-13 21:32:52,725 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=313, Invalid=1493, Unknown=0, NotChecked=0, Total=1806 [2019-10-13 21:32:52,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-10-13 21:32:52,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 74. [2019-10-13 21:32:52,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-10-13 21:32:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2019-10-13 21:32:52,742 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 20 [2019-10-13 21:32:52,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:32:52,742 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2019-10-13 21:32:52,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-13 21:32:52,743 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2019-10-13 21:32:52,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-13 21:32:52,744 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:32:52,744 INFO L380 BasicCegarLoop]: trace histogram [6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:32:52,947 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:32:52,948 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:32:52,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:32:52,949 INFO L82 PathProgramCache]: Analyzing trace with hash 425780998, now seen corresponding path program 3 times [2019-10-13 21:32:52,949 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:32:52,950 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273518701] [2019-10-13 21:32:52,950 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:32:52,950 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:32:52,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:32:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:32:53,044 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 21:32:53,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273518701] [2019-10-13 21:32:53,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088859728] [2019-10-13 21:32:53,045 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:32:53,111 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-13 21:32:53,112 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 21:32:53,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:32:53,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:32:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-13 21:32:53,167 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:32:53,248 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-13 21:32:53,249 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1253917680] [2019-10-13 21:32:53,252 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-13 21:32:53,253 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:32:53,253 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:32:53,253 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:32:53,254 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:32:53,286 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-13 21:32:53,492 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 76 for LOIs [2019-10-13 21:32:53,506 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-13 21:32:53,511 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 21:32:53,511 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 21:32:53,512 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (exists ((v_prenex_16 Int) (v_prenex_15 Int) (v_prenex_18 Int) (|v_main_~#a~0.base_BEFORE_CALL_3| Int) (v_prenex_17 Int) (v_prenex_23 Int) (v_prenex_22 Int) (|v_main_~#a~0.offset_BEFORE_CALL_3| Int) (v_prenex_14 Int) (v_main_~s~0_BEFORE_CALL_3 Int) (v_prenex_21 Int) (v_prenex_20 Int) (v_main_~i~0_BEFORE_CALL_3 Int) (v_prenex_19 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_23 0) (= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_22 4))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4)))) (not (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4) 4)))) (< v_prenex_23 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4) 4))) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_14) (+ v_prenex_15 (* v_prenex_16 4))) (select (select |#memory_int| v_prenex_14) (+ v_prenex_15 (* v_prenex_16 4) 4))) (< v_prenex_16 99999) (<= v_prenex_16 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_19 99999) (<= v_prenex_19 0) (not (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* v_prenex_19 4))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* v_prenex_19 4) 4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~s~0_BEFORE_CALL_3 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4) 4))) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_23 0) (not (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4) 4)))) (< v_prenex_23 99999)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:32:53,512 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (exists ((v_prenex_16 Int) (v_prenex_15 Int) (v_prenex_18 Int) (|v_main_~#a~0.base_BEFORE_CALL_3| Int) (v_prenex_17 Int) (v_prenex_23 Int) (v_prenex_22 Int) (|v_main_~#a~0.offset_BEFORE_CALL_3| Int) (v_prenex_14 Int) (v_main_~s~0_BEFORE_CALL_3 Int) (v_prenex_21 Int) (v_prenex_20 Int) (v_main_~i~0_BEFORE_CALL_3 Int) (v_prenex_19 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_23 0) (= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_22 4))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4)))) (not (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4) 4)))) (< v_prenex_23 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4) 4))) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_14) (+ v_prenex_15 (* v_prenex_16 4))) (select (select |#memory_int| v_prenex_14) (+ v_prenex_15 (* v_prenex_16 4) 4))) (< v_prenex_16 99999) (<= v_prenex_16 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_19 99999) (<= v_prenex_19 0) (not (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* v_prenex_19 4))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* v_prenex_19 4) 4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~s~0_BEFORE_CALL_3 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4) 4))) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_23 0) (not (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4) 4)))) (< v_prenex_23 99999)))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:32:53,513 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-13 21:32:53,513 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (exists ((v_prenex_16 Int) (v_prenex_15 Int) (v_prenex_18 Int) (|v_main_~#a~0.base_BEFORE_CALL_3| Int) (v_prenex_17 Int) (v_prenex_23 Int) (v_prenex_22 Int) (|v_main_~#a~0.offset_BEFORE_CALL_3| Int) (v_prenex_14 Int) (v_main_~s~0_BEFORE_CALL_3 Int) (v_prenex_21 Int) (v_prenex_20 Int) (v_main_~i~0_BEFORE_CALL_3 Int) (v_prenex_19 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_23 0) (= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_22 4))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4)))) (not (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4) 4)))) (< v_prenex_23 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4) 4))) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_14) (+ v_prenex_15 (* v_prenex_16 4))) (select (select |#memory_int| v_prenex_14) (+ v_prenex_15 (* v_prenex_16 4) 4))) (< v_prenex_16 99999) (<= v_prenex_16 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_19 99999) (<= v_prenex_19 0) (not (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* v_prenex_19 4))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* v_prenex_19 4) 4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~s~0_BEFORE_CALL_3 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4) 4))) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_23 0) (not (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4) 4)))) (< v_prenex_23 99999)))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:32:53,513 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-13 21:32:53,513 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-13 21:32:53,514 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-13 21:32:53,514 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:32:53,514 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:32:53,514 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:32:53,515 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-13 21:32:53,519 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 21:32:53,519 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-13 21:32:53,519 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-13 21:32:53,519 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((v_prenex_16 Int) (v_prenex_15 Int) (v_prenex_18 Int) (|v_main_~#a~0.base_BEFORE_CALL_3| Int) (v_prenex_17 Int) (v_prenex_23 Int) (v_prenex_22 Int) (|v_main_~#a~0.offset_BEFORE_CALL_3| Int) (v_prenex_14 Int) (v_main_~s~0_BEFORE_CALL_3 Int) (v_prenex_21 Int) (v_prenex_20 Int) (v_main_~i~0_BEFORE_CALL_3 Int) (v_prenex_19 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_23 0) (= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_22 4))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4)))) (not (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4) 4)))) (< v_prenex_23 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4) 4))) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_14) (+ v_prenex_15 (* v_prenex_16 4))) (select (select |#memory_int| v_prenex_14) (+ v_prenex_15 (* v_prenex_16 4) 4))) (< v_prenex_16 99999) (<= v_prenex_16 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_19 99999) (<= v_prenex_19 0) (not (<= (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* v_prenex_19 4))) (select (select |#memory_int| v_prenex_17) (+ v_prenex_18 (* v_prenex_19 4) 4))))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~s~0_BEFORE_CALL_3 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_3|) (+ |v_main_~#a~0.offset_BEFORE_CALL_3| (* v_main_~i~0_BEFORE_CALL_3 4) 4))) (< v_main_~i~0_BEFORE_CALL_3 99999) (<= v_main_~i~0_BEFORE_CALL_3 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (<= v_prenex_23 0) (not (<= (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4))) (select (select |#memory_int| v_prenex_20) (+ v_prenex_21 (* v_prenex_23 4) 4)))) (< v_prenex_23 99999)))) [2019-10-13 21:32:53,944 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 21:32:53,945 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7, 11] total 29 [2019-10-13 21:32:53,945 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752959307] [2019-10-13 21:32:53,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-10-13 21:32:53,946 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:32:53,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-10-13 21:32:53,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=665, Unknown=0, NotChecked=0, Total=812 [2019-10-13 21:32:53,948 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. Second operand 29 states. [2019-10-13 21:32:57,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:32:57,289 INFO L93 Difference]: Finished difference Result 259 states and 401 transitions. [2019-10-13 21:32:57,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-10-13 21:32:57,290 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 24 [2019-10-13 21:32:57,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:32:57,294 INFO L225 Difference]: With dead ends: 259 [2019-10-13 21:32:57,294 INFO L226 Difference]: Without dead ends: 195 [2019-10-13 21:32:57,298 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1723 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1412, Invalid=5068, Unknown=0, NotChecked=0, Total=6480 [2019-10-13 21:32:57,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-10-13 21:32:57,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 159. [2019-10-13 21:32:57,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-10-13 21:32:57,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 229 transitions. [2019-10-13 21:32:57,327 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 229 transitions. Word has length 24 [2019-10-13 21:32:57,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:32:57,327 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 229 transitions. [2019-10-13 21:32:57,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-10-13 21:32:57,328 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 229 transitions. [2019-10-13 21:32:57,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-13 21:32:57,328 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:32:57,329 INFO L380 BasicCegarLoop]: trace histogram [10, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:32:57,532 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:32:57,533 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:32:57,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:32:57,533 INFO L82 PathProgramCache]: Analyzing trace with hash 2121322217, now seen corresponding path program 4 times [2019-10-13 21:32:57,533 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:32:57,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807423596] [2019-10-13 21:32:57,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:32:57,534 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:32:57,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:32:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:32:57,664 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-10-13 21:32:57,665 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807423596] [2019-10-13 21:32:57,665 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485548707] [2019-10-13 21:32:57,665 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:32:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:32:57,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-13 21:32:57,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:32:57,859 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:32:57,859 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:32:58,100 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:32:58,100 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1926456422] [2019-10-13 21:32:58,103 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-13 21:32:58,103 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:32:58,103 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:32:58,103 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:32:58,104 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:32:58,136 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-13 21:32:58,296 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 47 for LOIs [2019-10-13 21:32:58,305 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-13 21:32:58,309 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 21:32:58,309 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 21:32:58,310 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (exists ((|v_main_~#a~0.base_BEFORE_CALL_4| Int) (v_prenex_26 Int) (|v_main_~#a~0.offset_BEFORE_CALL_4| Int) (v_main_~s~0_BEFORE_CALL_4 Int) (v_prenex_25 Int) (v_prenex_24 Int) (v_main_~i~0_BEFORE_CALL_4 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_26 99999) (<= v_prenex_26 0) (<= (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4))) (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4) 4)))) (and (not (<= (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4))) (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4) 4)))) (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_26 99999) (<= v_prenex_26 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~s~0_BEFORE_CALL_4 4)))) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4))) (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4))) (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~s~0_BEFORE_CALL_4 4)))) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:32:58,310 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (exists ((|v_main_~#a~0.base_BEFORE_CALL_4| Int) (v_prenex_26 Int) (|v_main_~#a~0.offset_BEFORE_CALL_4| Int) (v_main_~s~0_BEFORE_CALL_4 Int) (v_prenex_25 Int) (v_prenex_24 Int) (v_main_~i~0_BEFORE_CALL_4 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_26 99999) (<= v_prenex_26 0) (<= (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4))) (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4) 4)))) (and (not (<= (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4))) (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4) 4)))) (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_26 99999) (<= v_prenex_26 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~s~0_BEFORE_CALL_4 4)))) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4))) (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4))) (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~s~0_BEFORE_CALL_4 4)))) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)))) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:32:58,311 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-13 21:32:58,311 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (exists ((|v_main_~#a~0.base_BEFORE_CALL_4| Int) (v_prenex_26 Int) (|v_main_~#a~0.offset_BEFORE_CALL_4| Int) (v_main_~s~0_BEFORE_CALL_4 Int) (v_prenex_25 Int) (v_prenex_24 Int) (v_main_~i~0_BEFORE_CALL_4 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_26 99999) (<= v_prenex_26 0) (<= (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4))) (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4) 4)))) (and (not (<= (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4))) (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4) 4)))) (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_26 99999) (<= v_prenex_26 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~s~0_BEFORE_CALL_4 4)))) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4))) (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4))) (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~s~0_BEFORE_CALL_4 4)))) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)))) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:32:58,313 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-13 21:32:58,313 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-13 21:32:58,314 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-13 21:32:58,314 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:32:58,314 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:32:58,315 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:32:58,315 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-13 21:32:58,315 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 21:32:58,315 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-13 21:32:58,315 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-13 21:32:58,316 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((|v_main_~#a~0.base_BEFORE_CALL_4| Int) (v_prenex_26 Int) (|v_main_~#a~0.offset_BEFORE_CALL_4| Int) (v_main_~s~0_BEFORE_CALL_4 Int) (v_prenex_25 Int) (v_prenex_24 Int) (v_main_~i~0_BEFORE_CALL_4 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_26 99999) (<= v_prenex_26 0) (<= (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4))) (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4) 4)))) (and (not (<= (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4))) (select (select |#memory_int| v_prenex_24) (+ v_prenex_25 (* v_prenex_26 4) 4)))) (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_26 99999) (<= v_prenex_26 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~s~0_BEFORE_CALL_4 4)))) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4))) (= |__VERIFIER_assert_#in~cond| 1) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)) (and (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4) 4))) (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~i~0_BEFORE_CALL_4 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_4|) (+ |v_main_~#a~0.offset_BEFORE_CALL_4| (* v_main_~s~0_BEFORE_CALL_4 4)))) (<= v_main_~i~0_BEFORE_CALL_4 0) (< v_main_~i~0_BEFORE_CALL_4 99999)))) [2019-10-13 21:32:58,677 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 21:32:58,677 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13, 11] total 42 [2019-10-13 21:32:58,678 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97782266] [2019-10-13 21:32:58,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-10-13 21:32:58,679 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:32:58,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-10-13 21:32:58,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=1332, Unknown=0, NotChecked=0, Total=1722 [2019-10-13 21:32:58,681 INFO L87 Difference]: Start difference. First operand 159 states and 229 transitions. Second operand 42 states. [2019-10-13 21:33:04,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:33:04,329 INFO L93 Difference]: Finished difference Result 526 states and 825 transitions. [2019-10-13 21:33:04,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2019-10-13 21:33:04,331 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 31 [2019-10-13 21:33:04,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:33:04,334 INFO L225 Difference]: With dead ends: 526 [2019-10-13 21:33:04,335 INFO L226 Difference]: Without dead ends: 383 [2019-10-13 21:33:04,341 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4605 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4117, Invalid=12395, Unknown=0, NotChecked=0, Total=16512 [2019-10-13 21:33:04,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2019-10-13 21:33:04,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 311. [2019-10-13 21:33:04,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2019-10-13 21:33:04,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 465 transitions. [2019-10-13 21:33:04,383 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 465 transitions. Word has length 31 [2019-10-13 21:33:04,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:33:04,383 INFO L462 AbstractCegarLoop]: Abstraction has 311 states and 465 transitions. [2019-10-13 21:33:04,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-10-13 21:33:04,383 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 465 transitions. [2019-10-13 21:33:04,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-13 21:33:04,384 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:33:04,385 INFO L380 BasicCegarLoop]: trace histogram [22, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:33:04,590 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:33:04,591 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:33:04,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:33:04,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1568778202, now seen corresponding path program 5 times [2019-10-13 21:33:04,591 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:33:04,592 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538265723] [2019-10-13 21:33:04,592 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:33:04,592 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:33:04,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:33:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:33:04,755 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2019-10-13 21:33:04,756 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538265723] [2019-10-13 21:33:04,756 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708169152] [2019-10-13 21:33:04,756 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 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 [2019-10-13 21:33:04,871 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-10-13 21:33:04,871 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 21:33:04,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 21:33:04,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:33:04,892 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2019-10-13 21:33:04,893 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:33:05,023 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2019-10-13 21:33:05,024 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [722315898] [2019-10-13 21:33:05,025 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-13 21:33:05,025 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:33:05,026 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:33:05,026 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:33:05,026 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:33:05,047 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-13 21:33:05,186 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 47 for LOIs [2019-10-13 21:33:05,191 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-13 21:33:05,194 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 21:33:05,194 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 21:33:05,195 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (exists ((v_prenex_27 Int) (|v_main_~#a~0.base_BEFORE_CALL_5| Int) (v_prenex_29 Int) (|v_main_~#a~0.offset_BEFORE_CALL_5| Int) (v_prenex_28 Int) (v_main_~s~0_BEFORE_CALL_5 Int) (v_main_~i~0_BEFORE_CALL_5 Int)) (or (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4))) (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4) 4)))) (<= v_prenex_29 0)) (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4))) (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4) 4))) (<= v_prenex_29 0)) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))) (<= v_main_~i~0_BEFORE_CALL_5 0)) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~s~0_BEFORE_CALL_5 4)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))) (<= v_main_~i~0_BEFORE_CALL_5 0)) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~i~0_BEFORE_CALL_5 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))))) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~s~0_BEFORE_CALL_5 4)))) (<= v_main_~i~0_BEFORE_CALL_5 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))))))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:33:05,195 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (<= __VERIFIER_assert_~cond 0) (exists ((v_prenex_27 Int) (|v_main_~#a~0.base_BEFORE_CALL_5| Int) (v_prenex_29 Int) (|v_main_~#a~0.offset_BEFORE_CALL_5| Int) (v_prenex_28 Int) (v_main_~s~0_BEFORE_CALL_5 Int) (v_main_~i~0_BEFORE_CALL_5 Int)) (or (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4))) (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4) 4)))) (<= v_prenex_29 0)) (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4))) (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4) 4))) (<= v_prenex_29 0)) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))) (<= v_main_~i~0_BEFORE_CALL_5 0)) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~s~0_BEFORE_CALL_5 4)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))) (<= v_main_~i~0_BEFORE_CALL_5 0)) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~i~0_BEFORE_CALL_5 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))))) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~s~0_BEFORE_CALL_5 4)))) (<= v_main_~i~0_BEFORE_CALL_5 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))))))) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:33:05,195 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-13 21:33:05,196 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (<= __VERIFIER_assert_~cond 0) (exists ((v_prenex_27 Int) (|v_main_~#a~0.base_BEFORE_CALL_5| Int) (v_prenex_29 Int) (|v_main_~#a~0.offset_BEFORE_CALL_5| Int) (v_prenex_28 Int) (v_main_~s~0_BEFORE_CALL_5 Int) (v_main_~i~0_BEFORE_CALL_5 Int)) (or (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4))) (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4) 4)))) (<= v_prenex_29 0)) (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4))) (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4) 4))) (<= v_prenex_29 0)) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))) (<= v_main_~i~0_BEFORE_CALL_5 0)) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~s~0_BEFORE_CALL_5 4)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))) (<= v_main_~i~0_BEFORE_CALL_5 0)) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~i~0_BEFORE_CALL_5 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))))) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~s~0_BEFORE_CALL_5 4)))) (<= v_main_~i~0_BEFORE_CALL_5 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))))))) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:33:05,196 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-13 21:33:05,196 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-13 21:33:05,196 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-13 21:33:05,196 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:33:05,197 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0))) [2019-10-13 21:33:05,197 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:33:05,197 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-13 21:33:05,197 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 21:33:05,198 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-13 21:33:05,198 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-13 21:33:05,198 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((v_prenex_27 Int) (|v_main_~#a~0.base_BEFORE_CALL_5| Int) (v_prenex_29 Int) (|v_main_~#a~0.offset_BEFORE_CALL_5| Int) (v_prenex_28 Int) (v_main_~s~0_BEFORE_CALL_5 Int) (v_main_~i~0_BEFORE_CALL_5 Int)) (or (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 0) (not (<= (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4))) (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4) 4)))) (<= v_prenex_29 0)) (and (< v_prenex_29 99999) (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4))) (select (select |#memory_int| v_prenex_27) (+ v_prenex_28 (* v_prenex_29 4) 4))) (<= v_prenex_29 0)) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 1) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))) (<= v_main_~i~0_BEFORE_CALL_5 0)) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~s~0_BEFORE_CALL_5 4)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))) (<= v_main_~i~0_BEFORE_CALL_5 0)) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 0) (<= v_main_~i~0_BEFORE_CALL_5 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))))) (and (< v_main_~i~0_BEFORE_CALL_5 99999) (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~s~0_BEFORE_CALL_5 4)))) (<= v_main_~i~0_BEFORE_CALL_5 0) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_5|) (+ |v_main_~#a~0.offset_BEFORE_CALL_5| (* v_main_~i~0_BEFORE_CALL_5 4) 4))))))) [2019-10-13 21:33:05,518 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 21:33:05,519 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 11] total 33 [2019-10-13 21:33:05,519 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246237071] [2019-10-13 21:33:05,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-10-13 21:33:05,521 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:33:05,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-10-13 21:33:05,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=811, Unknown=0, NotChecked=0, Total=1056 [2019-10-13 21:33:05,522 INFO L87 Difference]: Start difference. First operand 311 states and 465 transitions. Second operand 33 states. [2019-10-13 21:33:08,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:33:08,400 INFO L93 Difference]: Finished difference Result 668 states and 1030 transitions. [2019-10-13 21:33:08,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-10-13 21:33:08,401 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 44 [2019-10-13 21:33:08,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:33:08,405 INFO L225 Difference]: With dead ends: 668 [2019-10-13 21:33:08,405 INFO L226 Difference]: Without dead ends: 395 [2019-10-13 21:33:08,408 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1402 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1114, Invalid=4142, Unknown=0, NotChecked=0, Total=5256 [2019-10-13 21:33:08,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2019-10-13 21:33:08,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 323. [2019-10-13 21:33:08,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2019-10-13 21:33:08,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 477 transitions. [2019-10-13 21:33:08,445 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 477 transitions. Word has length 44 [2019-10-13 21:33:08,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:33:08,446 INFO L462 AbstractCegarLoop]: Abstraction has 323 states and 477 transitions. [2019-10-13 21:33:08,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-10-13 21:33:08,446 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 477 transitions. [2019-10-13 21:33:08,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-13 21:33:08,447 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:33:08,448 INFO L380 BasicCegarLoop]: trace histogram [22, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:33:08,654 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:33:08,654 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:33:08,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:33:08,654 INFO L82 PathProgramCache]: Analyzing trace with hash -2052712954, now seen corresponding path program 6 times [2019-10-13 21:33:08,655 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:33:08,655 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455234619] [2019-10-13 21:33:08,655 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:33:08,655 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:33:08,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:33:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:33:08,947 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2019-10-13 21:33:08,948 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455234619] [2019-10-13 21:33:08,948 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332118246] [2019-10-13 21:33:08,948 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2019-10-13 21:33:09,059 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-13 21:33:09,059 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 21:33:09,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 24 conjunts are in the unsatisfiable core [2019-10-13 21:33:09,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:33:09,569 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2019-10-13 21:33:09,569 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:33:10,358 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2019-10-13 21:33:10,359 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1508318432] [2019-10-13 21:33:10,360 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-13 21:33:10,360 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:33:10,360 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:33:10,360 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:33:10,360 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:33:10,388 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-13 21:33:10,501 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 47 for LOIs [2019-10-13 21:33:10,507 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-13 21:33:10,511 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 21:33:10,511 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 21:33:10,512 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 156#(and (exists ((|v_main_~#a~0.offset_BEFORE_CALL_6| Int) (v_main_~i~0_BEFORE_CALL_6 Int) (v_main_~s~0_BEFORE_CALL_6 Int) (|v_main_~#a~0.base_BEFORE_CALL_6| Int) (v_prenex_30 Int) (v_prenex_32 Int) (v_prenex_31 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_6 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~s~0_BEFORE_CALL_6 4)))) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_31 99999) (not (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4) 4)))) (<= v_prenex_31 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~s~0_BEFORE_CALL_6 4)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_6 99999) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_31 99999) (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4) 4))) (<= v_prenex_31 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:33:10,512 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 166#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((|v_main_~#a~0.offset_BEFORE_CALL_6| Int) (v_main_~i~0_BEFORE_CALL_6 Int) (v_main_~s~0_BEFORE_CALL_6 Int) (|v_main_~#a~0.base_BEFORE_CALL_6| Int) (v_prenex_30 Int) (v_prenex_32 Int) (v_prenex_31 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_6 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~s~0_BEFORE_CALL_6 4)))) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_31 99999) (not (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4) 4)))) (<= v_prenex_31 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~s~0_BEFORE_CALL_6 4)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_6 99999) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_31 99999) (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4) 4))) (<= v_prenex_31 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0)))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:33:10,512 INFO L193 IcfgInterpreter]: Reachable states at location L36-3 satisfy 138#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-13 21:33:10,512 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 161#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((|v_main_~#a~0.offset_BEFORE_CALL_6| Int) (v_main_~i~0_BEFORE_CALL_6 Int) (v_main_~s~0_BEFORE_CALL_6 Int) (|v_main_~#a~0.base_BEFORE_CALL_6| Int) (v_prenex_30 Int) (v_prenex_32 Int) (v_prenex_31 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_6 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~s~0_BEFORE_CALL_6 4)))) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_31 99999) (not (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4) 4)))) (<= v_prenex_31 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~s~0_BEFORE_CALL_6 4)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_6 99999) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_31 99999) (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4) 4))) (<= v_prenex_31 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0)))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-13 21:33:10,513 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 170#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-13 21:33:10,513 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 73#(and (<= 0 main_~i~0) (<= main_~i~0 0) (= main_~i~0 0)) [2019-10-13 21:33:10,513 INFO L193 IcfgInterpreter]: Reachable states at location L37 satisfy 146#(and (<= main_~x~0 1) (<= 100000 main_~k~0) (<= main_~i~0 0)) [2019-10-13 21:33:10,513 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:33:10,513 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:33:10,514 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 175#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-13 21:33:10,514 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 21:33:10,514 INFO L193 IcfgInterpreter]: Reachable states at location L31-3 satisfy 130#(and (= main_~x~0 0) (<= 100000 main_~k~0) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-13 21:33:10,514 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-13 21:33:10,514 INFO L193 IcfgInterpreter]: Reachable states at location L20-2 satisfy 122#true [2019-10-13 21:33:10,514 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 151#(exists ((|v_main_~#a~0.offset_BEFORE_CALL_6| Int) (v_main_~i~0_BEFORE_CALL_6 Int) (v_main_~s~0_BEFORE_CALL_6 Int) (|v_main_~#a~0.base_BEFORE_CALL_6| Int) (v_prenex_30 Int) (v_prenex_32 Int) (v_prenex_31 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_6 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~s~0_BEFORE_CALL_6 4)))) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_prenex_31 99999) (not (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4) 4)))) (<= v_prenex_31 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~s~0_BEFORE_CALL_6 4)))) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_6 99999) (not (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4)))) (<= v_main_~i~0_BEFORE_CALL_6 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_prenex_31 99999) (<= (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4))) (select (select |#memory_int| v_prenex_32) (+ v_prenex_30 (* v_prenex_31 4) 4))) (<= v_prenex_31 0)) (and (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_6 99999) (<= (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4))) (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_6|) (+ |v_main_~#a~0.offset_BEFORE_CALL_6| (* v_main_~i~0_BEFORE_CALL_6 4) 4))) (<= v_main_~i~0_BEFORE_CALL_6 0)))) [2019-10-13 21:33:11,008 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 21:33:11,008 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 25, 25, 11] total 77 [2019-10-13 21:33:11,008 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871672889] [2019-10-13 21:33:11,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 77 states [2019-10-13 21:33:11,010 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:33:11,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2019-10-13 21:33:11,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1455, Invalid=4397, Unknown=0, NotChecked=0, Total=5852 [2019-10-13 21:33:11,012 INFO L87 Difference]: Start difference. First operand 323 states and 477 transitions. Second operand 77 states.